Patent ID: 6966899
Filing Date: 2005-11-22
Classification: A61M,B01J,C40B

Abstract:
1. An injection system for injecting a liquid such as a therapeutic agent into a patient, said system comprising: a source of liquid; a hand-piece remote from said source and adapted to be held by the operator during an injection procedure; a coupling having a first, a second end, and a grove disposed therebetween: a tubing connected to said second end; said hand-piece including a hollow housing and a needle supported by said housing and having a first position wherein said needle is disposed in said housing and a second position in which said needle is disposed at least partially outside said housing to provide the injection, said needle being coupled to said first end of said coupling; and a control member disposed on said hand-piece and coupled to said coupling; wherein said needle is selectively movable between said first and second positions by said control member; and wherein said handpiece and said coupling cooperate to cause said needle to translate and rotate simultaneously as said needle is moved along at least a substantial portion of the path between said first and second positions to prevent said needle from bending; and wherein said coupling is breakable along said groove to allow said tubing to be removed from said hand piece and leaving said needle trapped within said hand-piece.