# US 10,117,994 B2 · Joining technology of a dispense interface > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,117,994 B2 - Document ID: US10117994B2 - Status: Granted - Kind: B2 - Application number: 14/114,266 - Filed: 2012-04-26 - Published: 2014-02-27 - Granted: 2018-11-06 - Earliest claimed: 2011-04-28 - Assignees: Sanofi-Aventis Deutschland GmbH - Applicants: Marc Holtwick; James Alexander Davies; Simon Lewis Bilton; David Moore; Steven Wimpenny; Christopher Nigel Langley - Inventors: Marc Holtwick; James Alexander Davies; Simon Lewis Bilton; David Moore; Steven Wimpenny; Christopher Nigel Langley - Web page: https://patentgrep.com/patent/US10117994B2 ## CPC - A61M 5/19: having more than one chamber - A61M 5/20: Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically (A61M5/142 takes precedence) - B65D 11/20: {Details of walls made of plastics material} - A61M 5/31546: {Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons} - A61M 5/344: {using additional parts, e.g. clamping rings or collets} - A61M 5/345: {Adaptors positioned between needle hub and syringe nozzle} - A61M 5/50: having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile {(retractable needles or needle protectors with means for preventing re-use A61M5/321)} - A61M 2005/2407: {from the rear} - A61M 2005/2474: {with movable piercing means, e.g. ampoule remains fixed or steady} - A61M 2005/2496: {via pivot} - A61M 2005/3128: {Incorporating one-way valves, e.g. pressure-relief or non-return valves} - A61M 2205/273: preventing reuse, e.g. of disposables - 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)} - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES ## Abstract The present invention inter alia relates to an apparatus and a method. The apparatus comprises a body part and a cover part, wherein the body part and the cover part are configured to at least partially form a fluid channel between a surface of the body part and a surface of the cover part. The surfaces of the body part and the cover part may be facing surfaces. The method comprises manufacturing the apparatus according to the present invention. ## Claims ### Claim 1 A medical device configured to eject a medicament, the medical device comprising: a body part; a first piercing needle; a second piercing needle; and a cover part; said body part comprising: a recess; and a first body part reservoir and a second body part reservoir; wherein said body part and said cover part are configured to at least partially form a fluid channel between a surface of said body part and a surface of said cover part, wherein said first piercing needle is in fluid communication with said first body part reservoir; wherein said second piercing needle is in fluid communication with said second body part reservoir; wherein said fluid channel provides a fluid connection from said first body part reservoir and/or said second body part reservoir to said recess, and wherein said surfaces of said body part and said cover part are vertically oriented such that at least part of these surfaces is parallel to a longitudinal axis of the medical device. ### Claim 2 (depends on 1) The medical device according to claim 1, wherein at least one of said first and/or second body part reservoir is configured to receive a diaphragm valve such that said diaphragm valve is at least substantially arranged in a first plane parallel to a longitudinal axis of said medical device, wherein a longitudinal axis of said diaphragm valve is at least substantially coplanar with said first plane. ### Claim 3 (depends on 1) The medical device according to claim 1, at least one of said body part and said cover part comprising: a groove arrangement, said groove arrangement arranged in said surface of said at least one of said body part and said cover part. ### Claim 4 (depends on 1) The medical device according to claim 1, wherein said body part defines an inner body of said medical device and said cover part defines a manifold of said medical device. ### Claim 5 (depends on 1) The medical device according to claim 1, wherein at least one of said body part and said cover part is formed by moulding. ### Claim 6 (depends on 1) The medical device according to claim 1, wherein at least one of said body part and said cover part is formed from a cyclo olefin polymer material. ### Claim 7 (depends on 1) The medical device according to claim 1, wherein said surfaces of said body part and said cover part are at least substantially flat at a joining area. ### Claim 8 (depends on 1) The medical device according to claim 1, wherein said surfaces of said body part and said cover part are joined by laser welding at a joining area. ### Claim 9 (depends on 8) The medical device according to claim 8, wherein one of said body part and said cover part is at least partially formed from a material at least substantially transparent to radiation of a welding laser of said laser welding. ### Claim 10 (depends on 9) The medical device according to claim 9, wherein a thickness of said one of said body part and said cover part is at least substantially uniform perpendicular to said surfaces of said body part and said cover part at said joining area. ### Claim 11 (depends on 8) The medical device according to claim 8, wherein at least one of said body part and said cover part is at least partially formed from a material doped with a laser welding additive. ### Claim 12 (depends on 1) The medical device according to claim 1, comprising: said body part defining an inner body forming said first body part reservoir and said second body part reservoir; said cover part defining a manifold positioned adjacent said inner body and comprising a fluid groove; and a lockout element. ### Claim 13 (depends on 1) The medical device according to claim 1, wherein the medical device is configured to contain a removable cartridge, the removable cartridge containing the medicament. ### Claim 14 (depends on 1) The medical device according to claim 1, wherein the diameter of the fluid channel is between 0.01 mm and 10 mm. ### Claim 15 (depends on 14) The medical device according to claim 14, wherein the diameter of the fluid channel is between 0.1 mm and 1 mm. ### Claim 16 (depends on 13) The medical device according to claim 13, wherein the first piercing needle is configured to pierce a septum of the removable cartridge to reside in fluid connection with the removable cartridge and provide a fluid communication between the removable cartridge and the first body part reservoir. ### Claim 17 (depends on 13) The medical device according to claim 13, wherein the second piercing needle is configured to pierce a septum of the removable cartridge to reside in fluid connection with the removable cartridge and provide a fluid communication between the removable cartridge and the second body part reservoir. ### Claim 18 (depends on 1) A method comprising: manufacturing a medical device according to claim 1, said manufacturing comprising at least one of: moulding at least one of said body part and said cover part of said medical device; and joining by laser welding said surfaces of said body part and said cover part at a joining area. ### Claim 19 A dispense interface attachable to a medical device configured to eject a medicament, the dispense interface comprising: a body part; a first piercing needle; a second piercing needle; and a cover part; said body part comprising: a recess; and a first body part reservoir and a second body part reservoir; wherein said body part and said cover part are configured to at least partially form a fluid channel between a surface of said body part and a surface of said cover part, wherein said first piercing needle is in fluid communication with said first body part reservoir; wherein said second piercing needle is in fluid communication with said second body part reservoir; wherein said fluid channel provides a fluid connection from said first body part reservoir and/or said second body part reservoir to said recess, and wherein said surfaces of said body part and said cover part are vertically oriented such that at least part of these surfaces is parallel to a longitudinal axis of the dispense interface. ### Claim 20 (depends on 19) The dispense interface according to claim 19, wherein at least one of said first and/or second body part reservoir is configured to receive a diaphragm valve such that said diaphragm valve is at least substantially arranged in a first plane parallel to a longitudinal axis of said dispense interface, wherein a longitudinal axis of said diaphragm valve is at least substantially coplanar with said first plane. ### Claim 21 (depends on 19) The dispense interface according to claim 19, at least one of said body part and said cover part comprising: a groove arrangement, said groove arrangement arranged in said surface of said at least one of said body part and said cover part. ### Claim 22 (depends on 19) The dispense interface according to claim 19, wherein said body part defines an inner body of said dispense interface and said cover part defines a manifold of said dispense interface. ### Claim 23 (depends on 19) The dispense interface according to claim 19, wherein at least one of said body part and said cover part is formed by moulding. ### Claim 24 (depends on 19) The dispense interface according to claim 19, wherein at least one of said body part and said cover part is formed from a cyclo olefin polymer material. ### Claim 25 (depends on 19) The dispense interface according to claim 19, wherein said surfaces of said body part and said cover part are at least substantially flat at a joining area. ### Claim 26 (depends on 19) The dispense interface according to claim 19, wherein said surfaces of said body part and said cover part are joined by laser welding at a joining area. ### Claim 27 (depends on 26) The dispense interface according to claim 26, wherein one of said body part and said cover part is at least partially formed from a material at least substantially transparent to radiation of a welding laser of said laser welding. ### Claim 28 (depends on 27) The dispense interface according to claim 27, wherein a thickness of said one of said body part and said cover part is at least substantially uniform perpendicular to said surfaces of said body part and said cover part at said joining area. ### Claim 29 (depends on 26) The dispense interface according to claim 26, wherein at least one of said body part and said cover part is at least partially formed from a material doped with a laser welding additive. ### Claim 30 (depends on 19) The dispense interface according to claim 19, comprising: said body part defining an inner body forming said first body part reservoir and said second body part reservoir; said cover part defining a manifold positioned adjacent said inner body and comprising a fluid groove; and a lockout element. ### Claim 31 (depends on 19) The dispense interface according to claim 19, wherein the first piercing needle is configured to pierce a septum of a removable cartridge contained in a medical device to reside in fluid connection with the removable cartridge and provide a fluid communication between the removable cartridge and the first body part reservoir. ### Claim 32 (depends on 19) The dispense interface according to claim 19, wherein the second piercing needle is configured to pierce a septum of a removable cartridge contained in a medical device to reside in fluid connection with the removable cartridge and provide a fluid communication between the removable cartridge and the second body part reservoir. ### Claim 33 (depends on 19) A method comprising: manufacturing a dispense interface according to claim 19, said manufacturing comprising at least one of: moulding at least one of said body part and said cover part of said dispense interface; and joining by laser welding said surfaces of said body part and said cover part at a joining area.