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Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices
Generally minimally invasive surgery is performed using an endoscope and other instruments including electrosurgical units (ESUs), and the adhesion of tissue to electrodes is a major concern. The mechanism governing this tissue sticking, especially the influence of high-frequency electric field, is...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society Publishing
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6083695/ https://www.ncbi.nlm.nih.gov/pubmed/30109069 http://dx.doi.org/10.1098/rsos.180125 |
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author | Zheng, Liang Wan, Jianfei Long, Yunjiang Fu, Helin Zheng, Jing Zhou, Zhongrong |
author_facet | Zheng, Liang Wan, Jianfei Long, Yunjiang Fu, Helin Zheng, Jing Zhou, Zhongrong |
author_sort | Zheng, Liang |
collection | PubMed |
description | Generally minimally invasive surgery is performed using an endoscope and other instruments including electrosurgical units (ESUs), and the adhesion of tissue to electrodes is a major concern. The mechanism governing this tissue sticking, especially the influence of high-frequency electric field, is still unclear. In this study, the effect of high-frequency electric field on the tissue sticking upon electrodes was investigated. The electrosurgical cutting test was performed on ex vivo fresh porcine liver under blend mode using a monopolar ESU. A heat-adherence test without electric field was used as a control. For the control group, the electrode was heated and maintained at a certain temperature and directly in contact with porcine liver. Both sticking tissues obtained from these two tests are partially carbonized porcine liver tissue, but their microstructure and bonding with electrode are obviously different. The sticking tissue formed just under heat is composed of biggish nanoparticles of different sizes which are loosely aggregated and has a weak bonding with the electrode, while the sticking tissue from the electrosurgical cutting test consists of tightly packed fine nanoparticles of equable size as a result of thermo-electric coupling and has a strong bonding with the electrode. Obviously, high-frequency electric field plays an extremely important role in the formation of the sticking tissue. It is the thermo-electric coupling that underlies the function of minimally invasive electrosurgical devices, and the effect of high-frequency electric field cannot be ignored in the tissue sticking study and anti-sticking strategies. |
format | Online Article Text |
id | pubmed-6083695 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-60836952018-08-14 Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices Zheng, Liang Wan, Jianfei Long, Yunjiang Fu, Helin Zheng, Jing Zhou, Zhongrong R Soc Open Sci Physics Generally minimally invasive surgery is performed using an endoscope and other instruments including electrosurgical units (ESUs), and the adhesion of tissue to electrodes is a major concern. The mechanism governing this tissue sticking, especially the influence of high-frequency electric field, is still unclear. In this study, the effect of high-frequency electric field on the tissue sticking upon electrodes was investigated. The electrosurgical cutting test was performed on ex vivo fresh porcine liver under blend mode using a monopolar ESU. A heat-adherence test without electric field was used as a control. For the control group, the electrode was heated and maintained at a certain temperature and directly in contact with porcine liver. Both sticking tissues obtained from these two tests are partially carbonized porcine liver tissue, but their microstructure and bonding with electrode are obviously different. The sticking tissue formed just under heat is composed of biggish nanoparticles of different sizes which are loosely aggregated and has a weak bonding with the electrode, while the sticking tissue from the electrosurgical cutting test consists of tightly packed fine nanoparticles of equable size as a result of thermo-electric coupling and has a strong bonding with the electrode. Obviously, high-frequency electric field plays an extremely important role in the formation of the sticking tissue. It is the thermo-electric coupling that underlies the function of minimally invasive electrosurgical devices, and the effect of high-frequency electric field cannot be ignored in the tissue sticking study and anti-sticking strategies. The Royal Society Publishing 2018-07-11 /pmc/articles/PMC6083695/ /pubmed/30109069 http://dx.doi.org/10.1098/rsos.180125 Text en © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Physics Zheng, Liang Wan, Jianfei Long, Yunjiang Fu, Helin Zheng, Jing Zhou, Zhongrong Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices |
title | Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices |
title_full | Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices |
title_fullStr | Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices |
title_full_unstemmed | Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices |
title_short | Effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices |
title_sort | effect of high-frequency electric field on the tissue sticking of minimally invasive electrosurgical devices |
topic | Physics |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6083695/ https://www.ncbi.nlm.nih.gov/pubmed/30109069 http://dx.doi.org/10.1098/rsos.180125 |
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