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US 2017/0000983 A1Published application
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.
Claims19
A catheter assembly comprising:
- a catheter hub comprising a wall having an interior wall surface defining a cavity;
- a catheter tube having a distal opening extending distally of the catheter hub;
- a needle, which has a lengthwise axis, a sharpened needle tip, and a crimp, a material build up, a bend or combinations thereof, passing through the catheter hub and the catheter tube with the sharpened needle tip extending distally of the distal opening in a ready to use position;
- a tip protector assembly being removably held with the catheter hub, said tip protector assembly comprising a first protector body located inside a second protector body having a plurality of walls;
- wherein the first protector body comprises a proximal wall, a perimeter defining an opening having the needle passing therethrough, a first arm having a free end extending distally of the proximal wall from a first side of the needle and crossing the lengthwise axis to a second side of the needle in the ready position towards the sharpened needle tip and biased by the needle, a second arm having a free end extending distally of the proximal wall towards the sharpened needle tip and being shorter in length relative to the first arm;
- the free ends of the first arm and the second arm are spaced apart and movable relative to one another;
- wherein the crimp, the material build up, the bend or the combinations thereof on the needle is configured to engage the perimeter defining the opening and moving the tip protector assembly in a proximal direction to a protective position in which the free end of the first arm continues to extend across the lengthwise axis of the needle;
- and
- wherein the second protector body comprises a central access opening having two spaced apart edges, a proximal wall located proximally of the proximal wall of the first protector body, and a distal wall comprising an opening having the needle passing therethrough in the ready to use position.
6 more elements
A catheter assembly comprising:
- a catheter hub comprising a wall having an interior wall surface defining a cavity having a proximal opening;
- a catheter tube having a distal opening extending distally of the catheter hub;
- a needle, which has a lengthwise axis, a sharpened needle tip, and a crimp, a material build up, a bend or combinations thereof, passing through the catheter hub and the catheter tube with the sharpened needle tip extending distally of the distal opening in a ready to use position;
- a tip protector assembly located at least in part inside the proximal opening of the catheter hub, said tip protector assembly comprising a first protector body and a second protector body, said first protector body comprising a first arm having a free end and a second arm having a free end spaced from the free end of the first arm and wherein the free ends of the two arms are independently movable relative to one another;
- wherein the first arm extends from a proximal wall, which has a perimeter defining an opening, and crosses the lengthwise axis of the needle and is biased by a side of the needle in a ready to use position;
- and wherein the second protector body comprises an interior space having the first protector body located therein, a plurality of walls include a distal wall having an opening having the needle passing therethrough in the ready to use position and a proximal wall located proximally of the proximal wall of the first protector body;
- and
- wherein the crimp, the material build up, the bend or the combinations thereof on the needle is configured to engage the perimeter defining the opening on the proximal wall of the first protector body and moving the tip protector assembly to a protective position in which the free end of at least one of the arms extends across the lengthwise axis of the needle.
5 more elements
Dependencies are inferred from the claim text.