# US 10,946,142 B2 · Adapter element for fastening a needle tip to a syringe base body > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,946,142 B2 - Document ID: US10946142B2 - Status: Granted - Kind: B2 - Application number: 16/109,549 - Filed: 2018-08-22 - Published: 2019-02-28 - Granted: 2021-03-16 - Earliest claimed: 2017-08-24 - Assignees: Gerresheimer Regensburg GmbH - Applicants: Gerresheimer Regensburg GmbH - Inventors: Michael Dehling - Web page: https://patentgrep.com/patent/US10946142B2 ## CPC - A61M 5/3134: {characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula} - A61M 5/3293: {characterised by features of the needle hub} - A61M 39/10: Tube connectors or tube couplings - A61M 2039/1077: {Adapters, e.g. couplings adapting a connector to one or several other connectors} - A61M 2207/00: Methods of manufacture, assembly or production - 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 The invention relates to an adapter element for fastening a needle element to a syringe base body, the adapter element having a base body which is configured and provided for receiving the needle element, the base body having at least one through-opening for passing the needle element through and for fixing it, and the base body being configured and provided for being fastened to the syringe base body. ## Claims ### Claim 1 An adapter element for fastening a needle element and/or a cannula to a syringe base body, comprising: a base body configured and provided for receiving the needle element, wherein the base body has at least one through-opening for passing the needle element through and for fixing the needle element, wherein the base body is configured and provided for being fastened to the syringe base body, wherein the base body comprises a hollow body and at least one viewing opening extending through a wall element of the hollow body, in such a way that it is possible to see into an internal volume of the hollow body freely from the outside at least in part, wherein the needle element passes through a bottom face of the hollow body, through the internal volume of the hollow body that is viewable through the at least one viewing opening, and through a top face of the hollow body; and wherein the at least one viewing opening is arranged along an axial direction between the bottom face of the hollow body and the top face of the hollow body. ### Claim 2 (depends on 1) The adapter element according to claim 1, wherein the wall element laterally delimits the base body in the radial direction (R). ### Claim 3 (depends on 1) The adapter element according to claim 1, wherein there is a cap region adjacent to the top face of the hollow body, a cap wall of the cap region having the through-opening. ### Claim 4 (depends on 1) The adapter element according to claim 1, wherein an opening cross section of the through-opening corresponds at least to a needle cross section. ### Claim 5 (depends on 1) The adapter element according to claim 1, wherein an opening cross section of the viewing opening is at least 1.5 times as large as a needle cross section. ### Claim 6 (depends on 1) An adapter system for fastening a needle element to a syringe base body, comprising an adapter element according to claim 1, a needle element, the needle element being slid through the through-opening in the adapter element as far as a predeterminable length, in such a way that a needle tip region protrudes out of the adapter element. ### Claim 7 (depends on 2) The adapter element of claim 2, where the hollow body is a hollow cylinder. ### Claim 8 (depends on 3) The adapter element according to claim 3, wherein the cap wall is mechanically rigidly connected to the wall element. ### Claim 9 (depends on 3) The adapter element according to claim 3, wherein the cap wall is a one-piece element together with the wall element. ### Claim 10 (depends on 9) The adapter element according to claim 9, wherein the cap wall is an injection molded element together with the wall element. ### Claim 11 (depends on 5) The adapter element of claim 5, where the opening cross section of the viewing opening is at least 2 times as large as a needle cross section. ### Claim 12 (depends on 1) A method for producing a syringe base body, comprising the steps of: providing at least one adapter system according to claim 1 for fastening the needle element to a syringe base body, providing the syringe base body, and fastening the adapter system to the syringe base body by at least one connection process. ### Claim 13 (depends on 12) The method of claim 12, wherein the connection process is a gluing process. ### Claim 14 (depends on 12) The method of claim 12, wherein the connection process is an injection molding process.