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    Rotational atherectomy device with fluid inflatable support elements supported by fluid bearings
    31.
    发明授权
    Rotational atherectomy device with fluid inflatable support elements supported by fluid bearings 有权
    旋转粥样斑块切除装置，具有由流体轴承支撑的流体充气支撑元件

    公开(公告)号：US08500764B2

    公开(公告)日：2013-08-06

    申请号：US13412212

    申请日：2012-03-05

    Applicant: Leonid Shturman

    Inventor： Leonid Shturman

    IPC: A61B17/22

    CPC classification number: A61B17/320758 ,  A61B17/320725 ,  A61B2017/22051 ,  A61B2017/22052 ,  A61B2017/22054 ,  A61B2017/22068 ,  A61B2017/22069 ,  A61B2017/320004 ,  A61B2017/320008 ,  A61B2017/320766

    Abstract: A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having an open distal end. The drive shaft comprising a fluid impermeable wall, an abrasive element mounted to the drive shaft proximal to and spaced away from its distal end, the fluid impermeable wall being formed from a torque transmitting coil and at least one fluid impermeable membrane which define a lumen for the antegrade flow of pressurized fluid through the drive shaft and into a distal fluid inflatable support element to inflate said fluid inflatable support element. The distal fluid inflatable support element is located at the distal end of the drive shaft and has an outer wall comprising an outflow opening.

    Abstract translation: 公开了一种用于从患者的血管移除狭窄组织的旋转粥样斑块切除装置。 该装置包括具有敞开的远端的可旋转的，柔性的，中空的驱动轴。 所述驱动轴包括流体不可渗透壁，研磨元件安装到所述驱动轴上并且远离其远端，所述流体不可渗透壁由扭矩传递线圈和至少一个流体不可渗透膜形成，所述至少一个流体不可渗透膜限定用于 所述加压流体通过所述驱动轴并进入远端流体可充气支撑元件的顺行流动，以使所述流体可充气支撑元件膨胀。 远端液体充气支撑元件位于驱动轴的远端，并且具有包括流出开口的外壁。

    ATHERECTOMY DEVICES AND METHODS
    40.
    发明申请
    ATHERECTOMY DEVICES AND METHODS 有权

    公开(公告)号：US20230116977A1

    公开(公告)日：2023-04-20

    申请号：US17954038

    申请日：2022-09-27

    Applicant: Cardio Flow, Inc.

    Inventor： Paul Joseph Robinson ,  Cassandra Ann Piippo Svendsen ,  Albert Selden Benjamin ,  Charles Anthony Plowe

    IPC: A61B17/3207

    Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that spirals around the drive shaft in a direction that is opposite to the wind direction of filars of the drive shaft, and opposite to the direction of rotation. In some embodiments, a concentric abrasive tip member is affixed to and extends distally from a distal-most end of the drive shaft

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