Device for blood treatment

Abstract

Abstract In a method for monitoring haemodiafiltration, an initial test is conducted on an ultrafiltrate pump (40) on the one hand and on a balance (58) on the other hand, using a monitoring device (74). In this test, a certain quantity of ultrafiltrate is conveyed from the ultrafiltrate pump (40) onto the balance (58), and the result of weighing is transmitted to the monitoring device (74). At the same time, the number of cycles produced by the ultrafiltrate pump (40) is transmitted to the monitoring device (74), which calculates the quantity conveyed, from the known pumping volume of the ultrafiltrate pump (40), and compares the calculated result with the result of weighing. Only if the two values coincide is the HDF machine approved. After the start of haemodiafiltration, the current result of weighing is on each occasion compared with the calculated result, which is calculated by the monitoring device (74) from QUF, QSub and T (quantity of ultrafiltrate to be converted and quantity of substituate, and treatment time) for the current point in time. <IMAGE>

Inventors

• 👤 Ulrich Dr. Kalepky
• 👤 Raimond Dipl.-Phys. Walter

Bibliographic Details