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Three-dimensional finite-element code for electrosurgery and thermal ablation simulations

  • US 7,467,075 B2
  • Filed: 12/21/2005
  • Issued: 12/16/2008
  • Est. Priority Date: 12/23/2004
  • Status: Active Grant
First Claim
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1. A computer implemented method for performing a simulation of an electrosurgical procedure on tissue, the method comprising the steps of:

  • generating a three-dimensional model of a medium comprising at least one material region representing a physical object or a region of the tissue;

    dividing the model of the medium into a plurality of hexahedron elements to generate a three-dimensional conformal mesh;

    assigning each element to a corresponding at least one material region;

    calculating at least one of an electrical energy solution and a thermal transport solution based on at least one mathematical model, the plurality of hexahedron elements and finite element method;

    updating at least one property value of the at least one material region at least once in response to temperature changes based on an empirically derived value;

    updating at least one of the electrical energy solution and the thermal transport solution as a function of the at least one property value; and

    generating and displaying at least one graphical representation representing at least one form of the electrical energy solution and one form of the thermal transport solution on an output device.

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