Implantable bone replacement materials based on calcium phosphate ceramic material in a matrix and process for the production thereof
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United States of America Patent
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Jan 5, 1982
Grant Date -
N/A
app pub date -
Jun 21, 1979
filing date -
Jun 23, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An implantable bone replacement material (body) based on completely or partially resorbable particles incorporated in a matrix material. The particles are composed of bioactive sintered calcium phosphate ceramic material having a CaO:P.sub.2 O.sub.5 composition ratio between 3:1 and 4:1. The replacement material (body) consists of a metal containing calcium phosphate ceramic material in the form of a monolayer of particles in the peripheral areas of the material (body) which serve as interfaces to the body tissue. The metal is compatible with body tissue. The ceramic particles have a size range between about 500 .mu.m and a few millimeters. The calcium phosphate particles are located so that they lie exposed on the upper surface of the material (body). Other embodiments and processes are also disclosed.
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