Patent ID: 8118790

Claim:
An ophthalmic injection system comprising: a tip segment connectable to and removable from a limited reuse assembly, the tip segment comprising: a dispensing chamber having an inner surface and an outer surface, the inner surface defining a cavity for receiving a quantity of a substance; a plunger engaged with the inner surface of the dispensing chamber, the plunger capable of sliding in the cavity of the dispensing chamber, the plunger fluidly sealed to the inner surface of the dispensing chamber, the plunger having a proximate end and a distal end; the proximate end having a first mechanical linkage interface; a heater in proximity to the dispensing chamber; a data store; a first tip interface connector electrically coupled to the heater; a second tip interface connector coupled to the data store; and a first housing at least partially enclosing the dispensing chamber and the plunger; the limited reuse assembly comprising: a power source; a controller for controlling the operation of the system; a first limited reuse assembly interface connector, the first limited reuse assembly interface connector capable of interfacing with the first tip interface connector; a second limited reuse assembly interface connector, the second limited reuse assembly interface connector capable of interfacing with the second tip interface connector; a motor having a shaft; a second mechanical linkage interface located on an end of the shaft; and a second housing at least partially enclosing the controller and the motor; wherein the first mechanical linkage interface is mateable with the second mechanical linkage interface such that when the tip segment is connected to the limited reuse assembly, the first mechanical linkage interface mates with the second mechanical linkage interface so that motion of the shaft results in motion of the plunger.