| 摘要 |
An atherectomy system (10) for cutting, ingesting and removing an obstruction (12) from within a patient's artery (11), comprising a flexible guide-wire (25) insertable into the artery, a flexible rotary-catheter (13) rotatably disposed and slidable over the flexible guide-wire, a blade (16) forming a distal end of the flexible rotary- catheter having teeth (18) on its periphery which are bent inward, a continuous passage (23) for ingesting the cut obstruction material (12') between the flexible rotary- catheter and the flexible guide-wire, means (19) at the proximal end of the flexible rotary-catheter for rotating it and positive displacement pump means (17) connected to the continuous passage to pull the cut obstruction material proximally. |
