发明名称 |
Biodegradable polymer membrane containing hemoglobin for blood substitute |
摘要 |
The present invention relates to the production of a biocompatible and biodegradable polymer membrane comprising the steps of: a) mixing a polymer selected from the group consisting of polylactic acid, polyglycolic acid and polylactide-co-glycolide with a pharmaceutically acceptable surfactant; b) emulsifying an hemoglobin solution in the mixed solution of step a) to form particles of polymer membrane containing hemoglobin; c) solidifying the particles of step b) by adding cyclohexane; d) separating the solidified particles of step c) by centrifugation; and e) suspending the particles of step d) in a saline solution. In addition another approach uses alcohol-acetone. The biocompatible and biodegradable polymer membrane in accordance with the present invention contains from about 25 to 35% by weight of hemoglobin and has an average diameter from about 0.07 to 1.1 mu , preferably a submicron diameter of less than 0.2 mu .
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申请公布号 |
US5670173(A) |
申请公布日期 |
1997.09.23 |
申请号 |
US19950469782 |
申请日期 |
1995.06.06 |
申请人 |
MCGILL UNIVERSITY |
发明人 |
CHANG, THOMAS MING SWI;YU, WEI-PING |
分类号 |
A61K38/42;(IPC1-7):A61K35/18 |
主分类号 |
A61K38/42 |
代理机构 |
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