| 摘要 |
The present invention provides a PreStent comprising a sheath and frame designed for preparing a vessel passageway for the subsequent delivery of a stent. The PreStent can be self-expanding or balloon-expandable. Also provided is a supporting system for delivering the PreStent safely. The supporting system includes a delivery catheter, one or more occlusion balloon, optionally one or more dilation balloon, and a retention sheath for the self-expanding type of PreStent. The PreStent of the present invention is flexible for use with a variety of stent and guidewire models such that it can easily be incorporated with existing devices to improve stenting procedures. |
