Patent ID: 9547123
Date: 2017-01-17
CPC Classifications: A61B,A61M,G02B

Claim:
1. A method of treating a hollow anatomical structure, the method comprising: inserting a sheath with a distal end into the hollow anatomical structure; inserting an optical fiber into the sheath; positioning a tip of the optical fiber at a firing position anywhere from 2-20 mm proximal of the distal end via a position limiter configured to limit distal movement of the tip of the optical fiber relative to the distal end of the sheath such that the tip of the optical fiber cannot extend distally farther than the firing position, wherein the position limiter comprises a tube at least partially surrounding the optical fiber; emitting light energy from the tip of the optical fiber while the tip is disposed in the sheath proximal of the distal end; and withdrawing the sheath and optical fiber along the hollow anatomical structure while emitting the light energy.