US 12,383,755 B2
Light irradiation device
Yuki Kodama, Tokyo (JP); Masaki Kuwatani, Hokkaido (JP); Hajime Hirata, Hokkaido (JP); Mikako Ogawa, Hokkaido (JP); and Kohei Nakajima, Hokkaido (JP)
Assigned to JAPAN LIFELINE CO., LTD., Tokyo (JP); and NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Hokkaido (JP)
Appl. No. 18/032,678
Filed by JAPAN LIFELINE CO., LTD., Tokyo (JP); and NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Hokkaido (JP)
PCT Filed Dec. 1, 2020, PCT No. PCT/JP2020/044595
§ 371(c)(1), (2) Date Apr. 19, 2023,
PCT Pub. No. WO2022/118360, PCT Pub. Date Jun. 9, 2022.
Prior Publication US 2023/0390572 A1, Dec. 7, 2023
Int. Cl. A61N 5/06 (2006.01)
CPC A61N 5/0603 (2013.01) [A61N 5/062 (2013.01); A61N 2005/0655 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A light irradiation device comprising:
a tube including a light emitting portion and inserted into a body,
wherein
the light emitting portion includes a central lumen extending along a center axis of the tube, at least one surrounding lumen arranged around the central lumen, and at least one light emitting element disposed inside the at least one surrounding lumen, the central lumen is open on a distal end side of the tube, and
the at least one surrounding lumen is closed on the distal end side of the tube.