Other

Kuraray Co., Ltd.

Nakashima Medical Co., Ltd.

Ohta Inc.

Akiyoshi Osaka

Satoshi Hayakawa

Kanji Tsuru

Keizo Ohta

Koichi Kuramoto

Yoshinari Miura

Masayuki Asada

Atsushi Sugino

Kenji Doi

Keiko Koyano

Hirohisa Iida

Chikara Ohthuki

Katsuaki Takahashi

By forming a bone-compatible implant wherein a groove or hole has been formed in the surface of a base material made of titanium metal or a titanium alloy at its joint with a bone tissue and the groove or hole has on the inner surface thereof an oxide film formed by heating in an oxygen-containing atmosphere, apatite is allowed to deposit on the inner surface of the groove or hole easily. Thus, an implant is provided which can be attached to a bone within a relatively short period of time even without resorting to bone cement.

Bone-compatible implant and method of producing the same

A biocompatible implant for medical use having a layer of titanium or titanium alloys on its surface. The implant is electrochemically treated by using it for an anode in an electrolyte solution containing calcium ions so as to produce a layer of hydrated oxides or hydrated oxide gels, or is subject to an anodic treatment. Subsequently the implant is subject to another electrochemical surface treatment where the implant is employed as a cathode so as to yield a layer that involves or is adsorbed with calcium ions, thus forming on the implant a hydrated gel layer that has an excellent ability of forming apatite.

Biocompatible titanium implant for medical use

A biocompatible titanium implant with a modified exterior surface having a covering layer that comprises a hydrated titania gel. The exterior surface of the titanium implant is processed by a hydrogen peroxide aqueous solution that contains metal ions which not only promotes a reaction between the titanium implant and the hydrogen peroxide aqueous solution but also provides a high apatite formation ability to the hydrated titania gel on the surface of the implant.

Biocompatible titanium implant

A glass ceramic comprising at least 90 weight percent of a glass composed of

Glass ceramics

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Okayama, Japan

Akiyoshi Osaka