Patent ID: 7485135
Filing Date: 2009-02-03
Classification: A61B,F16B

Abstract:
1. A device for fixing surgical implants comprising a rivet, the rivet comprising: a rivet shaft extending from a rear end to a front end coaxial to a central axis and having an outer circumferential surface, the front end positioned axially opposite the rear end, the rivet having a cylindrical through-hole extending coaxially there through, and at least two grooves extending along the outer circumference between the front end and the rear end and parallel to the central axis over a length L, the grooves having a radial depth t measured from the outer circumferential surface, the radial depth t less than the radial depth from the outer circumferential surface to the through-hole prior to a tearing of the rivet shaft into a closed state, wherein: the rivet is formed from a material having a ratio of tensile strength (Rm in N/mm2) to elongation at break (A5 in %) of between 10:1 and 50:1; and the rivet shaft defines at least one slot having a first end intersecting the shaft front end and extending into the through-hole and a second end extending parallel to the central axis into a corresponding one of the grooves prior to a tearing of the rivet shaft into a closed state, the at least one slot extending from a first end intersecting with the corresponding groove and extending toward the front end of the shaft tapering through a thickness of the shaft toward the central axis to open into the through-hole.