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Power control system and power control method of radio frequency treatment equipment

A power control and radio frequency technology, applied in the field of medical equipment, can solve the problem of poor matching between power and load impedance, and achieve the effect of real-time matching

Active Publication Date: 2017-04-26
TRANSEASY MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN2543497Y discloses a temperature-controlled radiofrequency ablation therapeutic apparatus, but the matching between power and load impedance is poor when it is output in a low power state

Method used

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  • Power control system and power control method of radio frequency treatment equipment
  • Power control system and power control method of radio frequency treatment equipment

Examples

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Embodiment 1

[0022] Such as Figure 1~2 As shown, it includes a microcontroller, a photoelectric isolation circuit, and a radio frequency sine wave generating circuit in this embodiment, and it is characterized in that: the microcontroller is connected with a D / A conversion circuit through a photoelectric isolation circuit, and the D / A The output end of the A conversion circuit is connected to the input end of the signal amplitude control circuit, the other input end of the signal amplitude control circuit is connected to the radio frequency sine wave generating circuit, and the output end of the signal amplitude control circuit is connected to the buffer amplifier circuit. The input terminal, the output terminal of the buffer amplifier circuit is connected to the power amplifier circuit, and the power output is coupled and output by the output transformer; in addition, it also includes a current transformer and a voltage transformer, and the output terminal of the current transformer is co...

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Abstract

The invention relates to a power control system for human body radio frequency treatment equipment, and belongs to the technical field of medical instruments. The power control system comprises a single-chip microcomputer circuit, a nonvolatile memory, a photoelectric isolation circuit, an A / D (Analogue / Digital) conversion circuit, a D / A (Digital / Analogue) conversion circuit, a radio frequency sine wave generation circuit, a signal amplitude control circuit, a buffer amplification circuit, a driver transformer, a power amplification circuit, an output transformer, a current transformer, a voltage transformer, a current signal buffer amplification circuit, a voltage signal buffer amplification circuit and an RMS-DC (Root Mean Square-Direct Current) conversion circuit. According to the power control system, the problems of great power control error and inter-impedance power error in the prior art can be solved, and the error within the impedance range of 50 to 350 Ohms is superior to + / -0.2W or + / -5 percent.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and more specifically, the invention relates to a power control system and a power control method of radio frequency treatment equipment. Background technique [0002] Radiofrequency ablation based on the biothermal effect of radiofrequency electromagnetic fields has been widely used in tumor treatment, cardiothoracic surgery, neurosurgery, gynecology and urology, etc., and has various corresponding medical equipment. In the process of radiofrequency ablation surgery, it is very important whether the output power of the radiofrequency ablation treatment system is appropriate. ablation effect. The impedance of the target tissue, that is, the load impedance of the radiofrequency ablation treatment system is a direct reflection of whether the output power of the radiofrequency ablation treatment system is appropriate or not. [0003] Radiofrequency ablation technology using radiofrequency ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12
Inventor 黄锦绣何建庆王光宇勾慧益
Owner TRANSEASY MEDICAL TECH
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