Medicament Delivery Device and Actuation Mechanism for a Drug Delivery Device

    公开(公告)号:US20240350733A1

    公开(公告)日:2024-10-24

    申请号:US18758133

    申请日:2024-06-28

    发明人: Stephan Riedel

    IPC分类号: A61M5/20 A61M5/32

    摘要: Described is an actuation mechanism for a medicament delivery device having a needle with a distal tip. The actuation mechanism comprises an outer sleeve telescopically relative to the delivery device and an inner sleeve telescopically arranged relative to the outer sleeve. The outer sleeve is axially translatable relative to the delivery device, and the inner sleeve is axially translatable relative to the outer sleeve. In a first state, the inner sleeve protrudes distally from the outer sleeve and the outer sleeve protrudes distally from the delivery device. In a second state, the inner sleeve is contained within the outer sleeve. Movement of the outer sleeve proximally relative to the delivery device in the second state initiates delivery of a medicament in the delivery device.

    Auto-Injector
    10.
    发明公开
    Auto-Injector 审中-公开

    公开(公告)号:US20240238523A1

    公开(公告)日:2024-07-18

    申请号:US18622358

    申请日:2024-03-29

    IPC分类号: A61M5/20 A61M5/50 A61M5/32

    摘要: According to the invention, an auto-injector for administering a dose of a liquid medicament (M) comprises of a substantially cylindrical housing arranged to contain a pre-filled syringe filled with the medicament (M), a needle shroud slibably arranged with respect to the housing and adapted to rest on the skin of a patient receiving an injection, a releasable drive means arranged within the housing that is capable of, upon release, translating the needle shroud in a proximal direction (P) towards a safe position (PS) and a rotating collar rotatably arranged within the housing. The needle shroud in the safe position (PS) surrounds the injection needle after the injection has been carried out. The rotating collar engages the needle shroud in a manner that forces the rotating collar to rotate within the housing when the needle shroud is translated in the proximal direction (P).