| 摘要 |
PROBLEM TO BE SOLVED: To exactly send out two kinds of fluid at a specified flow ratio by providing the device with a pair of pump head tubes, which have a prescribed cross-sectional area ratio so that the flow ratio of two kinds of mother liquor can become a prescribed value, at a single pump head and a pressing means for sending out the mother liquor to this head. SOLUTION: A pair of pump head tubes 1 and 9 having different inner diameters are parallelly arranged and the upstream ends of the respective tubes 1 and 9 are connected to a supply source BS for every mother liquor and a chamber I or II. On the other hand, the downstream ends are joined by a mobile tube 10 and two kinds of mother liquor are sent out as a 3rd solution. Besides, between the respective supply sources BS and a section on the upstream side rather than a mixing point, recirculation branching paths 1R and 9R are connected to the respective tubes 1 and 9. When it is desired to move the unmixed blood or unmixed solution I or II at the moving terminal of heart stop method, a prescribed section on the upstream side rather than the mixing point is closed by a clamp E and operated so as to circulate any one of recirculation branching paths 1R and 9R. |
