CPC A61B 18/24 (2013.01) [A61B 2018/00517 (2013.01); A61B 2018/206 (2013.01); A61B 2018/2261 (2013.01)] | 6 Claims |
1. A light treatment system, comprising:
a light source configured to generate light having a wavelength of 690 nm;
a probe including an optical fiber configured to propagate the light from the light source, and a diffuser having a cylindrical shape and provided at a distal end of the optical fiber, the diffuser being configured to diffuse the light from a surface of the cylindrical shape;
a balloon catheter into which the probe is inserted, the balloon catheter being configured to be inserted into the bladder, the balloon catheter including a distal end portion configured to be spherically dilated in the bladder; and
a liquid that includes light scattering particles and fills an inside of the distal end portion when the distal end portion is dilated, the liquid having a scattering coefficient μ′s equal to or larger than 5/R, where R is a maximum radius of the distal end portion when dilated;
wherein the maximum radius of the distal end portion is between 35 mm and 70 mm, inclusive of 35 mm and 70 mm;
a diameter of the light scattering particles is within a range of 1 μm to 4 μm, inclusive of 1 μm and 4 μm; and
a specific gravity of the light scattering particles is within a range of 0.9 to 1.4 inclusive of 0.9 and 1.4.
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