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US 8,784,387 B2Granted
Needle assembly and components thereof
AssigneeB. Braun Melsungen AG
InventorKevin Woehr
Life of this patent
Estimating the term…
Abstract
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.
Claims24
A 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 comprising two spaced apart arms each comprising a free end with a gap between the two free ends;
- the first protector body further comprising a proximal wall with an opening located inside an interior cavity of a second protector body, which has a body comprising at least two edges and an arm comprising a projection that is movable relative to the at least two edges;
- 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 in a protective position;
- and
- wherein the arm with the projection on the second protector body and the first protector body are located along a same axial position of the shaft of the needle;
- and
- wherein the second protector body comprises two proximal walls having an elongated non-circular opening therebetween.
6 more elements
A 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;
- wherein the tip protector comprises:
- a first protector body comprising two spaced apart arms each with an independently movable distal end edge and an opening on a proximal wall for engaging the crimp, the material build up, the bend or the combinations thereof;
- a second protector body comprising a distal opening, a body comprising at least two edges and an arm comprising a projection that is movable relative to the at least two edges and defining at least in part an interior cavity having the first protector body disposed therein, and an opening on the body;
- and
- wherein the second protector body comprises a proximal wall comprising at least two end walls having an elongated non-circular opening therebetween, said elongated non-circular opening on the proximal wall of the second protector body disposed proximally of the opening on the first protector body.
4 more elements
A 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 comprising two spaced apart arms extending generally orthogonally of a proximal wall with an opening located between the two spaced apart arms, and a distal end edge, said first protector body located inside an interior cavity of a second protector body, which has a body comprising a distal end edge, at least two edges, and an arm comprising a projection that is movable relative to the at least two edges;
- 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;
- and
- wherein a proximal wall of the second protector body comprises at least two end walls with an elongated non-circular gap therebetween located proximally of the proximal wall of the first protector body.
3 more elements
Dependencies are inferred from the claim text.