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Skull clamp pin assembly

  • US 5,197,965 A
  • Filed: 07/29/1992
  • Issued: 03/30/1993
  • Est. Priority Date: 07/29/1992
  • Status: Expired due to Term
First Claim
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1. A pin assembly for use in a skull clamp comprising;

  • a cylindrical non-metallic housing having a first end and a second end and having an axially extending bore, said bore having an enlarged diameter at said first end, a plurality of spaced apart circumferential ribs surrounding the bore at said first end,a rigid pin having a conical point at a first end attached to a shank which extends to a second end of the pin, a shoulder portion between the conical point and the shank, an undercut in the shank adjacent the shoulder portion, a step in said shank having a diameter larger than the shank adapted to fit into the enlarged diameter of said bore,at least one transverse cavity in the outer surface of said non-metallic housing, a finger extending from the base of said cavity, said finger being positioned set in said cavity and extending at an angle toward said first end of said housing.

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