Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps

Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps

Bibliographic Details
Main Author: Chen, Liang
Language:English
Published: Ohio University / OhioLINK 2014
Subjects:
Biomedical Engineering
Biomedical Research
ex vivo
ablation
tissue injury
electrosurgical unit
ESU
impedence
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1389353998
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou13893539982021-08-03T06:21:20Z Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps Chen, Liang Biomedical Engineering Biomedical Research ex vivo ablation tissue injury electrosurgical unit ESU impedence Previous studies on hot biopsy forceps for colorectal polypectomy indicated that simulated ablation tests could provide useful information on hot biopsy forceps design and ablation parameter optimization that would help reducing the rate of potential polypectomy complications such as perforation. In this thesis, a novel ex vivo ablation test model for colonoscopic monopolar hot biopsy forceps was designed and implemented; simulated ablation tests had also been performed on this ablation test model for (a) verifying the model design and implementation, and (b) finding the roles of the major ablation parameters in tissue injury during the ablation process. In the design of this novel ex vivo ablation test model, a body equivalent block was introduced to simulate the properties of the human body. Porcine colon was used as tissue source for the simulated ablation tests. Major ablation parameters that were tested on this model covered (a) output power level, (b) firing duration, (c) contact area at the electrode tip, and (d) electrical impedance. Simulated ablation tests that were performed on this ablation test model covered the main combinations of targeted ablation parameters. During simulated ablation tests various ablation sites were generated under different parameter combinations, which indicated that this ablation test model can be used for hot biopsy forceps ablation studies. Some ablation parameters such as output power level and firing duration had dominating effects on the resulting ablation site geometry and tissue injury. The simulated test results showed the potential applications for testing hot biopsy forceps and optimizing ablation parameters. 2014-06-09 English text Ohio University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1389353998 http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1389353998 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Biomedical Engineering
Biomedical Research
ex vivo
ablation
tissue injury
electrosurgical unit
ESU
impedence
spellingShingle Biomedical Engineering
Biomedical Research
ex vivo
ablation
tissue injury
electrosurgical unit
ESU
impedence
Chen, Liang
Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps
author Chen, Liang
author_facet Chen, Liang
author_sort Chen, Liang
title Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps
title_short Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps
title_full Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps
title_fullStr Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps
title_full_unstemmed Novel Ex Vivo Ablation Test Model for Monopolar Hot Biopsy Forceps
title_sort novel ex vivo ablation test model for monopolar hot biopsy forceps
publisher Ohio University / OhioLINK
publishDate 2014
url http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1389353998
work_keys_str_mv AT chenliang novelexvivoablationtestmodelformonopolarhotbiopsyforceps
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