	US 12,440,271 B2
	Device and method for dilation of a tubular anatomical structure
Brant D. Watson, Miami, FL (US); and Henry W Van Vurst, IV, Fort Lauderdale, FL (US)
Assigned to ENDO UV TECH, Fort Lauderdale, FL (US)
Filed by ENDO UV TECH, Fort Lauderdale, FL (US)
Filed on Sep. 30, 2024, as Appl. No. 18/902,700.
Application 18/902,700 is a division of application No. 18/189,183, filed on Mar. 23, 2023, granted, now 12,133,681.
Application 17/871,670 is a division of application No. 17/508,833, filed on Oct. 22, 2021, granted, now 11,446,089, issued on Sep. 20, 2022.
Application 18/189,183 is a continuation in part of application No. 17/871,670, filed on Jul. 22, 2022, granted, now 11,963,720, issued on Apr. 23, 2024.
Claims priority of provisional application 63/322,821, filed on Mar. 23, 2022.
Prior Publication US 2025/0017654 A1, Jan. 16, 2025
Int. Cl. A61B 18/24 (2006.01); A61F 2/95 (2013.01); A61M 25/10 (2013.01); A61B 17/22 (2006.01); A61B 18/00 (2006.01); A61B 18/22 (2006.01)

CPC A61B 18/245 (2013.01) [A61F 2/95 (2013.01); A61M 25/104 (2013.01); A61B 2017/22068 (2013.01); A61B 2017/22079 (2013.01); A61B 2018/0041 (2013.01); A61B 2018/2261 (2013.01); A61F 2002/9528 (2013.01); A61M 2205/053 (2013.01)]

6 Claims

1. A combination guidewire and optical fiber capable of carrying UV laser light, wherein said guidewire is formed as a hollow tube and has disposed within the hollow tube the optical fiber for carrying UV laser light from a UV laser light source emitting UV laser light at a wavelength of about 300-400 nm and an intensity of about 3-20 Watts/cm², wherein the optical fiber has a distal end having a configuration selected from the group consisting of an external cone, an inverted cone, and a flat distal end comprising concentric circular grooves etched into the flat distal end, wherein the laser light is refractively emitted from the distal end of the optical fiber as a conical ring beam to impinge on a tubular anatomical structure.