A high-frequency tungsten electric needle is a medical device that is mainly used to cut, coagulate or cauterize tissue during surgery. It consists of a high-frequency generator and a tungsten electrode, which is connected to the generator through the surgeon’s handheld handle to control the transmission of current. The high-frequency tungsten electric needles have multiple functions and applications. The following is a detailed analysis:
The working principle of high-frequency tungsten electric needles is based on the skin effect and proximity effect generated by high-frequency current on the surface of the metal tungsten electrode. When high-frequency current passes through the tungsten electrode, the current is concentrated on the surface layer of the electrode, so that the electrode generates high temperature when it contacts the tissue, achieving the purpose of cutting and cauterizing the tissue. At the same time, the proximity effect of high-frequency current generates a strong electric field around the electrode, which promotes the decomposition of water molecules in the tissue, produces hydrogen and oxygen, and thus helps tissue coagulation and hemostasis.
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