Tissue Fixation Devices And Methods

    公开(公告)号:US20250064457A1

    公开(公告)日:2025-02-27

    申请号:US18947063

    申请日:2024-11-14

    Inventor: Michael F. Wei

    Abstract: The present disclosure describes tissue gripping devices, systems, and methods for gripping mitral valve tissue during treatment of a mitral valve and while a tissue fixation device is implanted in the mitral valve. The tissue gripping device includes a flexible member and one or more tissue gripping members coupled to one or more arms of the flexible member. The flexible member is formed from a shape-memory material, such as nitinol, and the tissue gripping member(s) are formed from a material that is more rigid than the shape-memory material. The tissue gripping member(s) are attached to the flexible member by threading or looping suture lines around and/or through the tissue gripping member(s) and the flexible member and/or by applying a cover material to the tissue gripping device to hold the tissue gripping member(s) against the flexible member.

    INTRAVASCULAR STENT
    6.
    发明申请

    公开(公告)号:US20240382324A1

    公开(公告)日:2024-11-21

    申请号:US18633933

    申请日:2024-04-12

    Abstract: An expandable stent for implantation in a body lumen, such as an artery, consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The radial strength of the stent is enhanced by selectively increasing the width of the crests by offsetting the center points of inner arcs relative to outer arcs.

    Grasping for tissue repair
    7.
    发明授权

    公开(公告)号:US12137909B2

    公开(公告)日:2024-11-12

    申请号:US17554859

    申请日:2021-12-17

    Inventor: Michael F. Wei

    Abstract: The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.

    System For Fixation of Leaflets Of A Heart Valve

    公开(公告)号:US20240366223A1

    公开(公告)日:2024-11-07

    申请号:US18664390

    申请日:2024-05-15

    Abstract: The invention provides devices, systems and methods for tissue approximation and repair at treatment sites. The devices, systems and methods of the invention will find use in a variety of therapeutic procedures, including endovascular, minimally-invasive, and open surgical procedures, and can be used in various anatomical regions, including the abdomen, thorax, cardiovascular system, heart, intestinal tract, stomach, urinary tract, bladder, lung, and other organs, vessels, and tissues. The invention is particularly useful in those procedures requiring minimally-invasive or endovascular access to remote tissue locations, where the instruments utilized must negotiate long, narrow, and tortuous pathways to the treatment site. In addition, many of the devices and systems of the invention are adapted to be reversible and removable from the patient at any point without interference with or trauma to internal tissues.

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