Drug – bio-affecting and body treating compositions – Extract – body fluid – or cellular material of undetermined... – Nervous system
Patent
1995-02-03
1996-04-30
Knode, Marian C.
Drug, bio-affecting and body treating compositions
Extract, body fluid, or cellular material of undetermined...
Nervous system
424583, 514 2, 514 21, 530381, 435 13, A61K 3530
Patent
active
055123040
ABSTRACT:
A thromboplastin extract including an aqueous thromboplastin extract of a powdered thromboplastin source including a metal ion chelator. A thromboplastin reagent for use in blood coagulation tests, the thromboplastin reagent includes the extract and calcium ions, and may include one or more of a stabilizer and a preservative.
A process for preparing a thromboplastin extract including extracting a powdered thromboplastin source in an aqueous solution having a metal ion chelator, and separating the powder in solution into sedimented powder and supernatant thromboplastin extract. The supernatant thromboplastin extract is mixed with calcium ions, and may be mixed with one or more of a stabilizer and a preservative, to prepare thromboplastin reagent.
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Hubbard et al., Biol. Abstr., 82(3):AB-85, Blood, Organs and Body Fluids, Ref. No. 20346.
Jensen et al., "Tissue Factor Pathway Inhibitor", Clinical Hemostasis Review, vol. 6, No. 6, Jun. 1992.
Pharmaceuticals, vol. 110, 1989, "Sorbent for Extracting and Purifying Thromboplastin and Method of Producing Same", Staroverov et al.
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"Partial Purification of Tissue Thromboplastin by means of Gel Filtration and Reproduction of the Syndrome . . . Thrombinogenesis . . . ", Magerovskii et al.
Barrow David A.
Rullman Richard L.
Helena Laboratories Corporation
Knode Marian C.
Witz Jean C.
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