| 摘要 |
It is intended to provide a composite implant material to be used in treating articular bone/cartilage injuries such as avascular necrosis of the femoral head at the hip joint and avascular necrosis of the knee bone head, reconstructing and fixing an artificial ligament or tendon of a biological origin, bonding and fixing a bone, etc. wherein a part thereof substitutes for the bone tissue and stably bonds to a living bone at the early stage while the remainder thereof sustains a required strength for a required period of time and the whole material finally substitutes for the living bone and thus disappears. A composite implant material wherein a dense composite comprising a biodegradable/bioabsorbable polymer containing a bioabsorbable and biologically active bioceramic powder therein and a porous composite comprising a biodegradable/bioabsorbable polymer containing a bioabsorbable and biologically active bioceramic powder therein are united together. The porous composite substitutes for the bone tissue and stably bonds to a living bone at the early stage while the dense composite sustains a required strength for a required period of time and the whole material finally substitutes for the living bone and thus disappears. Owing to these characteristics, this composite implant material sufficiently meets the demand in the clinical field. ® KIPO & WIPO 2009 |
