Patent ID: 6106499
Filing Date: 2000-08-22
Classification: A61M

Abstract:
A needle assembly usable in the delivery or withdrawal of a liquid fluid during healthcare treatment of a living being, the assembly comprising:a) a tubular needle member having a sharpened distal end, a proximal end with a hub having a hub lumen with a generally smooth interior wall, and an axial needle lumen extending through the needle member and in communication with the hub lumen;b) an elongate shaft member with a diameter less than that of the needle lumen and a length greater than that of the needle member, said shaft member having a proximal end and a blunt distal end and slidably positionable within the needle lumen; andc) a pliable shaft positioning member surroundingly disposed on the proximal end of the shaft member, said positioning member having a diameter magnitude sufficient to longitudinally enter and movably frictionally engage at least a portion of said smooth interior wall of the hub lumen when the shaft member is disposed within the needle lumen to thereby be selectively longitudinally hand movable to retain the distal end of the shaft member within the needle lumen or to extend said distal end beyond the distal end of the needle and cause exposure of said blunt distal end.