Method of monitoring part of a blood treatment machine and a blo

Details Method of monitoring part of a blood treatment machine and a blo Method of monitoring part of a blood treatment machine and a blo

1998-12-23

2000-05-23

Kim, John

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210 85, 210 90, 210 97, 210645, 210646, 210741, B01D 6132, B01D 6128, B01D 6510

Patent

active

060662611

ABSTRACT:
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.

REFERENCES:
patent: 4444596 (1984-04-01), Gortz et al.
patent: 5674404 (1997-10-01), Kenley et al.
patent: 5711883 (1998-01-01), Folden et al.
patent: 5910252 (1999-06-01), Truitt et al.

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