PROBLEM TO BE SOLVED: To provide a medical equipment capable of reliably preventing body cavity liquid from leaking our through a treatment instrument insertion port.SOLUTION: A medical equipment is provided with: an insertion part 2 inserted into a body cavity a first tube 41 inserted into the insertion part and extending out from the tip end to the base end side of the insertion part a second tube 42 one end of which is connected to the first tube and another end of which is connected to an opening 3e communicated with the outside a third tube 43 which is provided while branched from a joint part of the first and second tubes, and connected to an external suction device 24 one end of which is connected to the first tube and another end of which sucks liquid in the first tube an intermediate tube 30 mounted between the other end of the second tube and an external pressure device 28 pressing the inside of the first tube, and forming a flow path guiding feed gas from the external pressure device into the second tube and a valve member 3cc which is fitted to the third tube, and switches between a first condition where the first tube and the external suction device are communicated by receiving an external operation, and a second condition where communication between the first tube and the external suction device is suppressed so that the external suction device can suck the liquid in the first tube with a flow amount less than that in the first condition.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】処置具挿入口からの体腔内液の漏出を確実に抑止し得る医療機器を提供する。【解決手段】体腔内に挿入される挿入部2と、挿入部に挿通され挿入部の先端から基端側まで延出する第1管路41と、一端が第1管路に接続され他端が外部に連通する開口3eに接続される第2管路42と、第1及び第2管路の接続部分から分岐して設けられ一端が第1管路に接続され他端が第1管路内の流体を吸引する外部吸引装置24に接続される第3管路43と、第2管路の他端と第1管路内を加圧する外部加圧装置28との間に設けられ外部加圧装置からの送気体を第2管路内へと導く流路をなす中間管路30と、第3管路に設けられ外部操作を受けて第1管路と外部吸引装置とを連通させる第1状態と、第1状態より少ない流量で外部吸引装置が第1管路内の流体を吸引し得るように第1管路と外部吸引装置との連通を抑制した第2状態とを切り換える弁部材3ccとを具備する。【選択図】図2
