Method for preparing an implantable composite material, resulting material, implant including said material, and kit therefor

Method for preparing a composite material to be implanted in a human or animal biological medium, which comprises:

• selecting or preparing at least one block of a biocompatible porous solid matrix, said matrix being mainly comprised of at least one calcium salt selected from the group consisting of calcium phosphates, calcium sulfates and calcium carbonates;
• preparing a hardenable liquid solution separate from said solid matrix, said hardenable liquid solution being adapted to form, once hardened, a hardened biocompatible solid composition mainly comprised of at least one calcium salt selected from the group consisting of calcium phosphates, calcium sulfates and calcium carbonates, and which is adapted to be entirely resorbable by the medium where the implant is to be implanted;
• immersing the matrix block in said liquid solution before the hardening thereof, for a period which allows said solution to impregnate and fill the porous volume of said matrix block to the core;
• and
• allowing the liquid solution to dry and harden into a solid composition without sintering.