Patent ID: 8864754
Filing Date: 2014-10-21
Classification: A61B,G02B

Abstract:
1. An endovascular laser treatment device for causing closure of a blood vessel comprising: an optical fiber adapted to be inserted into a blood vessel and having a core through which a laser light travels, the core having a proximal portion directly surrounded by a first cladding layer and a distal portion disposed distally of the proximal portion and directly surrounded by a second cladding layer that is different than the first cladding layer; an inner sleeve arranged around the distal portion of the core such that distal ends of the inner sleeve and the optical fiber core together form a single enlarged light emitting surface, wherein the inner sleeve is index matched with the core, the first cladding layer positioned proximally of the second cladding layer, the second cladding layer extending proximally from the enlarged light emitting face; and an outer sleeve arranged around the inner sleeve to position the light emitting surface away from an inner wall of the blood vessel.