PROBLEM TO BE SOLVED: To provide a blood circulation system, when a necessity for increasing/decreasing a blood transmission flow rate arises due to a situation during an operation, capable of efficiently and stably circulating the blood in the blood circulation system including a reservoir.SOLUTION: The blood circulation system includes: a reservoir 102 a liquid level sensor 102S for detecting a liquid level of the reservoir 102 a blood removal flow rate sensor 111 a roller pump 120 and a control part 140 for interlockedly controlling the transmission blood flow rate of the roller pump 120 with respect to the blood removal flow rate. When the liquid level of the reservoir 102 is lower than a reference liquid level, the control part 140 decreases the transmission blood flow rate and, when the liquid level of the reservoir 102 is higher than the reference liquid level, increases the transmission blood flow rate.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】リザーバを備えた血液循環システムにおいて、手術中の状況により送血流量を増減する必要が生じた場合に、効率的かつ安定して血液循環させることが可能な血液循環システムを提供すること。【解決手段】リザーバ102と、前記リザーバ102の液位を検知する液位センサ102Sと、脱血流量センサ111と、ローラポンプ120と、前記ローラポンプ120の送血流量を前記脱血流量に連動送血制御する制御部140とを備え、前記制御部140は、前記リザーバ102の液位が前記基準液位より低い場合に送血流量を減少させ、前記リザーバ102の液位が前記基準液位より高い場合に送血流量を増加することを特徴とする。【選択図】図1
