PROBLEM TO BE SOLVED: To provide a production method of a device for implant capable of highly satisfying requirements of (A) being bound with bone even in a situation of applying a side load, (B) being superior in a binding power with the bone from the first of planting, (C) being not largely decreased in the binding power with the bone even in early period of planting, (D) having the large binding power with the bone and (E) enabling production at low cost, and also provide the device for implant.SOLUTION: A production method of a device for implant has a rough surface forming step of forming irregularities on the surface of a member body comprising a material containing titanium, a hydroxy group forming step of forming a hydroxy group on the surface of the member body with the irregularities formed thereon, and a calcium modification step of modifying calcium on the surface of the member body simultaneously with the hydroxy group forming step or after the hydroxy group forming step. The rough surface forming step forms the irregularities on the surface of the member body so that the surface roughness Ra of the member body may become 2 μm or more by acid etching treatment to immerse the member body in an acid aqueous solution.SELECTED DRAWING: Figure 3【課題】（Ａ）側方荷重を負荷した状況でも骨と結合すること、（Ｂ）植立当初から骨との結合力に優れること、（Ｃ）植立初期にも骨との結合力が大きくは低下しないこと、（Ｄ）骨との結合力が大きいこと、（Ｅ）安価に製造できること、の要件を高度に満足することができるインプラント用デバイスの製造方法およびインプラント用デバイスを提供する。【解決手段】チタンを含む素材から成る部材本体の表面に凹凸を形成する粗面形成工程と、凹凸が形成された部材本体の表面に水酸基を形成する水酸基形成工程と、水酸基形成工程と同時、または水酸基形成工程の後、部材本体の表面にカルシウムを修飾させるカルシウム修飾工程とを有する。粗面形成工程は、部材本体を酸性水溶液に浸漬する酸エッチング処理により、部材本体の表面粗さＲａが２μｍ以上になるよう、部材本体の表面に凹凸を形成する。【選択図】図３
