# US 2025/0082909 A1 · Catheters with guidewire adaptors 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 2025/0082909 A1 - Document ID: US20250082909A1 - Status: Published application - Kind: A1 - Application number: 18/696,096 - Filed: 2022-09-29 - Published: 2025-03-13 - Earliest claimed: 2021-09-29 - Assignees: B. Braun Melsungen AG - Applicants: B. Braun Melsungen AG - Inventors: Teng Lip KHOO; Lilian Zhi Ling LEW; Mohd Zairizal BIN ZAKARIA; Chee Mun PHANG; Keng Seang TAN; Kavintharan N/A; Dominik JAROS; Andre WEISS - Web page: https://patentgrep.com/patent/US20250082909A1 ## CPC - A61M 25/09041: {Mechanisms for insertion of guide wires} - A61M 25/0009: {Making of catheters or other medical or surgical tubes} - A61M 25/0097: {characterised by the hub (tube connectors or tube couplings A61M39/10)} - A61M 25/0618: {having means for protecting only the distal tip of the needle, e.g. a needle guard} - A61M 39/06: Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof - A61M 2025/09116: {Design of handles or shafts or gripping surfaces thereof for manipulating guide wires} - A61M 2039/064: {Slit-valve} - 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 having a catheter hub and a needle hub having an interior, an adaptor having a tip is disposed in the interior of the needle hub, and a guidewire dispenser having a connection tip located in a bore of the adaptor. A guidewire can extend through the dispenser and into the adaptor for use to guide a catheter tube. The adaptor can have a valve to restrict or limit blood flow in the proximal direction. Gas channels can be provided on an exterior of the adaptor to facilitate air venting and blood flashback. ## Claims ### Claim at position 1 1-67. (canceled) ### Claim 68 A catheter assembly comprising: a catheter tube attached to a catheter hub and a needle attached to a needle hub, wherein the needle is located in a lumen of the catheter tube and a needle tip of the needle projects out a distal opening of the catheter tube; an adaptor having a body comprising a base, a tip, and a bore extending through the body, the base having a base bore section and the tip having a tip bore section, the tip located in a proximal opening of the needle hub; and a guidewire dispenser having a frame with a plurality of branches, a connection tip at a first branch of the plurality of branches located inside the base bore section of the adaptor; and wherein a guidewire extends through a second branch of the plurality of branches and in through the connection tip at the first branch. ### Claim 69 (depends on 68) The catheter assembly of claim 68, further comprising a housing comprising a first frame attached to a second frame and having an interior space, said housing having a distal opening and a proximal opening and the catheter hub is located at least in part in the interior space of the housing. ### Claim 70 (depends on 68) The catheter assembly of claim 68, further comprising a duct having a first end (308a) attached to a socket at the second branch and wherein the guidewire extends at least partially into the duct. ### Claim 71 (depends on 70) The catheter assembly of claim 70, wherein the duct has a second end attached to a socket of a third branch of the plurality of branches. ### Claim 72 (depends on 68) The catheter assembly of claim 68, further comprising a valve located in the bore of the adaptor. ### Claim 73 (depends on 68) The catheter assembly of claim 68, further comprising a needle guard located in an interior cavity of the catheter hub. ### Claim 74 (depends on 68) The catheter assembly of claim 68, wherein the guidewire has at least two guidewire sections with at least two different diameters. ### Claim 75 (depends on 68) The catheter assembly of claim 68, wherein the tip of the adaptor comprises a plurality of spaced apart gas channels. ### Claim 76 (depends on 75) The catheter assembly of claim 75, further comprising a plurality of spaced apart elongated ribs located on an exterior of the tip, and wherein a ravine comprising a width and a length is defined between two adjacent elongated ribs. ### Claim 77 (depends on 74) The catheter assembly of claim 74, wherein the guidewire comprises a shoulder or a gradual taper located at a point between the distal guidewire section and the proximal guidewire section. ### Claim 78 (depends on 77) The catheter assembly of claim 77, wherein the distal guidewire section passes through the needle at the crimp and extends out an opening at the needle tip. ### Claim 79 (depends on 68) The catheter assembly of claim 68, wherein the tip of the adaptor comprises a cannula channel having an inside measurement and a guidewire passage having an inside measurement, and wherein the inside measurement of the cannula channel is larger than the inside measurement of the guidewire passage. ### Claim 80 (depends on 79) The catheter assembly of claim 79, wherein the cannula channel is located distal of the guidewire passage. ### Claim 81 (depends on 68) The catheter assembly of claim 68, wherein the base of the adaptor is formed with a plurality of slats. ### Claim 82 (depends on 68) The catheter assembly of claim 68, wherein the body at the tip of the adaptor has a cannula channel having an interior surface defining a non-circular cross-sectional opening. ### Claim 83 (depends on 68) The catheter assembly of claim 68, wherein the plurality of branches comprises at least three branches, which include a first branch, a second branch, and a third branch. ### Claim 84 (depends on 83) The catheter assembly of claim 83, further comprising a tubing having a first end, a second end, and a lumen and wherein the guidewire is disposed at least in part in the lumen of the tubing. ### Claim 85 (depends on 75) The catheter assembly of claim 75, wherein the plurality of gas channels comprises four to twelve gas channels. ### Claim 86 A catheter assembly comprising: a catheter tube attached to a catheter hub and a needle having a needle tip attached to a needle hub, wherein the needle projects through the catheter tube and the needle tip disposed distally of a distal opening of the catheter tube; an adaptor having a body with an exterior surface and an interior surface defining a bore, the body further having a base having a base bore having a valve chamber and a valve comprising at least one slit and two flaps located in the valve chamber and a tip having a guidewire passage, said tip located in a proximal opening of the needle hub; and a guidewire dispenser having a tip disposed in the bore of the adaptor and a guidewire having a first end disposed in the bore of the adaptor. ### Claim 87 (depends on 86) The catheter assembly of claim 86, further comprising a plurality of spaced apart gas channels disposed on the exterior surface of the body of the adaptor. ### Claim 88 (depends on 86) The catheter assembly of claim 86, further comprising a plurality elongated ribs disposed on the exterior surface of the body of the adaptor. ### Claim 89 An adaptor for use to guide a guidewire through a needle lumen comprising: a body comprising a base, a tip, and a bore extending through the body; the base having a base bore section and the tip having a tip bore section; at least one of a cannula channel at the tip having a plurality of generally straight sides with two adjacent plurality of straight sides connected to one another by an arcuate connecting portion and sized to receive a needle shaft and a valve comprising a wall having at least one slit positioned in the base bore of the base; wherein the base comprises a proximal opening sized and shaped for receiving a tip of a guidewire dispenser and a first engagement structure for engaging a second engagement structure on the tip of the guidewire dispenser. ### Claim 90 (depends on 89) The adaptor of claim 89, wherein the base has a non-circular cross-section having a plurality of slats or sidewalls. ### Claim 91 (depends on 90) The adaptor of claim 90, wherein the first engagement structure extends from one of the plurality of slats or sidewalls. ### Claim 92 (depends on 89) The adaptor of claim 89, wherein the cannula channel has a first inside cross-sectional dimension and a guidewire passage having a second inside cross-sectional dimension located proximally of the cannula channel; and wherein the first inside cross-sectional dimension is greater than the second inside cross-sectional dimension. ### Claim 93 (depends on 89) The adaptor of claim 89, wherein the cannula channel has a plurality of generally straight sides and wherein two adjacent generally straight sides are connected by an arcuate connecting portion. ### Claim 94 (depends on 89) The adaptor of claim 89, wherein the valve has a skirt extending from the wall. ### Claim 95 (depends on 94) The adaptor of claim 94, wherein the wall of the valve has a first portion with a first thickness and a second portion with a second thickness and wherein the first thickness is greater than the second thickness, measured orthogonal to a medial plane passing through the wall. ### Claim 96 (depends on 89) The adaptor of claim 89, wherein the valve is located between two internal shoulders of the base. ### Claim 97 (depends on 89) The adaptor of claim 89, wherein the tip having the tip bore section with a frustoconical shape. ### Claim 98 A guidewire dispenser comprising: a frame with a plurality of branches, including a first branch and a second branch; a connection tip at the first branch, said connection tip comprising a lumen; a guide bracket at the second branch and a lumen formed through guide bracket, said guide bracket comprising a socket; a tubing having a first free end and a second free end, said first free end located in the socket and said second free end held by a retaining clip or by socket located on a third branch; a guidewire having a length with a first free end and a second free end, said guidewire located in said tubing and extending through the socket at the second branch and into the lumen of the connection tip; and wherein the guidewire is exposed between the first branch and the second branch. ### Claim 99 (depends on 98) The guidewire dispenser of claim 98, wherein the third branch has an enclosed wall at an end of the socket. ### Claim 100 (depends on 98) The guidewire dispenser of claim 98, wherein the second branch is located higher, elevation-wise, than the first branch. ### Claim 101 (depends on 96) The guidewire dispenser of claim 96, wherein the tubing and the frame form a closed loop. ### Claim 102 (depends on 98) The guidewire dispenser of any claim 98, wherein the frame has a Y-shape configuration.