| 摘要 |
The invention relates to a medical fluid pump, comprising a first, inner fluid system, which comprises a motor-driven suction/pressure unit (4, 6) and a first fluid pressure chamber (14), which can be filled with and drained of fluid by the suction/pressure unit and comprising a first moveable separating wall (20a) and comprising a second, outer fluid system, which comprises a second fluid pressure chamber, which is coupled to the first fluid pressure chamber (22) in a fluid-tight manner by means of a movable separating wall (20b) in a pressure- and/or volume-dynamic manner and which is connected alternately to a suction line and a pressure line by means of a valve device of the second fluid system in dependence on the current working phase of the suction/pressure unit of the first fluid system. |
