FIELD OF THE INVENTION 
       [0001]    The present invention relates to a reconstitution device or apparatus and a method for reconstituting and more particularly, relates to reconstitution devices suitable for reconstituting many different materials. Furthermore, the present invention includes methods of treatment and methods of use related to a reconstitution device or apparatus. 
       BACKGROUND OF THE INVENTION 
       [0002]    In the pharmaceutical industry, the step of reconstituting a drug or other material is well known. Many pharmaceutical compositions are not capable of being stored for extended periods of time since their potency may change. In order to overcome this problem of a short shelf life, such pharmaceutical products are stored as a solid component and a liquid component. Prior to use, the two components must be mixed together. 
         [0003]    Furthermore, while preservatives are effective in preserving some ingredients included in a pharmaceutical composition, such preservatives may cause adverse reactions with other ingredients of the pharmaceutical composition, namely the active ingredient, and result in degradation and/or spoilage. In some situations, refrigeration may be used to combat degradation or spoilage of a pharmaceutical composition. However, refrigeration is not always accessible and administration of a cooled pharmaceutical composition may reduce the effectiveness, namely solubility and penetration, of the pharmaceutical composition. 
         [0004]    Although many reconstitution systems are directed for use with a powdered solid component and a diluent component, there are also occasions when other forms of material may be utilized. Thus, the reconstitution system may employ two liquids, or a semi liquid component such a paste along with a second component which is typically a liquid. Several problems must be addressed in any reconstitution device such as the problem of obtaining a proper mixture. For highly soluble products such as a powder and a diluent therefore, a simple mixing of the two components is sufficient. Typically in such an arrangement, the diluent and dry components are stored in separate compartments of a device. The device will include a by-pass such that pressure on a plunger will cause the liquid to go through the by-pass to mix with the dry ingredient. Usually a simple shaking of the mixture is sufficient to assure that the mixture is properly constituted. 
         [0005]    However, certain pharmaceutical products require a more thorough mixing and the conventional devices cannot be used. One other problem which is frequently encountered is that the components to be mixed are utilized in a small quantity and conventional mixing devices are not suitable. This is particularly the case when one of the components is in the form of a paste into which a liquid like constituent must be mixed. 
         [0006]    Furthermore, poor application of a pharmaceutical composition can hinder the effectiveness of the pharmaceutical composition. Some advances in the ergonomics and delivery of pharmaceutical compositions have been made, see for example U.S. Pat. No. 6,224,573 (Yeager et al.). However, previous applicators that combined more than one composition together prior to administration do not have sufficient mixing mechanisms to achieve optimal composition storage, mixing, and application. Thus, there remain needs for methods of treating and devices to overcome all the issues that remain with the storage, mixing, and administration of pharmaceutical compositions. 
       SUMMARY OF THE INVENTION 
       [0007]    It is an object of the present invention to provide a reconstitution system or device which is suitable for reconstituting small amounts of pharmaceutical compounds. 
         [0008]    It is a further object of the present invention to provide methods for the reconstitution of pharmaceutical compounds. Some embodiments are suitable for reconstituting small amounts of pharmaceutical compositions. 
         [0009]    According to one aspect of the present invention, there is provided a reconstitution device comprising a device suitable for mixing a first component with a second component, the device comprising first and second housings, the first and second housings being engageable together, a conduit having an internal passageway formed in the first housing, the internal passageway having a dispensing end and an inlet end, a first plunger mounted in the internal passageway proximate the dispensing end, a second plunger mounted in the internal passageway proximate the inlet end, a third plunger mounted in the internal passageway intermediate the first and second plungers, the first and third plungers defining a first compartment therebetween, the second and third plungers defining a second compartment therebetween, a plunger rod at least partially within the internal passageway at the inlet end, a moveable member located in the second housing, the moveable member engaging the first plunger, and a shearing channel formed in a side wall of the conduit to permit mixing of contents located in the first and second compartments. 
         [0010]    According to a further aspect of the present invention, there is also provided a device for mixing a first component with a second component, the device comprising first and second housings, the first and second housing each having a partial screw thread formed on an exterior surface thereof, the first and second housings being engageable together by means of the screw threads, a conduit having an internal passageway formed in the first housing, the internal passageway having a dispensing end and an inlet end, a first plunger mounted in the internal passageway proximate the dispensing end, a second plunger mounted in the internal passageway proximate the inlet end, a third plunger mounted in the internal passageway intermediate the first and second plungers, the first and third plungers defining a first compartment therebetween, the second and third plungers defining a second compartment therebetween, a plunger rod at least partially within the internal passageway at the inlet end, a moveable member located in the second housing, the moveable member engaging the first plunger, the moveable member having at least one leg extending upwardly therefrom, the upwardly extending leg engaging the first housing such that the first and second housing cannot be disengaged from an initial first position, the arrangement being such that when the plunger rod is moved to commence transfer from the second compartment to the first compartment, the leg on the moveable member disengages from the first housing to permit rotatable movement of the first and second housings. 
         [0011]    According to a still further aspect of the present invention, there is also provided a method of filling a reconstitution device comprising the steps of supplying first and second housings, the first and second housings being engageable together, a conduit having an internal passageway formed in the first housing, the internal passageway having a dispensing end and an inlet end, a moveable member mounted in the second housing, placing a first plunger on the moveable member, the plunger sealing the dispensing end of the internal passageway, inserting a first material in the internal passageway on the first plunger, inserting a second plunger in the internal passageway from the inlet end to seal the first material in a first compartment formed between the first and second plungers, placing a second material on top of the second plunger, inserting a third plunger to seal the second material between the second and third plungers, and placing a plunger rod adjacent the third plunger. 
         [0012]    In one embodiment, the device, as above mentioned, includes first and second housings. The first and second housings are engageable together such that they may be retained in the assembled position for a period of time as will be discussed hereinbelow. The first and second housings are releasable. 
         [0013]    Within one of the housings, there is provided a conduit having a hollow passageway therein. The passageway has three plungers mounted therein for containing the ingredients to be reconstituted. In one embodiment, there is provided a first plunger which is located proximate the outlet or dispensing end of the conduit as will be discussed in greater detail hereinbelow. A second plunger is mounted in the internal passageway closer to the inlet end of the conduit. However, this second plunger is not located at the very end, but rather is usually proximate the middle of the conduit. 
         [0014]    A third plunger mounted in the passageway is intermediate of the first and second plungers. The first and third plungers define a first compartment for receiving a first ingredient while the second and third plungers define a second compartment therebetween for containing a second ingredient. Typically, the second compartment will contain the less viscous of the ingredients. A shearing channel is formed in the side wall of the conduit, again for reasons which will be discussed hereinbelow. The shearing channel is initially at least partially covered by the third plunger so as to maintain the ingredients apart. 
         [0015]    A plunger rod is utilized to exert pressure or push on the second plunger. This results in movement of the third plunger such that access to the shearing channel is obtained. Subsequently, the ingredient in the second compartment will pass through the shearing channel to mix with the component in the first compartment. 
         [0016]    In one embodiment, a spring member is provided which is arranged to exert pressure or bias the first plunger. Thus, after transferring the ingredient from the second compartment to the first compartment, a mixture or admixture is achieved. Subsequently, with release of the pressure on the plunger rod, the spring will cause the first plunger to move rearwardly such that the mixture or admixture is again forced to pass through the shearing channel. This can be repeated several times to ensure that the composition formed by the at least two ingredients is properly mixed. Naturally, one could use the finger of the user instead of the spring. 
         [0017]    To assist in proper mixing, the shearing channel is sized to provide a relatively small cross-sectional area such that significant shearing is obtained. Typically, the shearing channel will have a diameter of less than 1 mm. In alternative embodiments, the diameter of the shearing channel is greater than 1 mm, less than 1 mm, 0.5 mm, or 0.3 mm. In other embodiments, the shearing channel does not have a fixed diameter; rather, the shearing channel is tapered. 
         [0018]    As previously mentioned, the device is particularly suited for mixing of small amounts. In some instances, the total volume of the constituents would range between 0.1 and 0.2 of a cc. In alternative embodiments, the total volume is greater than 10 cc, less than 10 cc, 5 cc, 1 cc, or 0.5 cc. 
         [0019]    The moveable member mounted in the second housing in one embodiment is connected to the first plunger. In order to do so, the moveable member has a small rod like element with an enlarged end in some embodiments. The enlarged end would enter the plunger such that the plunger will move back and forth with the moveable member. 
         [0020]    The plunger rod is positioned to initially contact the second plunger. Thus, a portion of the plunger fits within the passageway while a further portion extends to the end of the housing which is open and thus forms a head for applying pressure to the plunger rod by the thumb or a finger of the user. 
         [0021]    To prevent accidental movement of the plunger rod, the head is retained in position by a projection on the interior wall of the housing. The projection is sufficient to maintain the plunger rod in position until sufficient pressure is applied to the head. 
         [0022]    Once the initial pressure is applied to the plunger rod, it will start moving the second plunger downwardly and apply pressure to the ingredient in the second compartment. This in turn will cause sufficient movement of the third plunger such that access is had to the shearing channel. The liquid will then mix with the ingredient in the first compartment. Upon releasing the plunger rod, the spring will apply sufficient pressure to the moveable member which in turn will move the first plunger rearwardly and force the mixture to again pass through the shearing channel. In some embodiments, these steps are repeated. Instead of using the spring to move the moveable member, a manual arrangement wherein a digit of the user may be employed. 
         [0023]    In one embodiment, the initial movement of the third plunger will cause the disengagement of the first and second housings to thereby permit the housings to be disengaged when so desired. This arrangement provides the advantage that the user cannot access the ingredients without at least having gone through one mixing operation. 
         [0024]    The present invention also includes methods of reconstitution and methods of treatment with reconstituted compositions, namely pharmaceutical compositions. Although the some embodiments have compositions for reconstitution and use for treatment are pharmaceutical compositions suitable for the treatment of sexual dysfunction, the methods disclosed herein are suitable for other compositions, such as cosmetics, foods, and vaccines. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0025]    Having thus generally described the invention, reference will be made to the accompanying drawings illustrating embodiments thereof, in which: 
           [0026]      FIG. 1  is a perspective view of a reconstitution device according to an embodiment of the present invention; 
           [0027]      FIG. 2  is a side elevational view thereof; 
           [0028]      FIG. 3  is a top plan view thereof; 
           [0029]      FIG. 4  is an exploded view of the reconstitution device; 
           [0030]      FIG. 5  is a cross sectional view of a lower portion of the reconstitution device; 
           [0031]      FIG. 6  is a cross sectional view similar to  FIG. 4  but rotated through 90 degrees; 
           [0032]      FIG. 7  is a cross sectional view of the upper portion of the reconstitution device; 
           [0033]      FIG. 8  is a cross sectional and exploded view of both housings forming the reconstitution device; 
           [0034]      FIG. 9  is cross sectional view illustrating the assembled reconstitution device; 
           [0035]      FIG. 10  is a cross sectional view similar to  FIG. 8  illustrating commencement of the reconstitution constituting step; 
           [0036]      FIGS. 11 to 14  are cross sectional views illustrating the functioning of the reconstitution device; 
           [0037]      FIGS. 15 and 16  are cross sectional views illustrating the separating of the two housings for application of the contents; and 
           [0038]      FIG. 17  is a cross sectional view of one of the housings showing an alternative embodiment. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Definitions 
       [0039]    Unless otherwise stated, the following terms used in this application, including the specification and claims, have the definitions given below. As used in the specification and the appended claims, the singular forms “a”, “an”, and “the” include plural referents unless the context clearly dictates otherwise. 
         [0040]    The term “administer” or “administration” means the act of giving a pharmaceutical composition to a subject. 
         [0041]    The term “compound”, “composition”, “ingredient”, and “component” may sometimes be used interchangeably to refer one or more chemical components. 
         [0042]    “Disease” means any disease, condition, symptom, or indication. 
         [0043]    The term “drug” or “pharmaceutically active agent” as used herein is intended to mean a compound or composition of matter which, when administered to an organism/subject, which is human or animal, induces a desired pharmacologic and/or physiologic effect by local and/or systemic action. 
         [0044]    An “effective amount” means an amount of a compound that, when administered to a subject for treating a disease, is sufficient to effect such treatment for the disease or condition. The “effective amount” will vary depending on the compound, the disease state being treated, the severity or the disease being treated, the age and relative health of the subject, the route and form of administration, the judgment of the attending medical or veterinary practitioner and other factors. 
         [0045]    As used herein “excipient” means a component or an ingredient that is acceptable in the sense of being compatible with the other components of the formulation and not deleterious to a subject to which the formulation is to be administered. 
         [0046]    The term “immediately before” or “immediately prior” generally means less than two hours before application of a composition or before the desired next step; however, this term is not limited to this time frame because the chemical properties or desired state of a pharmaceutical composition may require a time frame more than two hours before proceeding with the next step. 
         [0047]    The term “immediately after” or “immediately following” generally means less than two hours after application of a composition before the desired next step; however, this term is not limited to this time frame because the chemical properties or desired state of a pharmaceutical composition may require a time frame more than two hours before proceeding with the next step. 
         [0048]    “Optional” or “optionally” means that the subsequent described event or circumstance may but need not occur, and that the description includes instances where the event or circumstances occurs and instances in which it does not occur. 
         [0049]    The term “penetration enhancer” means a chemical compound that increases the permeability of the skin to a drug. 
         [0050]    “Pharmaceutical compositions” means a composition that is generally safe, non-toxic, and neither biologically nor otherwise undesirable and includes that which is actable for veterinary as well as human pharmaceutical use. 
         [0051]    “Pharmaceutically acceptable” means that which is useful in preparing a pharmaceutical composition that is generally safe, non-toxic, and neither biologically nor otherwise undesirable and includes that which is actable for veterinary as well as human pharmaceutical use. This language may also include pharmaceutically acceptable salts of a pharmaceutically acceptable composition. 
         [0052]    “Subject” means mammals and non-mammals and the term does not denote a particular age or sex. 
         [0053]    The term “pharmacological effect” as used herein encompasses effects produced in the subject that achieve the intended purpose of a therapy. 
         [0054]    “Transdermal” application or drug delivery means delivery of a drug by passage into and though the skin and/or the underlying tissues and into the blood stream. 
         [0055]    “Treating” or “treatment” of a disease includes preventing the disease, inhibiting the disease, and/or relieving the effects of a disease. 
         [0056]    The methods and apparatuses disclosed herein can be used in the mixing and/or application of numerous different compositions, including vaccines, medicaments, pharmaceutical compositions, cosmetics, and food products. Although the some embodiments include applications and methods for pharmaceutical compositions, one skilled in the art will appreciate applicability of this disclosure in other areas. 
         [0057]    Referring to the drawings in greater detail and by reference characters thereto, there is illustrated a reconstitution device which is generally designated by reference numeral  10 . 
         [0058]    Referring to  FIG. 1 , an embodiment of a reconstitution device  10  includes a first housing generally designated by reference numeral  12  and a second housing generally designated by reference numeral  14 . First housing  12  includes a wall  16 , wall  16  having first projections  18  located at a first distance from the top thereof and second projections  20  at a second distance from the top thereof. In the illustrated embodiment, there are provided two such projections  18  and  20 ; it will be understood that in alternative embodiments, one or more is utilized. 
         [0059]    At a narrower end  22  of first housing  12 , there is provided a pair of screw threads  24 ,  26  for reasons which will become apparent hereinbelow. Narrower end  22  also defines first and second recesses  53 ,  55  intermediate screw threads  24 ,  26 . 
         [0060]    A conduit  28  is located interiorly of first housing  12  and includes an internal passageway  30  extending therethrough. A shearing recess  32  is provided within the interior wall of conduit  28 . 
         [0061]    A ring member generally designated by reference numeral  34  mounts over narrower end  22  of first housing  12 . 
         [0062]    On a wall  35  of second housing  14 , there are provided a set of lugs  36  which act as threads for engaging with screw threads  24 ,  26 . An end cover  38  covers the larger end of second housing  14  and is secured thereto by adhesives or welding or the like. End cover  38  includes a centering structure  40 . 
         [0063]    Mounted interiorly of second housing  14  is a moveable member  42 . As may be seen in the drawings, moveable member  42  is provided with a center post  44  having an enlarged portion  45 . Moveable member  42  has a spring recess  46  formed therein to receive a spring  48 . At the other end, spring  48  is mounted around centering structure  40 . Moveable member  42  also has a guide rib  47 . Guide rib  47  is designed to fit within a channel  51  formed in an inner wall  57  of second housing  14 . Moveable member  42  also has first and second legs  43 ,  49  extending upwardly therefrom. In an initial position, legs  43 ,  49  fit within recesses  53  and  55  which will then block relative rotation of housings  12 ,  14  with respect to each other. Thus, the housings cannot be easily unscrewed until moveable member  42  is moved out of position. 
         [0064]    Reconstitution device  10  includes a first plunger  50  which is situated near the dispensing end of conduit  28 . A second plunger  52  is located rearwardly towards the inlet end of conduit  28  while a third plunger  54  is situated therebetween. It will be noted that first plunger  50  has a recess  56  to receive center post  44  of moveable member  42 . 
         [0065]    Third plunger  54  has a side wall  80  with a concave structure. A first end wall  82  is relatively flat or planar while end wall  84  has a somewhat conical configuration. First plunger  50  has a side wall  86  with a plurality of concave recesses therein and end wall  88  (which faces third plunger  54 ) has a conical configuration. Similarly, second plunger  52  also has a pair of concave recesses formed therein and an end wall  92  which is somewhat conical in configuration. 
         [0066]    A plunger rod generally designated by reference numeral  58  is situated within conduit  28 . Plunger rod  58  includes a stem portion  60  which abuts second plunger  52  and a head  62  which fills the open end of first housing  12 . Head  62  has at least one aperture  64  which are designed to receive or engage first projections  18 . In some embodiments, the device contains two recesses or more than two recesses. Stem  60  also has a rib  66  which functions as a guide for the movement of plunger rod  58  and which engages in a slot formed in conduit  28 . 
         [0067]    The first and third plungers define therebetween a first compartment  74  while second and third plungers define therebetween a second compartment  76 . 
         [0068]    Within first compartment  74 , there is provided a first component  70 . In one embodiment, the first component  70  is in the form of a powder, paste or other fluid. Second compartment  76  contains a second component  72  which typically will be a less viscous material such a liquid. Both compartments  74  and  76  are thus sealed from any contamination. 
         [0069]    As shown in  FIG. 9 , pressure on plunger rod  58  will cause movement of second plunger  52  and third plunger  54 . Third plunger  54  will advance to a point such that shearing recess  32  is aligned with both first compartment  74  and second compartment  76  permitting a mixture  78  to be formed. The initial movement of plunger rod  58  will cause moveable member  42  to move out of its position blocking rotation of housings  12 ,  14 . After removal of the pressure, as shown in  FIG. 11 , spring  48  will exert pressure on moveable member  42  which in turn will drive second plunger  52  rearwardly or upwardly as shown in the drawing. The mixture  78  will then flow back into second compartment  76 . A continuing back and forth movement is exerted such that continued passage through shearing recess  32  will ensure adequate mixing of the composition  78 . The spring  48  will not cause moveable member  42  to return to its original position due to projection  20 . 
         [0070]    After repeating the steps for the desired number of times, first housing  12  and second housing  14  are separated and mixture  78  is exposed for use. 
         [0071]    In the embodiment of  FIG. 16 , there is provided a different type of shearing channel  122 . As will be noted, shearing channel  122  is formed within the wall defining conduit  28 . Thus, third plunger  54  will abut the wall and is sized such that there is provided an inlet  125  and an outlet  127  from shearing channel  122 . When the mixing flow is reversed, the mixture enters outlet  127  and exits inlet  125 . 
         [0072]    In addition to the embodiment described above, alternate embodiments are contemplated. For example, a plunger need not be used as a means for forcing flow or mixing of compositions held within. Therefore, as one skilled in the art would appreciate, other embodiment use other types of mechanisms to cause a composition to flow out of or into a compartment. For example, in an alternative embodiment, the walls of the conduit are compressed, causing the available volume in a compartment to decrease, and thus causing a composition contained within to flow out of the compartment. Accordingly, if the walls of the conduit are expanded outward, causing the internal volume to increase and creating a relative lower pressure, composition contained elsewhere in the device is forced to flow into the compartment. In such case, the conduct is made of a flexible and durable plastic. 
         [0073]    Alternatively, the compartment has walls that are separate from the conduit, and in such case, the compartment is a distinct chamber. For the purposes of this disclosure, compartment and chamber may be used interchangeably to describe various embodiments. 
         [0074]    In one embodiment, the conduit and or the chambers that form the areas for mixing is at least one removable and disposable component of the device. These components, which include chambers, plungers, shearing channels, or other components, described herein, are be pre-filled with the desired compositions for mixing and administration. Therefore, in one embodiment, the device is reusable and chambers with compositions are in the form of disposable cartridges. Active ingredients and other compositions to the final pharmaceutical composition are stored in one or more pre-packaged cartridges. As noted above, such cartridges serve as chambers themselves or be inserted into chambers in certain embodiments. In such an embodiment, plungers, conduits, and other components for mixing are part of the one or more disposable cartridges. 
         [0075]    When a composition is a chamber in subject to settling or separation, pre-mixing in a single chamber prior to combining the composition with the other chambers is desired. In such a case, as one skilled in the art would appreciate, alternative embodiments use different means of mixing, such as one of the means described herein. 
         [0076]    Although the embodiment illustrated in the figures includes compartments shown as being separated by a plunger, alternative embodiments use different means of separation, such as a door, wall, or permeable membrane. In the case of a wall, one embodiment includes a separation device in the shearing channel, which opens for mixing. In some embodiments, more than one conduit is used. One such embodiment uses two conduits to mix two compositions separately, which are then combined prior to or at the time of dispensing. In an alternative embodiment, the two conduits are dispensed through separate openings in the device or through the same opening but in separate steps. 
         [0077]    The coil spring, illustrated and described herein, is not the only contemplated embodiment. Other mechanical (including electronically powered) components are used to facilitate mixing in alternative embodiments. For example, one embodiment has a mechanical crank or motor. In an embodiment containing a motor, a battery is used; it should be noted, however, that a motor need not be present in the device for a battery to be included. A battery is desired for some embodiments because it allows for additional components to be included in the device. 
         [0078]    Contemplated components include: sensors to measure the temperature, pH, viscosity, and/or other physical and chemical properties; external electronic displays; heating and/or cooling component(s); microprocessors, transmitters, and other electrical components; and/or values. 
         [0079]    A heating or cooling component provides for two additional utilities. First, in one embodiment, the heating and/or cooling component aids in the storage of a composition in at least one chamber by providing temperature modification, notification, and/or control. Second, in another embodiment or combined with the previous embodiment, the heating and/or cooling component is used as a thermodynamic catalyst for reactions in one or more chambers. In one embodiment, the heating and/or cooling component is electrically powered or chemically facilitated. In one embodiment, one or more valves is desired or necessary to achieve a desired result because of changes in pressure before, during, or after the mixing of one or more compositions. In one embodiment, such a valve is a one way valve, capable of releasing gases resulting from mixing. 
         [0080]    In some embodiments, compositions are stored at a pressure above or below atmospheric pressure. In one embodiment, one or more chambers fill with air. In other embodiments, one or more chambers contain a gas at above atmospheric pressure or below atmospheric pressure. 
         [0081]    The second plunger need not be the only means of blocking passage through the shearing channel prior to activation by a user. In an alternative embodiment, the wall of the conduit has a door that is connected to the compression systems, the plungers and springs for example, that simultaneously opens the shearing channel upon initiation by a device user. In addition, in some embodiments, a third composition is stored in the shearing channel. As one skilled in the art would appreciate, one embodiment contains a shearing channel where the mixing means is one or a combination means of mixing, depending on the desired result. For example, the shearing channel may create vortex flow or utilize baffles and other protruding mixing members. In another example, the shearing channel is replaced, by other mixing means. In one embodiment for example, the third plunger, which separated the two compartments in the illustrated embodiment, operates as to open a passage way for exchange of compositions stored in the two compartments; for instance, the third plunger pivots open upon activation of mixing by a user. In one embodiment, the disclosed device allows for high shear flow for efficient emulsification of components with a minimum or exact number of mixing cycles. Although high shear flow is desired in some instances, low shear flow may be desired. In such situations, another embodiment includes at least one shearing channel that is enlarged or a less shearing mixing means is used. 
         [0082]    Depending on the compositions being mixed, the number of cycles varies in alternate embodiments. In order to ensure a proper number of cycles, in some embodiments, the device includes a cycle counter and/or a component to limit the number of cycles possible for a given administration of a dosage. In an embodiment, a cycle counter includes a mechanical wheel or crank and the counter is internal with a stopping mechanism and/or contains an external readable display for the user. A component to count and/or limit the number of cycles is mechanical in one embodiment and electrical in another. 
         [0083]    In an alternative embodiment, the upper housing is a disposable component and the lower housing is component made for repeated use. Therefore, in one embodiment, the lower housing component is the location for features such as the cycle counter, temperature monitor, battery, and other features discussed in and foreseeable from this disclosure. 
         [0084]    In some embodiments, after a pre-determined number of cycles, a composition in a third chamber is released into the chamber(s) where mixing is occurring. More than three chambers is used in this manner in other embodiments. Therefore, where sequential reactions of multiple components are require or desired for a final composition, the device and method can achieve the desired result. In one embodiment for example, a first composition is stored in a first chamber, a second composition is stored in a second chamber, and a third composition is then stored in a third chamber. Upon initiation of mixing the first and second compositions are combined for a desired number of mixing cycles. Next, the third composition in the third chamber is combined with the already mixed first composition and second composition. This example is useful for a reaction where initial compound in the first and second compositions cause adverse reactions with the compounds in the third composition. However, upon mixing the first and second compositions, the undesired components are chemically altered via chemical reaction and therefore, no adverse reaction occurs when the third composition is mixed with the first two. In alternative embodiments, it is desired to have the product of the reaction of the first and second compositions at equilibrium prior to mixing and reacting the product with the third composition. 
         [0085]    Because of the area of application in some instances, one embodiment includes a throttle or regulator for limiting the rate at which the composition can be dispensed from the device. For example, one embodiment is for the treatment of male sexual dysfunction calls for application of the pharmaceutical composition in the urethra. Therefore, dispensing the pharmaceutical composition at a high rate may result in a less then desired amount of pharmaceutical composition entering and penetrating the urethra due to splatter and/or off-target application. 
         [0086]    In some embodiments, the device contains one or more components for more exact mixing. For example, hand actuated plungers, such as those disclosed in U.S. Pat. No. 4,250,755 (Kenney), are used to allow for more exact dosages. Other actuating components, electronic for example, are also contemplated and desired for other embodiments. Furthermore, more precise actuating plungers are used in the dispensing of the composition other embodiments. 
         [0087]    In one embodiment, the device is built as one assembly; therefore, the upper and lower housing element is not separated for dispensing because there is no second housing to be separated. Instead, there is an opening that can be opened at the time for dispensing. The body and components of the device are made utilizing molding or other fabrication techniques. In one embodiment, materials for such components is rigid plastic, such as polyolefin, including polyethylene, polypropylene, and the like, suitable for injection molding, and in some embodiments the plastics are clear, translucent or opaque. In the case of clear or translucent material, compositions that are subject to color change or physical property change due to spoilage is viewable by a user. 
         [0088]    In addition to flexibility in the dimensions of the device, some embodiments of the device are designed for better application, and included additional components such as nozzles or adapters. Such nozzles or adapter are be suitable for delivery of the pharmaceutical composition onto or into the body, including the urethra, the vagina, the ear and the eye, the mouth, but delivery is not limited to those parts expressly listed here. In one such embodiment, the device includes a suitable conical nozzle for administration of a pharmaceutical composition for the treatment of male sexual dysfunction into the urethra of a subject. In another embodiment, the device includes a suitable conical nozzle for administration of a pharmaceutical composition for the treatment of female sexual dysfunction into the vagina of a subject.
A reconstitution device ( 10) for mixing a first component ( 70) with a second component ( 72) wherein there are provided first and seconds housings ( 12, 14) which are engageable together, a conduit ( 28) having an internal passageway ( 30) having a dispensing end and an inlet end, first, second and third plungers ( 52, 54) mounted in said internal passageway ( 30), first and second compartments ( 70, 72) being defined by the plungers, a shearing channel ( 32) formed in a side wall of conduit ( 28) to permit mixing of contents located in the first and second compartments ( 74, 76), a plunger rod ( 58) to cause initial mixing of the first and second components ( 70, 72), and a spring member ( 48) biasing against the moveable member ( 42).