Asahi Kogaku Kogyo Kabushiki Kaisha

Other

Pentax Corporation

Yoshie Tominaga

Akira Yamamoto

Keita Abe

Masanori Nakasu

Shinichiro Kubo

Hirofumi Matsuzawa

Bone implant

A prosthetic bone material comprising a bonded and sintered product of granules of calcium phosphate compound having a particle size of at least 100 &mgr;m, each of the granules being bonded with particulates of calcium phosphate compound having a particle size of about 1 to 40 &mgr;m, in which the granules are bonded to each other while retaining their original shape, and their bonding strength is a level sufficient to maintain their own shape when the bonded and sintered product is disintegrated, produced by mixing the granules and the particulates, followed by firing the mixture at a temperature of about 800 to 1,200&deg; C.

Prosthetic bone material and process for the production of the same

Production process for spherical ceramic granules which includes pulverizing a dried product of a ceramic material; calcinating the pulverized product at a temperature of about 300 to 900.degree. C.; rotating the calcinated granules to make spherical granules; and firing the spherical granules. The spherical ceramic granules have no corner or sharp edge and projection, and thus show a high fluidity property and excellent operability.

Process for the production of spherical ceramic granules

Growing community of inventors

Saitama-ken, Japan

Yoshie Tominaga