Filter integrity test method for dialysis machines

Details Filter integrity test method for dialysis machines Filter integrity test method for dialysis machines

1996-04-30

1997-10-07

Kim, John

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210 85, 210 90, 210646, 210739, 73 38, 73 40, B01D 6510

Patent

active

056744048

ABSTRACT:
A method is described for automatically testing the integrity of a dialyzer filter within a dialysis machine. The method consists of substantially removing fluids which may be present from the blood side of the dialyzer filter, pumping air into the blood side of the dialyzer filter with a blood pump to pressurize the dialyzer filter, and measuring the pressurization of the dialyzer filter. If the dialyzer filter pressurizes, the rate of decay of pressurization is measured. The pressurization and rate of decay are indicative of the integrity of the membrane of the dialyzer filter.

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