Medical laser irradiation device and medical laser irradiation method

Abstract

[Object] There is provided .a medical laser irradiation device and a medical laser irradiation method, both of which are capable removing plaque adhering to the angioendothelium more safely using laser light. [Solution] A medical laser irradiation device according to the present disclosure includes a first laser light source configured to emit a first laser light having a wavelength band that is selectively absorbed by plaque existing inside a blood vessel of a living body; a second laser light source configured to emit a second laser light having a wavelength band that is selectively absorbed by the plaque calcified and existing inside the blood vessel; and an optical fiber configured to coaxially guide the first laser light and the second laser light, and at least a part of which is inserted into the blood vessel.

Dependencies are inferred from the claim text.