PROBLEM TO BE SOLVED: To provide a medical drainage device which enables accurate recognition of a drainage amount.SOLUTION: The medical drainage device 1 includes: a connection tube 11 which is connected to a catheter 3 a suction device 12 which is connected to the connection tube 11 and includes a pump 121 that is a hollow elastic body a storage bag 13 which is connected to the pump 121 of the suction device 12 and stores drainage sucked through the connection tube 11 and the pump 121 and a check valve 17 which makes a gas and the drainage flowing from the pump 121 to the storage bag 13 pass through and prevents the flow of the gas and the drainage from the storage bag 13 to the pump 121. The medical drainage device 1 is provided with a communication path (tube 151) for communicating the pump 121 of the suction device 12 with the storage bag 13 and supplying the gas inside the storage bag 13 to the pump 121.COPYRIGHT: (C)2013,JPO&INPIT【課題】排液量を正確に把握できる医療用排液用具を提供すること。【解決手段】医療用排液用具1は、カテーテル3に接続される接続用チューブ11と、接続用チューブ11に接続され、中空の弾性体であるポンプ121を含む吸引器12と、吸引器12のポンプ121に接続され、接続用チューブ11およびポンプ121を介して吸引した排液を貯留する貯留バッグ13と、ポンプ121から貯留バッグ13へ流れる気体および排液を通すとともに、貯留バッグ13からポンプ121への気体および排液の流れを防止する逆止弁17とを備える。医療用排液用具1には、吸引器12のポンプ121と、貯留バッグ13とを連通し、貯留バッグ13内の気体をポンプ121に供給するための連通路(チューブ151)が設けられている【選択図】図1
