Polyvinylpyrrolidone cryoprecipitate extraction of clotting factors
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United States of America Patent
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Mar 5, 2013
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N/A
app pub date -
Oct 31, 2007
filing date -
Oct 23, 2000
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Abstract
Blood collection, processing and transfer leads to the separation of discrete fractions by adding additional citrate (trisodium citrate) to bring the citrate concentration to 10%-15% w/v thereby leading to enhanced yield and purity of cryoprecipitate. The improved cryoprecipitate then yields concentrated clotting factors by an improved extraction process which uses polyvinyl pyrollidone to reduce the extraction of fibrinogen. Following extraction the remaining cryoprecipitate can advantageously be formed into a fibrin fabric used in surgeries and in the treatment of wounds.
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