Synthetic whole blood substitute and a method of making the same
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United States of America Patent
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Dec 10, 1985
Issued Date -
N/A
app pub date -
Jun 29, 1983
filing date -
Dec 31, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A composition of matter which comprises a synthetic whole blood useful as a substitute for whole natural blood and a method of making the same are disclosed. The method of manufacture yields a composition of matter comprised of a two phase coacervate system. The claimed system successfully duplicates the two phase heterogeneous physico-chemical system of naturally occurring whole blood. Also disclosed is a phase of the claimed method of manufacture which produces a composition of matter, useful as a substitute for hematocrit. Also disclosed is an embodiment employing a hemoglobin component which is preferably selected from stroma free hemoglobin, synthetic liposomes containing stroma free hemoglobin, microencapsulated stroma free hemoglobin, or emulsified droplets of coacervate containing stroma free hemoglobin. It is preferred that the microencapsulated stroma free hemoglobin when employed ranges in size from 0.1 to 10 microns. Among the main ingredients of the blood substitute composition are gelatin or modified fluid gelatin and acacia.
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