Electrosurgical units – how they work and how to use them ... | 合法醫療器材資訊網

由ICordero著作·2015·被引用11次—Anelectrosurgicalunit(ESU)consistsofageneratorandahandpiecewithoneormoreelectrodes.Thedeviceiscontrolledusingaswitchonthehandpieceor ...

Electrosurgery is used routinely in eye surgery to cut, coagulate, dissect, fulgurate, ablate and shrink tissue. High frequency (100 kilohertz to 5 megahertz), alternating electric current at various voltages (200–10,000 Volts) is passed through tissue to generate heat. An electrosurgical unit (ESU) consists of a generator and a handpiece with one or more electrodes. The device is controlled using a switch on the handpiece or a foot switch.

Electrosurgical generators can produce a variety of electrical waveforms. As these waveforms change, so do the corresponding tissue effects.

In bipolar electrosurgery (), both the active electrode and return electrode functions are performed at the site of surgery. The two tips of the forceps perform the active and return electrode functions. Only the tissue grasped in the forceps is included in the ele...