# US 9,039,672 B2 · Coupling component for transmitting medical substances > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,672 B2 - Document ID: US9039672B2 - Status: Granted - Kind: B2 - Application number: 13/974,380 - Filed: 2013-08-23 - Published: 2014-01-02 - Granted: 2015-05-26 - Earliest claimed: 2002-07-09 - Assignees: Carmel Pharma AB - Applicants: Carmel Pharma AB - Inventors: Claes Wallen - Web page: https://patentgrep.com/patent/US9039672B2 ## CPC - A61J 1/20: Arrangements for transferring {or mixing} fluids, e.g. from vial to syringe - A61J 1/1406: {Septums, pierceable membranes} - A61J 1/2089: {Containers or vials which are to be joined to each other in order to mix their contents (combinations of vial and syringe for mixing their contents A61J1/2096)} - A61M 5/1409: {in series, e.g. reconstitution systems with a first substance passing through a container holding a second substance} - A61J 1/10: Bag-type containers - A61J 1/1475: {Inlet or outlet ports} - A61J 1/1481: {with connection retaining means, e.g. thread or snap-fit} - A61J 1/1487: {with friction fit, e.g. connecting tubes directly to a protruding port} - A61J 1/201: {having one piercing end} - A61J 1/2027: {having frangible parts} - A61J 1/2055: {having gripping means} - A61M 5/162: Needle sets, i.e. connections by puncture between reservoir and tube - A61M 39/14: for connecting tubes having sealed ends {(needle sets A61M5/162; having valves closing automatically on disconnection of line A61M39/26)} - A61M 39/221: {Frangible or pierceable closures within tubing (A61M39/14 takes precedence; frangible closures for containers A61J1/14)} - A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE - 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 coupling component is disclosed for transmitting medical substances, comprising two channels for conveyance of medical substances in two substantially opposite directions and a means for releasable connection to a second coupling component having a further channel for creating a coupling. The connecting means is a thread. A method for conveying medical substances to and from a container is also disclosed. ## Claims ### Claim 1 A method for conveyance of medical fluids to an infusion bag, comprising the steps of: connecting a first coupling component having two channels for conveyance of medical fluids in two opposite directions to a second coupling component of the infusion bag, wherein said first coupling component is provided with an opening for injection of a medical substance to a first of said two channels, wherein said opening is closed with a first piercable flexible membrane for abutting cooperation with a second flexible membrane of an injection component that is connectable to said opening, said second coupling component having a third channel with a lumen, said third channel is provided with a breakable fluid barrier that is arranged to remain intact during connection and upon complete engagement of the first coupling component to the second coupling component, wherein the breakable fluid barrier is contained within the lumen of the third channel; connecting the first coupling component and the second coupling component of the infusion bag allowing said second flexible membrane to be held against said first flexible membrane with a pressure exceeding the yield point of the first membrane and second membrane, and opening the infusion bag towards said two channels after the first coupling component and the infusion bag have been connected to each other, for enabling conveyance of a medical fluid into the infusion bag via one first of said two channels. ### Claim 2 (depends on 1) A method according to claim 1, whereby opening the infusion bag towards said two channels comprises breaking the breakable fluid barrier plug. ### Claim 3 (depends on 1) A method according to claim 1, further comprising opening the infusion bag towards said two channels by a member arranged in the infusion bag. ### Claim 4 (depends on 1) A method according to claim 1, further comprising injecting a medical fluid to the infusion bag via a first of said two channels. ### Claim 5 (depends on 4) A method according to claim 4, further comprising injecting the medical fluid via the opening arranged in the first coupling component. ### Claim 6 (depends on 1) A method according to claim 1, further comprising holding said second flexible membrane against said first flexible membrane with a pressure exceeding 150 kPa.