B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/12, 182/15.2
B01D 19/00 (2006.01) A61M 1/16 (2006.01)
Patent
CA 1092520
DEAIRING AND RECIRCULATION SYSTEMS FOR DIALYSIS MACHINES Stanley J. Pernic ABSTRACT OF THE DISCLOSURE There is disclosed herein a deairing system for use in a bedside-console-type dialysis machine. The system includes a selectively adjustable flow controller, a deairing tank, and a suction pump for drawing dialysis solution from the flow controller through the deairing tank and to the pump. The pump is also connected to the deairing tank for applying a negative pressure and for removing gas from the dialysis solution. The tank is provided with a baffle-and-ball- type check valve arrangement for preventing flow of dialysis solution through the gas line. A recirculation loop is pro- vided in conjunction with the pump and includes an air sepa- ration tank downstream of the pump and a negative pressure valve which connects the upstream side of the pump and re- circulation tank. The air separation tank cooperates with the pump to assure efficeint operation of the pump by minimizing the air drawn through the recirculation loop and to the pump from the separation tank.
292435
Baxter Travenol Laboratories Inc.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
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