The artificial organ which has the computer which possesses the surface which covers the foundation and the foundation. The foundation includes with the biodegradation Characteristic metal which forms the matrix and adherence ones which promote the corrosion which is laid out inside this matrix. The surface includes the biodegradation Characteristic metal which forms the matrix. When the surface was exposed to physiological environment, the surface 1st has corrosion speed, when the foundation was exposed to physiological environment, the foundation has the 2nd corrosion speed whose aforementioned 1st is faster than corrosion speed.基礎部及び基礎部を覆う表面部を有する本体を備える人工器官。基礎部は、マトリクスをなす生体内分解性金属とこのマトリクス内に配置された腐食を促進する固着物とを含む。表面部は、マトリクスをなす生体内分解性金属を含む。表面部が生理的環境に曝されたときに表面部が第1の腐食速度を有し、基礎部が生理的環境に曝されたときに基礎部が前記第1の腐食速度より速い第2の腐食速度を有する。
