| 摘要 |
A blood purification device allows confirming whether a specific peak is provided by a means, such as a ultrafiltration pump, to concentrate the blood or not and also allows measuring certainly and accurately a blood re-circulation with reduction of parameters which can provide a ratio of re-circulating blood. The blood purification device including blood circuit route 1 composed of arterial blood circuit route 1 a and venous blood circuit route 1 b, blood pump 3 , dialyzer 2 , water removal pump 8 which can provide the specific peak in the variation of blood concentration by removing water rapidly in a short period of time, and detecting means detecting said specific peak, can measure the blood re-circulation based on the specific peak detected by the detecting means. The re-circulating blood flowing is the blood which was introduced again to arterial blood circuit route 1 a after it had been returned to a patient from venous blood circuit route 1 b. The detecting means includes first detecting means 5 a installed in arterial blood circuit route 1 a and second detecting means 5 b installed in venous blood circuit route 1 b. |
