1. Surgical Electrotechnology Presenter:Ren-Yui Chen Adviser:Dr. Yi-Chun Du Date:2014/12/03.

2. Outline Introduction Evolutionary Results Discussion&Conclusisions

3. Introduction (1/5) Electrosurgical Unit(ESU)-Evolution  Introduction ESU evolution from 1891-1980 First documented Surgical Electrotechnology  The Surgical Electrotechnology to treat an ulcer on the hand of a Paris musician

4. Introduction (2/5) Electrosurgical Instrumentation origin  The real foundation for the application of electrical currents in surgical procedures by 1891 D'Arsonval 圖片來源： http://zh.wikipedia.org/

5.  Early combination D'Arsonval (high current) Introduction (3/5) 圖片來源： http://www.electrotherapymuseum.com/

6. Introduction (3/4) Cutting waveform oscillator Coagulation wave form spark gap generator ESU circuit diagram of the second generation ESU circuit diagram of the third generation

7. Introduction (5/5)  First Surgical Electrotechnology

8. Evolutionary (1/4)  A simplified schematic diagram of a classic spark gap ESU

9. Evolutionary (2/4)  Block diagram of solid-state electrosurgical unit

10. Evolutionary (3/4)  Differential electrosurgical current fault monitor

11. Evolutionary (4/4)  ESU Protector 圖片來源： http://penny2984.pixnet.net/

12. Thanks for Your Attention