Delivery apparatuses for medical device implants

    公开(公告)号:US12295834B2

    公开(公告)日:2025-05-13

    申请号:US18481580

    申请日:2023-10-05

    Abstract: A delivery apparatus for a medical device implant can include an outer catheter and a flexible delivery catheter. The outer catheter can have an axially extending shaft and a first lumen extending co-axially through the axially extending shaft. The flexible delivery catheter can have an elongate shaft having a flexible section extending along a distal portion of the elongate shaft, and the flexible section of the elongate shaft can be positioned or adjusted between a first, delivery configuration and a second, activated configuration. The delivery catheter can have a pull wire extending co-axially through a second lumen axially extending through the elongate shaft. A distal end of the pull wire can be fixedly secured or attached to the distal end of the elongate shaft.

    OUTER SKIRT FOR AN EXPANDABLE PROSTHETIC HEART VALVE

    公开(公告)号:US20250073030A1

    公开(公告)日:2025-03-06

    申请号:US18952970

    申请日:2024-11-19

    Inventor: David Maimon

    Abstract: Extension members for an outer skirt of a prosthetic heart valve and methods for unfolding the extension members during radial expansion of the prosthetic heart valve are disclosed. As one example, a prosthetic heart valve comprises a frame that is radially expandable and compressible between a radially compressed configuration and a radially expanded configuration, and an outer skirt disposed around an outer surface of the frame. The outer skirt comprises one or more extension members that are movable between a first state where the one or more extension members are folded against the frame and a second state where the one or more extension members extend radially outward and away from the frame, and where the one or more extension members are in the first state when the frame is in the radially compressed configuration and in the second state when the frame is in the radially expanded configuration.

    CYLINDRICAL IMPLANT AND BALLOON
    3.
    发明申请

    公开(公告)号:US20250009506A1

    公开(公告)日:2025-01-09

    申请号:US18888516

    申请日:2024-09-18

    Abstract: Disclosed herein are embodiments of a balloon shaped to have one or more enlarged regions to selectively increase expansion forces on an implant. For example, the balloon may have a central portion that is enlarged to exert more force on the center of a stent-mounted prosthetic heart valve. This overcomes the stent-mounted prosthetic heart valve's tendency to expand with flared ends. This forms a more cylindrical or barrel shaped stent frame during expansion of the balloon—reducing or eliminating the instance wherein the cylindrical stent frame has flared ends. Alternatively, the balloon may have conical flares placed to cause or enhance flared ends of the cylindrical implant to enhance its anchoring capabilities.

    METHODS AND DEVICES FOR FOLDING LEAFLETS OF A HOST VALVE USING COMMISSURES OF A PROSTHETIC VALVE

    公开(公告)号:US20240299165A1

    公开(公告)日:2024-09-12

    申请号:US18664220

    申请日:2024-05-14

    CPC classification number: A61F2/2418 A61F2/2433 A61F2220/0016 A61F2220/0075

    Abstract: Method and devices for displacing leaflets of an existing valvular structure at an aortic valve position away from coronary ostia of an aorta are disclosed. An example method can include implanting a prosthetic heart valve within a native valve or previously implanted heart valve such that a commissure of the prosthetic heart valve is circumferentially aligned with a mid-portion of a leaflet of the native or previously implanted heart valve. The method further includes, during radially expanding the prosthetic heart valve into the native or previously implanted heart valve, applying pressure to the mid-portion of the leaflet with the commissure such that the leaflet is displaced away from the commissure and toward an inflow end of the prosthetic heart valve.

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