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    • 55. 发明授权
    • SYSTEM AND METHOD FOR PREPARATION OF A MEDICAL FLUID
    • 系统VERFAHRENFÜRDIE VORBEREITUNG EINER MEDIZINISCHENFLÜSSIGKEIT
    • EP2988797B1
    • 2017-02-15
    • EP14721236.9
    • 2014-04-16
    • Gambro Lundia AB
    • JANSSON, OlofHOBRO, StureJÖNSSON, Lennart
    • A61M1/16B01F5/00B01F15/00B01F15/02B01F15/04G05D11/13
    • B01F15/0022A61M1/1656A61M1/1666B01F15/00285B01F15/0243B01F15/042B01F2015/0221G05D11/138
    • The present invention concerns a system and a method for dosing of at least two concentrates into water for on-line preparation of a medical fluid. The system comprises a main line (1) for feeding of water, a first line (2) with a first pump (3) for feeding of a first concentrate into the main line at a first mixing point (4), a second line (5) with a second pump (6) for feeding of a second concentrate into the main line at a second mixing point (7). A main concentration sensor (12) measures the concentration in the main line (1) downstream both the first and the second mixing points. Initially, while not feeding any of the second concentrate, the control of the dosing of the first concentrate is under feedback control from the main concentration sensor (12) to the first pump (3). At a certain point in time a value for a feeding parameter for the first pump (3) is determined and the feedback control from the main concentration sensor (12) is moved, from control of the first pump (3) to control of the second pump (6). Then the value for the feeding parameter is used for control of the first pump (3).
    • 本发明涉及一种用于将至少两种浓缩物计量给用于在线制备医用流体的系统和方法。 该系统包括用于供水的主管线(1),具有第一泵(3)的第一管线(2),用于在第一混合点(4)将第一浓缩物送入主管线,第二管线 5),其具有用于在第二混合点(7)将第二浓缩物进料到主管线中的第二泵(6)。 主浓度传感器(12)测量第一和第二混合点下游的主管线(1)中的浓度。 最初,虽然没有供给任何第二浓缩物,但是第一浓缩物的计量的控制是从主浓度传感器(12)到第一泵(3)的反馈控制。 在某个时间点,确定第一泵(3)的进料参数的值,并且从主浓缩传感器(12)的反馈控制从第一泵(3)的控制转移到第二泵 泵(6)。 然后,用于进给参数的值用于控制第一泵(3)。