Method and device for detecting power of high-frequency electrotome

Abstract

The invention discloses a method and device for detecting the power of a high-frequency electrotome. The method and device are applied to the high-frequency electrotome. The high-frequency electrotome comprises an electrotome pen and a negative plate. A loop is formed by the electrotome pen, the negative plate and actual impedance such as human body tissue. The method comprises the steps that according to a preset initial voltage signal, a controller triggers a high-voltage power supply to output a present voltage signal to a power amplifier and transmits a drive signal to the power amplifier; the controller triggers the power amplifier to conduct power amplification on the drive signal and output a power current to the electrotome pen according to the present voltage signal, a present current signal of the electrotome pen is obtained by a current transformer, a direct-current converter receives the present current signal, direct-current signal conversion is conducted on the present current signal, and a direct-current signal is obtained; the controller obtains the actual power value of the high-frequency electrotome according to the direct-current signal and a preset current impedance table of the high-frequency electrotome.

Description

technical field [0001] The present application relates to the technical field of power detection, in particular to a power detection method and device for a high-frequency electrosurgical knife. Background technique [0002] High-frequency electrotome (high-frequency surgical device) is an electrosurgical instrument that replaces a mechanical scalpel for tissue cutting. The argon high-frequency electric knife heats the body tissue when the high-frequency high-voltage current generated by the effective electrode tip contacts the body, and realizes the separation and coagulation of the body tissue, thereby achieving the purpose of cutting and hemostasis. [0003] In the application of high-frequency electrosurgical unit, its output power is required to be stable and reliable. In the prior art, when detecting its output power, the following scheme is usually adopted: the voltage effective value is obtained by voltage detection, the current effective value is obtained by curren...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in this application is to provide a power detection method and device for a high-frequency electrosurgical knife, which is used to solve the problem that in the existing high-frequency electric knife power detection scheme, the detection of voltage and current needs to be completed at the same time, resulting in power detection The implementation process and system are relatively complicated, which makes the error in the power detection process larger and reduces the reliability of power detection.

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