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Instrument, system, kit and method for catheterization procedures

  • US 5,695,479 A
  • Filed: 11/01/1993
  • Issued: 12/09/1997
  • Est. Priority Date: 11/01/1993
  • Status: Expired due to Fees
First Claim
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1. An instrument for inserting or removing substances or devices into or from a target tissue or material comprising:

  • (a) a needle having an elongated shaft with at least one lumen, including a distal portion for insertion into said target tissue or material to a depth and a proximal portion which remains outside said target tissue or material into which said distal portion is inserted;

    (b) a position-sensitive feature formed at a predetermined location not solely dependent on the depth of insertion of said needle on the distal portion of said needle; and

    (c) distinctive mark associated with said proximal portion of said needle at a fixed position relative to said location of said position-sensitive feature, which indicia is observable outside of said tissue or material into which said distal portion of said needle is to be inserted and by which indicia said predetermined location of said position-sensitive feature formed at said distal portion of said needle is indicated.

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