Bone bending knife and bone knife for prosthesis

The invention provides a bone bending knife and a bone knife for prosthesis and belongs to the field of medical instruments. The bone bending knife comprises a handle and a knife body, the knife bodycomprises a connecting part, a bending part and a knife edge, the connecting part is installed on the handle, one end of the bending part is connected with the connecting part, and the knife edge is connected with one end of the bending part and away from the connecting part; the bone knife for the prosthesis comprises the bone bending knife. The bone bending knife can renovate knee prosthesis, the knife body is provided with the bending part, patella and quadriceps femoris can be well bypassed, the lateral position of the tibial prosthesis is separated from the lateral tibial plateau, renovation of the knee joint prosthesis can be completed, and extensive bone loss is avoided while the tibial prosthesis is removed. 本发明提供了种弯骨刀和假体用的骨刀，属于医疗器械领域，弯骨刀包括手柄和刀身，刀身包括连接部、弯折部和刀口，连接部安装于手柄，弯折部的端与连接部连接，刀口与弯折部远离连接部的端连接；假体用的骨刀包括如