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Penetration limiting stop elements for a drill bit used for bone tissue

  • US 6,514,258 B1
  • Filed: 08/13/1999
  • Issued: 02/04/2003
  • Est. Priority Date: 11/04/1998
  • Status: Expired due to Term
First Claim
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1. A stop element for use with a tool having a working portion that assists in creating a bore in living bone, comprising:

  • a generally tubular main body for surrounding said tool, said main body including a connecting portion with a structure for affixing said stop element relative to said tool, said connecting portion includes a plurality of distinct sections, adjacent ones of said plurality of distinct sections are separated by slots for providing flexibility to said connecting portion, said main body further including an extending portion for fitting over said working portion of said tool, said extending portion being positioned at a known and fixed position along said working portion of said tool when said stop element engages said bone and including a plurality of grooves for severing said extending portion at predetermined lengths.

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