Methods and systems for delivering an implant using a planetary gear actuation assembly

    公开(公告)号:US09724224B2

    公开(公告)日:2017-08-08

    申请号:US14932875

    申请日:2015-11-04

    摘要: 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.

    OPERATING HANDLE AND STENT DELIVERY SYSTEM
    42.
    发明申请

    公开(公告)号:US20170216063A1

    公开(公告)日:2017-08-03

    申请号:US15490213

    申请日:2017-04-18

    发明人: Sadao BESSHO

    IPC分类号: A61F2/95 A61F2/82

    摘要: Provided is an operation handle capable of shortening an entire length and enhancing operability. The slide mechanism (S) comprises a rotating body (4) that rotates in conjunction with a rotation of the thumbwheel (3) as the rotating wheel and a slide body (5) that engages with the rotating body (4), slides. The slide body (5) is configured by a 1st divided body (6) formed with a 1st engaging part (6A) engaged with the rotating body (4) in the initial state, and a 2nd divided body (7) formed with a 2nd engaging part (7A) engaged with the rotating body (4) in the initial state and not engaged with the rotating body (4) in the position where the rotating body (4) and the 1st engaging part (6A) is not engaged with each other. A power transmitting means (T) that transmits a driving force of the 1st divided body (6) to the 2nd divided body (7), to integrally slide the 1st divided body (6) and the 2nd divided body (7), is provided. When the engagement between the rotating body (4) and the 1st engaging part (6A) is not engaged and the 1st divided body (6) is stopped, the rotating body (4) is engaged with the 2nd engaging part (7A) and the 2nd divided body (7) slides to the proximal side (A).

    Stent delivery system
    43.
    发明授权

    公开(公告)号:US09707115B2

    公开(公告)日:2017-07-18

    申请号:US14286356

    申请日:2014-05-23

    IPC分类号: A61F2/06 A61F2/966 A61F2/95

    摘要: In an operating unit constituting a stent delivery system, a protector for preventing an inner tube body from deforming is provided between a rack member and a containing groove guiding the rack member (so as to be movable. The protector, for example is a bellows shaped cylinder so as to be freely extendable and covers an outer circumferential side of the inner tube body. At the time of releasing a stent, the protector is compressed due to the movement of the rack member toward the proximal side and the inner tube body is prevented from deforming due to the protector, because an inner circumferential surface of the protector comes into contact with the inner tube body.