PROBLEM TO BE SOLVED: To provide a femoral component for an artificial hip joint, which reduces a force to be transmitted between a stem portion and a bone head portion.SOLUTION: The femoral component X for an artificial hip joint includes: a bone head portion 10 with a spherical body having a fit-in hole formed thereon a stem portion 20 with an engagement neck 22 to be fitted in and fixed to the fit-in hole and having a size and shape enough to be fitted into the fit-in hole, the neck being formed on the front end and the stem portion being embedded in the femur and a buffer member 30 to be held by at least a part between the inner surface of the fit-in hole and the outer surface of the engagement neck which oppose to each other, and made of an adhesively elastic body or an elastic body which is more likely to be deformed than the bone head portion and the stem portion.COPYRIGHT: (C)2012,JPO&INPIT【課題】人工股関節用の大腿骨コンポーネントにおいて、ステム部と骨頭部との間に伝わる力を緩和することを課題とする。【解決手段】人工股関節用大腿骨コンポーネントXを、嵌入孔が設けられた球状体からなる骨頭部10と、先端に前記嵌入孔に嵌め入れて固定する当該嵌入孔に嵌る大きさ及び形状を有する係合ネック22が形成された、大腿骨に埋め込まれるステム部20と、相対する前記嵌入孔内面と前記係合ネック外面との間の少なくとも一部に狭持される薄い、粘弾性体又は前記骨頭部及びステム部より弾性変形しやすい弾性体からなる緩衝部材30とから構成する。【選択図】図1
