PROBLEM TO BE SOLVED: To provide a power feeding device for an implantable medical apparatus being less prone to exert influence of magnetism on a portion other than a power receiving coil of the medical apparatus body by narrowing the width of a magnetic flux from a power feeding coil, and the implantable medical apparatus.SOLUTION: A medical apparatus 10 includes an apparatus body 15, and a power feeding device 50 for feeding a power to the apparatus body 15 from the outside of a body. The apparatus body 15 includes a power receiving coil 30, a secondary cell 40, and a drive device 41 being driven by the secondary cell 40. The power feeding device 50 has a power feeding coil 55 for wirelessly feeding the power to the power receiving coil 30 by electromagnetic induction. The power feeding coil 55 includes: a cylindrical coil 60 formed by helically winding a conductor wire 61 into a cylindrical shape； and an annular ring member 70 made of a magnetic material and disposed to surround an outer periphery of the cylindrical coil 60.SELECTED DRAWING: Figure 1【課題】給電コイルからの磁束幅を狭め、医療装置本体の受電コイル以外の部分に磁気による影響を及ぼしにくい、体内埋め込み型医療用装置用の給電装置及び体内埋め込み型医療装置を提供する。【解決手段】この医療装置１０は、装置本体１５と、装置本体１５に体外から給電を行う給電装置５０とを備え、装置本体１５は、受電コイル３０と、二次電池４０と、二次電池４０により駆動される駆動装置４１とを有し、給電装置５０は、受電コイル３０に電磁誘導により無線給電する給電コイル５５を有しており、給電コイル５５は、導線６１がヘリカル巻されて筒状に形成された筒状コイル６０と、磁性材料からなると共に、筒状コイル６０の外周を囲むように配置された環状のリング部材７０とを有する。【選択図】図１
