| abstract |
Disclosed is a driver for use with administering multiple doses of a compound contained in a cartridge. The driver has a base, a position selector, and a plunger. The plunger shaft includes projections which engage the position selector so the plunger advances to provide a single dose of the compound. The plunger shaft is rotated to align the plunger projections with the position selector to administer a subsequent dose of the compound. |