Proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating
The electrocautery is an essential device in surgical operations, capable of performing both incisions and hemostasis. Hemostasis can be achieved by charring the blood, but issues such as re-bleeding due to adhesion on the electrode surface and the generation of surgical smoke have been noted. In th...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2024-11-01
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| Series: | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
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| Online Access: | https://www.jstage.jst.go.jp/article/jamdsm/18/6/18_2024jamdsm0083/_pdf/-char/en |
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| author | Takayuki TOKOROYAMA Keiko OH Motoyuki MURASHIMA Noritsugu UMEHARA Takayuki YOROZU Junichi UCHIDA |
| author_facet | Takayuki TOKOROYAMA Keiko OH Motoyuki MURASHIMA Noritsugu UMEHARA Takayuki YOROZU Junichi UCHIDA |
| author_sort | Takayuki TOKOROYAMA |
| collection | DOAJ |
| description | The electrocautery is an essential device in surgical operations, capable of performing both incisions and hemostasis. Hemostasis can be achieved by charring the blood, but issues such as re-bleeding due to adhesion on the electrode surface and the generation of surgical smoke have been noted. In this study, we aimed to suppress the adhesion of charred blood and the generation of surgical smoke by using silicone-coated electrodes to prevent blood adhesion. To investigate the causes of surgical smoke, we used simulations to clarify the Joule heating and convection of blood associated with discharge using axisymmetric models with flat and spherical cylinder tips. Furthermore, the impact of the presence or absence of silicone coating on the generation of surgical smoke and the movement of heat in the blood during discharge experiments using commercially available electrode shapes was clarified through high-speed infrared camera imaging. As a result, it was confirmed that, compared to commercial electrodes without silicone coating, in the case of side-exposed electrodes, unidirectional heat transfer on the blood surface was observed. Additionally, it was revealed that the amount of surgical smoke decreased when small bubbles were generated in the presence of silicone coating and suppressing spark generation around the electrode. From these results, it was found that side-exposed electrodes, which generate small bubbles and directional convection such as jet-type flow within the blood during discharge, are effective in suppressing surgical smoke. |
| format | Article |
| id | doaj-art-31f29efd7c524cb7b1f1e3c6eb16e3eb |
| institution | Kabale University |
| issn | 1881-3054 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| spelling | doaj-art-31f29efd7c524cb7b1f1e3c6eb16e3eb2024-11-28T05:20:33ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542024-11-01186JAMDSM0083JAMDSM008310.1299/jamdsm.2024jamdsm0083jamdsmProposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heatingTakayuki TOKOROYAMA0Keiko OH1Motoyuki MURASHIMA2Noritsugu UMEHARA3Takayuki YOROZU4Junichi UCHIDA5Department of Micro-Nano Mechanical Science and Engineering, Nagoya UniversityDepartment of Micro-Nano Mechanical Science and Engineering, Nagoya UniversityDepartment of Mechanical Systems Engineering, Tohoku UniversityDepartment of Micro-Nano Mechanical Science and Engineering, Nagoya UniversityNihon Parkerizing, Central Research LaboratoriesNihon Parkerizing, Central Research LaboratoriesThe electrocautery is an essential device in surgical operations, capable of performing both incisions and hemostasis. Hemostasis can be achieved by charring the blood, but issues such as re-bleeding due to adhesion on the electrode surface and the generation of surgical smoke have been noted. In this study, we aimed to suppress the adhesion of charred blood and the generation of surgical smoke by using silicone-coated electrodes to prevent blood adhesion. To investigate the causes of surgical smoke, we used simulations to clarify the Joule heating and convection of blood associated with discharge using axisymmetric models with flat and spherical cylinder tips. Furthermore, the impact of the presence or absence of silicone coating on the generation of surgical smoke and the movement of heat in the blood during discharge experiments using commercially available electrode shapes was clarified through high-speed infrared camera imaging. As a result, it was confirmed that, compared to commercial electrodes without silicone coating, in the case of side-exposed electrodes, unidirectional heat transfer on the blood surface was observed. Additionally, it was revealed that the amount of surgical smoke decreased when small bubbles were generated in the presence of silicone coating and suppressing spark generation around the electrode. From these results, it was found that side-exposed electrodes, which generate small bubbles and directional convection such as jet-type flow within the blood during discharge, are effective in suppressing surgical smoke.https://www.jstage.jst.go.jp/article/jamdsm/18/6/18_2024jamdsm0083/_pdf/-char/enelectrocauteryside exposed type electrodesilicone coatingsuppression of coagulated bloodsurgical smoke |
| spellingShingle | Takayuki TOKOROYAMA Keiko OH Motoyuki MURASHIMA Noritsugu UMEHARA Takayuki YOROZU Junichi UCHIDA Proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating Journal of Advanced Mechanical Design, Systems, and Manufacturing electrocautery side exposed type electrode silicone coating suppression of coagulated blood surgical smoke |
| title | Proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating |
| title_full | Proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating |
| title_fullStr | Proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating |
| title_full_unstemmed | Proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating |
| title_short | Proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating |
| title_sort | proposal of a model for the influence of coating area on the electric field at the tip of electrocautery for suppressing tip charring and surgical smoke generation due to blood heating |
| topic | electrocautery side exposed type electrode silicone coating suppression of coagulated blood surgical smoke |
| url | https://www.jstage.jst.go.jp/article/jamdsm/18/6/18_2024jamdsm0083/_pdf/-char/en |
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