# US 11,027,068 B2 · Syringe support and autoinjector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,068 B2 - Document ID: US11027068B2 - Status: Granted - Kind: B2 - Application number: 15/579,052 - Filed: 2016-06-02 - Published: 2018-06-21 - Granted: 2021-06-08 - Earliest claimed: 2015-06-03 - Assignees: Sanofi-Aventis Deutschland GmbH - Applicants: Sanofi-Aventis Deutschland GmBH - Inventors: Carsten Mosebach; Thomas Mark Kemp - Web page: https://patentgrep.com/patent/US11027068B2 ## CPC - A61M 5/2033: {Spring-loaded one-shot injectors with or without automatic needle insertion (multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287)} - A61M 5/3157: {Means providing feedback signals when administration is completed (A61M5/20 takes precedence)} - A61M 5/3204: {Needle cap removers, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices} - A61M 2005/2013: {triggering of discharging means by contact of injector with patient body} - A61M 2005/208: {Release is possible only when device is pushed against the skin, e.g. using a trigger which is blocked or inactive when the device is not pushed against the skin} - A61M 2205/581: by audible feedback - 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 disclosure relates to a syringe support for supporting an axial position of a syringe relative to a housing of an autoinjector. The syringe support includes a supporting beam arranged on the syringe support and biased radially inwards. The supporting beam is adapted to axially bias the syringe in a distal direction within the housing. The disclosure further relates to an autoinjector. ## Claims ### Claim 1 A syringe support for supporting an axial position of a syringe relative to a housing of an autoinjector, the autoinjector having a proximal end that is opposite of a distal end of the autoinjector, the distal end of the autoinjector being closer to a needle of the syringe compared to the proximal end of the autoinjector, wherein the syringe support is configured to form a rear part of the autoinjector and comprises: a proximal closure portion configured to close a proximal aperture of the housing of the autoinjector; at least two rigid arms extending in a distal direction from the proximal closure portion; and a flexible supporting structure arranged distally on the at least two rigid arms, wherein the flexible supporting structure is adapted to axially bias a flange of the syringe in a distal direction within the housing of the autoinjector towards the distal end of the autoinjector. ### Claim 2 (depends on 1) The syringe support according to claim 1, wherein the flexible supporting structure is adapted to accommodate syringes having variable lengths within the housing of the autoinjector in the distal direction. ### Claim 3 (depends on 2) The syringe support according to claim 2, wherein the flexible supporting structure is adapted to compensate variations in length of the syringe of a maximum of 5%. ### Claim 4 (depends on 1) The syringe support according to claim 1, wherein the flexible supporting structure is formed as a flexure beam. ### Claim 5 (depends on 1) The syringe support according to claim 1, wherein one end of the flexible supporting structure is attached to the syringe support and an opposite end of the flexible supporting structure is a free end. ### Claim 6 (depends on 5) The syringe support according to claim 5, wherein at least two flexible supporting structures comprising the flexible supporting structure are arranged on the syringe support. ### Claim 7 (depends on 6) The syringe support according to claim 6, wherein the at least two flexible supporting structures are located distally on the syringe support. ### Claim 8 (depends on 6) The syringe support according to claim 6, wherein the at least two flexible supporting structures have different free ends wherein a first of the different free ends is bent and a second of the different free ends is straight. ### Claim 9 (depends on 1) The syringe support according to claim 1, wherein the flexible supporting structure is radially inwards bent. ### Claim 10 (depends on 1) The syringe support according to claim 1, wherein a proximal end of a respective one of the at least two rigid arms extends from the proximal closure portion and the opposite distal end of the respective one of the at least two rigid arms is a free end. ### Claim 11 (depends on 1) The syringe support according to claim 1, wherein the rear part comprises an inner stamp which is arranged between the at least two rigid arms. ### Claim 12 An autoinjector comprising: a housing comprising a syringe support for supporting an axial position of a syringe relative to the housing, the syringe support comprising a flexible supporting structure arranged on the syringe support; a drive spring which is arranged within a proximal part of the housing; and a plunger which serves for forwarding a force of the drive spring to a medicament contained in the syringe, wherein a proximal end of the autoinjector is opposite a distal end of the autoinjector, the distal end of the autoinjector being closer to a needle of the syringe compared to the proximal end of the autoinjector, wherein the flexible supporting structure is adapted to axially bias a flange of the syringe in a distal direction within the housing of the autoinjector towards the distal end. ### Claim 13 (depends on 12) The autoinjector according to claim 12, wherein: the autoinjector comprises the syringe; and the flexible supporting structure and the flange of the syringe are configured to contact one another and be pressed onto one another in an assembled state. ### Claim 14 (depends on 12) The autoinjector according to claim 12, wherein the syringe support comprises an aperture in which the flexible supporting structure is arranged. ### Claim 15 (depends on 14) The autoinjector according to claim 14, wherein the flexible supporting structure is biased radially inward from the aperture. ### Claim 16 (depends on 12) The autoinjector according to claim 12, wherein the housing comprises at least two rigid arms, each of the at least two rigid arms comprising one flexible supporting structure. ### Claim 17 (depends on 12) The autoinjector according to claim 12, wherein the housing comprises a front part and a rear part, and the flexible supporting structure is arranged distally on the rear part of the housing. ### Claim 18 (depends on 12) The autoinjector according to claim 12, wherein the housing comprises a proximal end which is larger than a proximal aperture of the housing. ### Claim 19 (depends on 12) The autoinjector according to claim 12, wherein the syringe support comprises at least two rigid arms extending in the distal direction. ### Claim 20 (depends on 12) The autoinjector according to claim 12, wherein the flexible supporting structure is adapted to accommodate syringes having variable lengths within the housing in the distal direction. ### Claim 21 (depends on 20) The autoinjector according to claim 20, wherein the flexible supporting structure is adapted to compensate variations in length of the syringe of maximum of 5%. ### Claim 22 (depends on 12) The autoinjector according to claim 12, wherein the flexible supporting structure is formed as a flexure beam. ### Claim 23 (depends on 12) The autoinjector according to claim 12, wherein one end of the flexible supporting structure is attached to the syringe support and an opposite end of the flexible supporting structure is a free end. ### Claim 24 (depends on 1) The syringe support according to claim 1, wherein, when the syringe is in an assembled state, the flexible supporting structure is one or more of: a half-arc or an arc. ### Claim 25 (depends on 12) The autoinjector according to claim 12, wherein, when the syringe is in and assembled state, the flexible supporting structure is one or more of: a half-arc or an arc. ### Claim 26 (depends on 16) The autoinjector according to claim 16, wherein a rear part of the housing comprises an inner stamp which is arranged between the at least two rigid arms and which is configured to support the arrangement of the drive spring. ### Claim 27 An autoinjector, comprising: a housing comprising a syringe support for supporting an axial position of a syringe relative to the housing, the syringe support comprising a supporting structure arranged on the syringe support; a drive spring which is arranged within a proximal part of the housing; and a plunger which serves for forwarding a force of the drive spring to a medicament contained in the syringe, wherein the supporting structure is adapted to axially bias the syringe in a distal direction within the housing of the autoinjector, and wherein a proximal end of the autoinjector is opposite to a distal end of the autoinjector, the distal end of the autoinjector being closer to a needle of the syringe compared to the proximal end of the autoinjector. ### Claim 28 (depends on 27) The autoinjector of claim 27, wherein: the supporting structure is flexible and elastically deformable in an axial direction to provide an axial bias to bias the syringe in the distal direction and wherein the syringe support comprises a proximal portion that is arranged further away from the distal end than the supporting structure, and wherein the proximal portion comprises at least two rigid arms which are rigid as compared to the supporting structure.