A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 27/12 (2006.01)
Patent
CA 2529418
A medical bone prosthetic material satisfying all the property requirements of (1) causing no tissue impairment, (2) exhibiting osseous conduction, (3) realizing bone replacement and (4) having a mechanical strength required for bone prosthesis. A medical bone prosthetic material composed mainly of apatite carbonate is produced by providing a calcium compound in block form containing substantially no powder and a solution containing a phosphate, at least one of which contains carbonate groups and bringing the calcium compound blocks into contact with the phosphate solution to thereby form apatite carbonate without performing sintering. The calcium compound blocks are preferably those produced from an artificially synthesized calcium compound, especially preferably a foamed calcium compound.
La présente invention concerne matériau prothétique osseux médical qui satisfait à toutes les propriétés requises à savoir : (1) pas de dégradation de tissu, (2) conduction osseuse, (3) remplacement osseux et (4) résistance mécanique requise pour une prothèse osseuse. Un matériau prothétique osseux médical principalement composé de carbonate apatite est produit à partir d'un composé de calcium sous forme de bloc ne contenant sensiblement pas de poudre et d'une solution contenant un phosphate, un de ces composés au moins contient des groupes carbonate. Les blocs de composé calcium sont mis en contact avec la solution phosphate de façon à former ainsi un carbonate apatite sans effectuer de frittage. Ces blocs de composé calcium sont de préférence des blocs produits à partir d'un composé calcium artificiellement synthétisé, et de préférence à partir d'un composé calcium en mousse.
Ishikawa Kunio
Matsuya Shigeki
Nakagawa Masaharu
Udou Kouichi
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Kyushu Tlo Company Limited
Kyushu University National University Corporation
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