摘要
针对传统消融设备主机只有一个工作频率的局限,在不增加硬件成本和体积的基础上,设计了具有两个频率输出的逆变器.两个输出频率能够应用在等离子消融和射频消融两种手术方式中.通过控制BUCK和推挽的驱动信号,实现了输出功率可调和工作模式可切换;通过增加过流保护电路,保障了手术过程的安全性.电学实验结果表明,系统的两个工作频率都有上升沿好、尖峰小的输出波形.生物实验结果表明,系统具有较好的手术消融效果,消融速度快,对正常组织的损伤小,有利于患者恢复.
Nowadays, electrosurgical ablation operation is more and more widely used in clinical medicine. But the traditional ablation device host has only one operating frequency, and the surgical function is single. A new dual-frequency inverter is designed in this paper, the system provides two output frequencies based on no additional hardware cost and volume, and is used in two ablation procedures： plasma ablation and radiofrequency ablation. The control circuit mainly controls the driving signals of the BUCK and the push-pull so as to achieve the adjustable output power and the working mode switching. Increasing over-current protection circuit ensures the safety of surgical procedures. Electrical experimental results show that the two operating frequencies of the system have a good rising edge and a small peak output waveform. At the same time, biological experiment results show that the system has a good effect of surgical ablation, ablation speed, tiny damage to normal tissue, is conducive to the recovery of patients.
出处
《杭州电子科技大学学报（自然科学版）》
2017年第4期10-14,共5页
Journal of Hangzhou Dianzi University：Natural Sciences
基金
浙江省重大科技专项资助项目(2014C03017)
