Method of manufacture of a material for osteoplasty from a natural bone tissue and material obtained thereby
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United States of America Patent
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Dec 17, 1996
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N/A
app pub date -
Feb 3, 1995
filing date -
Nov 22, 1989
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Abstract
Osteoplasty material substantially devoid of antigenic proteins, wherein the material contains a natural bone structure in which non-denatured type I collagen is integrated, is prepared by selective extraction of bone tissue of human or animal origin. The selective extractant is an aqueous solution of 2-10 molar urea, and the extraction step is conducted at preferably 10.degree.-30.degree. C.
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