Baxter International Inc.
DIALYSIS TRANSFER SET HAVING FILTER INTEGRITY TESTING

Abstract:

A dialysis system includes a source of water; a concentrate for mixing with the water a disposable set including a pumping portion, a water line in fluid including a filter for filtering the water, a concentrate line in fluid communication with the source of water and the pumping portion; and a medical fluid delivery machine including a pump actuator operable with the pumping portion, a pressure sensor, and a control unit programmed to cause (i) the pump actuator to pump water to wet a membrane of the filter, thereafter remove at least some of the water from the filter, and pressurize a portion of the water line leading from the pumping portion to the filter, (ii) the pressure sensor to sense pressure in the pressurized portion of the water line, and (iii) an analysis of the sensed pressure to be performed to evaluate the integrity of the filter.