# US 2014/0194850 A1 · Accessory for a syringe > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194850 A1 - Document ID: US20140194850A1 - Status: Published application - Kind: A1 - Application number: 14/127,290 - Filed: 2012-07-02 - Published: 2014-07-10 - Earliest claimed: 2011-07-04 - Assignees: Anteis S.A. - Inventors: Cyrille Vinchon - Web page: https://patentgrep.com/patent/US20140194850A1 ## CPC - A61M 5/344: {using additional parts, e.g. clamping rings or collets} - A61M 5/28: Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle - A61M 2005/3139: {Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips} - F04C 2270/041: Controlled or regulated - 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)} - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS ## Abstract An accessory for a syringe is disclosed, including a body with a proximal end having at least one zone for application of an injection force in order to apply a force for discharging a product from the syringe, and a distal end having a bearing element for bearing against a needle mounted on the mouth of the syringe with a force that includes a radial component perpendicular to the longitudinal axis of the syringe and directed towards the centre of the syringe. An assembly including such an accessory and a syringe is also disclosed. ## Claims ### Claim 1 Accessory for a syringe comprising: a body including a proximal end having at least one zone for application of a holding force in reaction to an injection force applied to the piston of the syringe, when the accessory is mounted onto the syringe, to discharge a product outside of said syringe; and a distal end comprising a bearing element for bearing against a needle mounted on the nozzle of the syringe, when the accessory is mounted onto the syringe, the bearing element being arranged for bearing against the needle with a force comprising a radial component perpendicular to the longitudinal axis of the syringe and directed towards the center of said syringe, wherein the bearing element comprises a tapered element matching a hub of the needle and is arranged to bear on the hub at the level of the junction between said hub and the nozzle of the syringe. ### Claim 2 (depends on 1) Accessory according to claim 1, wherein said proximal end comprises a housing surrounding at least part of the syringe over its entire periphery. ### Claim 3 (depends on 1) Accessory according to claim 1, wherein said proximal end comprises fastening means for fastening said accessory to a handpiece of an assisted injection device. ### Claim at position 4 -5. (canceled) ### Claim 6 (depends on 1) Accessory according to claim 1, wherein the bearing element makes it possible to bear on the needle over at least half of the circumference of the hub of said needle. ### Claim 7 (depends on 1) Accessory according to claim 1, wherein the bearing element makes it possible to bear on the needle over at least two thirds of the circumference of the hub of said needle. ### Claim 8 (depends on 1) Accessory according to claim 1, wherein said distal end comprises an opening on its circumference allowing the needle to be inserted into said distal end in a direction perpendicular to the longitudinal axis of the syringe. ### Claim 9 (canceled) ### Claim 10 Assembly comprising: a syringe comprising a reservoir for containing a product to be injected, and a piston for discharging the product out of the reservoir; an accessory for a syringe comprising a body with a proximal end, which comprises at least one zone for application of a holding force in reaction to an injection force applied on the piston of the syringe for discharging a product from said syringe, wherein the body of the accessory further comprises a distal end comprising a bearing element arranged for bearing against a needle mounted on the nozzle of the syringe, the bearing element being arranged for bearing against said needle with a force comprising a radial component perpendicular to the longitudinal axis of the syringe and directed towards the center of said syringe, wherein said bearing element comprises a tapered element matching a hub of the needle and that is arranged to bear on the hub at the level of the junction between said hub and the nozzle of the syringe. ### Claim 11 (depends on 10) Assembly according to claim 10, wherein the accessory is fastened to the syringe by said proximal end. ### Claim 12 (depends on 10) Assembly according to claim 10, further comprising an assisted injection device, wherein said assisted injection device comprises a handpiece for receiving the syringe and the accessory. ### Claim 13 (depends on 10) Assembly according to claim 10, wherein said zone for application of a holding force is configured for its mechanical coupling to said handpiece. ### Claim 14 (depends on 1) Method for preparing a syringe with the aim of an injection, comprising: at least partial insertion of a syringe into an accessory according to claim 1; alignment of the longitudinal axis of the syringe and of the longitudinal axis of the accessory; and translation of the syringe relative to the accessory in order to lock said accessory and said syringe in an injection position. ### Claim 15 (depends on 14) Method according to claim 14, further comprising fastening said accessory to a handpiece of an assisted injection device. ### Claim 16 (depends on 14) Method according to claim 14, further comprising applying a holding force to said zone for application of a holding force in reaction to an injection force applied on the piston of the syringe for discharging a product from said syringe. ### Claim 17 (depends on 1) Method for preparing a syringe for an injection, said method comprising: the coupling of a fine needle on a syringe and the locking of the needle on the syringe by way of an accessory according to claim 1 in order to minimize the pain of a patient during the injection at a usual speed of a product having a high viscosity by way of said syringe. ### Claim 18 (depends on 17) Method according to claim 17, further comprising fastening said syringe and said accessory on an assisted injection device. ### Claim 19 (depends on 1) Accessory according to claim 1, wherein the distal end of the body comprises a housing for receiving at least part of a luer lock placed on the syringe without said luer lock being in contact with said distal end when the bearing element bears against the needle.