PROSTHETIC VALVE DOCKING DEVICE
    1.
    发明公开

    公开(公告)号:US20230255754A1

    公开(公告)日:2023-08-17

    申请号:US18305136

    申请日:2023-04-21

    IPC分类号: A61F2/24

    摘要: Certain examples of the disclosure concern a docking device for securing a prosthetic valve at a native valve. The docking device includes a coil having a plurality of helical turns when deployed at the native valve, an expandable member extending radially outwardly from the coil and being movable between a radially-compressed/axially-elongated state and a radially-expanded/axially-foreshortened state, and a cover member surrounding an outer surface of the expandable member. A distal end portion of the cover member and a distal end portion of the expandable member are fixedly coupled to the coil via a distal suture including a plurality of knots and a plurality of wraps. A proximal end portion of the expandable member is fixedly coupled to a proximal end portion of the cover member. The proximal end portion of the expandable member and the proximal end portion of the cover member are axially movable relative to the coil.

    PROSTHETIC VALVE DOCKING DEVICE
    7.
    发明公开

    公开(公告)号:US20240173121A1

    公开(公告)日:2024-05-30

    申请号:US18432653

    申请日:2024-02-05

    发明人: Jocelyn Chau

    IPC分类号: A61F2/24 A61F2/88

    摘要: Certain examples of the disclosure concern a method for assembling a cover assembly for a docking device configured to receive a prosthetic valve. The method includes braiding a first layer over a mandrel, braiding a second layer over the first layer to form a multi-layer structure, shape-setting the multi-layer structure so that the multi-layer structure conforms to a shape of the mandrel, and laser cutting the multi-layer structure to form a proximal end and a distal end. The laser cutting can fuse the second layer to the first layer at the proximal end and the distal end.

    PROSTHETIC HEART VALVES WITH HERMETIC LAYERS OR VALVULAR STRUCTURES TO REDUCE THROMBOSIS RISK

    公开(公告)号:US20230270540A1

    公开(公告)日:2023-08-31

    申请号:US18314759

    申请日:2023-05-09

    IPC分类号: A61F2/24

    摘要: A prosthetic heart valve can have one or more hermetic layers. The inner skirt and/or the outer skirt can comprise one or more hermetic layers, or the entire valve frame can be encapsulated within one or more hermetic layers. Each hermetic layer can be substantially nonporous or can have pores therein that are sized to discourage cellular ingrowth. The hermetic layer can prevent ingrowth of surrounding native tissue, thereby reducing pannus formation on the prosthetic leaflets. Alternatively or additionally, shapes of the leaflets of the valvular structure of the prosthetic valve and/or the coupling of the leaflets to the valve frame can be selected to avoid the incidence of stasis when implanted at a relatively low pressure gradient hemodynamic location. Such a prosthetic heart valve may reduce the risk of thrombosis.