Interspinous bone implant device

A bone implant system comprising:

• a bone graft body having at least a demineralized surface for implantation at a bone site, the bone graft body comprising at least one attachment member;
• at least one bone delivery carrier including a polymer covering, said carrier configured to be attachable to the bone graft body and comprising at least one compartment;
• an affixing member for attaching the at least one bone delivery carrier to the at least one attachment member of the bone graft body;
• a demineralized bone matrix material disposed within the at least one compartment, wherein the polymer covering retains the demineralized bone matrix material for placement at the bone site and facilitates transfer of cells into and out of the polymer covering, the demineralized bone matrix material comprises fully demineralized bone fibers and surface demineralized bone chips in a ratio of 25:75 to about 75:25 fibers to chips.