Assembly, compositions and method for separating blood
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United States of America Patent
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Sep 21, 1982
Issued Date -
N/A
app pub date -
Jun 25, 1979
filing date -
Dec 19, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The disclosure is of an improved assembly, compositions and method for the separation of blood into its light, liquid and heavy, substantially cellular phases with insertion of a non-Newtonian fluid between the phases as a barrier. The improvement comprises using as the non-Newtonian fluid, one which has substantially time independent rheological properties and a controlled yield stress value. The improved assemblies of the invention have enhanced shelf-lives and improved reliability of operation. The preferred assemblies may be sterilized by irradiation and the disclosure is also of a method for their manufacture.
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