| 摘要 |
A device for incising a stenosis in the aortic valve of a patient includes an elongated balloon catheter, with at least one straight blade mounted on the balloon. Specifically, the blade is coplanar with the axis of the catheter, and the proximal end of the blade is located adjacent the proximal end of the balloon. In operation, the balloon/blade combination is advanced into the vasculature and positioned distal to the stenosis to be incised. The balloon is then inflated. With this inflation, the blade is inclined relative to the axis of the catheter with an increasing distance between the blade and the axis in a distal direction. The device is then retracted, proximally, to incise the stenosis.
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