Cutting element for a retracting needle syringe

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/00 (2006.01)

Patent

CA 2630528

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.

Elément coupant pour seringue (20) à aiguille rétractable munie d'un piston (23) doté d'une extrémité distale détachable et d'une aiguille (83) sollicitée par ressort maintenue par un support détachable. Un élément (43) coupant capable de couper l'extrémité distale détachable et le support détachable comprend une partie (44) de corps dotée d'une extrémité proximale (45), d'une extrémité distale (46), d'une paroi (47) latérale entre celles-ci et d'un passage (50) à travers celle-ci. L'extrémité distale (46) de la partie (44) de corps comprend une arête (48) tranchante et une dent (51) de découpe effilée surélevée dépassant de façon distale et présentant des arêtes (52) convergeant dans le sens distal. Au moins une des arêtes de la dent comprend une paroi (55) latérale coupante destinée à couper l'extrémité distale du piston et le support d'aiguille.

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