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Cutting, puncturing or piercing
Subclass of:
606 - Surgery
Patent class list (only not empty are listed)
Deeper subclasses:
|Class / Patent application number
|Number of patent applications / Date published
|Puncturing or piercing
|Cutter carried on elongated probe-like member
|Cutter having vibratory drive means
|Rotary cutter
|Shear type (e.g., scissors, etc.)
|Means to limit cutter penetration depth (e.g., dura guard)
|Saw type
|DEVICE FOR PERFORMING SURGERY - A scalpel for performing complex surgeries, such as c-sections, is formed of a body that is preferably elongated and shaped and sized to fit ergonomically into the hands of surgeons. The body has surfaces that are joined to each other by smooth transition elements to insure that the body has no points or sharp edges that could cut or scratch the surgeon or the patient. The body is formed with a triangular notch formed of a beak and an extension. A surgical blade, preferably a standard off-the-shelf surgical blade, is imbedded in the body and the only portion of the blade that is accessible is a portion of its cutting edge spanning the notch. The scalpel is used by introducing the beak into a slit in the tissue with the blade portion facing the direction in which the cut is to be made. The body of the scalpel is then grasped firmly and advanced to make the cut. The initial incision can be made with the tip of the beak.
|Safety Scalpel with Blade Retention - A surgical scalpel is presented which combines the attributes of cost-effectiveness in design and safety of single use scalpel devices and the ability to be autoclavable so as to promote the device as a multiple use device as well. The design of the device is such as to afford medical personnel the feel, weight and balance of the original metal unguarded scalpel, while maintaining safety through the shielding of the blade during non-use and the ability to dispose of the blade in a safe controlled manner. The user is able to remove the blade through the biasing action of a living hinge and have it securely attached to the shield of the device for later discharge into a sharps container, all without having to place ones hands near the unguarded sharp. The device to designed to use existing styles of blades currently available without needing costly inventories of specially created blades.
|Surgical Forceps - A forceps includes an end effector assembly having first and second jaw members movable between a spaced-apart position and an approximated position for grasping tissue therebetween. A knife assembly having a cutting blade disposed at a distal end thereof is also provided. The knife assembly is translatable relative to the end effector assembly between a retracted position and an extended position, wherein the cutting blade extends between the jaw members to cut tissue grasped therebetween. The knife assembly includes a proximal component and a first distal component that includes the cutting blade. The proximal and first distal components are removably coupled to one another to facilitate replacement of the first distal component while the end effector assembly remains in a substantially assembled condition, i.e., without requiring substantial disassembly of the end effector assembly.
|LIQUID JET SURGICAL INSTRUMENT HAVING A DISTAL END WITH A SELECTIVELY CONTROLLABLE SHAPE - The invention provides a variety of surgical instruments for forming a liquid jet, which are useful for performing a wide variety of surgical procedures. In some embodiments, the invention provides surgical liquid jet instruments having a pressure tube and an evacuation tube, where the pressure tube includes at least one nozzle for forming a liquid jet and where the evacuation tube includes a jet-receiving opening for receiving the liquid jet when the instrument is in operation. In some embodiments, the distal ends of both the pressure and evacuation tubes have a first configuration in a non-relaxed state and a second configuration in a more relaxed state. In some embodiments, a straightener is constructed to selectively control the configuration of the distal ends of both the pressure and evacuation tubes. The invention also provides surgical methods utilizing the inventive surgical liquid jet instruments for cutting or ablating a selected tissue within portions of a patient's spine, such as within the intervertebral disc.
|Device For Performing An Incision - The present invention relates to a device for performing an incision in a region of interest of a patient, said device including a blade portion for providing the incision, said blade attached to a biasing means to enact a vertical force on said blade so that the blade is biased in a retracted position, a triggering means for activating the blade to move from a previously retained pre-operating position, to an operating position where the blade contacts a region of interest of the patient thereby performing an incision, and to a post operating position, a guide means to guide a path of the blade as it moves in an operating position said blade portion adapted to engage said guide means when in an operating position, so that a path of the blade in an operating position is guided, the device further including a housing to house said device, said housing having an elongate slot at one end, where in an operating position, the blade extends therethrough said slot, and in a pre and post operating position, the blade does not extend therethrough said slot, wherein the blade, biasing means and the triggering means are integral to one another, forming a plate.
|Tissue Slicer - A tissue slicer having a partially open base for permitting the slicing blades to transverse therethrough, a dual pivoting member for activating the sliding blades in a vertical direction, a blade cartridge with a plurality of blades and a multi-pin specimen holder. The device secures the tissue specimen without distortion in place during the slicing process, protect the user while cutting specimens, standardizes tissue sections for optimal processing, improves the quality of sections for microscopic evaluation, and improves diagnostic accuracy and reliability.
|RETRACTABLE AND REMOVABLE BLADE UNIT FOR A SCALPEL - A detachable blade cartridge for a scalpel is provided. The cartridge includes a body configured for attachment to a scalpel handle, a scalpel blade and a blade cover engaged to the body for travel along the body between a closed position covering the blade and a retracted position to expose said blade for use. The cartridge includes a releasable catch for selectively retaining the cover in the open position or the closed position. The cartridge also includes a one-way catch comprising a detent in one of the cover or the body and a recess in the other of the cover or body to restrict movement of the cover relative to the body in a distal direction past a limit position while permitting movement in an opposed proximal direction.
|SCALPEL BLADE SAFETY ACCESSORY - A scalpel blade accessory and cartridge are provided wherein a tubular guard is slideable over the scalpel blade carrier between a retracted position in which the blade carrier is positioned to expose any scalpel blade associated with it for use and an extended position in which the guard covers the blade carrier and any blade thereon. The scalpel blade has a mounting slot for attachment to a lug on a standard scalpel handle for use. The blade carrier has a bridge spanning an alignment face so as to provide space for a scalpel blade between the alignment face and bridge. A blade catch cooperates with a rear end of the mounting slot to hold a relevant scalpel blade captive. The blade catch is disengagable by assembling it onto a standard handle, in use.
|Intraoperative Membrane Cutting Tool - A tool for forming a predetermined shaped and sized piece of tissue membrane from a sheet of surgically implantable tissue membrane comprising a body having a cutting portion configured to engage and to form a piece from a sheet of tissue membrane and a drive portion configured to apply a force to the cutting portion to form the piece of tissue membrane. The shapes and sizes of the cutting portions include those typically used in medical procedures.
|INCISION-LESS LAPAROSCOPIC INSTRUMENT - A laparoscopic instrument is placed into the abdomen without the creation of a skin incision. The laparoscopic instrument includes a shaft that does not exceed 1.6 mm in diameter. The shaft has a beveled end and is inserted into an abdomen similar to the placement of a needle, without use of a scalpel. Operating instruments are introduced into the abdomen through the umbilical port using a docking device, and are then docked to the beveled end of the shaft after the shaft is introduced through the abdomen. Multiple types of operating instruments can be placed on the beveled end of the shaft during the surgical procedure. Each operating instrument is docked with a holster during introduction into and withdrawal from the umbilical port and is removed from the holster only when in use. When removed from the holster it is locked to the shaft and cannot be dropped.
|Microsurgical probe - Microsurgical probes having a distal tip with a flat outer surface and a flat inner surface, and methods of forming such probes, are disclosed.
|Surgical instrument assembly - A surgical instrument assembly (
|Tissue resection device - A surgical instrument which can be utilized to hold, view, transect, and suture tissue. The surgical instrument can include a tissue-receiving cavity which can be placed in fluid communication with a vacuum source such that the tissue can be held in the cavity. The surgical instrument can further include a housing and a cutting element, wherein the cutting element can be moved relative to the housing to resect the tissue positioned within the cavity. The surgical instrument can also include a passage configured to receive a suture applicator which can be moved between first and second positions to incise the tissue. In at least one embodiment, the passage can be configured to align and orient the suture applicator relative to the tissue positioned within the cavity. The surgical instrument can further include a passage configured to slidably receive an endoscope where the passage can align and orient the endoscope.
|Tissue splitter - A tissue splitter for creating a subcutaneous cut is disclosed. The tissue splitter includes a retractable blade located at the distal end. The tissue splitter is configured to be insertable into a slotted cannula that is placed via an incision to a location proximate a patient's spine. An actuator at the proximal end of the instrument projects the blade located at the distal end from its retracted state through the slot of the cannula to an extracted state to subcutaneously cut tissue at a location outside the cannula. The instrument is configured such that the blade is movable inside the slot of the cannula by a distance such that the cut created by the blade remains subcutaneous and does not puncture the skin of the patient. The distance is adjustable for the size and depth of the cut and is limited by an adjustment collar. The tissue splitter is ideally suited for creating a pathway for the subcutaneous insertion and implantation of a spinal stabilization rod between two bone anchors placed in vertebral bodies.
|Method for treating obstructed paranasal frontal sinuses - A set of sinus balloon catheters are provided for treating a patient's paranasal sinus system, including dilating prepared openings, and natural ostia and ducts and excising sinus cavities. These include a balloon catheter with a bend placing a distal segment at 90 degrees to a proximal segment and a balloon catheter which is substantially straight. The catheters have sufficient stiffness and column strength that the balloon carrying distal segment of the catheter can be pushed into the prepared opening, natural ostium or duct, or sinus to be excised. The catheters have appropriate inflated working diameters and appropriate outer diameters with the balloon deflated that will enable the catheter to be pushed into the respective prepared opening, natural ostium or duct, or sinus cavity to be excised. The methods use the balloon catheters to dilate prepared openings to selected parts of the sinus system, to dilate natural ostia and ducts of the sinus system, and/or to dilate sinus cavities to remove them.
|FLUID JET DEVICE, DRIVE DEVICE OF FLUID JET DEVICE, SURGICAL INSTRUMENT, AND METHOD OF DRIVING FLUID JET DEVICE - A fluid jet device including a fluid chamber with variable capacity and a capacity varying section adapted to vary the capacity of the fluid chamber in response to supply of a drive signal. A drive waveform section making the capacity varying section operate so as to compress the capacity of the fluid chamber and a restoring drive waveform section making the capacity varying section operate to restore the capacity of the fluid chamber before compressing the capacity in a signal waveform. The drive signal supply section controls supply content of the drive signal to provide a restoring period adapted to restore a steady state of the fluid flowing toward an inside of the fluid chamber in a period from when the compressing drive waveform section in the drive signal is supplied to when a subsequent compressing drive waveform section is supplied.
|SURGICAL APPRATUS FOR CUTTING TISSUE - A system of separating a membrane from underlying tissue. The system includes a separation member operable to separate the membrane from the tissue and a cutting element in communication with the separation member. The cutting element is also operable to dissect the membrane without harming the underlying tissue.
|ELECTROFORMED LIQUID JET SURGICAL INSTRUMENT - Certain embodiments of the invention provide a variety of methods of manufacturing a liquid jet-forming surgical instrument. According to these methods, a nozzle assembly of the instrument is electroformed on a mandrel. The nozzle assembly includes a nozzle providing a jet-opening, wherein the nozzle is shaped to form a liquid jet. In some embodiments, the mandrel includes a first mandrel portion and a second mandrel portion. Once the nozzle assembly is formed, the mandrel may be removed from the nozzle assembly. The nozzle assembly may in certain embodiments be coupled to an outlet of the pressure tube. In certain embodiments, an inlet of an evacuation tube is positioned such that a jet-receiving opening of the evacuation tube is positioned opposite the jet-opening of the nozzle.
|PUNCTURE DEVICE - In a conventional puncture device, proficiency is required for aligning a drug solution outlet provided in a blade edge of a puncture needle with dermis, and it has been difficult for beginners to align the blade edge (drug solution outlet) with dermis.
|Methods and Systems for Performing Submucosal Medical Procedures - Instruments, systems and methods are provided for performing submucosal medical procedures in a desired area of the digestive tract using endoscopy. Instruments include a safe access needle injection instrument, a submucosal tunneling instrument, a submucosal dissection instrument, a mucosal resection device. Systems include a combination of one or more of such instruments with or without injectable agents. Embodiments of various methods for performing the procedures are also provided.
|Channeled wire guide for a scalpel - A scalpel guide system for a bladed surgical instrument. A pair of wire guides attach to a scalpel, for controlled travel of the scalpel along the wire. The wire guides of the scalpel guide system are especially useful as an enhancement to the "Seldinger technique," or any surgical procedure employed for the percutaneous placement of elongated, tubular devices, with the aid of a guidewire or filament wire. The scalpel can be any knifelike surgical device, conventionally including a blade attached to a handle. The scalpel guiding system preferably includes a pair of wire guides, each extending from the scalpel, which can be disposable, as can the blade, independent of the scalpel. The pair of wire guides each have generally open funnel-shapes, with their wider portion facing the gap formed between the two guides. The user places this medal gap on the wire and rotates the scalpel to engage the wire. This engagement allows the user or surgeon to move the scalpel along the wire in a controlled and guided manner, for precise cutting or incising, as required for the needed procedure or operation.
|TISSUE SECTIONING BLADE - A cutting device or tissue sectioning blade is disclosed that includes a blade body including a straight cutting edge, a back edge located opposite the straight cutting edge, a first end extending from the back edge to the straight cutting edge, and a second end located opposite the first end and extending from the back edge to the straight cutting edge.
|METHODS FOR AMELIORATING TISSUE TRAUMA FROM SURGICAL INCISIONS - Methods for ameliorating tissue trauma from a surgical incision comprise making the surgical incision with a cutting instrument comprising a cutting instrument body defining two opposed sides and a direction of elongation, and having at least one cutting edge extending along the direction of elongation. The cutting edge defines an ultimate edge and two beveled faces adjacent the ultimate edge. The cutting edge of the cutting instrument has at least one characteristic selected from the group consisting of (a) a uniform ultimate edge having a maximum height deviation of 4 m or less along any 680 m segment of thereof; (b) each beveled face having a maximum height deviation of 4 m or less along any 680 m segment of thereof; and (c) each beveled face adjacent the ultimate edge having a root mean square surface roughness (Rq) of not more than about 200 nm. Improved cutting instruments are also provided.
|Ultrasonic surgical system - An ultrasonic surgical system includes an ultrasonic transmission member having a proximal end and a distal end. An ultrasonically actuated end-effector is attached at the distal end of the transmission member. A pressurized fluid delivery system includes a fluid nozzle in communication with at least one fluid source. The fluid nozzle is arranged and configured to deliver pressurized fluid to soft tissue at a rate to move the soft tissue away from the end-effector during use.
|STATUS CONTROL FOR ELECTRICALLY POWERED SURGICAL TOOL SYSTEMS - The present invention relates to a method for determining a utilization level (UL; UL
|CUTTING BLADE FOR MORCELLATOR - A cutting blade for a surgical morcellator has a distal end and a sharpened cutting edge situated at the distal end for transecting tissue to form tissue morsels, the cutting blade being structured to minimize contact between the sharpened edge and a tissue grasping instrument used with the morcellator during a surgical procedure. The cutting blade includes a generally cylindrically-shaped sidewall defining an axial bore for the passage of transected tissue morsels therethrough, the sidewall having an outer surface residing generally in a first cylindrical plane, an inner surface residing generally in a second cylindrical plane, and a sloped surface, the inner surface of the sidewall being disposed radially inwardly of the outer surface of the sidewall, the sloped surface extending transversely between the inner surface and the outer surface in the direction of the distal end of the cutting blade and joining the outer surface at an acute angle to define with the outer surface the sharpened cutting edge, the sharpened cutting edge residing in the first cylindrical plane in which the outer surface of the sidewall generally resides, wherein the sloped surface of the cutting blade sidewall extends radially inwardly beyond the second cylindrical plane in which the inner surface of the cutting blade sidewall generally resides to define a circular protrusion situated radially inwardly of the inner surface for selective engagement with the tissue grasping instrument used with the morcellator during a surgical procedure.
|GLAUCOMA SURGERY - Eye diseases such as glaucoma can be treated using a composition containing cross-linked hyaluronic acid or a cross-linked salt of hyaluronic acid such as sodium hyalurate. The composition can be a monophasic gel. The composition can include a cross-linking agent such as 1,4-butanediol diglycidylether. The composition can contains about 2.25% (w/w) of the salt of hyaluronic acid. The composition can have a cross-linking rate of about 0.5 to 50%.
|FLUID EJECTION DEVICE AND FLUID EJECTION METHOD - A fluid ejection device includes: a fluid chamber in which fluid flows; a volume varying unit having a pressure generating element that varies the volume of the fluid chamber on the basis of a driving signal; an inlet fluid channel and an outlet fluid channel intercommunicating with the fluid chamber; a fluid channel pipe having a connection fluid channel that intercommunicates with the outlet fluid channel at a first end thereof and intercommunicates with a fluid ejection port at a second end thereof; a fluid supply unit that supplies fluid to the inlet fluid channel; and a controller that applies a driving signal to the pressure generating element and controls variation of the volume of the fluid chamber by the volume varying unit, wherein the controller applies a driving signal to the pressure generating element so that a maximum ejection velocity of fluid in liquid is larger than a maximum ejection velocity of fluid in the air.
|Device and Method for Conveying a Liquid for Medical Purposes - The object of the invention is therefore to improve the safety management of a generic device and a corresponding method for conveying a liquid. To this end, it is proposed that the measuring device and the regulating device are constructed in such a way that the safety circuit of the regulating device switches off the pump when the liquid flow falls below a lower limit value I
|Feedback control of on/off pneumatic actuators - A surgical system having feedback control for pneumatic actuators includes a pneumatic pressure source and a vitrectomy cutter having a cutting mechanism, a first pneumatic input port, and a second pneumatic input port. A pneumatic actuator is configured to direct pneumatic pressure to one of the first and second pneumatic input ports. A first pressure transducer is located and configured to detect actual pressure at the first pneumatic input port, and a second pressure transducer is located and configured to detect actual pressure at the second pneumatic input port. A controller communicates with the first and second pressure transducers and the pneumatic actuator. It is configured to change the pneumatic actuator actuation timing based on the data communicated from the first and second pressure transducers.
|Safety Scalpel With Replaceable Blade Cartridge And Safety Brake - A safety scalpel that incorporates a reusable metal scalpel handle (
|Surgical Knife Handle and Knife - A surgical knife handle comprising a handle body (
|SAFETY SCALPEL - A scalpel enabling both safe blade engagement or disengagement and safe passing among personnel during surgical procedures. The scalpel is positionable in three configurations, including a blade shielded position, a blade exposed and operational position and a fully extended position for engagement and disengagement of the blade.
|Apparatus and methods for carpal tunnel release - An apparatus and methods for treating carpal tunnel syndrome are disclosed herein. A surgical knife and guide tool for performing carpal tunnel release surgery includes an elongated handle having a cutting head comprising an upper edge, a bottom edge, and a cutting edge therebetween, wherein the bottom edge comprises at least one glider extending from the bottom edge of the cutting head; and an elongated body having a longitudinal opening comprising a top portion having a first width for accepting the cutting head of the elongated handle and a bottom portion having a second width for accepting the at least one glider extending from the bottom edge of the cutting head, wherein the at least one glider controls longitudinal movement of the elongated handle.
|APPARATUS AND METHOD FOR SURGERY - The disclosure pertains to a surgical implement that has a gripping end and a surgical end. The surgical end includes a first side, a second side opposite the first side and a pointed distal end wherein the first side and the distal end are blunt and the second side has a surgically sham cutting edge. This surgical implement can be utilized during surgical procedures to maintain an incision in an open position or enlarge or modify an incision to accommodate an endoscope and other surgical implements. The use of this surgical implement to cut, expand and maintain an open incision saves time and minimizes trauma to the tissue.
|Surgical Skin Punch Apparatus - A surgical skin punch apparatus to excise subcutaneous abnormalities and allow for efficient resealing of the skin surface. The surgical skin punch apparatus generally includes an elongated handle and a cutting member including a plurality of cutting edges, wherein the cutting member extends from the elongated handle. The cutting member is comprised of a C-shape to form a pivotal skin fragment to access subcutaneous material beneath. A method of using the apparatus is also described.
|VAPOR ASSISTED FLUID CUTTING DEVICE AND METHOD - Various methods and devices are provided for cutting tissue using a high pressure fluid jet. In one exemplary embodiment, a high pressure fluid jet delivery device is provided having a nozzle adapted to direct fluid to a tissue site. A heating element is disposed on the nozzle and is adapted to heat fluid surrounding a high pressure fluid jet flowing from the nozzle to form at least one vapor bubble. The vapor bubble can reduce the interaction between the high pressure fluid jet and the fluid surrounding the high pressure fluid jet.
|Retractable safety knife - A retractable safety knife has a hollow handle with an opening at an end thereof, a pusher that is movably disposed within the handle and is operable by a user, and a blade that is connected with an end of the pusher. When the pusher moves from a blade-retracted position to a blade-extended position, the blade extends outwardly from the handle opening and rotates from a nested position to an extended position.
|SCALPEL BLADE HAVING DUAL INDENTATIONS ON BACK EDGE - The present invention is directed to a scalpel blade having a longitudinal axis, the scalpel blade preferably comprising a first edge coincident with the longitudinal axis, a second edge coincident with the longitudinal axis, a cutting edge located along at least a portion of the first edge, and a first indentation in juxtaposition with and spanning at least a portion of the second edge, wherein the first indentation is offset in a first direction from the second edge. The scalpel blade preferably further comprises a second indentation in juxtaposition with and spanning at least a portion of the first indentation, wherein the second indentation is offset in a direction opposite from the second edge. The scalpel blade can either be removably attached to a reusable scalpel handle or indelibly attached to a disposable scalpel.
|DRILL AND FLAVORED FLUID PARTICLES COMBINATION - A medical apparatus is constructed to have a proximal end and a distal end, with the distal end including a source of mechanical tissue disruption that is configured to treat or ablate a target surface. The source of mechanical tissue disruption includes a tissue-disrupting distal end, and the medical apparatus further includes a flavored particle output for directing flavored particles in a direction toward the tissue-disrupting distal end. Another feature of the present invention includes a medical apparatus having a proximal end and a distal end. The distal end of the medical apparatus includes a source of tissue displacement that is configured to move or displace a portion of the target surface, and that is formed to have a tissue-displacing distal end. The medical apparatus can be configured to have a flavored particle output for directing flavored particles in a direction toward the tissue-displacing distal end.
|Small Gauge Mechanical Tissue Cutter/Aspirator Probe For Glaucoma Surgery - A small gauge mechanical tissue cutter/aspirator probe useful for removing the trabecular meshwork of a human eye has a generally cylindrical outer cannula, an inner cannula that reciprocates in the outer cannula, a port located near or at the distal end of the outer cannula on a side or tip of the outer cannula, and a guide with a distal surface located on the distal end of the outer cannula. A distance between the distal surface of the guide and the port is approximately equal to the distance between the back wall of Schlemm's canal and the trabecular meshwork.
|DEVICE FOR FORMING A BORE TO FACILITATE INSERTION OF AN ARCUATE NAIL INTO A BONE - A device for forming a circular arc-shaped bore includes: a stiff circular arc-shaped tube having a central axis; a flexible shaft insertable into the tube; and a head mountable to a first end of the shaft.
|SKIN LESION EXCISER AND SKIN-CLOSURE DEVICE THEREFOR - A device for excising tissue and closing a wound that results from excision of the tissue includes structure defining an aperture into which tissue to be excised is exposed. The device also includes a cutting member for excising the tissue, a closure member for closing the wound, and an actuatable drive member associated with the structure. The drive member is actuatable to move the cutting member relative to the aperture for excising the tissue that is exposed in the aperture and for closing the wound with the closure member.
|SURGICAL INSTRUMENT AND METHOD OF USE FOR PERFORMING TISSUE RESECTION - A surgical instrument is disclosed. The surgical instrument includes a first cutting element, a second cutting element, a guide member and an actuation mechanism with the guide member being attached to either the first cutting element, second cutting element or the actuation mechanism. The first and second cutting elements are operatively connected to the actuation mechanism with the actuation mechanism adapted to move at least one of the two cutting elements to resection tissue. The actuation mechanism includes a handle, trigger grip and at least one connecting member that connects the trigger grip to either one or both of the cutting elements to cause movement of the cutting elements when the trigger grip is pressed. A surgical method for performing an image-guided resection of diseased tissue is also disclosed. Further, a kit for tissue resection is disclosed that includes a plurality of surgical instruments and various configured elongated pins.
|MEDICAL KNIFE - To provide a medical knife which enables the angle of the blade with respect to the grasp portion to be varied with ease without requiring attaching and detaching of the blade and is safe, hygienic and excellent in visibility, the medical knife has a knife body having a grasp portion, a blade and a blade holder portion for holding the blade, a blade cover that covers part of the knife body, and a lock portion that permits the blade cover to be locked in a storage portion for storing the blade in the knife body and in an exposure position for exposing the blade from the knife body, the lock portion permits the blade cover and the knife body to be locked in the storage position and a plurality of exposure positions, and the angles of the blade exposed in the plurality of exposure positions are made mutually different.
|Stripping Knife - [Problems] To ensure the sharpness of a stripping knife whereby a part of a living tissue is incised and stripped while preventing a cut along the thickness direction.
|Applicator For Water-Jet Surgery - Customary applicators for water-jet surgery comprise a handle, a pressure conduit to supply a working fluid from a pressure source and a nozzle at the end of the pressure conduit to generate a fluid jet with specified properties. It is now proposed to provide a set of molded parts that differ from one another in size and/or shape, that can be detachably, individually connected to the handle to form guide devices to guide the elastically deformable pressure conduit from the handle to the nozzle along a course predetermined by the relevant molded part.
|LIQUID INJECTION DEVICE - A liquid injection device includes: a chamber to which the liquid to be injected is supplied and the injection nozzle is connected; a pump that pumps the liquid into the chamber; a volume varying unit that varies the volume of the chamber by being deformed according to a drive voltage applied thereto; and a drive voltage applying unit that applies the drive voltage having a predetermined voltage waveform to the volume varying unit in a state in which the liquid is supplied to the chamber, wherein the pump is a unit that pumps the liquid to the chamber in a state involving the pressure variations, and the drive voltage applying unit is a unit that applies the drive voltage to the volume varying unit while compensating the influence applied by the pressure variations of the pumped to the chamber on injection by varying the voltage waveform of the drive voltage.
|MICROSURGICAL CUTTING INSTRUMENTS - The present invention relates to methods and apparatus for self-sharpening micro surgical blades, knives and assemblies.
|Device For Preparing Tissue Discs, In Particular Cartilaginous Discs - The invention relates to a device for preparing tissue discs, in particular cartilaginous discs. A device for preparing tissue discs that is of simple structure and ensures safe handling comprises, in addition to a clamping device for securing a tissue block by clamping, at least one cutting device for treating the tissue block held in the clamping device.
|Method and System for Improving Surgical Blades by the Application of Gas Cluster Ion Beam Technology and Improved Surgical Blades - Methods and systems for the improvement of a crystalline and/or poly-crystalline surgical blade include gas cluster ion beam irradiation of the blades in order to smooth; or to sharpen; or to reduce the brittleness and thus reduce susceptibility of the blade to crack, chip, or fracture; or to render the blades hydrophilic. Crystalline or poly-crystalline surgical blade (silicon for example) having a thin film cutting edge with improved properties.
|Medical Bladed Device And Method For Coating Medical Bladed Device - Provided is a medical bladed device reduced in piercing resistance by coating with a silicone. Also provided is a coating method by which a satisfactory silicone coating is formed on a medical bladed device. A medical bladed device (knife (A)) having a cutting portion (
|Systems and Methods for Dynamic Pneumatic Valve Driver - In various embodiments, a pneumatic system valve for a surgical console may be controlled by a controller configured to adjust a valve duty cycle (VDC) of the valve to reduce a difference between the valve's differential pressure and a desired differential pressure. In some embodiments, average differential pressures may be detected and relayed from a pressure sensor, coupled to one or more ports of the valve, to the controller. The controller may compare the measured average differential pressure against the desired average differential pressure (e.g., received from the user). The controller may then determine a modified VDC to reduce a difference between the desired average differential pressure and the measured average differential pressure. In some embodiments, the desired average differential pressure may be determined based on input received from a user of the surgical console.
|SAFETY SCALPEL HANDLE - A scalpel handle includes a sliding shield to block the blade tip or surround the blade when the scalpel is not in use. The shield is advantageously slidable from an extended position to a withdrawn position, wherein the shield is substantially within the handle. Consequently, the user's hand grasps only onto the handle, and not the shield. This helps to provide a more solid feel, similar to a conventional scalpel handle. When in the withdrawn position, the shield avoids interfering with cutting or puncturing blade movements.
|Medical gripping and/or cutting instrument - The invention relates to a medical gripping and/or cutting instrument having a shaft on whose distal end a tool is positioned consisting of at least two jaw members and on whose proximal end a handle is positioned consisting of at least two gripping members. For opening and closing, at least one jaw member of the tool can move by means of a rotatably configured gripping member of the handle with respect to the other jaw member of the tool, and the rotatable gripping member of the handle can be secured by means of a notching mechanism on the at least one other gripping member of the handle, with the jaw members in an at least partly closed position. To produce a medical gripping and/or cutting instrument which allows a simple and rapid unnotching of the gripping members of the handle, it is proposed with the invention that a portion of at least one gripping member of the handle can move with respect to the remaining portion of this gripping member in such a way that the notching mechanism can be released, with the gripping members in an essentially unchanged position with respect to one another.
|MODIFIED TENOTOMY SCISSORS WITH CONJUNCTIVA RISERS - A tenotomy scissors for implantation procedures generally includes a first blade having a handle and a tip with a cutting edge thereon, a second blade having a handle and a tip with a cutting edge thereon, along with a swivel pivotally attaching the first and second blades for enabling insertion of the cutting edges for cutting a pocket in tissue when the handle is operated. One or more risers upstanding from at least one of the blade tips are provided for keeping the pocket open to facilitate insertion of an implant device.
|PATIENT CONFIGURED DEVICE, A KIT AND A METHOD FOR TREATMENT OF DISORDERS IN THE HEART RHYTHM REGULATION SYSTEM - A patient-configured tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The patient configured tissue cutting device may thus advantageously be used for treating disorders to the heart rhythm regulation system of a specific patient. A kit of devices provides a plurality of devices for creating a lesion pattern for treating such disorders, a device, system, and method for determining the shape of said vessel, are also disclosed.
|Micro-Flail Assembly And Method Of Use For The Preparation Of A Nucleus/Vertebral End Cap Of A Spine - The present disclosure provides a micro-flail assembly and associated method of use for the preparation of a nucleus/vertebral end cap of a spine. The micro-flail assembly is utilized in the formation of a nucleus/vertebral end cap between adjacent vertebrae while simultaneously protecting an adjacent annulus with a protective sheath. The protective sheath also acts as a guide while the micro-flail assembly is pivoted to form the end cap. Advantageously, the present invention can be utilized with a variety of surgical procedures including minimally invasive surgery. The formation of the end cap can be done in preparation of providing an insert device (e.g., bone graft, cage, artificial disc, or the like).
|Hand Tool - A hand tool includes a holder and a movable head portion to which a blade body is secured. The movable head portion is supported by the holder in a manner movable relative to the holder between an accommodated state Q, in which the movable head portion is accommodated in the holder together with the blade body, and a projected state, in which the blade body is projected from the holder. The orientation N of the blade body in the accommodated state Q and the orientation N of the blade body in the projected state are different from each other. This improves operation of the blade body both in the accommodated state Q and the projected state and reduces the size of a front opening of the holder to provide a compact holder of the hand tool such as a medical edged tool.
|Surgical Introducer with Indicators - A surgical introducer including a body portion, a shaft and a sensor is disclosed. The body portion includes a reference indicator. The shaft defines a longitudinal axis and is positionable adjacent the body portion. The shaft is rotatable with respect to the body portion and includes a longitudinal indicator and a circumferential indicator. The sensor is disposed in mechanical cooperation with a distal portion of the shaft and is adapted to provide physiological data pertaining to a surgical worksite. At least a portion of the sensor is substantially aligned with the circumferential indicator. Rotation of the shaft with respect to the body portion causes displacement between the circumferential indicator and the reference indicator. Longitudinal movement of the shaft with respect to the body portion causes displacement between the longitudinal indicator and the reference indicator.
|Control For A Powered Surgical Instrument - A surgical instrument is provided for cutting bone and other tissue. The instrument includes a housing. A plurality of sensors are located in the housing in a spaced apart orientation from each other. A collar is moveably mounted to the housing into a plurality of different collar orientations on the housing. A lever comprising an actuator is moveably coupled to the collar and, with the collar located in any one of the plurality of different collar orientations, the lever is operable to move the actuator relative to one of the plurality of sensors in order to vary a signal produced by that sensor.
|TISSUE REMOVAL DEVICE FOR NEUROSURGICAL AND SPINAL SURGERY APPLICATIONS - A tissue cutting device that is especially suited for neurosurgical applications is disclosed and described. The device includes a handpiece and an outer cannula in which a reciprocating inner cannula is disposed. The inner cannula includes a hinge between a body section and a cutting section that allows the cutting section to pivot when the inner cannula reciprocates within the outer cannula. A tissue collector is also provided and is in fluid communication with the lumen of the inner cannula. The inner cannula reciprocates at a rate that is greater than 1000 reciprocations per minute, and variable aspiration may also be provided to the device to control tissue traction and provide fine shaving and debulking.
|Reusable Metal Blade Handle - The present invention relates to a reusable metal blade handle. More particularly, the present invention relates to a reusable metal blade scalpel handle with safety features provided therein which are also usable across a wide range of blades. In particular, the present invention has application for reusable metal surgical scalpels, providing the facility of a uniform handle type across a variety of blade types.
|Chisel System for Osteochondral Implants and A Surgical Procedure Involving Same - A chisel system for harvesting an implantable graft from an area of a human having a cartilage overlying a condyle, according to which a module is provided that has one end connected to a handle. A cutting surface is formed at the other end of the module that cuts through the cartilage and condyle.
|EXPANDABLE ROTATING DEVICE AND METHOD FOR TISSUE ASPIRATION - An apparatus and method for removing tissue and/or other material from a patient includes a shaft and a tissue disrupting mechanism operatively coupled to the shaft. The shaft may be coupled to a handpiece or a robotic or remote-controlled system. The mechanism may comprise a rotatable or other movable element having a distal portion with fixed or adjustable radial dimensions. The mechanism may have one or more tissue cutting, chopping, grinding, emulsifying or disrupting features with an adjustable outer diameter for removing substantial tissues. The apparatus may be configured to urge or draw substantial material into the device upon rotation or other movement of the shaft and/or tissue, and may optionally be coupled to sources of suction or aspiration. A radiofrequency or other energy source is optionally included for tissue ablation or other tissue remodeling effects, and/or to enhance coagulation.
|Button latching system for a trocar - A trocar housing for a trocar assembly includes a first housing member selectively coupled to a second housing member, wherein the first and second housing members include aligned apertures shaped and dimensioned for passage of an instrument therethrough. A button latch mechanism selectively couples the first housing member and the second housing member, the button latch mechanism including a latching member which slides about a central axis of the first and second housing members for selectively coupling the first and second housing members.
|SURGICAL INSTRUMENT HAVING AN ARTICULATED JAW STRUCTURE AND A DETACHABLE KNIFE - A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.
|WIRE-GUIDED SURGICAL INSTRUMENT - Disclosed herein is a surgical instrument having a cylindrical tube affixed thereto. The axis of the cylindrical tube is aligned with a central axis of the surgical instrument so it can be advanced along a guidewire.
|FLUID INJECTION DEVICE - A fluid injection device includes a fluid supply unit that accommodates and supplies fluid, a fluid injection unit that injects fluid supplied from the fluid supply unit, and a driving waveform generating device which is equipped with at least one adjusting device, a one-input multiple-control parameter changing unit that simultaneously changes plural control parameters for determining a fluid injection condition of the fluid injection unit on the basis of a signal from the at least one adjusting device, and a driving waveform generator that generates and outputs a driving waveform of the fluid injection unit on the basis of the control parameters set by the one-input multiple-control parameter changing unit.
|OPERATION SYSTEM - An operation system has a controller controlling a plurality of medical devices and a footswitch, the footswitch having a selection unit capable of selecting a medical device to be used and an output of the medical device; and a first and second pedals capable of instructing the selected medical device to perform the output, and the controller having a memory unit storing output pedal setting information comprising operator identification information, first pedal setting information and second pedal setting information; and a control unit controlling, when the selection unit selects given output pedal setting information and the respective pedals are held down, the respective medical devices on the basis of the first and second pedal setting information in the output pedal setting information.
|VASCULAR INTERVENTION CATHETERS WITH PACING ELECTRODES - Cardioprotective pacing is applied to prevent and/or reduce cardiac injury associated with myocardial infarction (MI) and revascularization procedure. Pacing pulses are generated from a pacemaker and delivered through pacing electrodes incorporated onto percutaneous transluminal vascular intervention (PTVI) devices during the revascularization procedure. Examples of the PTVI devices include a guide catheter, a guide wire, and an angioplasty catheter such as a balloon catheter used in the revascularization procedure. The pacing electrodes are incorporated onto such PTVI devices in various ways.
|APPARATUS AND METHOD FOR ELONGATING A TENDON - An apparatus and method for elongating a tendon including a cutting blade and a cutting guide supporting the cutting blade in such a way that the cutting blade is movable through at least a portion of a tendon in a helical path so as to make a helical cut in the tendon which allows elongation of the tendon.
|Snare mechanism for surgical retrieval - A snare device for capturing an object or for cutting tissue in the body of a human or animal. The device employs at least one twisted loop of memory shaped material housed in and movable relative to a hollow member such as a catheter. The device and method of employment is particularly well adapted for retrieving objects from internal body cavities and cutting tissue therein.
|DEVICE FOR TRANSFECTING CELLS USING SHOCK WAVES GENERATED BY THE IGNITION OF NANOENERGETIC MATERIALS - A miniature device for generating shock waves using the energy of combustion of a nanoenergetic material and directing the shock waves into biological tissues is described.
|APPARATUS AND METHOD FOR DERMAL INCISION - An incision instrument may include a deformable hollow blade that is acted upon by two or more clamping arms that deform the blade into an elliptical cross-sectional shape, thereby enabling the incision instrument to make controlled elliptical incisions.
|GUARDED SURGICAL SCALPEL WITH MEANS FOR MOUNTING A BLADE THEREON (AND SUBSEQUENTLY REMOVING A USED BLADE) AND WITH FURTHER MEANS FOR CLEANING AND STERILIZING THE SCALPEL FOLLOWING A SURGICAL PROCEDURE - A guarded surgical scalpel is provided with manually-manipulatable means carried by the scalpel for, first, securely mounting a surgical blade on the scalpel and, second, subsequently de-mounting the surgical blade off the scalpel, the de-mounting being essentially in a "hands free" environment; that is, it is not necessary to touch the used blade for its removal. Additionally, the scalpel may be quickly disassembled for cleaning and/or sterilization following a surgical procedure in the operating room ("O.R.") of a hospital, clinic or physician's office.
|EXCISION DEVICE AND AIR-BUBBLE DETECTING METHOD - An excision device configured to excise living tissue by ejecting liquid includes: a supplying unit configured to supply liquid to be ejected; a chamber configured to be filled with the supplied liquid; an ejection nozzle connected to the chamber; a drive member configured to be deformed in the direction to reduce the volume of the chamber when a drive voltage is applied more than a case where the drive voltage is not applied; a liquid ejecting unit configured to eject the liquid in the chamber in a pulsed manner from the ejection nozzle by applying the drive voltage to the drive member in a state in which the chamber is filled with the supplied liquid; and an air-bubble detecting unit configured to detect air bubbles in the chamber by detecting an electric current flowing in the drive member when the drive voltage is applied to the drive member.
|SENSOR INSERTER ASSEMBLY HAVING ROTATABLE TRIGGER - An inserter subassembly that is engaged by turning a rotatable trigger to implant the analyte sensor.
|SYSTEMS AND METHODS FOR TREATMENT OF COMPRESSED NERVES - Disclosed herein is a system for releasing a ligament. In one embodiment, the system includes a proximal handle, a tubular body, and a flexible body. The tubular body includes a proximal end and a distal end. The handle is coupled to the proximal end. The flexible body extends through the tubular body and includes a tissue cutting portion. The flexible body is longitudinally displaceable relative to the tubular body to move the tissue cutting portion between a non-deployed state and a deployed state.
|VIRTUAL ULTRASONIC SCISSORS - Apparatus is provided, which includes at least first and second focused ultrasonic transducers, which are arranged facing each other, and a controllable energy source. The energy source is configured to activate the focused ultrasonic transducers to simultaneously generate respective first and second focused ultrasound beams having respective first and second focal zones located in close proximity to each other. Other embodiments are also described.
|Peroperative Sensing Head Adapted to be Coupled to an Ablation Tool - The invention concerns a preoperative probe (
|Medical sheath for scalpel handle with retractable blade guard - A scalpel device has a metal shank having a blade carrier configured holding a scalpel blade. A sheath is configured for receiving the scalpel shank. The shank is rigidly coupled to the sheath. A retractable blade guard is movably coupled to the sheath. The blade guard is movable between retracted and extended positions wherein the scalpel blade is selectively covered or exposed.
|MEDICAL DEVICE ASSEMBLY HAVING FREEDOM OF ROTATION - An electrical medical device assembly that includes a handheld unit, adapted to be manipulated by a medical professional and requiring multi-conductor electrical connection to a base unit; a base unit adapted to provide electrical power to the handheld unit; a multi-conductor electrical cable connecting the handheld unit to the base unit; and a multi-conductor electrical connector interposed between the handheld unit and the base unit, the connector including a first half and a second half and wherein relative rotation is permitted between the first half and the second half.
|Retractable safety knife - A retractable safety knife has a hollow handle with an opening at an end thereof, a pusher that is movably disposed within the handle and is operable by a user, and a blade that is connected with an end of the pusher. When the pusher moves from a blade-retracted position to a blade-extended position, the blade extends outwardly from the handle opening and rotates from a nested position to an extended position.
|MICRO SURGICAL KNIFE WITH SAFETY FEATURE - A surgical knife safety handle device comprises a handle body being essentially solid and has at least one formation on the outside of the body. There is a knife holder at the distal end of the handle body. A movable guard engages with the formation for longitudinal movement between an extended position and a retracted position with respect to the handle body. The guard has a proximal end and a distal end for at least partially enclosing a knife blade attachable to the knife holder, and the guard is slidably mounted with the formation. The device permits for one handed operation. The mode of operation is apparent and an intuitive push/pull to extend or retract guard. The guard is formed of a clear material with a low profile that does not interfere with vision in use, and thus reduces shadowing in the operative field.
|SURGICAL SCALPEL AND SYSTEM PARTICULARLY FOR USE IN A TRANSVERSE CARPAL LIGAMENT SURGICAL PROCEDURE - A surgical scalpel, scalpel instrument and/or scalpel system (collectively, scalpel), is configured for use in a transverse carpal ligament surgical procedure. The scalpel evaluates an incision path with respect to a nerve in the incision path, and performs the incision if appropriate. The scalpel emits a signal through a potential incision path through tissue captured by the scalpel. The scalpel utilizes the emitted signal to determine whether a nerve is in the incision path. The surgical instrument includes a retractable blade. Evaluation includes determining whether a nerve is present before incision and/or evaluating whether the target tissue has been appropriately captured. A warning is provided when a nerve is in the incision path and/or the captured target tissue is inappropriate. The surgical instrument disables extension of the blade when a nerve is in the dissection path and/or the captured target tissue is inappropriate.
|GUARDED SURGICAL KNIFE HANDLE - A guarded surgical knife handle includes a lower handle portion, an upper handle postion, and a button. The lower handle portion includes a blade holder, a proximal pair of lateral shelves, and a distal pair of lateral shelves. The upper handle portion includes a guard portion, a proximal post between the proximal pair of shelves with a first widened post portion wider than the lateral spacing between the shelves, and a distal post between the distal pair of shelves with a second widened post portion wider than the lateral spacing between the shelves. The button has a button waist narrower than the second lateral spacing and a widened button portion below the button waist wider than the second lateral spacing. A bias member connected to the button and at least one of the handle portions provides an upward force on the button.
|Low Profile Cutting Assembly with a Return Spring - The present disclosure relates to a forceps that includes a housing, a cutting assembly, and an actuator. The housing has a shaft attached thereto that extends therefrom and is configured to support a pair of jaw members at a distal end thereof. The jaw members are movable to grasp tissue therebetween. The cutting assembly includes a spring element that has proximal and distal ends. The proximal end of the spring element is fixed to a boss disposed within the housing and the distal end of the spring element includes a cutting edge. The spring element is coiled at a proximal end thereof to create a spring bias against the boss. The actuator is operably coupled to the spring element and is configured to selectively advance the cutting edge of the spring element into the jaw members against the spring bias to sever tissue disposed therebetween.
|SURGICAL INSTRUMENT - The invention is to offer a surgical instrument, where the pressure-opposing force and bending characteristics of the spring parts can be easily adjusted and the manipulability is improved. This surgical instrument comprises functional parts
|TRANSAPICAL VALVE REPLACEMENT - Techniques for reaching the interior of the heart, such as for aortic valve replacement, can combine elements of percutaneous implantation methods and elements of surgical implantation methods. In some instances, aortic valve replacement may include a dual transapical approach in which a transfemoral approach is used to reach the apex of the patient's heart from inside the left ventricle while a minimally invasive surgical procedure provides access to the exterior of the apex via an intercostal approach.
|HANDHELD DEVICE WITH THERMAL PADDING - A handheld device comprises a housing, a motor, and a thermally conductive pad disposed in a space between the motor and the housing. Heat generated by the motor can be conducted by the thermal pad to the housing or to an internal fluid passage generally extending the length of the motor. In some embodiments, the thermal pad is configured to maintain the temperature of the housing in accordance with industry guidelines.
|SURGICAL INSTRUMENT AND METHOD OF USE FOR RELEASING SOFT TISSUE - A surgical instrument for use in releasing soft tissue within the human body. The surgical instrument has a handle with proximal and distal ends with a tube connected to the distal end. The surgical instrument also includes a blade member that slidingly engages the tube moving along the length of the tube to cut soft tissue. Further included in the surgical instrument is a guard member that is attached to the blade member. The guard member has a hood portion and a capture portion. The hood portion is connected to the blade member with the distally positioned capture portion acting to displace surrounding tissue while capturing certain soft tissue structures resulting in the blade member being in operative position to cut and release the soft tissue. A surgical instrument kit including a plurality of modular surgical instruments and method for releasing soft tissue using the surgical instrument are also disclosed.
|Blade Strage Case - The invention provides a blade storage case which enables a blade to be attached to a holder body without touching the blade with the blade accommodated in the case, is safe and enables bacteria and the like to be prevented from adhering.
|LANCET DEVICE WITH COMBINED TRIGGER AND COCKING MECHANISM AND METHOD - Lancet device including a skin engaging end that includes a lancet opening through which a lancet needle may extend, a movably mounted holding member configured to receive a lancet, and a combined triggering and cocking system structured and arranged to move the holding member to a retracted position during a cocking phase and to cause the holding member to move to an extended position during a triggering phase. A method of puncturing a surface of skin using the lancet device includes disposing the skin engaging end against a user's skin and manually activating the combined triggering and cocking system. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
|Method For Constructing An Instrument With A Two-Part Plunger For Subcutaneous Implantation - A method for constructing an instrument with a two-part plunger for subcutaneous implantation is provided. An incising body is formed by defining a non-circular coaxial bore and sharpening a distal bottom edge. A two-part plunger including a tongue blade assembly and a plunger assembly is constructed. The tongue blade assembly is constructed by sharpening a beveled end of a flat thin tongue blade and by affixing a straight tongue blade shaft to an end of the tongue blade opposite the beveled end. The tongue blade assembly has a length exceeding the coaxial bore. The plunger assembly is constructed by affixing a plunger to a plunger shaft on a distal end. The plunger assembly has a length exceeding the coaxial bore and is oriented adjacent to the tongue blade assembly. The two-part plunger is inserted through an end of the incising body.
|FLUID EJECTION DEVICE AND METHOD OF CONTROLLING FLUID EJECTION DEVICE - A fluid ejection device includes: a fluid chamber; a volume varying unit configured to vary the volume of the fluid chamber; a fluid supplying unit configured to supply fluid to the fluid chamber at a predetermined pressure; and an ejection command switching unit configured to switch a fluid ejection between a pulsed flow ejection which ejects the fluid in a pulsed manner by activating the volume varying unit and varying the volume of the fluid chamber and a continuous flow ejection which ejects the fluid with a fluid supply pressure from the fluid supplying unit higher than that in the case of the pulsed flow ejection in a state in which the volume varying unit is stopped.
|SAFETY SCALPEL - The present invention provides an independent activation mechanism on both sides of a plastic sheath of a safety scalpel. Activation of either one of the mechanisms on the sides will cause the sheath to slide back along the handle neck and lock in place at the locking port thereby exposing the blade for use. The activation mechanisms are thumb activated on the side of the sheath, which results in a more natural motion as well as keeping other fingers out of the way of the unsheathed blade. After use, pushing forward with the thumb on either of the activation mechanisms on the sides of the plastic sheath will cause the sheath to slide forward and lock in place. Placement of the activation mechanisms on the sides of the sheath enable the top of the sheath to be flat and smooth which provides a comfortable surface for the practitioner.
|Instrument With A Covered Bore For Subcutaneous Implantation - An instrument with a covered bore for subcutaneous implantation is provided. An incising body defines a non-circular coaxial bore and includes a sharpened cutting edge that extends from a bottom distal end beyond the opening of the coaxial bore and an attachment point at a top distal end. A plunger is non-fixedly contained within the coaxial bore and slides longitudinally therein. A cover is pivotally attached at the attachment point and extends down to the bottom distal end and, when closed, the cover encloses the opening proximal to the cutting edge.
|Instrument With A Two-Part Plunger For Subcutaneous Implantation - An instrument with a two-part plunger for subcutaneous implantation is provided. An incising body defines a non-circular coaxial bore and includes a cutting edge formed on a distal end. A two-part plunger is non-fixedly contained within the coaxial bore and includes a tongue blade assembly and a plunger assembly. The tongue blade assembly is provided on a bottom surface of the coaxial bore and includes a tongue blade shaft and a thin tongue blade with a sharpened clearing edge on a distal end. The tongue blade assembly has a length exceeding the coaxial bore. The plunger assembly has a length exceeding the coaxial bore and includes a plunger shaft and a plunger affixed on a distal end. The plunger is slidably positioned on a top surface of the tongue blade.
|DEVICES, METHODS AND SYSTEMS FOR NEURAL LOCALIZATION - Described herein are tissue manipulation devices having a tight bipole network. In particular, described herein are smart tools such as rongeurs configured to sense the presence of a nerve or portion of nerve. Tissue may be cut (or otherwise manipulated) by using a tool having a tight bipolar network to sense when a nerve or portion of a nerve is in the tool prior to cutting.
|DEBRIDEMENT CUTTING HEADS, METHODS, AND SYSTEMS EMPLOYING REDUCED PRESSURE - Apparatuses, systems, and methods involve using reduced pressure to position a portion of tissue in a cutting head and cutting the tissue to debride a tissue site. A cutting head includes a debridement conduit having a distal end and a proximal end. A portion of the debridement conduit adjacent to the distal end comprises a tissue treatment area. The cutting head also includes an opening to the tissue treatment area formed at the distal end of the debridement conduit. The tissue treatment area is adapted to receive the portion of tissue through the opening under reduced pressure. The cutting head also includes a selectively moveable cutting member associated with the debridement conduit at the tissue treatment area. The cutting member is for cutting the portion of tissue from the tissue site while the portion of tissue resides in the debridement conduit. Other methods, systems, and apparatuses are disclosed.
|SURGICAL INTERVENTION DEVICE COMPRISING AN INSTRUMENT LIKELY TO DEFORM - The disclosure relates to a surgical intervention device, including a surgical instrument capable of passing through human or animal tissue and a system comprising so-called "passive" components capable of measuring deformation or a local strain of the instrument and/or so-called "active" components capable of imposing a local strain on the instrument, the system comprising at least two series of passive components arranged at the surface of the instrument so as to establish a biunivocal relation between the position of the instrument or the position of the distal end of the instrument and all the data originating from the series, and, where required, at least two series of active components arranged at the surface of the instrument. The disclosure also relates to a process for determining the position of the distal end of a surgical instrument capable of passing through human or animal tissue.
|LIQUID JET SURGICAL INSTRUMENT - The invention provides a variety of surgical instruments for forming a liquid jet, which are useful for performing a wide variety of surgical procedures. In some embodiments, the invention provides surgical liquid jet instruments having a pressure tube and an evacuation tube, where the pressure tube includes at least one nozzle for forming a liquid jet and where the evacuation tube includes a jet-receiving opening for receiving the liquid jet when the instrument is in operation. In some embodiments, the surgical liquid jet instrument is constructed to minimize damage to the tissue surrounding the tissue that is desired to be removed. In some embodiments, the outer surface of the distal tip of the evacuation tube wall and/or the pressure tube wall is blunted to minimize tissue damage. The invention also provides surgical methods utilizing the inventive surgical liquid jet instruments for cutting or ablating a selected tissue within portions of a patient's spine, such as within the intervertebral disc.
|FLUID EJECTION DEVICE, FLUID EJECTION METHOD AND FLUID EJECTION SURGICAL INSTRUMENT - A fluid ejection device includes: a fluid chamber into which fluid flows; a volume varying unit that varies the volume of the fluid chamber; an inlet fluid channel and an outlet fluid channel intercommunicating with the fluid chamber; a fluid ejection port that ejects fluid flowing out from the outlet fluid channel; a fluid supply unit that supplies fluid into the inlet fluid channel; a controller that controls the variation of the volume of the fluid chamber by the volume varying unit; and a color detector that detects color of a fluid ejection target area facing the fluid ejection port, wherein the controller controls the variation of the volume of the fluid chamber by the volume varying unit in accordance with the color detected by the color detecting unit.
|SYSTEMS AND METHODS FOR SURGICAL REMOVAL OF BRAIN TUMORS - A method for treating a brain tumor includes providing a surgical instrument having an inner member and an outer member. The outer member has a distal region forming a cutting window. The inner member is rotatably received within the outer member, and has a cutting tip that is exposed at the window. The cutting tip and the distal region of the outer member combine to define a cutting implement. An opening is created through the patient's skull to provide access to a brain tumor target site. The cutting implement is delivered through the opening to the target site. The cutting tip is placed into contact with the tumor and operated to cut the tumor. The target site is selectively aspirated to remove cut tumor tissue.
|WASTE CONTROL APPARATUS - Liquid jet surgical cutting apparatus (
|System and Method for Treating Connective Tissue - A method and system of treating connective tissue to increase flexibility of the connective tissue or decrease tension in the connective tissue includes forming perforations in the connective tissue to at least 90% of the depth or thickness of the connective tissue and maintaining the perforations in the connective tissue. The method alters the tissue to enhance the . fundamental mechanisms involved the immunology, biochemistry, and molecular genetics of the metabolism of the connective tissue.
|SURGICAL KNIFE, BLADE FOR SURGICAL KNIFE, AND METHOD OF MANUFACTURING THE SAME, AND HANDLE FOR SURGICAL KNIFE - The blade of a surgical knife of the present invention is formed by subjecting a single-crystal silicon wafer in which the orientation of the polished surface is <110> or <100> to crystal anisotropic etching. The blade has an edge as a higher-order surface of crystal anisotropic etching, and the edge slopes at a sharp angle in relation to the polished surface. Therefore, the surgical knife of the present invention which is made of single-crystal silicon, has good sharpness, reduces variability in sharpness quality, has high productivity at low cost, and is practical.
|Tunnel Tool for Soft Tissue
|Safety Scalpel with Blade Retention - A surgical scalpel is presented which combines the attributes of cost-effectiveness in design and safety of single use scalpel devices and the ability to be autoclavable so as to promote the device as a multiple use device as well. The design of the device is such as to afford medical personnel the feel, weight and balance of the original metal unguarded scalpel, while maintaining safety through the shielding of the blade during non-use and the ability to dispose of the blade in a safe controlled manner. The user is able to remove the blade through the biasing action of a living hinge and have it securely attached to the shield of the device for later discharge into a sharps container, all without having to place ones hands near the unguarded sharp. The device to designed to use existing styles of blades currently available without needing costly inventories of specially created blades. This device is presented in several embodiments containing similar attributes for safety and discharge of the blade.
|Systems and methods for closing of fascia - An opening in a fascia is closed by inserting a cannula through the fascia, and attaching a tissue anchor to the fascia from the exterior or through a side of the cannula.
|Surgical cutter with dispensing system for tissue sealants - The present invention discloses a medical device comprising a dispenser adapted to dispense a tissue sealant or one or more precursor compounds, the dispenser being operably coupled to a surgical stapler, which in turn is configured to deliver one or more surgical staples or fasteners in an area of bodily tissue approximation surface. Furthermore, the medical device comprises a dispenser adapted to dispense a tissue sealant or one or more precursor compounds thereof, the dispenser being operably coupled to a surgical cutter. Additionally or alternatively the medical; device can include an actuation mechanism, whereby the dispenser dispenses the tissue sealant or one or more precursor compounds at a surgical cutting site or in a proximity thereof.
|SCALPEL HANDLE - The present invention relates to a contoured scalpel handle. The contoured shape of the handle provides for increased contact area with the user's hand using a larger diameter central portion and a smaller diameter trough. The generally circular cross-section allows rotation of the angle of the blade relative to the tissue without the need to change the grip on the handle. The contoured handle can be used as an adapter sleeve in which a scalpel handle can be inserted or can include a blade mounting element on which a blade is directly mounted.
|HIGH SPEED PNEUMATIC VITRECTOMY CONTROL - A method and system for controlling the cutting speed of a cutting device employable in an ocular surgical procedure is provided. The apparatus includes a control module, a variable gas pressure regulator arrangement configured to receive gas from a gas pressure supply, wherein the variable pressure regulator arrangement is connected to the control module and the control module is configured to regulate gas received from the gas pressure supply, and an accumulator configured to store gas received from the variable gas regulator arrangement at a selected gas pressure. Gas at the desired pressure is delivered from the accumulator to the cutting device. The gas may be air, and the variable gas pressure arrangement may include a single variable pressure regulator or multiple pressure regulators which typically are not variable with respect to the pressure delivered.
|APPARATUS AND METHOD TO PROVIDE EMERGENCY ACCESS TO BONE MARROW - An apparatus and method for penetrating the bone marrow is provided. The apparatus includes a housing, a penetrator assembly, operable to penetrate the bone marrow, a connector operable to releasably attach the penetrator assembly to a drill shaft, the drill shaft operable to connect the penetrator assembly to a gear assembly, a gear assembly operable to engage and rotate the drill shaft, a motor operable to engage the reduction gear assembly and drive the penetrator into the bone marrow by rotation of the drill shaft, and a power supply and associated circuitry operable to power the motor. The apparatus and method may be adapted to insert a probe through the skull and into the brain.
|LIQUID INJECTION DEVICE AND SURGICAL INSTRUMENT INCLUDING LIQUID INJECTION DEVICE - Liquid to be injected from an injection nozzle is supplied through a liquid supply channel toward the injection nozzle. Negative pressure for sucking the liquid injected from the injection nozzle through a suction port is produced by a suction unit and guided through a suction channel toward the suction port. A bypass channel which bypasses the liquid supply channel on the upstream side with respect to the injection nozzle and connects with the suction channel is provided. The bypass channel is opened and closed by an opening and closing unit. According to this structure, flow of unnecessary liquid from the injection nozzle can be reduced by opening the opening and closing unit while injection of liquid is stopping.
|Surgical knife safety handle having user operable lock - A surgical knife safety device having a handle, a blade connected to the handle, and a guard carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. In the retracted position, an enlarged guard radius is provided at the distal end of the handle to allow improved handle control and blade orientation. The enlarged guard radius is positioned to allow the user to firmly grip a large distal handle portion which is preferably molded as a single piece with the blade holder, preventing unwanted blade or handle movement due to guard mechanism tolerances. A spring, such as leaf spring or a cantilever beam, and a pair of detents or slots are provided to fix the guard in the extended or retracted position and to provide resistance during movement between the two positions.
|WATER JET SURGICAL INSTRUMENT - Water jet surgical instruments comprising a feed line for supplying fluid in one flow direction and one exit nozzle for ejecting the fluid in the form of a fine jet displaying a defined geometric opening configuration are known. In order to be able to widen the jet it is a fluid chamber is provided—viewed in the direction of flow—upstream of the exit nozzle. A disturbance device is provided in or on the fluid chamber, said disturbance device being able to generate a turbulent flow inside the fluid chamber.
|METHOD AND APPARATUS FOR ENDOSCOPIC LIGAMENT RELEASE - The invention pertains to a method, apparatus, and system for cutting anatomic members, such as ligaments, in surgical procedures such as carpal tunnel release, plantar fasciotomy, gastroc release, cubital tunnel release, and tarsal tunnel release. The apparatus includes a retrograde knife and a guide tool for guiding the knife and a scope during surgery. Relevant features include a knife stop for preventing the knife from inadvertently raising out of the knife channel, indicators showing the proper orientation for the guide tool, a self dilating tip and channel design on the guide tool, a cover piece and/or pivotable panel system for preventing ligaments and other anatomy from getting caught in the guide tool, a pivot pin and groove system for stabilizing the knife and also assuring that the knife blade is not inadvertently raised out of the channel, and a use indicator for preventing re-use of a single use device.
|Surgical knife safety handle - A surgical knife safety device having a handle, a blade connected to the handle, and a guard carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. In the retracted position, an enlarged guard radius is provided at the distal end of the handle to allow improved handle control and blade orientation. The enlarged guard radius is positioned to allow the user to firmly grip a large distal handle portion which is preferably molded as a single piece with the blade holder, preventing unwanted blade or handle movement due to guard mechanism tolerances.
|Safety Knife With Curved Guard - A safety knife for ophthalmic surgical procedures has handle to which a blade holder is attached at one end, holding a pre-installed surgical blade. A blade guard is extended and retracted responsive to the movement of an actuator button on the handle. The blade assumes a curved shape as it is extended, to shape itself about and protect the blade. When the guard is retracted it straightens to allow it to slide into the handle, exposing the blade for use.
|Full Thickness Resection Device - An operating head for a full thickness resection system includes a first optical device disposed on a distal portion thereof and having a viewing area extending distally of the distal portion and a working chamber extending within an exterior wall of the operating head, a first portion of the exterior wall being moveable with respect to a second portion thereof to selectively open the working chamber to an exterior of the operating head. Furthermore, the operating head includes a second optical device mounted within the working chamber with a viewing area of the second optical device extending distally therefrom.
|SELECTABLE STROKE CUTTER - Apparatus, systems, and devices are described that utilize an adjustable biological tissue cutting handpiece that is based on selectable settings. The biological tissue cutting handpiece includes a cutter tip that allows multiple duty cycles as well as multiple port configurations. For example, when working next to the retina, the port could be adjusted to be a smaller size, allowing delicate membrane dissection. When working near or in less sensitive tissue, e.g. the center of the eye, the port could be wide open. The port aperture size can be independent of cut speed, allowing a surgeon to work at high speed both next to the retina and away from the retina. High speeds have been shown to have increased tissue (e.g., vitreous) removal, e.g., in 25 and 23-gauge instruments. Duty cycle is not necessarily dependent on cut speed, allowing high cutter performance and varied flow characteristics.
|PROCEDURAL CANNULA AND SUPPORT SYSTEM FOR SURGICAL PROCEDURES - A system for performing minimally invasive medical procedures includes an elongate support advanceable into a body cavity. The elongate support supports a frame that carries a pair of tool cannulas, each of which has a lumen for receiving a tool useable to perform a procedure in the body cavity. The frame is expandable to orient the tool cannulas such that they allow the tools to be used in concert to carry out a procedure at a common location in the body cavity.
|TWO-PART SURGICAL DEVICE - A scalpel for performing complex surgeries, such as c-sections, is formed of a body that is preferably elongated and shaped and sized to fit ergonomically into the hands of surgeons. The body has surfaces that are joined to each other by smooth transition elements to insure that the body has no points or sharp edges that could cut or scratch the surgeon or the patient. The body is formed with a triangular notch formed of a beak and an extension. A surgical blade, preferably a standard off-the-shelf surgical blade, is imbedded in the body and the only portion of the blade that is accessible is a portion of its cutting edge spanning the notch. The scalpel is used by introducing the beak into a slit in the tissue with the blade portion facing the direction in which the cut is to be made. The body of the scalpel is then grasped firmly and advanced to make the cut. The initial incision can be made with the tip of the beak. In one embodiment, the body is molded around the blade. in another embodiment, the body is made of two parts that are welded together.
|Modular Scalpel with Retractable Blade - A scalpel (
|MICRO SURGICAL CUTTING INSTRUMENTS - The present invention relates to methods and apparatus for micro surgical blades, knives and assemblies.
|Control for a Powered Surgical Instrument - A surgical instrument is provided for cutting bone and other tissue. The instrument includes a housing. A plurality of sensors is located in the housing in a spaced apart orientation from each other. A collar is moveably mounted to the housing into a plurality of different collar orientations on the housing. A lever comprising an actuator is moveably coupled to the collar and, with the collar located in any one of the plurality of different collar orientations, the lever is operable to move the actuator relative to one of the plurality of sensors in order to vary a signal produced by that sensor.
|SURGICAL SAFETY SCALPEL - A surgical safety scalpel comprising a blade, fixed at one end to an extended nose on a handle, covered with a sheath longitudinally slidably and inseparably mounted on said handle, said sheath comprising an elongated housing comprising an upper surface, a lower surface and two side surfaces connecting the upper and lower surfaces together, an aperture through said lower surface and a handle with a first button mounted on surface of said handle and aligned opposite to the said first button a second button wherein the said aperture on the sheath engages with the first button and second button in the blocking position of covering the said blade and wherein a base of the said sheath engages with a third button near the proximal end of tail of the said handle preventing the said sheath to slide of the handle when the sheath is in ready position and wherein the said second button also engages the said sheath from sliding over the said blade its exposed state and during use.
|Low Profile Cutting Assembly with a Return Spring - The present disclosure relates to a forceps that includes a housing, a cutting assembly, and an actuator. The housing has a shaft attached thereto that extends therefrom and is configured to support a pair of jaw members at a distal end thereof. The jaw members are movable to grasp tissue therebetween. The cutting assembly includes a spring element that has proximal and distal ends. The proximal end of the spring element is fixed to a boss disposed within the housing and the distal end of the spring element includes a cutting edge. The spring element is coiled at a proximal end thereof to create a spring bias against the boss. The actuator is operably coupled to the spring element and is configured to selectively advance the cutting edge of the spring element into the jaw members against the spring bias to sever tissue disposed therebetween.
|MEDICAL/SURGICAL POWERED HANDPIECE FOR ROTATING THE SHAFT OF A ACCESSORY, THE HANDPIECE HAVING A COUPLING ASSEMBLY THAT FACILITATES THE FINE OR COARSE ADJUSTMENT OF THE EXTENSION OF THE ACCESSORY SHAFT - A surgical tool system including a handpiece with a motor and a cutting accessory with a shaft that is rotated by the handpiece motor. The handpiece includes a coupling assembly with plural locking elements for holding the accessory shaft to an output drive shaft that is actuated by the handpiece motor. The locking elements are longitudinally spaced apart from each other. The accessory shaft is formed with retention features against which the handpiece locking elements engage. The shaft retention features are in columns. The retention features in adjacent retention features are longitudinally offset from each other. This allows the coarse or fine adjustment of the extent to which the accessory shaft extends forward from the handpiece coupling assembly.
|SURGICAL DEVICE - A surgical device includes a first jaw and a second jaw moveable relative to the first jaw between a first position, in which the first and second jaws are aligned within a plane, and a second position, in which the second jaw is in non-parallel correspondence to the plane. The surgical device may include a surgical member, e.g., a cutting and/or stapling element, disposed within the first jaw, and a second driver configured to cause relative movement of the surgical member in a direction parallel to the plane. The first and second jaws may include a camming arrangement that is configured to move the second jaw between the first and second positions. The camming arrangement may include a channel disposed along at least a portion of one or both of the first and second jaws, a ball bearing disposed within the channel.
|MICRO SURGICAL KNIFE WITH SAFETY FEATURE - A surgical knife safety handle device comprises a handle body being essentially solid. A movable guard engages with the body for longitudinal movement between an extended position and a retracted position. The guard encloses a knife blade. The operation is an intuitive push/pull to extend or retract guard. The guard is formed of a clear material with a low profile that does not interfere with vision in use. The guard includes a leaf spring. The spring has a hemispherical protrusion on its underside that engages with a slot on the handle for positive engagement and an audible "click" when it seats.
|Methods And Devices For Creating Electrical Block At Specific Targeted Sites In Cardiac Tissue - The present invention provides a mechanical injury device having cutting elements for injuring tissue and thereby creating electrical block that can prevent atrial fibrillation. These cutting elements may preferably be removable, breakaway, or simply integral to the injury device and may be delivered, for example, by catheter or hand tool.
|MEDICAL CUTTING INSTRUMENT FOR SEVERING MUSCLES AND TENDONS - A medical cutting instrument for cutting muscles and tendons, with an instrument body that includes a handle on its proximal end and at least one cutting knife in the area of its distal end. To provide a medical cutting instrument that guarantees ease of handling and simple structure along with secure cutting of the muscle/tendon tissue, the instrument body should be of grooved configuration in the area of its cutting knife in such a way that the instrument body includes a hollow space extending in the longitudinal direction of the instrument body to receive and guide the muscle/tendon tissue that is to be cut, such that the instrument body includes an opening extending in the longitudinal direction of the instrument body and the cutting knife constitutes a side of the instrument body.
|Surgical Blade - A surgical blade adapted to be typically used in medical procedures is disclosed. The blade is provided with markings located near the cutting edge. The markings are configured to be indicative of the depth of the blade and/or of the cutting edge during the incision of an organic tissue. The markings are configured to substantially follow the shape of the cutting edge such as to indicate the depth of the blade substantially independently of the orientation thereof.
|MEDICAL PUMP - A medical pump for use in water jet surgery which provides ease of connection between a pump unit and a pump actuating device. The medical pump includes a pump unit and a pump actuating device. The pump unit has at least one piston. The pump actuating device includes a holding device and at least one coupling device, the combination of which is configured to connect the pump unit and pistons to the pump actuating device. The pump actuating device includes a drive device controlled by a control system to actuate the pump unit, to open/close the holding device, and to open/close the at least one coupling device. The pump actuating device includes a detection device in communication with the control system that detects a relative position between the pump unit and the pump actuating device and transmits detection signals to the control system.
|Delivery Tools for Sleep Disorders Treatment Implant and Methods of Implantation - Methods and tools are disclosed for inserting an implant device that treats snoring and apnea of a patient by altering the position of a soft palate. Methods and tools can make an incision in patient's soft and hard palate to create a cavity that can house the implant. The tools can have visually observable markings that can be aligned with the incision, thus controlling the depth of the cavity. A needle having an incision edge can be used to make an incision in patient's soft palate. The needle can be bent into a suitable longitudinal shape to allow easier access and visualization of the process. A blade that makes the cavity in the tissue can be housed inside a channel in the needle. The tools may have stoppers to prevent excessive extension and retraction of the blade thus preventing an excessive cavity depth. Some tools may also house the implant device, which may be implanted after the cavity is formed.
|DEVICE AND METHOD FOR CONTROLLING COMPRESSION OF TISSUE - A method and device for controlling the compression of tissue include clamping tissue between a first clamping member and a second clamping member by driving at least one of the clamping members with an electric motor toward a predetermined tissue gap between the clamping members and, during the clamping, monitoring a parameter of the electric motor indicative of a clamping force exerted to the tissue by the clamping members. The method and device include, during the clamping, controlling the electric motor, based on the monitored parameter, to limit the clamping force to a predetermined maximum limit.
|SURGICAL INSTRUMENT - A surgical instrument includes: a fluid chamber to which fluid is supplied; a pulsation generator which produces pulsed flow by pressurizing the fluid supplied to the fluid chamber; an outlet channel which communicates with the fluid chamber through which the pulsed flow is transmitted; a fluid ejection opening which communicates with the outlet channel through which pulse flow is ejected toward an ejection target; a suction opening provided in the vicinity of the fluid ejection opening; and a fluid suctioning unit which suctions the fluid through the suction opening, wherein the opening area at an outlet opening end of the fluid ejection opening on the side near the ejection target is larger than the opening area at an inlet opening end of the fluid ejection opening on the side near the outlet channel.
|SAFETY SUTURE CUTTING DEVICE HAVING A PLURALITY OF CUTTING SLOTS AND RELATED METHODS - A sheath for use with a scalpel cutting device including a sheath body configured to cover a scalpel blade at a distal end of a scalpel cutting device. The sheath advantageously may include a plurality of slots formed therein. Providing two or more slots provides additional functionality and/or ease of manufacturing. A single sheath configuration including a plurality of slots (e.g., two) may be manufactured so as to be used with scalpels including somewhat different blade configurations (e.g., which may require a slightly different slot location). Such a universal sheath allows a single sheath design to be used with multiple scalpels, easing manufacture and reducing costs. In addition, depending on the particular location of the slots and the configuration of the scalpel blade, the different slots may each intersect the scalpel blade and provide different characteristics for cutting a suture.
|Cutting blade storage apparatus - A scalpel blade storage device, including a cover having a first lever arm and a second lever arm defined therein and further including a base. The base has a face defining a blade pocket therein having a distal portion adapted to receive a blade portion of a surgical scalpel blade and a proximal portion adapted to receive a shank portion of a surgical scalpel blade. The base is disposed adjacent to the cover, with the face in which the blade pocket is defined facing said cover. A plurality of arms is fixed to one of the base and the cover. The arms envelop at least a portion of the other of the base and the cover to retain the base and the cover in a sliding relationship. The cover is movable between a first closed position in which the blade pocket is completely covered by the cover, and a second open position in which the blade pocket is at least partially uncovered. The invention further includes methods of withdrawing a scalpel blade to the storage device and mounting it on a scalpel handle, and for demounting the scalpel blade and returning it to the storage.
|SURGICAL DEVICE USING WATER JET AND METHOD FOR OPERATING SAID DEVICE - A water jet surgical device comprises a fluid feed device, which is controllable by control signals from a control device, for delivering a fluid into a connecting line of a surgical instrument with an outlet nozzle. The fluid feed device includes at least one measuring device, which is configured such that following the connection of the surgical instrument to the fluid feed device, the measuring device generates measuring signals to represent a quantity of fluid delivered. The quantity of fluid delivered may be displayed on a display or recorded in a recording unit. This enables improved monitoring of surgical operations.
|Safety Scalpel - A scalpel enabling both safe blade engagement or disengagement and safe passing among personnel during surgical procedures. The blade arm assembly of the scalpel is positionable in three positions, including a retracted position, an operational extended position and a fully extended position for engagement and disengagement of the blade.
|SURGICAL CUTLERY AND MANUFACTURING METHOD THEREOF - A surgical cutlery and a manufacturing method thereof, which prevent over-etching and reduce pierce resistance, are provided. The manufacturing method of the surgical cutlery made of a round bar material
|Implant Method - The present invention relates to a method of inserting an implant in a bone. In the bone, a thin slit is formed by a cutting tool in a mesiodistal direction around an insertion spot of the implant. The thin slit is cut and widened by a bone chisel. Into the implant insertion spot, a tool for forming cavity provided with a needle portion is squeezed while being rotated, and a cavity is formed. In the formed cavity and the slit, blood of a patient is collected, by which a tissue is rapidly regenerated and bonded to the inserted implant, and the implant is firmly fixed to the bone.
|LIQUID INJECTION DEVICE - A liquid injection device includes: a chamber which supply of the liquid and connects with the injection nozzle; a chamber volume varying unit to which driving voltage is applied to reduce the volume of the chamber to a volume smaller than the volume of the chamber before the driving voltage is applied; a driving voltage applying unit which applies the driving voltage to the chamber volume varying unit with the liquid supplied to the chamber; a pseudo noise data memory unit which stores sound data of pseudo noise having audible frequency components contained in driving noise generated when the driving voltage is applied to the chamber volume varying unit; and a pseudo noise outputting unit which outputs the pseudo noise by using the sound data of the pseudo noise such that the sound pressure of the driving noise decreases within the audible frequency range when the driving voltage is applied.
|SURGICAL DEVICE - A surgical device includes a first jaw and a second jaw disposed in opposed correspondence with the first jaw. The second jaw is mechanically coupled to the first jaw at a proximal end opposite a distal end. A cutting element is disposed within the second jaw, and a first driver is configured to move the cutting element proximally from the distal end toward the proximal end of the second jaw to cut a section of tissue disposed between the first and second jaws. The device may also include a stapling element disposed within the second jaw. The cutting element and the stapling element may be contiguous so as to define a cutting and stapling element, such as a wedge having a blade disposed thereon. As the wedge is moved proximally from the distal end of the second jaw to the proximal end, the wedge pushes a plurality of staples against a plurality of opposing staple guides disposed in the first jaw in order to staple a section of tissue while cutting the section of tissue.
|DEVICE FOR PERFORMING SURGERY - A scalpel for performing complex surgeries, such as c-sections, is formed of a body that is preferably elongated and shaped and sized to fit ergonomically into the hands of surgeons. The body has surfaces that are joined to each other by smooth transition elements to insure that the body has no points or sharp edges that could cut or scratch the surgeon or the patient. The body is formed with a triangular notch formed of a beak and an extension. A surgical blade, preferably a standard off-the-shelf surgical blade, is imbedded in the body and the only portion of the blade that is accessible is a portion of its cutting edge spanning the notch. The scalpel is used by introducing the beak into a slit in the tissue with the blade portion facing the direction in which the cut is to be made. The body of the scalpel is then grasped firmly and advanced to make the cut. The initial incision can be made with the tip of the beak. In one embodiment, the body is molded around the blade. In another embodiment, the body is made of two parts that are welded together.
|FLUID EJECTION DEVICE AND MEDICAL INSTRUMENT - A fluid ejection device includes a pulsation generator which converts a fluid into a pulsed fluid, a fluid supply unit (supply pump) which supplies the fluid to the pulsation generator, an ejection tube which has an ejection opening communicating with the pulsation generator, a suction tube into which the ejection tube is inserted with play, a suction channel provided between the suction tube and the ejection tube, a suction opening provided at an end of the suction channel in a vicinity of the ejection opening, and a suction unit (suction pump) which sucks fluid in such a manner that the fluid introduced from the suction opening passes through the suction channel. The ejection opening is held by an inner circumferential part of the suction opening. According to this structure, vibration of the ejection tube in the vicinity of the ejection opening can be reduced.
|SURGICAL KNIFE AND METHOD FOR MAKING INCISION - A surgical knife may include a handle and a blade embedded in the handle. The handle may have a tissue-displacing member surrounding the blade.
|EDGED TOOL - A edged tool with a protective cover is provided, in which there is no necessity for mounting a member for locking a protective cover on a handle main body as a separate member, the protective cover for protecting a blade body can be easily manipulated by one hand and also the blade body can be retained in an exposing state and in a covering state. A surgical scalpel as the protective cover-equipped edged tool is provided with a grip portion formed so as to hold the handle main body by one hand and a supporting portion integrally coupled to the grip portion to support the protective cover so as to slide freely on the outer periphery. A projection is formed on the outer periphery of the supporting portion. A pair of locking portions with which the projection makes an elastic engagement when the protective cover is placed selectively at the covering position or at the exposing position are mounted on the protective cover.
|Compartment Syndrome Treatment Method And Surgical Instrument For Same - A subcutaneous fasciotomy is performed to relieve pressure due to compartment syndrome. A small incision is made in a patient's skin. A surgical instrument is advanced through the entry location, and moved between the skin and the fascia of the patient to a remote location, with a cutter of the instrument in a stowed configuration. After reaching the remote location, the cutter is deployed to pierce an initial opening in the fascia at the remote location. The fascia is maintained adjacent a blade of the cutter via a notch shape that traps the fascia. The instrument is then withdrawn back toward the entry location with the blade incising the fascia to relieve pressure in the muscle compartment. The surgical instrument is then removed through the entry incision.
|LIQUID JET SCALPEL AND METHOD FOR OPERATING A LIQUID JET SCALPEL - The invention relates to a liquid jet scalpel comprising
|Miniature disposable safety scalpel - A disposable safety scalpel comprises a handle and a blade carrier, which fit together such that the blade carrier can shift between a retracted position whereby a front portion of the handle covers or otherwise blocks contact with the sharp edge of the blade, and an extended position whereby the sharp edge of the blade protrudes beyond the handle. The handle has a substantially flat base portion that can be held by the forefinger of the surgeon for shifting of the carrier with the thumb between retracted and extended positions. When the carrier and blade are extended, the surgeon can hold only the base of the handle between the thumb and forefinger for cutting during surgery. The shifting between the retracted and deployed positions with only the fingers of one hand can be readily accomplished even in the presence of slippery fluids during surgery.
|Scalpel Blade Holder - A scalpel blade holder including a handle, a blunt probe, and a blade. A method of using the scalpel blade holder including inserting the blunt probe into a small incision, and advancing the scalpel blade holder to create the incision.
|Nozzle for Use in Generating a Pressure Jet of Liquid - A nozzle for use in generating a pressure jet of liquid wherein the nozzle has a proximal end for connection to a source of pressurised liquid and a distal end at which the pressure jet is generated, characterised in that the nozzle comprises a hollow tube having an axial lumen wherein the lumen has a restriction at the distal end in which an orifice is formed wherein the orifice has a width and an axial length, the width of the orifice being less than that of the lumen, and wherein the hollow tube and the restriction are integrally moulded from a plastic material.
|Appliance for Water-Jet Surgery - An appliance for water-jet surgery is provided that includes a plurality of supply cylinder and piston arrangements in each of which is stored a working fluid that can be expelled, by means of the piston, through an outlet into a pressure conduit. At least one actuation device is provided to actuate the piston of each supply cylinder. By means of a change-over device to change the actuation from the piston of one supply cylinder to the piston of another supply cylinder, it is ensured that the working fluid can be expelled into the pressure conduit from consecutively emptying supply cylinders. As a result, an apparatus with a small structure that is achieved by simple means is disclosed.
|MEDICAL KNIFE - [Problem] Because the knife edge of medical knives such as straight knives manufactured with austenite stainless steel is thin and sharp, there is the problem that the knife edge bends too easily when making incisions in the cornea, sclera, etc. during ophthalmologic surgery. The invention provides a medical knife capable of increasing the strength of the thin, sharp knife edge and preventing the reduction of sharpness. [Solution] This medical knife has a flat cutting part and an inclined surface formed along the border of said cutting part. By electrolytic polishing or chemical polishing of the inclined surface, a convexly curved cutting edge is formed on at least the edge of the inclined surface of the knife. The knife edge has a rounded configuration. The knife edge being rounded increases the thickness of the knife edge, increases the strength thereof and hinders bending.
|MEDICAL KNIFE - Provided is a medical knife which can be more easily handled and makes it possible to maintain low penetration resistance, without the maximum-width parts of said medical knife creating sudden changes in penetration resistance even when passing through tissue. A knife (A) comprises: a pointed tip (
|MICROVITREORETINAL SURGERY BLADES - A micro-vitreoretinal (MVR) blade for incising tissue for a transvenous chorioretinotomy and similar procedures includes a shaft with a working tip having a chisel-type edge on its end or leading edge. Various embodiments of the inventive MVR blade have different chisel-type edge structures, such as a latitudinal chisel, an angled chisel, a chevron, a reverse chevron, a concave semi-lunar and a guarded or step-down working tip. The MVR blade may also include drug/chemical coatings, electrification or freezing to promote hemostasis or chorioretinal anastomosis formation.
|Motor Assembly for a Powered Surgical Instrument - A surgical instrument is provided for cutting bone and other tissue. The surgical instrument is powered by a pressurized fluid and includes a rotatable shaft connected to a dissection tool. The instrument includes a housing member comprising a one-piece base. A rotor housing chamber is defined by the base, and the rotatable shaft is located in the rotor housing chamber. A first bearing housing is defined by the base, located adjacent the rotor housing chamber, and houses a first bearing that engages the rotatable shaft. A second bearing housing is defined by the base, located on an opposite side of the rotor housing chamber from the first bearing housing, and houses a second bearing that engages the rotatable shaft. A passage is defined by the base and operable to direct a pressurized fluid through the base to the rotor housing chamber in order to rotate the rotatable shaft.
|Safety Scalpel - A safety scalpel incorporating a handle similar in thickness, length, weight, balance, shape and feel to the conventional metal handle preferred by most surgeons, and a disposable cartridge assembly that is easily mounted and released from the scalpel handle. The handle comprises a first end and a second end. The cartridge assembly comprises a blade guard/shield that can be slideably mounted onto the second end of the handle, a blade holder/slider that can be disposed within the blade guard, and a blade that can be attached to the blade holder. The safety scalpel incorporates a locking system that prevents the cartridge assembly from sliding off or wobbling on the handle during use.
|MICRO-SCALPEL USED TO TREAT CARPAL TUNNEL SYNDROME - A micro-scalpel used to treat carpal tunnel syndrome has an elongated columnar blade, one end of the blade obliquely cut to form a tip, the obliquely-cut surface of the tip sufficiently sharp to pierce and cut skin of a patient. The other end of the blade is connected to a hollow sleeve connector, and the hollow sleeve connector is combined with a handle. The micro-scalpel is oriented perpendicular to a transverse carpal ligament, and swings from its proximal end toward its distal end to cut the transverse carpal ligament, thereby reducing the number of cuts of the blade and saving time for completing the carpal tunnel surgery.
|EDGED MEDICAL CUTTING TOOL - [Problem] To provide a medical cutting tool with low impalement resistance. [Solution] The edged medical cutting tool comprising a knife, trocar or cutting suture needle has a sharp edge (
|Nucleus Chopper and Splitter - A surgical instrument which both incises and splits the nucleus of a lens has a pair of 5 spring steel segments slidably received in a metallic tube. Each segment terminates in a tip. As the spring steel segments are drawn into the tube the tips come together to form a cutting edge useful for incising the lens. When the segments are extended from the tube the tips separate, forcing the incision open until the lens is split.
|Surgical Knife Safety Handle - A surgical knife safety device having a handle, a blade connected to the handle, and a guard carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. In the retracted position, an enlarged guard radius is provided at the distal end of the handle to allow improved handle control and blade orientation. The enlarged guard radius is positioned to allow the user to firmly grip a large distal handle portion which is preferably molded as a single piece with the blade holder, preventing unwanted blade or handle movement due to guard mechanism tolerances.
Patent applications in class Cutting, puncturing or piercing
Patent applications in all subclasses Cutting, puncturing or piercing