Delivery device for prosthetic heart valve with capsule adjustment device

    公开(公告)号:US12004951B2

    公开(公告)日:2024-06-11

    申请号:US18165268

    申请日:2023-02-06

    发明人: Jeffrey Sandstrom

    IPC分类号: A61F2/24 A61F2/95

    摘要: A delivery device for percutaneously delivering a stented prosthetic heart includes a sheath, a handle, and adjustment device including a fine adjustment mechanism, and an outer stability shaft. The sheath defines a lumen and is configured to compressively constrain the stented prosthetic heart valve. The handle is coupled to the proximal portion of the sheath and includes an actuator mechanism coupled to a proximal portion of the sheath that is configured to selectively move the sheath relative to the housing to release the stented prosthetic heat valve. The adjustment device is coupled to the handle and includes an adjustment lumen through which the sheath and the handle slidably extend. The outer stability shaft is coupled to the adjustment device. The fine adjustment mechanism is configured to selectively move the handle and the sheath relative to the adjustment device and the outer stability shaft.

    Radial expansion and contraction features of medical devices

    公开(公告)号:US11998465B2

    公开(公告)日:2024-06-04

    申请号:US17345959

    申请日:2021-06-11

    发明人: Paul Sherburne

    摘要: This disclosure concerns medical devices, such as catheters and implantable devices, having radially adjustable features. More particularly, the catheters and implantable devices can radially expand and contract to perform various functions within the body. Expansion and contraction can be performed by a radially adjustable structure mounted on the medical device. For example, a medical device can include an body configured for in vivo introduction, a strip attached to the body and rolled into a ring such that layers of the strip radially overlap each other, and at least one motor actuatable by electrical energy to move the radially overlapping layers of the strip relative to one another and change a diameter of the ring and the body.

    Stent removal snare and dilator
    40.
    发明授权

    公开(公告)号:US11992427B2

    公开(公告)日:2024-05-28

    申请号:US17566807

    申请日:2021-12-31

    IPC分类号: A61F2/95 A61B17/50

    摘要: A tool for removing non-visually, urinary tract stents placed within the urinary tract of a patient, comprising a distal end, a longitudinally-extending stem, and a handle. The distal end has a conical head with a groove for hooking a stent, stent string or similar stent configuration. The snare head may have a channel for advancing the tool through a urethra over a guide wire. The snare head has a narrow conical front end for dilating urethral strictures. The stem connects the snare head to the snare handle and is made to be flexible or bend on encountering resistance.