In plant for bone fusion as for (1), in order two bodies which are adjacent mutually in the rachis (4) to be inserted between, it is constituted. In plant (1), consists of the component (2a and 2b) of two which possesses the section of C shape which arranges back to back longitudinal directions at least, is constituted from the connection territory of the aforementioned component (2a and 2b) at the same time with that, it is parallel with the axis of the aforementioned rachis and in order to transmit power between two bodies which the description above mutually are adjacent, in order to keep the solid shaft (9) and the transplantation organizational piece which are designed, it is designed, outside it is faced vis-a-vis the aforementioned solid shaft (9), the concave section of two longitudinal directions picture forming it does (6) at leastIt has the substance (2).骨融合用インプラント(1)は、脊柱における互いに隣り合う2つの椎体(4)の間に挿入されるように構成されている。インプラント(1)は、背中合わせに配置したC形の断面を有する少なくとも2つの長手方向の部材(2a、2b)からなり、かつそれにより前記部材(2a、2b)の結合領域から構成され、前記脊柱の軸と平行でかつ前記互いに隣り合う2つの椎体の間に力を伝達するように設計された中実軸(9)と、移植組織片を保持するように設計され、前記中実軸(9)に対して外側を向いている、少なくとも2つの長手方向の凹部(6)とを画成する本体(2)とを備えている。