Patent ID: 7462166

Claim:
An injector for use with an encoded syringe or an encoded syringe adapter, the injector comprising: an interface adapted to attach the syringe or the syringe adapter to the injector; a positioning subassembly comprising a translucent surface through which light can pass; and at least one abutment member spaced from the translucent surface to position the encoded syringe or the encoded syringe adapter seated in a gap formed between the translucent surface and the abutment member at a desired position relative to the translucent surface, at least one energy source disposed axially rearward of the positioning subassembly and adapted to direct energy in an axial direction; and at least one sensor adapted to detect energy impinging thereupon as a result of the encoding of the syringe or the syringe adapter; wherein the at least one energy source comprises a light source.