PROBLEM TO BE SOLVED: To provide a bone conjugation device that transplants a coat that is formed on the surface to a bone without peeling.SOLUTION: The bone conjugation device 10 includes: an approximately cylindrical sleeve member 1 comprising a biodegradable material which has a hole 3 penetrated in the longitudinal direction, and is constituted in a manner to be expandable in the radial direction at least at a part in the longitudinal direction and a bar member 2 comprising a biodegradable material which has an insertion end having an outer diametrical dimension being smaller than a mouth diameter of the hole 3 at one end, and is inserted in the hole 3 from the insertion end. The outer peripheral surface of the bar member 2 and the internal surface of the hole 3 have a shape in which the outer diametrical dimension of the bar member 2 relatively and gradually expands to a dimension which is larger than the inner diametrical dimension of the hole 3 at a part to the inner diametrical dimension of the hole 3 accompanying the insertion of the bar member 2 into the hole 3 for the bone conjugation device 10.COPYRIGHT: (C)2013,JPO&INPIT【課題】表面に形成された被膜を剥離させることなく骨に移植する。【解決手段】長手方向に貫通する孔3を有し長手方向の少なくとも一部分において半径方向に拡張可能に構成された生分解性材料からなる略筒状のスリーブ部材1と、孔3の一端における口径よりも小さい外径寸法を有する挿入端を有し該挿入端から孔3内に挿入される生分解性材料からなる棒部材2とを備え、該棒部材2の外周面および孔3の内面は、棒部材2の孔3への挿入に従って棒部材2の外径寸法が孔3の内径寸法に対して一部分における孔3の内径寸法よりも大きな寸法まで相対的に漸次拡大する形状を有する骨接合具10を提供する。【選択図】図1
