| 摘要 |
<p>This invention is an apparatus for the treatment of a thrombotic occlusion (121) in a vessel of a patient comprising a flexible elongate tubular sheath (12) having proximal (13) and distal (14) extremities. A relatively large lumen (16) defined by a thin flexible wall extends from the proximal extremity (13) to the distal extremity (14) of the tubular sheath (12) so that the distal extremity is open. An occlusion disruption device (36) is slidably and rotatably disposed in the lumen (16) in the tubular sheath (12) and having proximal (38) and distal (39) extremities. The shaft has a guide wire lumen (41) extending from the proximal extremity (38) to the distal extremity (39). Disruption elements (47) are secured to the distal extremity (39) of the shaft (37) which when rotated disrupt the thrombotic occlusion (121) by causing it to break into pieces. Suction is applied to the lumen (16) in the tubular sheath (12) to aspirate pieces into the large lumen (16) of the tubular sheath to remove them from the vessel of the patient.</p> |
