an apparatus , for reinforcing bone and tools for mounting the same , has an implant including a barrel and a device . the implant can be expanded by an expanding apparatus including an outer tube , a base , a hollow body and a handle . the expanding apparatus can be bound to the implant to place the implant into a bone to be treated and adjust the expansion degree . the expanding apparatus can be replaced by an injector apparatus including a container for bone cement and an injecting handle . the injector apparatus can inject a mixture for reinforcing bone into the bone through an exit , the device , the aperture , the barrel and the window of the barrel , and into the to - be treated area .