Blood treatment device with moving membrane

Details Blood treatment device with moving membrane Blood treatment device with moving membrane

1994-08-01

1997-05-06

Bhat, Nina

Liquid purification or separation

Processes

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

21032167, 210649, 422 46, A61M 114, B01D 6100, C02F 144

Patent

active

056267592

ABSTRACT:
A medical device and method for affecting mass transfer between blood and a fluid. In one application, this mass transfer is an oxygenation of the blood. Generally, a membrane which separates the blood and fluid is moved in a predetermined manner and in a direction which is substantially parallel to that of the primary direction of the flow to augment the mass transfer efficiency/rate. Importantly, this movement of the membrane is relative to the blood mass transfer boundary layer which steepens or increases the oxygen concentration gradient and decreases the thickness of the blood mass transfer boundary layer and thereby improves upon the mass transfer efficiency/rate of oxygen into the blood.

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