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Fastener for attaching objects to bones

  • US 5,501,695 A
  • Filed: 03/21/1994
  • Issued: 03/26/1996
  • Est. Priority Date: 05/27/1992
  • Status: Expired due to Term
First Claim
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1. A rivet for expanding into a hole in a material, said rivet comprising a tubular body having an exterior surface for fitting into the hole and having a projection extending radially from a first end of the body for controlling an extent to which said rivet can extend into the hole, the body having an aperture extending therethrough from the first end to a second end wherein the aperture has a first diameter in a first portion of the body adjacent to the first end and a second diameter in a second portion of the body adjacent to the second end of the body wherein the first diameter is smaller than the second diameter to thereby form an annular step in the aperture, the exterior surface at the second portion tapers inward toward the second end which has an end surface that is beveled toward the aperture, said body further includes a plurality of elongated slots extending along the exterior surface spaced from both the first end and the second end and communicating with the aperture and said elongated slots defining longitudinal ribs in the body between the slots, wherein the ribs expand radially into the material upon compression of the body.

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