Three-dimensional finite-element code for electrosurgery and thermal ablation simulations
First 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-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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Accused Products
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.
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Citations
19 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computing system for performing a simulation of an electrosurgical procedure on tissue, the system comprising:
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at least one processor coupled to a memory storing a program of instructions, wherein when the program is executed on the at least one processor, the at least one processor performs the instructions 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;
wherein at least one of the electrical energy solution and the thermal transport solution is updated as a function of the at least one property value; andan output device which outputs at least one of a graphical representation representing at least one form of the electrical energy solution and one form of the thermal transport solution. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A computer-readable storage medium storing a set of computer-executable instructions for performing a simulation of an electrosurgical procedure on tissue, the computer-executable instructions comprising the steps of:
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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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Specification