초록 ▼

To monitor the functionality of a partial device of a blood treatment machine, an excess pressure is built up on the blood side and on the dialysis fluid side and is monitored to detect a pressure drop. To do so, the flow path through the dialysis fluid inlet line (12), the dialysis fluid outlet lin

To monitor the functionality of a partial device of a blood treatment machine, an excess pressure is built up on the blood side and on the dialysis fluid side and is monitored to detect a pressure drop. To do so, the flow path through the dialysis fluid inlet line (12), the dialysis fluid outlet line (13) and the blood outlet line (6) can be interrupted, and the blood pump (7) is started. The test pressure on the dialysis fluid side is built up due to the ultrafiltrate passing through the membrane (2) of the dialyzer (1). Any leakage in the closed volume, which includes a part of the blood path as well as part of the dialysis fluid path, is then detected by a (greater) pressure drop.

대표청구항 ▼

[ What is claimed is:] [1.] A method for monitoring a part of a blood treatment machine, the blood treatment machine having a dialyzer subdivided by a semipermeable membrane into a first chamber having a first chamber inlet and a first chamber outlet and a second chamber having a second chamber inle

[ What is claimed is:] [1.] A method for monitoring a part of a blood treatment machine, the blood treatment machine having a dialyzer subdivided by a semipermeable membrane into a first chamber having a first chamber inlet and a first chamber outlet and a second chamber having a second chamber inlet and a second chamber outlet; a blood inlet line connected to the first chamber inlet and to a blood pump; a blood outlet line connected to the first chamber outlet; a dialysis fluid inlet line leading from a dialysis fluid source to the second chamber inlet; and a dialysis fluid outlet line leading from the second chamber outlet to a discharge point, the method comprising:separating the dialysis fluid inlet line at a first separation point, the dialysis fluid inlet line having a dialysis fluid inlet section between the dialyzer and the first separation point;separating the dialysis fluid outlet line at a second separation point, the dialysis fluid outlet line having a dialysis fluid outlet section between the dialyzer and the second separation point;separating the blood outlet line at a third separation point, the blood outlet line having a blood outlet line section between the dialyzer and the third separation point;separating the blood inlet line at a fourth separation point, the blood inlet line having a blood inlet line section between the dialyzer and the fourth separation point;building up an excess pressure in a closed system, the closed system including the dialyzer, the dialysis fluid inlet section, the dialysis fluid outlet section, the blood outlet line section and the blood inlet line section; andmonitoring the excess pressure to detect a pressure drop in the closed system.