CATHETER WITH ACTIVE RETURN CURVE
    11.
    发明申请

    公开(公告)号:US20230114983A1

    公开(公告)日:2023-04-13

    申请号:US18064716

    申请日:2022-12-12

    Abstract: An active return curve deflectable catheter includes an elongate catheter body, a fixation member, a deflection assembly, and a pull wire. The fixation member is coupled to a distal portion of the elongate catheter body. The deflection assembly includes a hub coupled to a proximal end of the elongate catheter body, a handle, and a control member. The pull wire extends from the control member through the hub assembly to the fixation member. The elongate catheter body is configured to deflect from an initial configuration to a deflected configuration in response to a pull force applied to the pull wire by actuation of the control member in a first direction.

    Shuttle apparatus and associated systems and methods

    公开(公告)号:US11207504B2

    公开(公告)日:2021-12-28

    申请号:US15873153

    申请日:2018-01-17

    Abstract: The present disclosure is directed to a shuttle apparatus for detachably joining a catheter to a guidewire so that the joined catheter, extending alongside the guidewire, is in sliding engagement with the guidewire without extending around the guidewire. The apparatus comprises a collar member sized for mounting in sliding engagement around a length of the guidewire, the collar member having a longitudinal axis that approximately aligns along the length, when mounted thereabout, the length being defined between a proximal-most point of the guidewire and a distal point of the guidewire, the distal point being offset proximally from a distal-most point of the guidewire. The apparatus further comprises a plug member coupled to the collar member, the plug member having a longitudinal axis, and the plug member being sized to fit within an opening of the catheter for detachable engagement therewith.

    APPARATUS FOR FORMING A PASSAGEWAY IN TISSUE AND ASSOCIATED INTERVENTIONAL MEDICAL SYSTEMS

    公开(公告)号:US20180168687A1

    公开(公告)日:2018-06-21

    申请号:US15387224

    申请日:2016-12-21

    Abstract: An apparatus for forming a passageway through tissue includes a dilator mounted to a shaft, wherein the dilator includes a first portion, which has an increasing taper from a first outer diameter to a larger second outer diameter, and a second portion, which has a decreasing taper from the first portion to a distal end of the dilator, and which includes an external non-cutting thread formed along the decreasing taper. Lumens of the dilator and shaft provide a conduit for means to pierce through the tissue, for example, an elongate wire that includes a piercing tip. In some cases, the dilator first portion is expandable to, and contractible from, the larger second outer diameter, wherein the apparatus may include a spreading member configured to slide between the shaft and the first portion. The apparatus may be included in a system with an introducer sheath.

    Catheter with distal and proximal fixation members

    公开(公告)号:US11524143B2

    公开(公告)日:2022-12-13

    申请号:US16918192

    申请日:2020-07-01

    Abstract: A deflectable catheter includes an elongate member having a wall defining a longitudinally extending lumen extending from a proximal end to a distal end, a fixation member coupled to an exterior surface of the wall on a distal portion of the elongate member, and a pull wire extending through the wall of the elongate member from the proximal end of the elongate member to the fixation member. The pull wire is coupled to the fixation member and constrained along its length such that the elongate member is configured to deflect from an initial configuration to a deflected configuration in response to a pull force applied to the pull wire and actively return from the deflected configuration to the initial configuration in response to a push force applied to the pull wire.

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