The artificial device (1) is an artificial device (1) including an expanded tubular frame (2) of a mesh structure and an artificial valve (3) mounted on the frame, and the artificial device (1) ) Has a large indentation (6) on one side and extends from the end of the ventricle portion (2 v) on the opposite side of the valve annulus (2 i) to the portion of the ventricle portion (2 v) close to the valve annulus (2 i) , Said indentation (6) extending to a sector in the vicinity of the prosthetic device (1) of about 90-140 , the atrial portion (2a) of the frame (2) extending towards the outside of the prosthetic device, (2 a) greatly opens from the valve annulus (2 i) toward the end of the atrium opposite to the valve annulus and includes an anchor stop (5 a) on the side surface of the valve annulus (2 i), the ventricle (2 v) It is substantially spherical or oval and has an anchor stop (5 v) on the side of the valve annulus (2 i) No.(FIG.この人工装置（１）は、メッシュ構造の拡張型管状フレーム（２）及びこのフレームにマウントされた人工弁（３）を含む人工装置（１）であって、フレーム（２）の心室部（２ｖ）は、片側に大きなへこみ（６）を有し、弁輪部（２ｉ）の反対側の心室部（２ｖ）の端から弁輪部（２ｉ）に近接する心室部（２ｖ）の部分まで縦方向に広がり、このへこみ（６）は約９０～１４０°の人工装置（１）の周辺のセクターに広がっており、フレーム（２）の心房部（２ａ）は、人工装置の外側に向かって、弁輪部（２ｉ）から該弁輪部の反対側の心房部の端に向かって大きく開き、弁輪部（２ｉ）の側面にアンカー止め（５ａ）を含み、前記心室部（２ｖ）は、実質的に球形または卵形であり、弁輪部（２ｉ）の側面にアンカー止め（５ｖ）を含む。【選択図】図１
