Catheter-Based, Dual Balloon Photopolymerization System
0 Assignments
0 Petitions
Accused Products
Abstract
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.
-
Citations
27 Claims
-
1-19. -19. (canceled)
-
20. A method of treating a vascular condition, the method comprising:
-
delivering a guidewire to a treatment site within a vessel, the guidewire including a first expandable member; delivering a catheter over the guidewire to the treatment site, the catheter including a second expandable member; expanding the first and second expandable members to form an enclosed treatment space within the vessel; delivering a fluid to the treatment space; and exposing the treatment space to light. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
-
Specification