Implants and kits for the treatment of bone injury sites and methods of treating bone injury sites

摘要

The present invention is an implant for treatment of a bone injury site, comprising a polymer porous membrane and a layer containing a biocompatible material, wherein the polymer porous membrane has a surface layer A having a plurality of pores It is a polymer porous membrane of a three-layer structure having a surface layer B and a macrovoid layer sandwiched between the surface layer A and the surface layer B, wherein the average pore diameter of the pores present in the surface layer A is The macrovoid layer is smaller than the average pore diameter of the pores present in the surface layer B, and the macrovoid layer is a partition bonded to the surface layers A and B, and a plurality of macros surrounded by the partitions and the surface layers A and B It relates to the implant which has a void and the holes in the surface layers A and B communicate with the macrovoid.