| 摘要 |
PURPOSE:To simplify a piping system, by disposing piping provided with an unit vessel, a flow meter, and a first valve, in series from the upstream side, a medical liquid preparing tank, a second valve, a mixing device, branch pipes, a third valve, a terminal vessel, and a discharge valve, and by regulating opening and closing of the valves by means of a regulating device. CONSTITUTION:In the case that several kinds of medical liquids are selected out of a variety of medical liquids stored in unit vessels A1-An to be mixed with each other at a predetermined ratio, at first, a first valve Vi of a unit vessel Ai corresponding to a selected medical liquid is opened to supply it into a medical liquid preparing tank D, which quantity of supply is measured by means of a flow meter Fi. When the quantity of supply reaches a predetermined quantity, the first valve Vi is closed by means of the regulating device, by which supplying one kind of medical liquid to the preparing tank D is completed. For all kinds of medical liquids to be prepared, such unit supply is conducted to stock the tank D with prepared medical liquids, following which a second valve L and a third valve Gj corresponding to a terminal vessel Sj, to which liquids are sent, are opened to feed prepared medical liquids in the tnk D to the terminal vessel Sj, thereafter a discharge valve Hj is opened by the regulating device to supply the prepared medical liquids to a treating device Zj. |
