The surgical treatment tool includes a treatment portion having a treatment surface for treating a living tissue, a part of the outer surface of the treatment portion, a heat insulating film covering a portion other than the treatment surface, and a portion other than the treatment surface And a protective film having a film strength stronger than that of the heat insulating film.外科用処置具は、生体組織を処置する処置面を有する処置部と、前記処置部の外表面の一部であって、前記処置面以外の部分を覆う断熱皮膜と、前記処置面以外の部分で前記断熱皮膜を覆うように設けられ、前記断熱皮膜よりも膜強度が強い保護皮膜と、を備える。
