When replacing an implanted medical device, the physician may have difficulty locating the new unit in exactly the same space or cavity within the body that held the old unit. Various embodiments and combinations of embodiments of a medical removal/insertion tool are proposed which can be inserted temporarily, as “place holders,” in the space of the implanted medical device to be removed, and used to guide the insertion of the replacement unit and to ensure that the replacement unit is properly situated within the body. In its simplest form, the removal/insertion tool has a “first part” which is configured to facilitate the positioning of the new unit in approximately the same space as the old unit, and a “second part” which serves as a handle for gripping, during use, to insert, position and subsequently remove the first part within the body cavity when replacement is complete.
