Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1994-02-25
1997-02-25
Kim, John
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210143, 21032172, 210420, 210424, 210645, B01D 6100, B01D 6128, B01D 6132
Patent
active
056056303
ABSTRACT:
Blood guided out of the artery of a patient by a blood pump is introduced into an arterial inlet of a blood flow direction changeover device, and it is then guided from the outlet of the changeover device to a dialzyer through an inlet thereof. The blood then leaves an outlet of the dialyzer, enters the blood flow path changeover device, leaves a venous outlet of the changeover device and returns into the vein of the patient. The dialytic liquid, on the other hand, leaves a dialytic liquid outlet, passes through a dialytic liquid flow direction changeover device and is finally discharged through a dialytic liquid outlet. Then, the respective changeover devices are changed over to reverse the respective flows. This is intermittently repeated. Thus, blood coagulation can be inhibited or prevented.
REFERENCES:
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patent: 4331540 (1982-05-01), Witsoe
patent: 4614590 (1986-09-01), Rath et al.
patent: 4623450 (1986-11-01), Vantard et al.
patent: 4648866 (1987-03-01), Malbrancq et al.
patent: 4834888 (1989-05-01), Polaschegg
patent: 4844810 (1989-07-01), Richalley et al.
Kim John
SciTec Kabushiki Kaisha
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