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Access trocar and related method thereof

  • US 8,906,056 B2
  • Filed: 04/30/2010
  • Issued: 12/09/2014
  • Est. Priority Date: 05/01/2009
  • Status: Active Grant
First Claim
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1. An apparatus for accessing a subject'"'"'s anatomical space having a surface, the apparatus comprising:

  • a first elongated member comprising a proximal end and a distal end, said distal end comprising a sharp end;

    a second elongated member comprising a proximal end, a distal end, a first middle portion adjacent to said distal end, and a second middle portion adjacent to said proximal end, said second middle portion of said second elongated member including a helical groove, and said distal end comprising a helical tine;

    a third elongated member comprising a longitudinal aperture, a distal end, a middle portion, and a proximal end, wherein said third elongated member at least substantially encloses said first elongated member and said second elongated member; and

    a driving mechanism including;

    a driver tab, said driver tab adapted to pass through said longitudinal aperture of said third elongated member and engage said helical groove of said second elongated member, wherein;

    if said driver tab is moved distally then said tab drives said second elongated member in a distal direction;

    if said driver tab is moved proximally then said tab drives said second elongated member in a proximal direction,wherein said helical tine is adapted to;

    engage and penetrate said surface, and wherein when said second elongated member is turned, said helical tine lifts said surface in a proximal direction.

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