在射频诱导肠吻合术中减少组织热损伤的新型电极。

IF 1.7 4区医学 Q2 SURGERY

Minimally Invasive Therapy & Allied Technologies Pub Date : 2024-04-01 Epub Date: 2023-12-26 DOI:10.1080/13645706.2023.2297774

Xupo Xing, Chengli Song

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引用次数: 0

摘要

目的：本研究旨在设计一种新型电极，以减少射频诱导肠吻合术中的组织热损伤：通过体外实验和有限元分析，我们开发并比较了两种电极（环形电极和梅花电极，梅花电极的新型结构设计使中间融合区的截面缩小了近 80%）：与环形电极组相比，梅花电极组获得了稍高的平均强度，拉力和爆裂压结果分别从 9.7 ± 1.47 N、84.0 ± 5.99 mmHg 增加到 11.1 ± 1.71 N、89.4 ± 6.60 mmHg，并且在对目标区域施加 20 kPa 的压缩压力、120 W 的射频能量和 8 s 的焊接持续时间以实现吻合时，组织热损伤显著减少。此外，Plum电极的新颖结构设计可抵消肠蠕动产生的张力，增强吻合区的生物力学强度。组织学观察显示，两层肠组织的融合区连接紧密，厚度减小：结论：新型电极（梅花电极）可减少射频诱导肠吻合术中的组织热损伤。

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A novel electrode for reducing tissue thermal damage in radiofrequency-induced intestinal anastomosis.

Purpose: This study aimed to design a novel electrode for reducing tissue thermal damage in radiofrequency-induced intestinal anastomosis.

Material and methods: We developed and compared two electrodes (Ring electrode, and Plum electrode with reduced section of the middle fusion area by nearly 80% arising from novel structural design) by performing ex-vivo experiments and finite element analysis.

Results: In contrast to the Ring electrode group, slightly higher mean strength is acquired with the tensile force and burst pressure results increasing from 9.7 ± 1.47 N, 84.0 ± 5.99 mmHg to 11.1 ± 1.71 N, 89.4 ± 6.60 mmHg, respectively, as well as a significant reduction in tissue thermal damage for the Plum electrode group, with compression pressure of 20 kPa, RF energy of 120 W and welding duration of 8 s applied to the target regions to achieve anastomosis. Besides, the novel structural design of the Plum electrode can counteract the tension generated by intestinal peristalsis and enhance the biomechanical strength of the anastomotic area. The histological observation showed that the fusion area of the two-layer intestinal tissue is tightly connected with decreased thickness.

Conclusion: The novel electrode (Plum electrode) could reduce tissue thermal damage in radiofrequency-induced intestinal anastomosis.

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来源期刊

Minimally Invasive Therapy & Allied Technologies 医学-外科

CiteScore

3.80

自引率

5.90%

发文量

审稿时长

6-12 weeks

期刊介绍： Minimally Invasive Therapy and Allied Technologies (MITAT) is an international forum for endoscopic surgeons, interventional radiologists and industrial instrument manufacturers. It is the official journal of the Society for Medical Innovation and Technology (SMIT) whose membership includes representatives from a broad spectrum of medical specialities, instrument manufacturing and research. The journal brings the latest developments and innovations in minimally invasive therapy to its readers. What makes Minimally Invasive Therapy and Allied Technologies unique is that we publish one or two special issues each year, which are devoted to a specific theme. Key topics covered by the journal include: interventional radiology, endoscopic surgery, imaging technology, manipulators and robotics for surgery and education and training for MIS.