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

fYear

1994

fDate

1994

Firstpage

794

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IEMBS.1994.415147

Filename

415147