Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1981-07-14
1983-08-09
Sadowski, David R.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210651, 210744, 210 86, 210104, 210105, 210110, 210111, 210116, 210134, 210137, 210203, 2102572, 210259, 2103211, 210335, 2104332, B01D 1300, B01D 3100
Patent
active
043977472
ABSTRACT:
The invention provides an apparatus for plasma separation/exchange by double-step-membrane filtration, namely separation of blood into plasma and a corpuscular fraction and separation of high-molecular-weight substances (e.g. gamma-globulin) in the plasma from low-molecular-weight substances (e.g. albumin), and addition of a substitute fluid. A method of treating blood is also provided.
The apparatus and method are effective e.g. in the treatment of blood of patients with peripheral circulatory insufficiency due to arteriosclerosis and of patients with rheumatoid arthritis, which is an autoimmune disease.
REFERENCES:
patent: 3579441 (1971-05-01), Brown
patent: 3619423 (1971-11-01), Galletti et al.
patent: 3844171 (1974-10-01), Rodger
patent: 3854907 (1974-12-01), Rising
patent: 3946731 (1976-03-01), Lichtenstein
patent: 4248087 (1981-02-01), Dennis et al.
Malchesky, P. S. et al. "On-Line Separation of Macromolecules . . . ," Artificial Organs, vol. 4, No. 3, Aug. 1980, pp. 205-207.
Agishi et al., Japanese Journal of Medical Instrumentation, vol. 49, Supplement, pp. 259-261, 1979.
Kawasumi Laboratories Inc.
Kramer Barry
Kuraray Co. Ltd.
Sadowski David R.
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