Needle assembly and components thereof

摘要

Needle assemblies are generally discussed herein with particular discussions extended to needle assemblies having a tip protector with a plurality of wall surfaces for preventing contact with the needle tip from a side. Aspects of the tip protectors discussed herein include a first protector body having an arm for blocking a needle tip surrounded by a second protector body having a plurality of wall surfaces.

主权项

1. A safety needle assembly comprising:
a housing comprising a wall having an interior wall surface defining a cavity having a tip protector disposed therein; a needle, which has a shaft, a sharpened needle tip, and a crimp, a material build up, a bend or combinations thereof, passing through the housing and the tip protector; the tip protector comprising a first protector body disposed inside a cavity of a second protector body that has an arm defining part of the cavity; said first protector body comprising two spaced apart arms having a proximal wall with an opening located between the two spaced apart arms and a distal end edge; said second protector body comprising a body comprising a distal end edge disposed further distally than the distal end edge of the first protector body and at least two lengthwise edges having the arm extending therebetween that is movable relative to the at least two lengthwise edges; and wherein said arm on the second protector body comprises a projection that projects inwardly towards the cavity of the second protector body; wherein the crimp, the material build up, the bend or the combinations thereof on the needle is configured to engage the opening on the proximal wall and the sharpened needle tip moves proximally of the distal end edge of the first protector body and the distal edge of the second protector body in a protective position.