Patent ID: 9149333
Filing Date: 2015-10-06
Classification: A61B

Abstract:
1. A device for endoluminal treatment of a blood vessel, comprising: a flexible waveguide defining an elongated axis, a proximal end optically connectable to a source of radiation, and a distal end receivable within the blood vessel; wherein the distal end of said flexible waveguide includes at least two, conically-shaped radiation emitting surfaces configured to emit radiation reflected laterally with respect to the elongated axis of the waveguide and around the entire circumference of the waveguide onto a portion of a surrounding wall of said blood vessel in an axially extending annular beam; wherein a first one of said at least two, conically-shaped radiation emitting surfaces comprises a conical surface, and a second one of said at least two, conically-shaped radiation emitting surfaces comprises a forward truncated conical section and a backward truncated conical section interfacing the forward truncated conical section; and a cap that is fixedly secured and sealed to the waveguide, the cap enclosing said at least two conically-shaped radiation emitting surfaces therein and defining a gas-waveguide interface for each of said at least two radiation emitting surfaces; wherein radiation is emitted annularly with respect to the elongated axis of the waveguide through said cap.