Surgery – Blood drawn and replaced or treated and returned to body – Constituent removed from blood and remainder returned to body
Patent
1997-09-08
2000-07-04
Polutta, Mark O.
Surgery
Blood drawn and replaced or treated and returned to body
Constituent removed from blood and remainder returned to body
604 4, 424530, 210 98, A61M 3700, A61K 3516, B01D 2124
Patent
active
060831871
ABSTRACT:
The invention pertains to a method and apparatus for treating blood. If pressure constraints occur during the execution of blood treatment, the pump flow rates are rapidly decelerated to remove the pressure constraints so that the treating operation will restore the normal state as quickly as possible. After the pressure constraints have been removed, the pump flow rates are restored at a preset acceleration without causing any excessive pressure buildup due to an abruptly increased load. If the pump flow rates immediately after the start of operation of the processor are increased through two stages of acceleration, the target flow rates can be rapidly reached without exerting any abrupt load on the processor and, hence, without causing an excessive pressure buildup.
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Hamanishi Yasufumi
Nakayama Takehisa
Narisada Masataka
Tachibana Hiroshi
Takao Yoshizumi
Bianco Patricia M.
Kaneka Corporation
Polutta Mark O.
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