RESORBABLE FIXATION DEVICE WITH CONTROLLED STIFFNESS FOR TREATING BODILY MATERIAL IN VIVO AND INTRODUCER THEREFOR

摘要

A resorbable fixation device, useful for treating torn bodily material in vivo, has a tip, a head, and a cylindrically shaped shaft portion lying between said tip and said head. The shaft portion has at least one retention element protruding radially therefrom to facilitate insertion of said shaft portion longitudinally into said bodily material in a forward axial direction extending from said tip to said head and to restrict movement of said shaft portion through said bodily material in a backward axial direction opposite to said forward direction. The shaft portion has further a hollow body with at least one radial opening extending transversely through the walls surrounding said hollow body and rendering said shaft radially elastic. The walls surrounding said hollow body are provided with at least one stiffening element providing a controlled stiffness to the fixation device.