Light treatment system and light treatment method

    公开(公告)号:US11786305B2

    公开(公告)日:2023-10-17

    申请号:US17182304

    申请日:2021-02-23

    发明人: Toshiaki Suzuki

    摘要: A light treatment system includes: a probe configured to be inserted into a bladder, the probe including an optical fiber, and a diffuser that is provided at a distal end of the optical fiber, the diffuser being configured to emit the light from a surface of the cylindrical shape in a diffused manner; 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 that is to be spherically dilated in the bladder; and a liquid that includes light scattering particles and fills inside of the distal end portion when the distal end portion has been dilated, the liquid having an equivalent scattering coefficient μ′s equal to or larger than 5/R, where R is a maximum radius of the distal end portion that has been dilated.