| 摘要 |
<p>An atherectomy device for treating obstructions in vessels or small openings in the body, comprising a rotatable ablator tip (16) which is guided to the obstruction in a reduced diameter configuration, expanded and rotated to remove the obstruction, and contracted to remove the device from the body. The atherectomy device may be combined with a balloon (240) angioplasty device employing either a fixed or variable diameter rotatable abrasive burr and an angioplasty balloon (240) disposed on the distal end of the catheter (14) proximal to the atherectomy device. The atherectomy device may also be combined with a stent (230) implantation device employing either a fixed or variable diameter rotatable abrasive burr and a stent (230) with balloon catheter disposed on the distal end of its catheter (14) proximal to the atherectomy device.</p> |
