| 摘要 |
The purpose of the present invention is to provide an extracorporeal circulation device which can reliably prevent any negative impact on subjects regardless of the form of the bubbles and which enables a reduction in the period of time over which blood transmission is stopped. The present invention is an extracorporeal circulation device, and is characterized by being equipped with a bubble sensor, a means for calculating, on the basis of a signal output by the bubble sensor, an evaluation parameter corresponding to the cumulative value of the volumes of bubbles that have been mixed in, a means for outputting a message in cases in which, over a prescribed time period, the value of the calculated evaluation parameter reaches a first level, and a means for causing a clamp to close in cases in which, over the prescribed time period, the value of the calculated evaluation parameter reaches a second level which is higher than the first level. |
