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    Laser ablation catheter
    61.
    发明授权
    Laser ablation catheter 有权

    公开(公告)号：US10799293B2

    公开(公告)日：2020-10-13

    申请号：US15281981

    申请日：2016-09-30

    Applicant: The Spectranetics Corporation

    Inventor： Brandon Thomas Hendrick ,  Kenneth P. Grace

    IPC: A61B18/24 ,  A61B18/00 ,  A61B18/22

    Abstract: A system and devices for ablation and removal of occlusions from blood vessels is provided. Laser cutting systems and mechanical cutting systems are provided in catheter devices, the cutting systems operable to ablate, cut, dislodge, and otherwise remove occlusions within a blood vessel that may limit or prevent proper circulation. Catheter systems comprise distal end features adapted to cut and remove at least portions of an occlusion that generally correspond to dimensions of an inner lumen of a catheter.

    Retractable blade for lead removal device
    63.
    发明授权
    Retractable blade for lead removal device 有权

    公开(公告)号：US10219819B2

    公开(公告)日：2019-03-05

    申请号：US15498165

    申请日：2017-04-26

    Applicant: The Spectranetics Corporation

    Inventor： Dustin L. Grace ,  Kenneth P. Grace

    IPC: A61B17/32 ,  A61N1/05 ,  A61B17/3205 ,  A61B17/00

    Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the tissue separating device includes a handle, an elongate sheath and a circular cutting blade that may extend from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The tissue separating device includes a cam mechanism at the distal portion of the sheath that allows the user of the device to more accurately control the extension and rotation of the cutting blade upon being actuated by the handle.

    Convertible optical and pressure wave ablation system and method
    64.
    发明授权
    Convertible optical and pressure wave ablation system and method 有权

    公开(公告)号：US10149718B2

    公开(公告)日：2018-12-11

    申请号：US14735946

    申请日：2015-06-10

    Applicant: The Spectranetics Corporation

    Inventor： Richard Fiser ,  Kenneth P. Grace

    IPC: A61B18/24 ,  A61B18/00 ,  A61B18/22 ,  A61B18/26 ,  A61N7/02

    Abstract: The present disclosure relates to a system and method for providing laser energy through a catheter towards a second end portion of the catheter. Based on a characteristic of the laser energy multiple types of ablation therapy may be implemented. A first ablation therapy is directed at the target site when the laser energy at the second end portion of the laser energy delivery system has a first characteristic. A second ablation therapy is directed at the target site when the laser energy at the second end portion of the laser energy delivery system has a second characteristic. The first ablation therapy may be an optical ablation therapy wherein the laser energy is directed at the target site as optical energy and the second ablation therapy may be a pressure wave ablation therapy wherein pressure waves are directed at the target site as pressure wave energy.

    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT USING LASER CUT HYPOTUBES
    65.
    发明申请
    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT USING LASER CUT HYPOTUBES 审中-公开

    公开(公告)号：US20180271551A1

    公开(公告)日：2018-09-27

    申请号：US15992016

    申请日：2018-05-29

    Applicant: The Spectranetics Corporation

    Inventor： Kenneth P. Grace ,  Weston H. Lee ,  Brian E. Kagarise ,  Robert Carver

    IPC: A61B17/3205 ,  A61B17/50 ,  A61B17/34 ,  A61B17/32 ,  A61N1/05 ,  A61B17/3207 ,  A61B17/00

    CPC classification number: A61B17/3205 ,  A61B17/32 ,  A61B17/32002 ,  A61B17/32053 ,  A61B17/320758 ,  A61B17/3468 ,  A61B17/50 ,  A61B2017/00986 ,  A61B2017/320032 ,  A61N1/0573 ,  A61N2001/0578

    Abstract: Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the surgical device includes a handle, an elongate inner sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade and a separate cam mechanism in the tip of outer sheath assembly that imparts and controls the extension and retraction of the blade. The barrel cam cylinder and cam mechanism cooperate to cause the blade to rotate in a first direction and extend from and retract in the outer sheath due to a first actuation of the handle and to rotate in a second direction and extend and retract in the outer sheath due to a second actuation of the handle. The inner sheath and outer sheath are constructed of laser-cut hypotubes, thereby allowing the surgical device, particularly the sheath assembly, to have a smaller profile for navigating smaller sized vasculature.

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