Blood cell washing systems and methods

Details Blood cell washing systems and methods Blood cell washing systems and methods

1988-02-18

1990-04-24

Spear, Frank

Liquid purification or separation

Processes

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

210651, 21032168, B01D 1300

Patent

active

049198173

ABSTRACT:
A system and method for cleaning contaminants from shed blood to enable reinfusion of a cell concentrate in the patient employs successive rotary membrane filtering stages in which Taylor vortices are generated. Shed blood led into the first rotary membrane stage is filtered to a hematocrit in the range of 50-60 with some of the waste matter being removed. The intermediate cell concentrate is passed to the second filter stage where further waste matter is initially extracted. At any intermediate region, however, a major amount of wash solution is fed into the concentrate and effectively mixed by the Taylor vortices. In the remaining length of the second filter stage waste matter is entrained in wash solution and both waste and wash solution are filtered out to provide a cell concentrate from which the great majority of contaminants have been removed.

REFERENCES:
patent: 4040959 (1977-08-01), Berman et al.
patent: 4605503 (1986-08-01), Bilstad et al.
patent: 4755300 (1988-07-01), Fischel et al.
WO8203568, 10-1982.
J. Liberherr, "Hydrodynamics of Annular Gap Flow Between Permeable Cylinder Walls", Escher Wyss Mittellungen (1979) pp. 24-30.

Affiliated with

Also associated with

Rating

Blood cell washing systems and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blood cell washing systems and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blood cell washing systems and methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-32921