United States Patent
US Patent 7467075: Three-dimensional finite-element code for…
US 7467075 · granted 2008-12-16
Abstract
A system and method for performing a simulation of an electrosurgical procedure are disclosed. The method includes the steps of generating a three-dimensional medium, which includes one or more material regions representing a physical object. The method also includes the steps of dividing the medium into multiple hexahedron elements to generate a three-dimensional conformal mesh and assigning each element to the material region. The method further includes the steps of calculating an electrical energy solution and a thermal transport solution and generating graphical representations illustrating one or more aspects of the electrical energy and the thermal transport solutions.
| Patent Number | 7467075 |
|---|---|
| Title | Three-dimensional finite-element code for electrosurgery and thermal ablation simulations |
| Filed | 2005-12-21 |
| Granted | 2008-12-16 |
| Inventor(s) | Humphries; Stanley, Rick; Kyle R., Schechter; David A., Goldberg; Nahum |
| Assignee | Covidien AG |
| CPC Classification | G06F 9/45 |
| Number of Claims | 46 |
Abstract
A system and method for performing a simulation of an electrosurgical procedure are disclosed. The method includes the steps of generating a three-dimensional medium, which includes one or more material regions representing a physical object. The method also includes the steps of dividing the medium into multiple hexahedron elements to generate a three-dimensional conformal mesh and assigning each element to the material region. The method further includes the steps of calculating an electrical energy solution and a thermal transport solution and generating graphical representations illustrating one or more aspects of the electrical energy and the thermal transport solutions.
Claim 1
A computer implemented method for performing a simulation of an electrosurgical procedure on tissue, the method comprising the steps of: generating a three-dimensionalmodel 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 eachelement 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 solutionas 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.
Claims
46 totalA computer implemented method for performing a simulation of an electrosurgical procedure on tissue, the method comprising the steps of: generating a three-dimensionalmodel 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 eachelement 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 solutionas 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.