# US 11,305,068 B2 · Autoinjector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,305,068 B2 - Document ID: US11305068B2 - Status: Granted - Kind: B2 - Application number: 16/933,661 - Filed: 2020-07-20 - Published: 2020-11-05 - Granted: 2022-04-19 - Earliest claimed: 2013-07-09 - Assignees: Sanofi-Aventis Deutschland GmbH - Applicants: Sanofi-Aventis Deutschland GMBH - Inventors: Thomas Kemp - Web page: https://patentgrep.com/patent/US11305068B2 ## CPC - A61M 5/3204: {Needle cap removers, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices} - 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 5/206: {with automatic needle insertion} - A61M 5/326: {Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user} - A61M 5/5086: {for indicating if defective, used, tampered with or unsterile} - 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 2005/3247: {Means to impede repositioning of protection sleeve from needle covering to needle uncovering position} - A61M 2205/581: by audible feedback - A61M 2205/582: by tactile feedback - A61M 2205/584: having a color code - 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 An autoinjector includes a case having a rib, a needle shroud telescopically coupled to the case, a carrier slidably arranged in the case and adapted to hold a medicament container, and a collar rotatably and slidably disposed in the case and coupled to the needle shroud and the carrier. The needle shroud is movable between a first extended position, a retracted position and a locked second extended position. The carrier is movable from a first axial position to a second axial position relative to the case. The collar abuts the rib when the needle shroud is in the first extended position and the carrier is in the first axial position, and the collar disengages the rib when the needle shroud is in the retracted position and the carrier is in the second axial position. ## Claims ### Claim 1 An autoinjector comprising: a case, a needle shroud telescopically coupled to the case and movable between a first extended position and a retracted position, and a collar rotatably and slidably disposed in the case and coupled to the needle shroud, wherein the collar abuts a rib when the needle shroud is in the first extended position, wherein the collar disengages the rib when the needle shroud is in the retracted position, and wherein the collar translates distally relative to the case when the needle shroud is in the retracted position. ### Claim 2 (depends on 1) The autoinjector of claim 1, wherein the case is configured to receive a medicament container. ### Claim 3 (depends on 2) The autoinjector of claim 2, wherein the medicament container is a syringe with a needle at a distal end of the syringe. ### Claim 4 (depends on 3) The autoinjector of claim 3, wherein the syringe is arranged in the case. ### Claim 5 (depends on 2) The autoinjector of claim 2, wherein the medicament container contains a medicament. ### Claim 6 (depends on 1) The autoinjector of claim 1, wherein the autoinjector further comprises a spring configured to bias the collar relative to the case. ### Claim 7 (depends on 6) The autoinjector of claim 6, wherein the spring is proximally grounded in the case. ### Claim 8 (depends on 6) The autoinjector of claim 6, wherein the spring is proximally grounded in the case at a location proximal from the collar. ### Claim 9 (depends on 6) The autoinjector of claim 6, wherein when the needle shroud is in the first extended position, a boss of the collar abuts an angled rib of the case, wherein the collar is biased distally by a spring force of the spring, wherein the spring force, the rib, and the boss cooperate to apply a rotational and axial force to the collar. ### Claim 10 (depends on 9) The autoinjector of claim 9, wherein the needle shroud is arranged and configured to resolve at least part of the spring force. ### Claim 11 (depends on 10) The autoinjector of claim 10, wherein a shroud boss of the collar abuts the needle shroud to resolve at least part of the spring force. ### Claim 12 (depends on 11) The autoinjector of claim 11, wherein an extension of the needle shroud distally beyond the case is limited by the shroud boss abutting a transversal surface on the needle shroud. ### Claim 13 (depends on 9) The autoinjector of claim 9, wherein a movement of the needle shroud from the first extended position to the retracted position triggers an injection operation of the autoinjector. ### Claim 14 (depends on 6) The autoinjector of claim 6, wherein a cap is removably coupled to a distal end of the case. ### Claim 15 (depends on 14) The autoinjector of claim 14, wherein the first extended position and the retracted position are positions relative to the distal end of the case, wherein the needle shroud protrudes from the distal end of the case farther in the first extended position than in the retracted position. ### Claim 16 An autoinjector comprising: a case, a needle shroud telescopically coupled to the case and movable between a first extended position and a retracted position, a collar rotatably and slidably disposed in the case and coupled to the needle shroud, wherein the collar abuts a rib when the needle shroud is in the first extended position, wherein the collar disengages the rib when the needle shroud is in the retracted position, and wherein the collar translates axially relative to the case when the needle shroud is in the retracted position. ### Claim 17 (depends on 16) The autoinjector of claim 16, wherein the case is configured to receive a medicament container, wherein the medicament container contains a medicament. ### Claim 18 (depends on 16) The autoinjector of claim 16, wherein the autoinjector further comprises a spring configured to bias the collar relative to the case. ### Claim 19 (depends on 18) The autoinjector of claim 18, wherein when the needle shroud is in the first extended position, a boss of the collar abuts an angled rib of the case, wherein the collar is biased distally by a spring force of the spring, wherein the spring force, the rib, and the boss cooperate to apply a rotational and axial force to the collar. ### Claim 20 (depends on 16) The autoinjector of claim 16, wherein the first extended position and the retracted position of the needle shroud are positions relative to a distal end of the case, wherein the needle shroud protrudes from the distal end of the case farther in the first extended position than in the retracted position.