Patent ID: 6322540
Filing Date: 2001-11-27
Classification: A61M,Y10T

Abstract:
A needle-stick safety syringe comprising:an inner tubular body, plunger, and extended needle at the distal end of the tubular body;a larger protective tubular body concentric with said inner tubular body freely slidable thereon;spring means between the proximal ends of said tubular bodies for biasing them apart;latch means for opposing said biasing including a collar with a flexible cantilevered stop, such collar being permanently fixed to the distal end of said inner tubular body and having an outer diameter which freely slides within said protective tubular body, said stop hooking against a distal edge of said protective tubular body whereby the bias of said spring means is opposed;slot means in said protective tubular body near its proximal end for receiving and capturing said stop when pushed by a finger of a hand grasping said protective tubular body.