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    • 5. 发明申请
    • MEDICAL DEVICE WITH FLUID ACIVATED ACTUATION MECHANISM
    • WO2022162103A1
    • 2022-08-04
    • PCT/EP2022/051968
    • 2022-01-27
    • NOVO NORDISK A/S
    • SIGURDARSON, Nökkvi, Steinn
    • A61M31/00A61J3/07A61M5/20A61M37/00
    • A capsule device (100), comprising: a) a capsule housing (110, 120) having proximal and distal ends and defining a main axis, the capsule housing comprising a plurality of retainer portions (113a) distributed around the main axis, and b) an actuation mechanism (140, 150) operable between a pre-actuation configuration and an actuating configuration, wherein the actuation mechanism (140, 150) comprises: b1) an actuation member (150) configured for axial distal movement, the actuation member (150) comprising a base portion (151) and a plurality of radially deflectable latch arms (153) extending proximally therefrom, wherein each latch arm (153) defines a radially inwards facing latch surface (153b) being inclined with respect to the axis and a radially outwards facing latch surface (153a) in retaining engagement with a respective retainer portion (113a) of the capsule housing (110, 120), b2) a drive spring (140) exerting mechanical load onto the actuation member (150) for driving the actuation member axially in the distal direction, and b3) a dissolvable latch support (160) having radially outwards facing surfaces (163b) being inclined relative to the axis, wherein the dissolvable latch support (160) is arranged centrally on-axis and wherein the plurality of radially deflectable latch arms (163) are distributed around the main axis so that each latch arm (163) is releasably retained radially between a respective one of said inclined outwards facing surfaces (163b) of the dissolvable latch support (160) and a respective one the retainer portions (113a).
    • 6. 发明申请
    • MEDICAL DEVICE WITH IMPROVED ACTUATION MECHANISM
    • WO2022162102A1
    • 2022-08-04
    • PCT/EP2022/051967
    • 2022-01-27
    • NOVO NORDISK A/S
    • SIGURDARSON, Nökkvi, SteinnHOUGAARD, Finn
    • A61J3/07A61M31/00
    • A capsule device (100) suitable for ingestion for travelling into a lumen of the gastrointestinal tract of a patient, the lumen having a lumen wall, wherein the capsule device (100) is configured as a self-righting capsule comprising: a) a capsule housing (110, 120) comprising a compartment and an exterior tissue engaging surface (123) defining an exit opening (124) leading from the compartment to the capsule exterior, b) a tissue penetrating member (130) arranged along an axis and configured to be advanced axially from a first position in the compartment through the exit opening (124) and into the lumen wall at a target location, and c) an actuator (140, 150) for coupling to the tissue penetrating member (130), the actuator (140, 150) configured, upon actuation, to move from the a first configuration to a second configuration thereby advancing the tissue penetrating member (130) axially from the first position and into the lumen wall, wherein the actuator (140, 150) comprises a spring (140) formed as a tapered helical tension spring, the spring (140) having a wide first end coupled to the capsule housing (110, 120) and a narrow second end that couples to the tissue penetrating member (130), wherein, in the first configuration, accumulated tension in the spring (140) is maintained, and wherein, upon actuation, accumulated tension in the spring (140) is released thereby moving the actuator (140, 150) towards the second configuration.