Bone replacement material
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United States of America Patent
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Jul 3, 2007
Grant Date -
Jan 15, 2004
app pub date -
Jun 10, 2003
filing date -
Jun 12, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A bone replacement material for use in a treatment for repairing a vertebral body compression fracture is formed into a pellet having a roughly polyhedral shape. Each pellet having the roughly polyhedral shape has a pair of opposite surfaces, in which one of the opposite surfaces is inclined with respect to the other surface for a predetermined angle. The angle is preferably in the range of 10 to 60.degree.. Further, the volume of each pellet of the bone replacement material 1 is in the range of 13 to 239 mm3. Furthermore, the bone replacement material is formed of calcium phosphate based compound having the Ca/P ratio of 1.0 to 2.0. By using such a bone replacement material, it is possible to carry out packing operation of the bone replacement material into a collapsed vertebral body smoothly, reliably and safely.
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