Intravascular stent having high fatigue performance

    公开(公告)号:US11426296B2

    公开(公告)日:2022-08-30

    申请号:US16669206

    申请日:2019-10-30

    Abstract: This invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more links. A Y-shaped member is comprised of a U-shaped member and a link having a curved portion and a straight portion to improve the flexibility and thereby improve the fatigue performance of the Y-link junction.

    Through tip for catheter
    306.
    发明授权

    公开(公告)号:US11383070B2

    公开(公告)日:2022-07-12

    申请号:US16565086

    申请日:2019-09-09

    Abstract: Catheter having an elongate tubular shaft including an inflation lumen and a guidewire lumen defined therein, the guidewire lumen extending along at least a distal length of an inner tubular member of the elongate tubular shaft. The catheter includes a distal tip member having a proximal end and a distal end, wherein the distal tip member is monolithic and the proximal end of the distal tip member is secured to a distal end of the inner tubular member. The catheter includes a balloon having a proximal portion and a distal portion, the proximal portion of the balloon sealingly coupled to the distal portion of the elongate tubular shaft. The distal portion of the balloon is sealingly coupled to the distal tip member and the balloon defines an inner chamber in communication with the inflation lumen, wherein the proximal end of the distal tip member is disposed within the inner chamber.

    GRASPING FOR TISSUE REPAIR
    308.
    发明申请

    公开(公告)号:US20220104819A1

    公开(公告)日:2022-04-07

    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.

    Grasping for tissue repair
    309.
    发明授权

    公开(公告)号:US11229435B2

    公开(公告)日:2022-01-25

    申请号:US16241647

    申请日:2019-01-07

    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.

    NEEDLE HARVESTING DEVICES, SYSTEMS AND METHODS

    公开(公告)号:US20210378667A1

    公开(公告)日:2021-12-09

    申请号:US17411378

    申请日:2021-08-25

    Abstract: A suturing system including an elongate distal member and an elongate proximal member proximal the elongate distal member, the elongate proximal member having a lumen. A needle deployment actuator extends to the elongate distal member and is configured to initiate proximal movement of a needle toward an opening of the elongate proximal member. A guide is disposed within the elongate proximal member, a perimeter of the guide forming a plurality of needle receiving gaps that, when viewed in cross-section, are circumferentially spaced about the deployment actuator with a portion of the guide disposed between adjacent needle receiving gaps extending outwardly towards a wall of the lumen of the elongate proximal member.

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