Thin polycarbonate membranes for use in hemodialysis

Details Thin polycarbonate membranes for use in hemodialysis Thin polycarbonate membranes for use in hemodialysis

1976-03-31

1978-01-17

Bascomb, Jr., Wilbur L.

Surgery

Respiratory method or device

Ozone or ion generation

210321B, 210500M, B01D 3100

Patent

active

040691519

ABSTRACT:
Thin membranes for hemodialysis prepared from polycarbonate materials have superior transport properties for middle molecular weight molecules than do cellulosic membranes or previously available thicker polycarbonate membranes while having an ultrafiltration rate less than that obtainable with thicker polycarbonate membranes. Thin polycarbonate membranes with a thickness of about 0.8 mil, an ultrafiltration rate of about 3.5 ml/hr/M.sup.2 /mmHg, a sodium chloride diffusive permeability of about 830 cm/min(.times.10.sup.-4) at 37.degree. C and a vitamin B.sub.12 diffusive permeability of about 114 cm/min .times. 10.sup.-4 at 37.degree. C have been produced.

REFERENCES:
patent: 3526588 (1970-09-01), Michaels et al.
patent: 3615024 (1971-10-01), Michaels
patent: 3653180 (1972-04-01), Juliano et al.
patent: 3781378 (1973-12-01), Kantor et al.
patent: 3945926 (1976-03-01), Kesting

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