DIALYSIS SYSTEMS HAVING AIR TRAPS WITH INTERNAL STRUCTURES TO ENHANCE AIR REMOVAL

摘要

A dialysis fluid cassette (10) includes a rigid portion defining first and second valve chambers (22, 24), the rigid portion further defining an air separation chamber (52) in fluid communication with the first and second valve chambers, the air separation chamber including a baffle (80a) and structured such that when the cassette is placed in a dialysis instrument, (i) the baffle extends upwardly from a bottom of the air separation chamber and (ii) first and second openings to the air separation chamber, communicating fluidly and respectively with the first and second valve chambers, are located near the bottom of the air separation chamber, such that the dialysis fluid is forced up one side of the baffle and down the other side of the baffle when flowing through the air separation chamber.