Development and application of a plasma ablation device
10.3969/j.issn.1005-202X.2025.06.015
- VernacularTitle:离子体消融装置的研制及其应用
- Author:
Minghui CHEN
1
;
Tong WU
;
Yi SHAO
;
Fugang LI
;
Liuxiao CHEN
;
Jing ZHOU
;
Hongwang WANG
;
Chengli SONG
Author Information
1. 上海理工大学健康科学与工程学院,上海 200093
- Publication Type:Journal Article
- Keywords:
low temperature plasma ablation;
bipolar pulse;
thermal injury;
ablation device
- From:
Chinese Journal of Medical Physics
2025;42(6):806-813
- CountryChina
- Language:Chinese
-
Abstract:
Although low temperature plasma ablation technology has significant advantages in clinical applications,its poor stability,high power consumption and thermal injuries to the tissues are still key factors limiting its widespread use.To address these issues,a device that uses bipolar pulses to excite plasma is developed,and it can flexibly adjust its output voltage,frequency and duty cycle,effectively reducing breakdown voltage and power consumption.By conducting simulation and saltwater discharge experiments,the excitation process of plasma is elaborated in detail.Meanwhile,the effects of two different pulse excitation modes on plasma excitation are discussed and compared.The results show that the bipolar pulse excitation mode is advantageous in reducing discharge current and breakdown voltage,and shortening the formation time of the vapor layer,which effectively relieves thermal injuries to the tissues.Finally,the broad application potential of the plasma ablation device is demonstrated in plasma ablation experiments which are conducted at different voltages,with pork as the experimental material.The study provides a new theoretical basis and practical guidance for the application of plasma ablation technology in minimally invasive surgery.
