An integrated optoelectronic fiber for simultaneous transmission of laser and electrical current and validation of tissue vaporization in ex vivo pig kidneys
10.12483/j.issn.1009-8291.2026.02.013
- VernacularTitle:一种可同时传输激光和电流的集成光纤及其离体猪肾组织汽化功能验证
- Author:
Dongchong SUN
1
;
Yutao ZHANG
1
;
Likun GAI
2
;
Chenglin ZHANG
3
;
Yanna WANG
4
;
Hao ZHANG
1
;
Yalin SUN
5
;
Yongmei WANG
6
Author Information
1. Department of Urology, Qishan Hospital of Yantai, Yantai 264002, China
2. Department of Operating Room, Qishan Hospital of Yantai, Yantai 264002, China
3. Department of Medical Training Center, Qishan Hospital of Yantai, Yantai 264002, China
4. Department of Material Supply Section, Qishan Hospital of Yantai, Yantai 264002, China
5. Department of Intensive Care Unit, Qishan Hospital of Yantai, Yantai 264002, China
6. Department of Health Education Section, Qishan Hospital of Yantai, Yantai 264002, China
- Publication Type:Journal Article
- Keywords:
thulium laser;
plasma;
electrosurgery;
integrated optoelectrical fiber;
tissue vaporization;
urologic surgery
- From:
Journal of Modern Urology
2026;31(2):168-171
- CountryChina
- Language:Chinese
-
Abstract:
Objective To design and fabricate an integrated optoelectrical fiber to enable the simultaneous transmission of high-power laser and electrical current, thereby developing a novel tool for urological surgery.Methods A miniature metal sleeve was installed at the front end of a medical high-energy optical fiber, and corresponding conductive circuits were configured. The fiber was connected to a fiber thulium laser and a bipolar plasma generator simultaneously. Experiments of simulated vaporization were conducted on ex vivo porcine kidney tissues using thulium laser (50 W), plasma (100 W), and thulium laser + plasma (50 W+100 W), respectively. Tissue removal efficiency was calculated using the weighing method:tissue clearance rate (g/min)=[mass before vaporization (g) - mass after vaporization (g)]/vaporization time (min). Lateral tissue thermal damage was assessed with hematoxylin-eosin (HE) staining. One-way analysis of variance and least significant difference test were used for statistical analysis.Results The integrated optoelectrical fiber was successfully constructed, which could simultaneously and continuously transmit thulium laser and plasma electrocision current. The tissue clearance rate of the thulium laser+plasma group was significantly higher than that of the thulium laser group and plasma group [(0.49±0.13) g/min vs. (0.14±0.02) g/min vs. (0.11±0.04) g/min, P＜0.001]. The average lateral thermal damage depth of the thulium laser + plasma group showed no statistically significant difference compared to the thulium laser group [(985.5±178.5) μm vs.(957.5±197.4) μm, P＞0.05], but both were significantly higher than that of the simple plasma group [(499.6±78.0) μm] (P＜0.001). Conclusion The thulium laser + plasma energy transmitted simultaneously by the integrated optoelectrical fiber can vaporize kidney tissue more efficiently without additional thermal damage.
