Patent ID: 8052645

Claim:
A system for injecting a fluid medicament into a patient which comprises: a removable and disposable cassette having a latch mechanism; a hypodermic syringe engageable with the latch mechanism for latching the syringe within the disposable cassette; a reusable injector; a fixation member for holding the disposable cassette on or in the injector in a fixed position during the operation of the injector; a first motor mounted on or in the injector, the first motor being engageable with the disposable cassette for selectively latching and unlatching the syringe within the disposable cassette, and engageable with the syringe for moving the unlatched syringe within the disposable cassette between a first position and a second position; a second motor mounted on or in the injector, the second motor being engageable with the syringe for expelling the fluid medicament from the syringe; and a computer mounted on or in the injector for coordinated control of the first and second motors, wherein the disposable cassette contains the hypodermic syringe comprising the injection needle when the disposable cassette is removed from the injector.