A New Type of Low Temperature Plasma Surgical Device

Abstract

The invention discloses a novel low-temperature plasma operation device which comprises a high-frequency generator main machine generating two frequencies, and an operation knife handle connected with the high-frequency generator main machine and provided with an operation electrode. A generator generates the 400 k high frequency and the 1.09-mega radio frequency. The electrode is covered by a 40-50 nanometer insulating coating, a slot of 5-30 microns is manufactured on the insulating coating of a knife bit electrode with a special technology, and a conductive electrode is exposed of a narrow area at the tip end of the slot. A corresponding cutting control switch on the knife handle is operated, the high-frequency generator main machine outputs 1.09-mega radio frequency processing waveforms with corresponding energy to the electrode, the tip end of the slot of 5-30 microns of the knife bit electrode conducts radio-frequency discharge to act on water molecules in tissue to generate plasma, plasma energy is highly concentrated within a narrow range of 5-30 microns, and therefore tissue cutting is achieved. The energy is concentrated in the very small range of 5-30 microns, and heat damage cannot be caused on peripheral tissue beyond 30 microns, and therefore low-temperature cutting is achieved.

Description

[0001] 1. Technical field [0002] The patent of the present invention belongs to the category of electrosurgical instruments. [0003] 2. Background technology [0004] High-frequency electrosurgical units and bipolar water-cooled low-temperature plasma electrosurgical units are now widely used clinically. The frequency of the high-frequency electric knife host is below 500k, and the tissue cutting is completed by the high-temperature heat generated when the current passes through the impedance of the electrode itself. [0005] The defect of high-frequency electric knife is that due to the high temperature of the surgical electrode, the mechanical strength of the electrode that is too thin or too thin is not enough to support the completion of the operation. Very high will cause great thermal damage to surrounding tissues, and is not suitable for fine surgery requirements. [0006] The existing bipolar water-cooled plasma electric knife adopts bipolar technology on the cutte...

AI Technical Summary

Problems solved by technology

[0005] The defect of high-frequency electric knife is that due to the high temperature of the surgical electrode, the mechanical strength of the electrode that is too thin or too thin is not enough to support the completion of the operation. Very high thermal damage to surrounding tissues is great, not suitable for fine surgery requirements

[0006] The existing bipolar water-cooled plasma electric knife adopts bipolar technology on the cutter head, so that the discharge is carried out between the two poles. very low coagulation

[0007] It is very necessary to provide a new type of low-temperature radio frequency plasma device to solve the above-mentioned excessive damage of high-frequency electric knife and the coagulation problem of bipolar water-cooled plasma electric knife

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