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Minimization of transport of cancer cells

  • US 6,203,517 B1
  • Filed: 06/04/1998
  • Issued: 03/20/2001
  • Est. Priority Date: 06/04/1998
  • Status: Expired due to Fees
First Claim
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1. A surgical apparatus for reducing cancer cell transportation when the apparatus is used to operate on cancerous tissue, comprising:

  • an instrument having an operative zone defined thereon for physical engagement with a patient'"'"'s body tissue, the instrument having a foraminous rigid outer shell disposed in the operative zone, the foraminous rigid outer shell having a plurality of perforations defined therein, wherein the perforations each have a diameter less than one-hundredth of a minimum cross sectional diameter of the operative portion of the instrument, the instrument having a fluid supply channel defined therein the supply channel being in fluid communication with the perforations for diffusing a flushing fluid out the perforations throughout the operative zone, so that adhesion of tissue to the operative zone of the instrument is reduced;

    a fluid supply source communicated with the fluid supply channel for supplying flushing fluid to the fluid supply channel at a pressure; and

    wherein the perforations have a size and density and the pressure is sufficient to dislodge a majority of otherwise adhered tissue from the outer shell and to thereby reduce cancer cell transportation when the instrument is used to operate on cancerous tissue.

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