# US 8,784,387 B2 · Needle assembly and components thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,784,387 B2 - Document ID: US8784387B2 - Status: Granted - Kind: B2 - Application number: 13/842,968 - Filed: 2013-03-15 - Published: 2013-08-22 - Granted: 2014-07-22 - Earliest claimed: 2006-07-31 - Assignees: B. Braun Melsungen AG - Applicants: B. Braun Melsungen AG - Inventors: Kevin Woehr - Web page: https://patentgrep.com/patent/US8784387B2 ## CPC - A61M 25/0618: {having means for protecting only the distal tip of the needle, e.g. a needle guard} - A61M 5/158: Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body} - A61M 5/3273: {freely sliding on needle shaft without connection to syringe or needle} - A61M 25/0606: {"Over-the-needle" catheter assemblies, e.g. I.V. catheters} - A61M 2005/325: {Means obstructing the needle passage at distal end of a needle protection sleeve} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The needle assembly of claim 1, wherein the proximal wall of the first protector body is located between the two spaced apart arms, at an end opposite the two free ends. ### Claim 3 (depends on 1) The needle assembly of claims 1, wherein the at least two edges are located along an axial position of the shaft and the interior cavity of the second protector where the first protector body is locate and adjacent the arm on the second protector body. ### Claim 4 (depends on 1) The needle assembly of claim 1, wherein the arm of the second protector body defines at least part of the interior cavity having the first protector body located therein. ### Claim 5 (depends on 1) The needle assembly of claim 1, wherein the housing is a catheter hub. ### Claim 6 (depends on 1) The needle assembly of claim 1, wherein the two arms on the first protector body each comprises a non-uniform arm width. ### Claim 7 (depends on 1) The needle assembly of claim 1, wherein the first protector body has a distal end edge and the second protector body has a distal end edge and wherein the needle tip moves proximally of the distal end edge of the first protector body and the distal edge of the second protector body in the protective position. ### Claim 8 (depends on 1) The needle assembly of claim 1, wherein the at least two edges are located adjacent side wall sections on the body of the second protector body that enclose the first protector body. ### Claim 9 (depends on 1) The needle assembly of claim 1, wherein the arm comprising the projection on the second protector body has a free end that points in an opposite direction of the two free ends of the first protector body. ### Claim 10 (depends on 1) The needle assembly of claim 1, wherein the two spaced apart arms of the first protector body and the arm of the second protector body have arm sections that overlap along an axial position of the shaft of the needle. ### Claim 11 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. ### Claim 12 (depends on 11) The needle assembly of claim 11, further comprising a second opening located opposite the opening on the body of the second protector body. ### Claim 13 (depends on 11) The needle assembly of claim 11, wherein the arm of the second protector body comprises a distal end and a proximal end and wherein the distal end of the arm is directly attached to the second protector body and the arm extends in a proximal direction and having a free end. ### Claim 14 (depends on 13) The needle assembly of claim 13, wherein the first protector body has a distal end edge and the second protector body has a distal end edge and wherein 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 the protective position. ### Claim 15 (depends on 11) The needle assembly of claim 11, wherein the proximal wall of the first protector body prohibits the needle from moving proximally of the tip protector in the used position. ### Claim 16 (depends on 11) The needle assembly of claim 11, wherein the needle is prevented from moving distally of the two arms of the first protector body in a used position. ### Claim 17 (depends on 11) The needle assembly of claim 11, wherein the first protector body has a distal end edge and the second protector body has a distal end edge and wherein 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 the protective position. ### Claim 18 (depends on 11) The needle assembly of claim 11, wherein the at least two edges are located adjacent side wall sections on the body of the second protector body that enclose the first protector body. ### Claim 19 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. ### Claim 20 (depends on 19) The needle assembly of claim 19, further comprising a catheter tube attached to the housing. ### Claim 21 (depends on 19) The needle assembly of claim 19, wherein the two spaced apart arms of the first protector body and the arm of the second protector body have arm sections that overlap along an axial position of the shaft of the needle. ### Claim 22 (depends on 19) The needle assembly of claim 19, wherein the arm of the second protector body comprises a distal end and a proximal end and wherein the distal end of the arm is directly attached to the second protector body and the arm extends in a proximal direction. ### Claim 23 (depends on 19) The needle assembly of claim 19, wherein the arm with the projection of the second protector body is located along an axial position of the shaft and along the interior cavity of the second body where the first protector body is located. ### Claim 24 (depends on 19) The needle assembly of claim 19, wherein the arm on the second body defines at least part of the interior cavity having the first protector located therein.