| 摘要 |
The invention relates to a method and device for testing the delivery rate of at least one first or one second delivery means of a device for extracorporeal blood treatment by measuring the pressure in a closed container that is at least partially filled with air by means of a first pressure measurement. A first liquid volume is delivered into the container using a first delivery means; the pressure in the container is measured by means of a second pressure measurement after the delivery of the first liquid volume; a second liquid volume is then delivered from the container using a second delivery means, and the pressure in the container is measured by means of a third pressure measurement after the delivery of the second liquid volume. At least the measured values of the first pressure measurement and of the third pressure measurement are evaluated as a measure of the deviation of the delivery rate of the second delivery means from the delivery rate of the first delivery means. A reversed delivery sequence beginning with the delivery of a first liquid volume from the container, followed by the delivery of a second liquid volume into the container, is also possible according to the invention. |
