发明名称 |
Catheter-based, dual balloon photopolymerization system |
摘要 |
A system for applying a polymer (hydrogel) to the inner surface of a vessel by photopolymerization includes a catheter having a first inflatable member and a guidewire having a second inflatable member. The catheter has an extended tip distal to the first inflatable member that includes multiple perfusion ports. A light emission coil is disposed on the extended tip with individual coil loops interspaced with the perfusion ports. In a method, the guidewire is delivered to a treatment site within a vessel. The catheter is delivered to the treatment site over the guidewire. The inflatable members are inflated to form an enclosed treatment space within the vessel. A photoinitiator is delivered to the enclosed treatment space. Excess photoinitiator is flushed from the treatment space, and a prepolymer is delivered. The prepolymer is cured by light delivered by the light emission coil.
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申请公布号 |
US7515957(B2) |
申请公布日期 |
2009.04.07 |
申请号 |
US20050166850 |
申请日期 |
2005.06.23 |
申请人 |
MEDTRONIC VASCULAR, INC. |
发明人 |
DOTY DAVID;OZDIL FERIDUN;WILCOX JOSIAH;MURRAY ROBRET;KILARI PRASAD |
分类号 |
A61F2/958;A61N1/30;A61B18/18 |
主分类号 |
A61F2/958 |
代理机构 |
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