Composite material and methods of making the same
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United States of America Patent
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Jul 8, 2003
Grant Date -
Sep 19, 2002
app pub date -
Feb 27, 2002
filing date -
Apr 6, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of making artificial bone comprises providing a membrane of collagen with solutions of calcium ions and of phosphate ions on opposite sides of the membrane. The calcium ions and phosphate ions diffuse through the membrane and precipitate as a hydroxyapatite material. Control of ionic concentrations ensures that precipitation takes place within the fibrils of the membrane. The result is an artificial bone material comprising a matrix of collagen and a hydroxyapatite material deposited within the matrix.
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