基于超声引导的微细Z-pin植入系统

费少华,丁会明,汪海晋,李江雄

Ultrasound-guided fine Z-pin insertion system

Shao-hua FEI,Hui-ming DING,Hai-jin WANG,Jiang-xiong LI

图 13 超声振子的阻抗特性

Fig.13 Impedance characteristics of ultrasonic vibrator