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    • 8. 发明申请
    • ENDARTERECTOMY APPARATUS AND METHOD
    • ENDARTERECTOMOMY设备和方法
    • WO0135839A2
    • 2001-05-25
    • PCT/US0031615
    • 2000-11-16
    • ACUMEN VASCULAR INCBAKER STEVE GDEATON DAVID HLEARY JAMES J
    • BAKER STEVE GDEATON DAVID HLEARY JAMES J
    • A61B17/22
    • A61B17/3207A61B17/32037A61B17/320708A61B17/320725A61B2017/320012A61B2017/320733A61B2017/320741
    • Improved apparatus and methods are described for performing endarterectomy remotely via intraluminal techniques. A flexible blade dissector has a curved, diamond-shaped flexible dissecting blade mounted on a catheter shaft. The distal edge of the flexible dissecting blade is configured to form a dissecting edge for separating an atheromatous plaque from the medial layer of an artery wall. The flexible blade dissector may incorporate a steering mechanism to direct the flexible dissecting blade along a preferred path within the arterial wall. The endarterectomy method is performed by making an incision into an artery wall and initiating a plane of separation between an atherosclerotic plaque and the medial layer of the artery wall, inserting the flexible blade dissector into the plane of separation and advancing the flexible dissecting blade to longitudinally extend the plane of separation. Optionally, a second flexible blade dissector with a wider dissecting blade may be inserted coaxially over the catheter shaft of the first flexible blade dissector and advanced to laterally expand the plane of separation. Once the plaque has been freed from the entire inner circumference of the arterial lumen, the plane of separation is terminated on the distal and proximal ends, and the plaque is removed from the arterial lumen.
    • 描述了用于通过腔内技术远程执行内膜切除术的改进的装置和方法。 柔性刀片剥离器具有安装在导管轴上的弯曲的钻石形柔性解剖刀片。 柔性解剖刀片的远侧边缘构造成形成用于从动脉壁的内侧层分离动脉粥样硬化斑块的解剖边缘。 柔性刀片解剖器可以包括转向机构以沿着动脉壁内的优选路径引导柔性解剖刀片。 通过将动脉壁切开并在动脉粥样硬化斑块和动脉壁的内侧之间开始分离平面,将柔性刮板分离器插入分离平面并将柔性解剖刀推向纵向,从而进行内膜切除术 延长分离平面。 可选地,具有较宽解剖刀片的第二柔性刀片剥离器可以同轴地插入到第一柔性刀片解剖器的导管轴上并且前进以横向扩展分离平面。 一旦斑块已经从动脉腔的整个内圆周中释放出来,则在远端和近端终止分离平面,并且从动脉管腔移除斑块。