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

Outline Introduction Evolutionary Results Discussion&Conclusisions

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

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：

 Early combination D'Arsonval (high current) Introduction (3/5) 圖片來源：

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

Introduction (5/5)  First Surgical Electrotechnology

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

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

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

Evolutionary (4/4)  ESU Protector 圖片來源：

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