| 摘要 |
The invention relates to a drainage pump unit for suctioning body fluids by means of a suction pump, comprising a suction pump housing (1) and a suction pump arranged therein, wherein a fluid collecting container (2) can be detachably fastened to the suction pump housing (1) and wherein a capacitive filling level sensor (7) for detecting a filling level in the fluid collecting container (2) is arranged on the suction pump housing (1). The filling level sensor (7) comprises at least two electrodes (70, 71), which are mutually spaced and extend over a common distance. A first (70) of said electrodes is integral and a second (71) of said electrodes is segmented. Said arrangement enables inexpensive fluid collecting containers to be produced yet nevertheless ensures high measuring accuracy. |
