The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 1985
Filed:
May. 29, 1984
Norbert Kothe, Kronberg, DE;
Bertram Eichentopf, Bad Soden, DE;
Biotest Pharma GmbH, Frankfurt, DE;
Abstract
To provide a method that allows the preparation, not only from human blood but also from animal blood and in quantities large enough for clinical applications, of highly purified hemoglobin solutions that can be employed for the treatment of humans and that are free of plasma proteins and residual stroma lipids (a) a starting material that contains erythrocytes is pumped over a filter unit that has a pore size between 0.1 and 1.2 .mu.m in circulation against an isotonic washing solution, (b) the product of (a) is hemolyzed and pumped over an ultrafiltration unit that has a permeability of 80,000 to 100,000 D in circulation against water, and (c) the ultrafiltrate obtained in stage (b) is pumped and diafiltered over an ultrafiltration unit that has a permeability of 10,000 to 50,000 D in circulation against water, whereby concentration is conducted before and/or after diafiltration.