A plasma surgical electrode with liquid supply inside the tubular electrode

Abstract

The invention relates to a plasma surgical electrode, in particular to a plasma surgical electrode with fluid being supplied on the inner side of a tubular electrode. A jacket coats a tubular outer electrode in a sticking manner; an insulating inner electrode base is arranged on the end part of the tubular outer electrode; the inner electrode base is used for fixing an inner electrode and isolating the inner electrode from the outer electrode; a drainage port is formed in the middle of the inner electrode base, and is communicated with a dewatering channel; a fluid supply channel is formed between the outer wall surface of the dewatering channel and the inner wall surface of the tubular outer electrode; a water injection port is formed between the inner side of the tubular outer electrode and the inner electrode base, and is communicated with the fluid supply channel. The water injection port is a channel between the inner side of the tubular outer electrode and the inner electrode base, and working fluid is directly delivered to a discharge region and a surgical region, so that the radial size of the surgical electrode is reduced, and surgical wounds are reduced; through the fluid supply way, cooling of the electrode is facilitated, and the visual field of a surgeon is improved; meanwhile, a solution is induced to directly enter the surgical discharge region, so that sufficient discharge mediums are ensured, and the surgical quality is enhanced.

Description

technical field [0001] The invention relates to a plasma surgical electrode and belongs to the field of medical plasma surgical instruments. Background technique [0002] Low-temperature plasma ablation technology has been gradually applied to various fields of otolaryngology-head and neck surgery due to its advantages of safety, minimal invasiveness, simple operation, and less pain for patients. The electrolyte between the target tissue and the target tissue is converted into a low-temperature plasma state, and a highly concentrated plasma thin layer is formed at the front end of the surgical electrode. The strong electric field enables the free charged particles in the plasma thin layer to obtain sufficient energy and transfer the energy to The target tissue dissociates the molecular bonds that make up the cell components in the target tissue, disintegrates the cells in the target tissue in units of molecules, decomposes into carbohydrates and oxides, and causes the coagul...

AI Technical Summary

Problems solved by technology

Among them, whether the water injection structure is reasonable is the key issue that affects the solution delivery effect and flushing effect, but there are few researches and reports on the liquid supply method of the plasma surgical electrode.

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