PROBLEM TO BE SOLVED: To provide laser treatment device in which a laser beam emission part and other parts are appropriately protected in attachment to and detachment from an operation microscope.SOLUTION: A laser treatment device (100) comprises a laser irradiation unit (10) that includes a top surface (12t), a bottom surface (12b), a through hole having openings in the top surface and the bottom surface, and a laser emission port (12L) positioned within the through hole and that is attachable to a lens barrel (200B) of an operation microscope (200), and a protection cover (300) that is attachable to the laser irradiation unit 10, provided with a top plate for covering the opening of the top surface, a bottom plate for covering the opening of the bottom surface and a connecting plate for connecting the top plate and the bottom plate, and formed to have a U-shaped cross-section.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2016,JPO&INPIT【課題】手術用顕微鏡への取り付けおよび手術用顕微鏡からの取り外し時に、レーザ光が出射する部分等が適切に保護されるレーザ治療装置を提供する。【解決手段】レーザ治療装置(100)は、上面(12t)、底面(12b)、前記上面および前記底面にそれぞれ開口を有する貫通孔、前記貫通孔内に位置するレーザ出射口(12L)を含み、手術用顕微鏡(200)の鏡筒(200B)に着脱自在なレーザ照射ユニット(10)と、前記レーザ照射ユニット10に着脱可能な、保護カバー(300)であって、前記上面の前記開口を塞ぐ上板、前記底面の前記開口を塞ぐ底板および前記上板と前記底板とを接続するつなぎ板とを含み、コの字形の断面形状を有する、保護カバーとを備える。【選択図】図7
