CRIMPING DEVICES AND METHODS
    3.
    发明公开

    公开(公告)号:US20240216139A1

    公开(公告)日:2024-07-04

    申请号:US18607271

    申请日:2024-03-15

    Abstract: Devices and methods for crimping a prosthetic heart valve onto a delivery device are described. In some embodiments, valves are crimped over an inflatable balloon and between proximal and distal shoulders mounted on a shaft inside the balloon. Crimping methods can include multiple compression steps with the valve located in different axial positions relative to the crimping jaws at each different step. In some methods, the valve may extend partially outside of the crimping jaws during certain crimping steps, such that the crimping force is only applied to the part of the valve that is inside the jaws. Exemplary crimping devices can include two or more adjacent sets of jaws that close down to different inner diameters, such that different parts of a valve get compressed to different outer diameters at the same time during a single crimping step.

    Prosthetic heart valve
    6.
    发明授权

    公开(公告)号:US11096781B2

    公开(公告)日:2021-08-24

    申请号:US15664430

    申请日:2017-07-31

    Abstract: A prosthetic heart valve can include a radially collapsible and expandable annular frame having a plurality of struts defining openings. The prosthetic heart valve can further include a plurality of leaflets that regulate the flow of blood through the frame. The prosthetic heart valve can also include a sealing member mounted on the frame and having an inner layer and an outer layer. At least the outer layer is mounted on the outside of the frame, and the inner layer covers at least the openings in the frame between adjacent cusp portions of adjacent leaflets and the inner layer does not cover one or more openings in the frame at locations facing the outflow surfaces of the leaflets to permit retrograde blood to flow through the one or more uncovered openings in the frame and into space between the outer layer and the frame.

    Systems and methods for sizing and implanting prosthetic heart valves

    公开(公告)号:US12161551B2

    公开(公告)日:2024-12-10

    申请号:US16551634

    申请日:2019-08-26

    Abstract: A method of implanting a prosthetic heart valve includes selecting a prosthetic heart valve. The selected prosthetic heart valve has a nominal diameter that is greater than a native annulus diameter of a native annulus by up to forty percent. The method further comprises compressing the selected prosthetic heart valve to a radially compressed configuration in which the selected prosthetic heart valve has a first diameter that is less than the nominal diameter, positioning the selected prosthetic heart valve within the native annulus, and expanding the selected prosthetic heart valve from the radially compressed configuration to a radially expanded configuration in which the selected prosthetic heart valve has a second diameter which is less than the nominal diameter by up to ten percent and which is greater than the first diameter.

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