Spray dried human plasma
a technology of human plasma and spray drying, which is applied in the direction of drying machines, anti-microbial ingredients, lighting and heating apparatus, etc., can solve the problems of limited shelf life, high cost of maintaining frozen plasma at the appropriate temperature during storage and transportation, and easy brittleness of bags containing frozen plasma, etc., to achieve rapid and easy re-constitution and use, and easy storage and transportation
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example i
[0246]Table 4 illustrates test results between fresh frozen plasma, spray dried plasma rehydrated with 2 mL of water, and spray dried plasma powder rehydrated with 2 mL of glycine. The text results were obtained using a STart® 4 semi automated homostasis analyzer available from Diagnostica Stago, Inc. of Parsippany, N.J. Note that the Factor V and Factor VII values of the FFP are presented as a clotting time value with units of seconds, and not as an absolute level in units of IU / dL.
[0247]
TABLE 4Spray dried Plasma vs. Fresh Frozen PlasmaTotalPercentage of ProteinProthrombinFactor Factor ProteinCompared to FreshTime (PT)VVII(mg / mL)Frozen Plasma(sec)(sec)(sec)Fresh Frozen Plasma50NA151516Spray Dried Plasma rehydrated with 2 mL water100 mg31 61%181816200 mg56111%161616300 mg78155%192019Spray Dried Plasma rehydrated with 2 mL glycine100 mg35 69%181616200 mg61121%151516300 mg82163%161616400 mg97193%181717
example ii
[0248]FIG. 17A shows a chart which illustrates the results of tests on spray dried plasma samples. Fresh plasma (<24 hour from draw) was dried under varying processing conditions. A first set of dried plasma units was dried with an inlet temperature of 97° C. and a fixed plasma flow rate of 3 mL / min. A second set was dried with a drying gas inlet temperature of 97° C. and with a plasma flow rate which was varied to maintain a desired gas outlet temperature. A third set was dried with a drying gas inlet temperature of 112° C. and with a plasma flow rate which was varied to maintain a desired gas outlet temperature. A fourth set was dried with a drying gas inlet temperature of 117° C. and with a plasma flow rate which was varied to maintain a desired gas outlet temperature.
[0249]A sample from each of the dried units was reconstituted in deionized water (e.g., at a ratio of 0.09 g of powder per mL of deionized water). The reconstituted plasma was tested with a Stago Compact series anal...
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