The sheath and the catheter and the shrubbery type medical application internal professional thesis device which has with internal professional thesis and the bumper which is arranged between the sheath and the catheter. The said bumper has degree of freedom of motion at least in regard to the catheter.シースと、カテーテルと、体内プロテーゼと、シースとカテーテルの間に配置されたバンパーとを備えた植込み型医療用体内プロテーゼ装置。該バンパーは、カテーテルに関して少なくともある程度の運動の自由度を有する。