The medical treatment apparatus includes first and second holding members 10 and 20 which are opened and closed around a first rotation axis RA 1 in accordance with the operation of the operation handle, one end connected to the operation section, and a first And a shaft main body 61 that axially supports the first and second holding members 10, 20 so as to be openable and closable via a rotation axis RA <；b>； 1. The first holding member 10 includes a heat transfer plate 12 that contacts the living tissue when the living tissue is held by the first and second holding members 10 and 20 and applies energy to the living tissue. The heat transfer plate 12 is electrically connected to the lead wire C1 wired inside the shaft body 61 from the other end side to the one end side, and the flexible board 13 for supplying energy to the heat transfer plate 12 is connected Has been done. The flexible substrate 13 is connected to the lead wire C1 at the one end side of the first rotation axis RA1.医療用処置装置は、操作ハンドルの操作に伴い、第１の回転軸ＲＡ１を中心として開閉する第１，第２保持部材１０，２０と、一端が操作部と接続し、他端に第１の回転軸ＲＡ１を介して第１，第２保持部材１０，２０を開閉可能に軸支するシャフト本体６１と、を備える。第１保持部材１０は、第１，第２保持部材１０，２０にて生体組織が挟持された際に当該生体組織に接触し、当該生体組織にエネルギを印加する伝熱板１２を備える。伝熱板１２には、上記他端側から上記一端側に向けてシャフト本体６１内部に配線されたリード線Ｃ１と電気的に接続し、伝熱板１２にエネルギを供給するフレキシブル基板１３が接続されている。フレキシブル基板１３は、第１の回転軸ＲＡ１よりも上記一端側でリード線Ｃ１と接続する。
