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Surgical Metal Detection Apparatus and Methods

  • US 20080294036A1
  • Filed: 04/22/2008
  • Published: 11/27/2008
  • Est. Priority Date: 04/23/2007
  • Status: Abandoned Application
First Claim
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1. A surgical metal detection apparatus, comprising:

  • an elongate, generally tubular cannula having a first end, a second end opposite the first end, and a passageway between the first and second ends that is open at both ends;

    an elongate removable element having first and second ends corresponding to the first and second ends of the cannula, the removable element being sized and adapted (1) to be removably retained in an engaged position substantially within the passageway of the cannula such that the second end of the removable element is proximate to the second end of the cannula, and (2) to be removed from the cannula to allow for the passage of a removal tool through the cannula;

    a detection coil within the cannula or the removable element; and

    a detection circuit connected to the detection coil, the detection circuit and detection coil being constructed and adapted to detect the presence of a metallic element proximate to the second end of the cannula or the second end of the removable element when the removable element is in its engaged position substantially within the passageway of the cannula.

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