Mechanisms for improving the stiffness transition across a dissimilar metal weld joint

    公开(公告)号:US11129970B2

    公开(公告)日:2021-09-28

    申请号:US16042515

    申请日:2018-07-23

    Abstract: The present disclosure is directed to multi-segment intraluminal guide wires including an elongate distal portion comprising a first metallic material (e.g., nitinol), an elongate proximal portion comprising a second metallic material (e.g., stainless steel). The distal and proximal portions may be directly joined together end to end by a solid-state weld joint. A diameter of the weld region surrounding the weld joint on either side of the weld joint may be reduced (e.g., ground down) relative to the diameter of the distal and proximal portions of the guide wire on either side of the weld region. A stiffness adjusting sleeve may be disposed over the weld joint so that a transition profile of bending stiffness across the weld region is gradual, rather than abrupt across the distal portion of the guide wire to the proximal portion of the guide wire. A polymer jacket may cover the sleeve and distal portion.

    GUIDEWIRE MANAGEMENT CLIP
    24.
    发明申请

    公开(公告)号:US20210187239A1

    公开(公告)日:2021-06-24

    申请号:US17177121

    申请日:2021-02-16

    Abstract: A method for managing a guidewire in preparation for a surgical operation, comprising attaching a block of resilient polymer to a coiled tube which contains a guidewire; attaching to the block of resilient polymer a card having printed information concerning the guidewire on a planar surface of the card; removing the guidewire from the coiled tube; removing the block of resilient polymer from the coiled tube while keeping the card having printed information attached to the block of resilient polymer; coiling the guidewire into a flat spiral form; capturing, in a slot formed in the block of resilient polymer, a plurality of portions of the guidewire, which portions are adjacent to and parallel with each other, thereby maintaining the guidewire in the flat spiral form.

    Guidewire management clip
    25.
    发明授权

    公开(公告)号:US11033711B2

    公开(公告)日:2021-06-15

    申请号:US16530843

    申请日:2019-08-02

    Abstract: A method for managing a guidewire in preparation for a surgical operation, comprising attaching a block of resilient polymer to a coiled tube which contains a guidewire; attaching to the block of resilient polymer a card having printed information concerning the guidewire on a planar surface of the card; removing the guidewire from the coiled tube; removing the block of resilient polymer from the coiled tube while keeping the card having printed information attached to the block of resilient polymer; coiling the guidewire into a flat spiral form; capturing, in a slot formed in the block of resilient polymer, a plurality of portions of the guidewire, which portions are adjacent to and parallel with each other, thereby maintaining the guidewire in the flat spiral form.

    Tissue fixation devices and methods

    公开(公告)号:US10893941B2

    公开(公告)日:2021-01-19

    申请号:US16050445

    申请日:2018-07-31

    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.

    SUTURE-BASED CLOSURE WITH HEMOSTATIC TRACT PLUG

    公开(公告)号:US20210000459A1

    公开(公告)日:2021-01-07

    申请号:US17026834

    申请日:2020-09-21

    Inventor: Aaron M. Fortson

    Abstract: Devices for closing a passage through tissue communicating with a body lumen. The device may include an elongate body, a sheath disposed at the distal end of the device for disposition within a body lumen, a hollow needle disposed within a needle lumen of the body, the needle being selectively advancable through the needle lumen, a suture-anchor ejection mandrel disposed within the hollow needle that is also selectively advancable through the hollow needle, a suture-anchor and suture disposed within the hollow needle, a distal end of the suture attached to the suture anchor for ejection out the hollow needle by the mandrel. A needle guide disposed between the sheath and proximal end of the body may include a needle port through which the needle can exit. A hemostatic plug is disposed over the needle port so as to be penetrated by the needle upon exiting the port.

    System and method for annuloplasty
    30.
    发明授权

    公开(公告)号:US10856985B2

    公开(公告)日:2020-12-08

    申请号:US15820374

    申请日:2017-11-21

    Inventor: Michael F. Wei

    Abstract: A device for adjusting a shape of a coronary sinus in a heart of a patient, the device comprising a flexible tube having: an outer wall extending between a proximal end and a distal end; a first bore extending from the proximal end to the distal end; a proximal flange attached to the proximal end; a distal flange attached to the distal end; wherein, the outer wall includes at least one accordion-like hinge region.

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