# US 2016/0354580 A1 · Catheter devices with pliable catheter hubs and related methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0354580 A1 - Document ID: US20160354580A1 - Status: Published application - Kind: A1 - Application number: 15/170,548 - Filed: 2016-06-01 - Published: 2016-12-08 - Earliest claimed: 2015-06-02 - Applicants: B. Braun Melsungen AG - Inventors: Hui Kuun Teoh; Mohd Zairizal Bin Zakaria; Aik Aun Tan; Chee Mun Phang; Mohamad Yasin Bin Abdulla - Web page: https://patentgrep.com/patent/US20160354580A1 ## CPC - A61M 25/0097: {characterised by the hub (tube connectors or tube couplings A61M39/10)} - A61M 5/162: Needle sets, i.e. connections by puncture between reservoir and tube - A61M 5/1626: {Needle protectors therefor (in combination with syringes A61M5/3202; protectors for sharps A61B50/3001)} - A61M 25/0009: {Making of catheters or other medical or surgical tubes} - A61M 25/0606: {"Over-the-needle" catheter assemblies, e.g. I.V. catheters} - A61M 25/0618: {having means for protecting only the distal tip of the needle, e.g. a needle guard} - 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 A catheter assembly with a catheter, an outer casing positioned over the proximal end and at least part of the hub body of the catheter hub. The outer casing being pliable and has an interior cavity and a septum at a proximal end thereof. A needle hub removably coupled to a proximal end of the catheter hub with the outer casing wedged between the catheter hub and the needle hub. The needle hub has a proximal interior cavity and a shroud with a distal opening. A needle projects distally from the needle hub through the septum of the outer casing and has a needle tip extending out a distal opening of a catheter tube in a ready to use position. ## Claims ### Claim 1 A catheter assembly, comprising: a catheter hub having a hub body, an opening at a proximal end, and an interior cavity defined by the hub body; a catheter tube extending distally from the catheter hub and communicating with the interior cavity of the catheter hub; an outer casing positioned over the proximal end and at least part of the hub body of the catheter hub, said outer casing having an interior cavity and a septum at or near a proximal end; a needle hub removably coupled at the proximal end of the catheter hub such that part of the outer casing is wedged between the needle hub and the catheter hub, the needle hub having interior proximal cavity and a distal cavity; and a needle projecting distally from the needle hub through the septum of the outer casing and having a needle tip extending out a distal opening of the catheter tube in a ready to use position. ### Claim 2 (depends on 1) The catheter assembly of claim 1, wherein a plurality of detents extend laterally from the proximal end of the catheter hub engaging with a plurality of slots defined in the outer casing to secure the outer casing to the catheter hub. ### Claim 3 (depends on 2) The catheter assembly of claim 2, wherein the proximal end of the catheter hub is shaped as a female Luer with external threads, the external threads being the plurality of detents. ### Claim 4 (depends on 3) The catheter assembly of claim 3, wherein one or more channels are formed on an exterior surface of the catheter hub, and one or more ridges are formed in the interior cavity of the outer casing engaging with the one or more channels of the catheter hub to retain the outer casing to the catheter hub. ### Claim 5 (depends on 1) The catheter assembly of claim 1, wherein a flared portion extends laterally from the catheter hub, the outer casing extends over the flared portion. ### Claim 6 (depends on 1) The catheter assembly of claim 1, wherein the outer casing is made of a soft pliable material. ### Claim 7 (depends on 6) The catheter assembly of claim 6, wherein the outer casing forms a seal with the proximal end of the catheter hub. ### Claim 8 (depends on 1) The catheter assembly of claim 1, wherein a connector having a male Luer tip is connected to the proximal end of the catheter hub through the septum of the outer casing. ### Claim 9 (depends on 1) The catheter assembly of claim 1, wherein the septum has a plurality of slits defining a plurality of flaps and a convex outer surface. ### Claim 10 (depends on 9) The catheter assembly of claim 9, wherein the convex outer surface creates an outward tension so that when the flaps are pushed by a male Luer tip, the flaps defect in a proximal direction. ### Claim 11 (depends on 1) The catheter assembly of claim 1, wherein the septum is positioned inside the interior cavity of the catheter hub, and the outer casing has a proximal opening at the proximal end. ### Claim 12 A method of forming a catheter assembly, the method comprising: extending a catheter tube in a distal direction of a catheter hub having a body; placing an outer casing over at least part of the body of the catheter hub; and extending a needle having a needle tip distally through a septum formed with the outer casing and out a distal end of the catheter tube in a ready position; and wherein the outer casing is flexible. ### Claim 13 (depends on 12) The method of claim 12, further comprising extending the needle through a needle guard. ### Claim 14 (depends on 13) The method of claim 13, further comprising placing the needle guard inside a clip housing, said clip housing located in a distal interior cavity of a shroud. ### Claim 15 (depends on 12) The method of claim 12, further comprising engaging a plurality of slots formed in the outer casing with a plurality of detents extending laterally from a proximal end of the catheter hub to secure the outer casing to the catheter hub. ### Claim 16 (depends on 15) The method of claim 15, wherein the proximal end of the catheter hub is shaped with a female Luer with external threads. ### Claim 17 (depends on 12) The method of claim 12, wherein a flared portion extends laterally from the catheter hub and the outer casing extends over the flared portion. ### Claim 18 (depends on 12) The method of claim 12, wherein the outer casing is made of a soft pliable material. ### Claim 19 (depends on 18) The method of claim 18, wherein the outer casing forms a seal with the proximal end of the catheter hub. ### Claim 20 (depends on 12) The method of claim 12, wherein the septum has a convex outer surface.