Argon output control method for high-frequency argon knife

Abstract

The present invention discloses an argon output control method for a high-frequency argon knife. The high-frequency argon knife comprises a pressure reducing and pressure stabilizing valve, a flow proportional valve, a switching electromagnetic valve and a single-chip microcomputer, the flow proportional valve and the switching electromagnetic valve are both controlled by the single-chip microcomputer, argon in an argon source is sequentially output through the pressure reducing and pressure stabilizing valve, the flow proportional valve and the switching electromagnetic valve; when the high-frequency argon knife is not started, the switching electromagnetic valve is in a closed state, an output of the argon is cut off, a flow rate output by the flow proportional valve is set, according tothe set flow rate, the single-chip microcomputer controls a stepper motor of the flow proportional valve to rotate to a suitable opening size, when the switching electromagnetic valve is closed, pressure intensity of an output end of the flow proportional valve is always the same as pressure intensity of an output end of the pressure reducing and pressure stabilizing valve; and after the high-frequency argon knife is started, the switching electromagnetic valve is opened, a large flow impact is formed at a moment of the opening, the impact enables an argon barrier layer to be rapidly formed around electrotome electrodes and tissues, and then an output of the steady flow is maintained.

Description

technical field [0001] The invention relates to the technical field of high-frequency argon gas knife, in particular to an argon output control method of a high-frequency argon gas knife. Background technique [0002] High-frequency argon knife is a new generation of high-frequency electric knife. Its working principle is to use the high-frequency and high-voltage current provided by high-frequency electric knife, and then use the characteristics of argon gas to achieve a perfect clinical effect. Argon is a stable, non-toxic and odorless inert gas, which is ionized into argon ions under high frequency and high pressure. This argon ion has excellent conductivity and can continuously transmit current. The argon itself is inert, which isolates the cut wound from the oxygen in the surrounding air, greatly reduces the oxidation reaction and charring of the tissue (smoke, eschar), reduces the temperature of the wound, and minimizes the damage to the tissue. [0003] In actual use...

AI Technical Summary

Problems solved by technology

Because there is no argon gas around the electrodes when the electrotome is first started, and the electrodes have released high-frequency and high-voltage currents. Although the argon gas is also output synchronously, the argon gas isolation layer cannot be formed quickly, but it takes a certain time, probably About 1 second, if the argon gas flow rate is small, it may take longer, so the effect of argon gas in the initial stage of startup is not obvious

In order to achieve the effect, the software can let the argon gas output for 1 to 2 seconds before starting the high-frequency electric knife, but in this way, the experience of operating the doctor is not good, and people will mistakenly think that the electric knife is faulty

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