Thermoelectrical numerical model of electrosurgical rf cutting

Dmitry E. Protsenko; John Anthony Pearce

doi:10.1117/12.427860

1 June 2001 Thermoelectrical numerical model of electrosurgical rf cutting

Dmitry E. Protsenko, John Anthony Pearce

Proceedings Volume 4247, Thermal Treatment of Tissue: Energy Delivery and Assessment; (2001) https://doi.org/10.1117/12.427860
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

We developed a 3D thermo-electrical model of RF tissue cutting that takes into account variations in electrical and thermal properties with temperature and water content, dynamics of water evaporation and thermal and electrical processes at the tissue-scalpel interface. The model predicts measurable parameters of the electric circuit (tissue impedance, ESU output RMS voltage and current) and tissue cutting rate. Results of numerical simulations suggest that high circuit impedance during electrosurgical cutting can result not only from tissue dehydration but from the configuration of the electric field as well. It appears that the area of tissue-scalpel electric contact is significantly smaller than the area of the scalpel itself but is large enough to rule out electric sparks as a major mechanism of electrosurgical cutting.

Citation Download Citation

Dmitry E. Protsenko and John Anthony Pearce "Thermoelectrical numerical model of electrosurgical rf cutting", Proc. SPIE 4247, Thermal Treatment of Tissue: Energy Delivery and Assessment, (1 June 2001); https://doi.org/10.1117/12.427860

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available