知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.019 秒)

    SYSTEM, DEVICE, AND METHOD FOR INTERRUPTED DUAL ACTION (SANDING AND CUTTING) FORCES WITH CONTINUAL MACERATION AND ASPIRATION
    3.
    发明申请
    SYSTEM, DEVICE, AND METHOD FOR INTERRUPTED DUAL ACTION (SANDING AND CUTTING) FORCES WITH CONTINUAL MACERATION AND ASPIRATION 有权

    公开(公告)号：US20220354531A1

    公开(公告)日：2022-11-10

    申请号：US17870113

    申请日：2022-07-21

    申请人： Cardiovascular Systems, Inc.

    发明人： Victor L. Schoenle ,  Joseph P. Higgins

    IPC分类号： A61B17/3207

    摘要： A rotational atherectomy device includes a drive shaft, a cutter mechanism coupled to the drive shaft and configured to cut occlusive material from a lesion, and a multi-stage macerator coupled to the drive shaft and configured to macerate cut occlusive material into a fine slurry. Successive stages of the multi-stage macerator macerate the cut occlusive material into successively smaller particles, which are moved proximally through a lumen of a sheath of the device that surrounds the drive shaft proximal to the macerator. The device may include a movable cutter mechanism guard that is passively rotatable between a first position in which it covers the cutter mechanism and a second position in which it exposes the cutter mechanism. One or more features of the device may limit a depth to which the cutter mechanism is able to cut the occlusive material to reduce a likelihood of undesirable tissue dissection.

    Spin-to-open atherectomy device with electric motor control
    5.
    发明授权
    Spin-to-open atherectomy device with electric motor control 有权

    公开(公告)号：US10052122B2

    公开(公告)日：2018-08-21

    申请号：US14597932

    申请日：2015-01-15

    申请人： Cardiovascular Systems, Inc.

    发明人： Joseph P. Higgins ,  Victor L. Schoenle ,  Michael J. Grace ,  Matthew D. Cambronne ,  Robert E. Kohler

    IPC分类号： A61B17/3207 ,  A61B17/00 ,  A61B17/22 ,  A61B17/32 ,  A61B90/00

    摘要： A rotational atherectomy system is disclosed, comprising: an elongated, flexible spin-to-open drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient; a concentric or eccentric abrasive element, preferably a solid crown, attached to the drive shaft proximate the distal end of the drive shaft; an electric motor rotatably coupled to the proximal end of the drive shaft, the electric motor being capable of rotating the drive shaft in a spin-to-open direction; and control electronics for monitoring and controlling the rotation of the electric motor. When an obstruction at the distal end is detected by the applied torque and/or current reaching a predetermined maximum allowed level and with the drive shaft opened to a maximum allowed outer diameter, power to the motor is eliminated.

    SPIN-TO-OPEN ATHERECTOMY DEVICE WITH ELECTRIC MOTOR CONTROL
    10.
    发明申请
    SPIN-TO-OPEN ATHERECTOMY DEVICE WITH ELECTRIC MOTOR CONTROL 审中-公开
    具有电动马达控制的旋转开启的自适应装置

    公开(公告)号：US20150201956A1

    公开(公告)日：2015-07-23

    申请号：US14597932

    申请日：2015-01-15

    申请人： Cardiovascular Systems, Inc.

    发明人： Joseph P. Higgins ,  Victor L. Schoenle ,  Michael J. Grace ,  Matthew D. Cambronne ,  Robert E. Kohler

    IPC分类号： A61B17/3207

    CPC分类号： A61B17/3207 ,  A61B17/320758 ,  A61B2017/00017 ,  A61B2017/00123 ,  A61B2017/00199 ,  A61B2017/00398 ,  A61B2017/22045 ,  A61B2017/320004 ,  A61B2017/320032 ,  A61B2017/320766 ,  A61B2090/066 ,  A61B2090/0801

    摘要： A rotational atherectomy system is disclosed, comprising: an elongated, flexible spin-to-open drive shaft having a distal end for insertion into a vasculature of a patient and having a proximal end opposite the distal end remaining outside the vasculature of the patient; a concentric or eccentric abrasive element, preferably a solid crown, attached to the drive shaft proximate the distal end of the drive shaft; an electric motor rotatably coupled to the proximal end of the drive shaft, the electric motor being capable of rotating the drive shaft in a spin-to-open direction; and control electronics for monitoring and controlling the rotation of the electric motor. When an obstruction at the distal end is detected by the applied torque and/or current reaching a predetermined maximum allowed level and with the drive shaft opened to a maximum allowed outer diameter, power to the motor is eliminated.

    摘要翻译： 公开了一种旋转粥样斑块切除术系统，包括：细长的，柔性的旋转到开放的驱动轴，其具有用于插入患者脉管系统的远端，并且具有与远端相对的近端，其保持在患者的脉管外部; 在驱动轴的远端附近附接到驱动轴的同心或偏心的研磨元件，优选为实心冠; 电动机，其可旋转地联接到所述驱动轴的近端，所述电动机能够以旋转方向旋转所述驱动轴; 以及用于监测和控制电动机的旋转的控制电子装置。 当通过施加的扭矩和/或电流达到预定的最大允许水平并且驱动轴打开到最大允许外径来检测远端处的障碍物时，消除对电动机的电力。