	US 7,462,166 B2
	Encoding and sensing of syringe information
Kevin P. Cowan, Allison Park, Pa. (US); Barry Iddon, Jeannette, Pa. (US); Michael J. Yanniello, Cheswick, Pa. (US); John A. Brosovich, Pittsburgh, Pa. (US); and Alan D. Hirschman, Glenshaw, Pa. (US)
Assigned to Medrad, Inc., Indianola, Pa. (US)
Appl. No. 10/466,418 PCT Filed Jan. 16, 2002, PCT No. PCT/US02/01052 § 371(c)(1), (2), (4) Date Jul. 16, 2003, PCT Pub. No. WO02/056934, PCT Pub. Date Jul. 25, 2002.
Prior Publication US 2004/0064101 A1, Apr. 01, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 37/00 (2006.01)

U.S. Cl. 604—131

35 Claims

1. 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.