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.

    PROSTHETIC HEART VALVE FRAMES WITH RADIALLY OFFSET COMMISSURE PORTIONS

    公开(公告)号:US20240148497A1

    公开(公告)日:2024-05-09

    申请号:US18408174

    申请日:2024-01-09

    CPC classification number: A61F2/2418 A61F2/2433 A61F2/2436 A61F2220/0025

    Abstract: Described herein are annular frames for prosthetic heart valves that include commissure portions that are radially offset and/or are radially flexible relative to the rest of the frame. The commissure portions can extend radially outwardly from the rest of the frame such that they are positioned at a greater radius than the adjacent struts of the frame. The commissure portions can be cantilevered from the frame, such that only one axial end of the commissure portion is attached to the rest of the frame, allowing the commissure portions to flex radially inwardly and outwardly relative to the rest of the frame. Lateral arms can also couple upper ends of the commissure portions to adjacent apices to pull them in at larger diameters. The radial position of the commissure portions relative to the rest of the frame can affect the positioning of the leaflets and the effectiveness of the valve.

    PROSTHETIC HEART VALVES WITH RATCHETING LOCK MECHANISMS AND METHODS FOR FABRICATION AND USE

    公开(公告)号:US20240000565A1

    公开(公告)日:2024-01-04

    申请号:US18369734

    申请日:2023-09-18

    Abstract: A prosthetic heart valve has a frame and a valvular structure supported by the frame. The frame has cells distributed circumferentially around the frame and formed by struts. The struts includes a support arm, which has a fixed end portion extending from an axial end portion of the frame and a free end portion disposed toward an opposite axial end portion of the frame relative to the fixed end portion. The fixed end portion has a rotational position that is rotationally offset relate to that of the free end portion. When the frame is in a radially-compressed configuration, a second locking member of the struts is spaced apart from a first locking member of the free end portion of the support arm. When the frame is in the radially-expanded configuration, the second locking member engages the first locking member, thereby restricting the frame from moving from the radially-expanded configuration.

    PROSTHETIC HEART VALVE
    18.
    发明公开

    公开(公告)号:US20240207046A1

    公开(公告)日:2024-06-27

    申请号:US18522551

    申请日:2023-11-29

    CPC classification number: A61F2/2418 A61F2220/0008 A61F2220/0025

    Abstract: A prosthetic heart valve comprises a radially expandable frame comprising an outflow end and an inflow end, and a plurality of valve leaflets disposed within and coupled to the frame. Each leaflet comprises a main body having an outflow edge portion and an inflow edge portion, wherein the leaflets are configured to move between an open state and a closed state in which the outflow edge portions coapt with each other and block the flow of blood through the frame from the outlet end to the inlet end, wherein the inflow edge portion of each leaflet includes a movable portion that can move radially inwardly when the leaflets move to the closed state to assist with the coaptation of the outflow edge portions of the leaflets and radially outwardly when the leaflets move to the open state.

    PROSTHETIC HEART VALVE
    19.
    发明公开

    公开(公告)号:US20240180696A1

    公开(公告)日:2024-06-06

    申请号:US18402589

    申请日:2024-01-02

    CPC classification number: A61F2/2418 A61F2/243 A61F2/2436

    Abstract: A prosthetic valve includes an annular frame and a valvular structure mounted within the annular frame. The valvular structure comprises a plurality of leaflets defining a plurality of commissures coupled to the annular frame. Each leaflet includes a leaflet free edge that is offset in a downstream direction from the commissures by side edges that are not attached to the frame. A material portion of the leaflet disposed between the side edges contributes a material slack that extends a radial reach of the leaflet free edge for coaptation. The prosthetic valve can be releasably coupled to a delivery device to form a delivery apparatus. The prosthetic valve can be delivered to a selected implantation site by the delivery apparatus and released at the implantation site by a handle of the delivery device.

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