Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1997-01-07
1999-09-21
Kim, John
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
210 85, 210 87, 210 90, 210 97, 210103, 210109, 210143, 210252, 2102571, 210258, B01D 3700, B01D 3600
Patent
active
059549718
ABSTRACT:
Automated filtration of whole blood or blood components is accomplished in a manner that ensures consistent flow or pressure characteristics through the filter. A feedback circuit monitors pressure in the vicinity of the filter inlet and controls operation of a fluid pump that sends one or more unfiltered blood components into the filter. Using this arrangement, a variety of parameters relating to filtration efficacy can be precisely controlled, including flow rate, flow pressure, and average pressure over a predetermined volume. The system may provide an alarm or automatic cut-off in the event a maximum value of one of the parameters is reached or exceeded. The system is also capable of serially filtering multiple blood products through the single filter and accommodating different flow or pressure characteristics associated with each such product.
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Baratelli Yves
Dransart Alain
Egozy Yair
Pages Etienne
Haemonetics Corporation
Kim John
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