# US 10,864,329 B2 · Medical injector cap remover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,329 B2 - Document ID: US10864329B2 - Status: Granted - Kind: B2 - Application number: 15/995,500 - Filed: 2018-06-01 - Published: 2018-12-06 - Granted: 2020-12-15 - Earliest claimed: 2017-06-02 - Assignees: Becton Dickinson France - Applicants: Becton Dickinson France - Inventors: Guillaume Grunhut; Lionel Maritan; Julien Singer - Web page: https://patentgrep.com/patent/US10864329B2 ## CPC - A61M 5/3204: {Needle cap removers, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices} - A61M 5/3129: {Syringe barrels (A61M5/3205, A61M5/50 take precedence)} - A61M 5/3213: {Caps placed axially onto the needle, e.g. equipped with finger protection guards (axially-extensible protective sleeves A61M5/3243)} - A61M 5/3205: {Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles (for sharps A61B50/362; disintegrating apparatus in general B02C, e.g. B02C19/0075, B23H9/001; disposal of medical waste in general B09B3/00; receptacles for refuse disposal in general B65F1/00)} - A61M 2005/3215: {Tools enabling the cap placement} - A61M 2205/586: Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users - 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 cap remover for removing a cap covering a needle of a medical injector includes a body having an insertion portion at its proximal end configured to at least partially accommodate the cap, and a grabbing portion at its distal end having an internal cavity which includes an extraction member having a series of laminas extending radially and inwardly from a ring. ## Claims ### Claim 1 A cap remover for removing a protective cap covering a needle of a medical injector, the cap remover comprising: an outer body comprising: a proximal end and a distal end; an insertion portion defining a cavity configured to guide and center the protective cap from the proximal end of the outer body toward a central opening sized and shaped to receive the protective cap; a grabbing portion comprising at least an outer grabbing surface configured to be grabbed by a user; and a distal plug engageable with the grabbing portion, wherein the distal plug includes a circular inner wall extending in a proximal direction toward the insertion portion when the distal plug is engaged with the grabbing portion; and an extraction member positioned within the outer body between a distal end of the insertion portion and a proximal end of the circular inner wall of the distal plug, the extraction member comprising: an annular ring coupled to the outer body; and a plurality of flexible metallic laminas extending radially and inwardly from the annular ring toward the central opening, the plurality of flexible metallic laminas defining a frusto-conical envelope between the annular ring and the central opening. ### Claim 2 (depends on 1) The cap remover according to claim 1, wherein the plurality of flexible metallic laminas are configured: to flex outwardly and slide on the protective cap when the protective cap is inserted into the cap remover; and to stick into the protective cap when the protective cap is removed from the needle. ### Claim 3 (depends on 1) The cap remover according to claim 1, wherein each flexible metallic lamina includes a Young's modulus of between 190 GPa and 230 GPa. ### Claim 4 (depends on 1) The cap remover according to claim 1, wherein the annular ring defines a transversal plane, each flexible metallic lamina forming an angle of between 15° and 60° with the transversal plane. ### Claim 5 (depends on 1) The cap remover according to claim 1, wherein the plurality of flexible metallic lamina of the extraction member comprises between eight and twelve flexible metallic laminas. ### Claim 6 (depends on 1) The cap remover according to claim 1, wherein each of the plurality of flexible metallic laminas comprises a sharp tip. ### Claim 7 (depends on 1) The cap remover according to claim 1, wherein the extraction member is made of stainless steel. ### Claim 8 (depends on 1) The cap remover according to claim 1, wherein the plurality of flexible metallic laminas are configured to exert on the protective cap a clamping force of between 20 N and 300 N. ### Claim 9 (depends on 1) The cap remover according to claim 1, wherein the plurality of flexible metallic laminas are sized so that, before insertion of the protective cap, the central opening presents a diameter comprised of between 78% and 95% of a diameter of the protective cap to remove. ### Claim 10 (depends on 1) The cap remover according to claim 1, wherein the central opening is located distally from the annular ring. ### Claim 11 (depends on 1) The cap remover according to claim 1, wherein the outer grabbing surface is hemispherical. ### Claim 12 (depends on 1) The cap remover according to claim 1, wherein the grabbing portion comprises two opposite flanges extending outwardly from an outer surface of the grabbing portion. ### Claim 13 (depends on 1) A medical injector comprising: an injector comprising a barrel; a needle in communication with the barrel; a protective cap covering the needle; and a cap remover according to claim 1, the protective cap configured to be inserted in the central opening of the cap remover. ### Claim 14 (depends on 13) The medical injector according to claim 13, wherein each of the plurality of flexible metallic laminas include a hardness at least equal to 1 times a hardness of the protective cap. ### Claim 15 (depends on 13) The medical injector according to claim 13, wherein each of the plurality of flexible metallic laminas include a Young's modulus at least equal to 60 times a Young's modulus of the protective cap.