| 摘要 |
The present invention provides a balloon catheter system comprising one or more conduits to which are attached an inner compliant balloon having a non-helical shape in its deflated state, said balloon being enclosed by an outer non-compliant or semi-compliant balloon, wherein the inner balloon is constructed such that upon inflation, said inner balloon is capable of adopting a spiral or helical conformation. The present invention also provides methods for using said balloon catheter system.
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