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Bone clamp and installation tool

  • US 5,370,646 A
  • Filed: 11/16/1992
  • Issued: 12/06/1994
  • Est. Priority Date: 11/16/1992
  • Status: Expired due to Term
First Claim
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1. A bone clamping device, comprising:

  • (a) an elongated clamp pin consisting of a shaft having a proximal end for mounting on an installation tool and having a distal end for passing through a hole in a bone;

    (b) a distal hook consisting of a resilient distal wing attached to the distal end of said shaft and forming an acute angle therewith, so that said distal wing may provide a distal bone-engagement means for clamping the bone;

    (c) a proximal hook consisting of a proximal wing attached to the proximal end of said shaft and forming an acute angle therewith, so that said proximal wing may provide a means for firmly attaching the bone clamping device to the installation tool;

    (d) a plurality of resilient, peripheral notches disposed along said shaft, wherein each notch has a flat surface perpendicular to said shaft facing the distal end of the shaft and has a sloped surface facing the proximal end of the shaft; and

    (e) a clamp button having a central bore with a resilient inner lip capable of engaging said flat surface of each of said peripheral notches to prevent the button from sliding in the proximal direction, while the button is capable of resiliently sliding over said sloped surface of each notch to move in ratchet fashion toward the distal end of the shaft to provide a proximal bone-engagement means for clamping the bone;

    wherein said clamp pin and said clamp button consist of two separate components.

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