| 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 distal end of the blade is located adjacent the distal end of the balloon. In operation, the balloon/blade combination is advance into the vasculature and positioned proximal 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 proximal direction. The device is then retracted, distally, to incise the stenosis.
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