PROBLEM TO BE SOLVED: To provide each surface of various apparatuses, equipment or the like including implants for surgery and medical devices functionalized so as to contain a surface region having an antiinfective medicine.SOLUTION: Provided are a medical device and an implant each having a surface in which the surface of a metal, a metal oxide or a polymer is provided with an organic phosphate-containing functionalized layer and a quaternary ammonium antiinfective medicine arranged on the functionalized layer, the functionalized layer includes at least one part or functional group capable of adhering the quaternary ammonium antiinfective medicine and at least part or functional group capable of adhering the functionalized layer to the surface.【課題】抗感染症薬を有する表面領域を含むように官能化された手術用のインプラントや医療デバイスを始めとする種々の機器や備品等の表面の提供。【解決手段】金属、金属酸化物又はポリマーの表面上に、有機ホスホン酸塩を含む官能化層と、該官能化層上に配置された第四級アンモニウム抗感染症薬を含み、該官能化層は、該第四級アンモニウム抗感染症薬を接着させることができる部分又は官能基を少なくとも１つと、該官能化層を該表面に接着できる部分又は官能基を少なくとも１つ含む表面を持つ、医療デバイス及びインプラント。【選択図】なし
