Peritoneal dialysis systems and methods employing pneumatic pres

Details Peritoneal dialysis systems and methods employing pneumatic pres Peritoneal dialysis systems and methods employing pneumatic pres

1993-03-03

1995-12-12

Kim, John

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

73149, 210 90, 210103, 210134, 210241, 210742, 364564, 604 28, 604 29, 604 30, 604 31, 604 65, 604 67, A61M 128

Patent

active

054746833

ABSTRACT:
Peritoneal dialysis systems and methods move liquid using a pump chamber that is operated in response to pneumatic pressure variations applied by a pump actuator. The systems and methods periodically measure air pressures in the actuator and an associated reference air chamber and derive from these a measurement of liquid volume moved through the pump chamber. The systems and methods minimize derivation errors by compensating for temperature differences among the pump chamber; the pump actuator; and the reference chamber.

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