An artificial pacemaker Victory SR 5610 (serial number 1723182) from St. Jude Medical, with electrode. The body of the device is about 4 centimeters long, and the electrode measures roughly 58 centimeters.
<a href="//commons.wikimedia.org/wiki/User:Stevenfruitsmaak" title="User:Stevenfruitsmaak">Steven Fruitsmaak</a>
CC BY 3.0
self-made, removed from a deceased patient before cremation.