Prasad R Kilari

US Patent:

7912539, Mar 22, 2011

Filed:

Feb 2, 2009

Appl. No.:

12/363872

Inventors:

David Doty - Forestville CA, US
Feridun Ozdil - Santa Rosa CA, US
Josiah Wilcox - Santa Rosa CA, US
Robret Murray - Santa Rosa CA, US
Prasad Kilari - Santa Rosa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61N 1/30
A61B 18/18

US Classification:

604 21, 604 20, 606 2

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.

US Patent:

20070010782, Jan 11, 2007

Filed:

Jun 23, 2005

Appl. No.:

11/166850

Inventors:

David Doty - Forestville CA, US
Feridun Ozdil - Santa Rosa CA, US
Josiah Wilcox - Santa Rosa CA, US
Robert Murray - Santa Rosa CA, US
Prasad Kilari - Santa Rosa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61N 1/30
A61B 18/18

US Classification:

604020000, 606002000, 604101050

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.