US 12,135,452 B2
Single fiber illuminated laser probe with high-angle illumination output
Chenguang Diao, Irvine, CA (US); Ronald T. Smith, Irvine, CA (US); and Alireza Mirsepassi, Irvine, CA (US)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Feb. 17, 2022, as Appl. No. 17/651,447.
Claims priority of provisional application 63/152,412, filed on Feb. 23, 2021.
Prior Publication US 2022/0268990 A1, Aug. 25, 2022
Int. Cl. A61F 9/008 (2006.01); G02B 6/02 (2006.01)
CPC G02B 6/02 (2013.01) [A61F 9/00821 (2013.01); A61F 2009/00863 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A laser probe assembly, comprising:
a probe body shaped and sized for grasping by a user; and
a probe tip housing a fiber having a proximal end face and a distal end face opposite the proximal end face, the fiber further comprising:
a core configured to transmit a laser light beam and an illumination light;
an outer cladding circumferentially surrounding the core and configured to transmit the illumination light, wherein at least a surface area of the proximal end face or the distal end face corresponding to the outer cladding is roughened; and
a coating circumferentially surrounding the outer cladding;
wherein the roughened surface area comprises at least 50% of a total area of the proximal end face or the distal end face of the fiber.