Patent ID: 8808308

Claim:
A device for implanting an intraocular lens in the lens capsule of an eye, the device comprising: a tubular housing having a primary axis extending between front and rear ends of the housing; a plunger longitudinally disposed within the housing and having first and second ends, the first end being disposed towards the front end of the housing; an electric drive system disposed within the housing, the electric drive system including an electric motor and configured to cause longitudinal translation of the plunger along the primary axis of the housing; a cartridge mount at or near the front end of the housing and configured to accommodate a removable insertion cartridge in alignment with the plunger so that an intraocular lens disposed in the insertion cartridge is displaced from the insertion cartridge as the plunger is translated towards the front end of the housing; a control circuit, electrically connected to the electric motor and configured to start translation of the plunger responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger responsive to the detected fault condition; a removable plunger tip configured to snap fit to the first end of the plunger so that the removable plunger tip engages the intraocular lens as the plunger is translated towards the front end of the housing; and a plunger tip wrench removably mountable to the cartridge mount and configured to accommodate the removable plunger tip for snap fitting to the first end of the plunger as the plunger is translated towards the front end of the housing and the plunger tip wrench also configured to thereafter release the removable plunger tip as the plunger is translated towards the rear end of the housing.