Sealed ensuring mechanism provided in the medical equipment has a elevator unit consists of elevator operation mechanism and raising conduit portion and the guide tube and the elevator Metropolitan. Raising conduit section, the wire fixing portion and the seal member fixed to the watertight or airtight in the outer member is provided to connect to the raising wire that has been inserted into the outer member, which is supplied from the opening of the outer member fluid is separated into a fluidized by watertight or airtight and elevator operating mechanism and raising line between the outer peripheral surface of the inner peripheral surface and the seal member of the raising conduit.医療機器に備えられた密閉性確保機構は、起上台操作機構と起上管路部とガイドチューブと起上台とで構成される起上台ユニットを有する。起上管路部は、外周部材内に挿通された起上ワイヤに接続するワイヤ固定部と外周部材とに水密又は気密に固定されたシール部材が設けられ、外周部材の開口部より供給された流体が起上管路の内周面とシール部材の外周面の間を流動し起上台操作機構と起上管路とを水密又は気密に分離する。
