Title :
Numerical models of bipolar electrode electrosurgical current fields
Author :
Pearce, John A. ; Magnusen, Todd A.
Author_Institution :
Biomed. Eng. Program, Texas Univ., Austin, TX, USA
Abstract :
Numerical finite difference method models of bipolar electrosurgical electrode fields reveal non uniform power density patterns corresponding approximately to thermal damage fields observed in histologic sections. Predicted electrode impedance compares favorably with experimentally measured values. The results may be used to predict transient temperature field histories from which damage extent may be estimated
Keywords :
bioelectric phenomena; biothermics; electric fields; electric impedance; finite difference methods; surgery; bipolar electrode electrosurgical current fields; damage extent; electrode impedance; histologic sections; nonuniform power density patterns; numerical finite difference method models; thermal damage fields; transient temperature field histories; Arteries; Biomedical electrodes; Biomedical engineering; Biomedical measurements; Conductivity; Finite difference methods; Impedance; Laplace equations; Numerical models; Thermal engineering;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.415147
