Artificial bone formed from apatite/collagen composite and capable of being absorbed and replaced by autogenous bone

摘要

An artificial bone 6 capable of being absorbed and replaced by an autogenous bone is disclosed which comprises a cylindrical body 5 that comprises at least an apatite/collagen composite layer 1a and a collagen layer 1b. The cylindrical body may be obtained by overlapping and rolling at least an apatite/collagen composite sheet and a collagen sheet or by rolling a sheet with an apatite/collagen composite layer and a collagen layer. A hollow center portion 4 of the cylindrical body penetrating from one end surface to the other end surface has a diameter of 100-1000 µm. The apatite/collagen composite layer and the collagen layer may have pores with a diameter of 100-1000μm at a density of 1 or more per 1 cm2. The artificial bone may be obtained by bundling and cross-linking pluralities of the cylindrical bodies. A method for the production of such an artificial bone is also disclosed.