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    Methods and systems for delivering an implant using a planetary gear actuation assembly
    52.
    发明授权
    Methods and systems for delivering an implant using a planetary gear actuation assembly 有权

    公开(公告)号：US10149778B2

    公开(公告)日：2018-12-11

    申请号：US14932848

    申请日：2015-11-04

    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.

    Inventor： Matthew J. Gillick ,  Michael L. Green

    IPC: A61F2/966 ,  F16H19/04 ,  F16H57/02 ,  A61F2/95

    Abstract: A system for delivering an implant including a handle, a trigger, and an actuation assembly. The actuation assembly can include a planet carrier, at least one planet gear operatively coupled to the planet carrier, a sun gear shaft operatively engaged with the planet gear, a ring gear operatively engaged with the planet gear, a first clutch driver, and a second clutch driver. The actuation assembly can be configured to displace the outer tubular member in the proximal direction a distance (d) relative to the handle and to separately move the inner shaft member distally a distance (x) relative to the handle upon deployment of the trigger from a first position to a second position, and move the inner shaft member proximally a distance (y) relative to the handle with no displacement of the outer tubular member upon return of the trigger from the second position to the first position.

    MECHANISMS FOR IMPROVING THE STIFFNESS TRANSITION ACROSS A DISSIMILAR METAL WELD JOINT
    55.
    发明申请
    MECHANISMS FOR IMPROVING THE STIFFNESS TRANSITION ACROSS A DISSIMILAR METAL WELD JOINT 审中-公开

    公开(公告)号：US20180326187A1

    公开(公告)日：2018-11-15

    申请号：US16042515

    申请日：2018-07-23

    Applicant: Abbott Cardiovascular Systems, Inc.

    Inventor： John A. Simpson ,  Bruce M. Wilson

    IPC: A61M25/09

    CPC classification number: A61M25/09 ,  A61M2025/09091 ,  A61M2025/09108 ,  A61M2025/09133 ,  A61M2025/0915

    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.

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