TISSUE-REMOVING CATHETER WITH GUIDEWIRE ISOLATION LINER

    公开(公告)号:US20220370095A1

    公开(公告)日:2022-11-24

    申请号:US17661669

    申请日:2022-05-02

    IPC分类号: A61B17/3207

    摘要: The present disclosure provides a tissue-removing catheter that includes an elongate body, a tissue-removing element, and an inner liner. The elongate body has proximal and distal end portions spaced apart from one another along an axis and is sized and shaped to be received in a body lumen. The tissue-removing element rotates by the elongate body to remove tissue. The inner liner is received within the elongate body, defines a guidewire lumen, and isolates an interior of the guidewire lumen from the elongate body and tissue-removing element, preventing torsional force from transferring from the elongate body and tissue-removing element to the interior of the guidewire lumen. The inner liner includes a distal end margin that may have a construction different from a construction of a second portion of the inner liner proximal of the distal end margin. The distal end margin may be more flexible than the second portion.

    TISSUE-REMOVING CATHETER
    2.
    发明申请

    公开(公告)号:US20210177455A1

    公开(公告)日:2021-06-17

    申请号:US17153079

    申请日:2021-01-20

    IPC分类号: A61B17/3207

    摘要: A tissue-removing catheter for removing tissue in a body lumen includes a tube extending axially along the catheter. A junction box housing is located at a distal end of the tube. An elongate body extends distally from the junction box housing. The elongate body is sized and shaped to be received in the body lumen. A gear assembly is disposed in the junction box housing. The gear assembly engages the elongate body for rotating the elongate body. A tissue-removing element is mounted on a distal end portion of the elongate body. The tissue-removing element is configured to remove the tissue as the tissue-removing element is rotated by the elongate body within the body lumen.

    TISSUE-REMOVING CATHETER INCLUDING TURBINE
    3.
    发明申请

    公开(公告)号:US20200261112A1

    公开(公告)日:2020-08-20

    申请号:US16794545

    申请日:2020-02-19

    IPC分类号: A61B17/3207 A61M25/09

    摘要: A tissue-removing catheter for removing tissue in a body lumen includes an elongate body having an axis and proximal and distal end portions spaced apart from one another along the axis. A turbine is fixed to the elongate body and is disposed at an intermediate position between the proximal and distal end portions of the elongate body. A rotatable tissue-removing element is at the distal end portion of the elongate body and is operatively coupled to the turbine such that the turbine imparts rotation of the tissue-removing element. The tissue-removing element removes the tissue from the body lumen as the tissue-removing element is rotated by the turbine.

    TISSUE-REMOVING CATHETER WITH A COUPLED INNER LINER

    公开(公告)号:US20220313307A1

    公开(公告)日:2022-10-06

    申请号:US17654230

    申请日:2022-03-09

    IPC分类号: A61B17/3207

    摘要: A tissue-removing catheter for removing tissue in a body lumen includes an elongate body having an axis. A handle is mounted to a proximal end portion of the elongate body. A tissue-removing element is mounted on a distal end portion of the elongate body. An inner liner is received within the elongate body and defines a guidewire lumen. An advancer is mounted on the handle and is movable relative to the housing. The inner liner is coupled to the advancer at a proximal end portion of the inner liner such that movement of the advancer causes a corresponding movement of the inner liner to exert a push force on the tissue-removing element to advance the tissue-removing element and a pull force on the tissue-removing element to retract the tissue-removing element for moving the tissue-removing element relative to the handle.

    Rapid exchange balloon catheter
    9.
    发明授权

    公开(公告)号:US11116939B2

    公开(公告)日:2021-09-14

    申请号:US16292977

    申请日:2019-03-05

    摘要: A balloon catheter including a catheter shaft, a balloon and a support assembly. The catheter shaft defines an internal shoulder and carries the balloon. The support assembly includes a first member and a second member. The second member defines opposing, leading and trailing ends, and is arranged over the first member such that the leading end is distal the trailing end. The leading end is free of direct physical attachment to the first member. The support assembly extends within a lumen of the catheter shaft and the leading end bears against the internal shoulder. A pushing force applied at a proximal region of the catheter shaft is transferred onto the internal shoulder via the support assembly. The support assembly is simple and inexpensive. Further, the leading end of the second member is transversely moveable relative to the first member, thereby minimizing possible kinking of the first member.

    Tissue-removing catheter with guidewire isolation liner

    公开(公告)号:US11051842B2

    公开(公告)日:2021-07-06

    申请号:US15970748

    申请日:2018-05-03

    摘要: A tissue-removing catheter for removing tissue in a body lumen includes an elongate body and a tissue-removing element mounted on a distal end portion of the elongate body. The tissue-removing element is configured to remove the tissue as the tissue-removing element is rotated by the elongate body within the body lumen. An inner liner is received within the elongate body and coupled to a handle at a proximal end of the inner liner. The inner liner defines a guidewire lumen. The inner liner isolates an interior of the guidewire lumen from the elongate body and tissue-removing element such that rotational and torsional forces are not transferred from the elongate body and tissue-removing element to the interior of the guidewire lumen when the elongate body and tissue-removing element are rotated during operation of the tissue-removing catheter.