CUTTING ELEMENT FOR A RETRACTING NEEDLE SYRINGE

摘要

A cutting element for a retracting needle syringe (20) having a plunger (23) with a cuttable distal end and a spring biased needle (83) held by a cuttable support. A cutting element (43) capable of cutting the cuttable distal end and the cuttable support includes a body portion (44) having a proximal end (45), a distal end (46), a side wall (47) therebetween and a passageway (50) therethrough. The distal end (46) of the body portion (44) includes a cutting edge (48) and a raised distally projecting tapered cutting tooth (51) having distally converging edges (52). At least one tooth edge includes a sharp side wall (55) for cutting the distal end of the plunger and the needle support.