Patent ID: 8012124

Claim:
A front-loading injector for injecting fluid from a syringe having a barrel, a closed forward end with a discharge opening therein, an open rearward end, and structure extending radially outward from and integrally included on the barrel, wherein the structure is located toward a rearward end of the barrel, the injector comprising: an injector housing having a front with an opening therein and an injection ram in the injector housing extendable along an axis of the ram through the opening to drive a plunger in a syringe mounted to the injector; a member moveable relative to an axis between a retracted position and an engaged position in which the member engages the syringe forward of the structure on the syringe; and a cam coupled to the member, the cam interacting with the structure on the syringe such that rotation of the syringe actuates the cam, the cam causing movement of the member upon cam actuation.