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Power detection method and device of electrosurgical high-frequency operation system

A surgical system and power detection technology, which is applied in the medical field, can solve the problems of small thermal damage and low effectiveness of the phase angle between voltage and current, and achieve the effects of small thermal damage, ensuring safety and effectiveness, and precise power adjustment

Pending Publication Date: 2020-07-24
湖南菁益医疗科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a power detection method and device for an electrosurgical high-frequency operation system, which solves the problem of phase distortion in the detection of voltage and current in the prior art, so the effectiveness of phase angle detection of voltage and current is low The technical problem has achieved the technical effect of small voltage and current distortion, small power detection error, more accurate power adjustment, ensuring the safety and effectiveness of the high-frequency surgical system, and smaller thermal damage

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  • Power detection method and device of electrosurgical high-frequency operation system
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  • Power detection method and device of electrosurgical high-frequency operation system

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Embodiment 1

[0036] figure 1 It is a schematic flowchart of a power detection method of an electrosurgery high-frequency operation system in an embodiment of the present invention. Such as figure 1 As shown, the embodiment of the present invention provides a power detection method of an electrosurgical high-frequency operation system, the method comprising:

[0037] Step 110: Obtain the load voltage according to the directional series coupler in the power feedback detection module.

[0038] Step 120: Obtain the load current according to the directional series coupler.

[0039] Further, a correction compensation parameter is configured to the directional series coupler.

[0040] Specifically, the load voltage and load current related to the load power are acquired synchronously according to the directional series coupler in the power feedback detection module. Through the directional coupling sensor, the magnitude and phase distortion problems caused by the insufficient bandwidth of the...

Embodiment 2

[0054] The present invention also provides a power detection method device for an electrosurgical high-frequency operation system, such as figure 2 As shown, the device includes:

[0055] A power amplifier module 2-2, where the power amplifier module 2-2 sends high frequency / radio frequency signals. An impedance matching boost module 2-3, the impedance matching boost module 2-3 receives the high frequency / radio frequency signal sent by the power amplifier module 2-2, and boosts the high frequency / radio frequency signal to meet Set power.

[0056] Further, the device further includes: a high-frequency power supply module 2-1, the high-frequency power supply module 2-1 serves as a power supply for the power amplifier module 2-2 and the impedance matching boost module 2-3.

[0057] Specifically, the power detection method device of the electrosurgery high-frequency surgery system in the embodiment of the present application includes: a power amplifier module 2-2, an impedance ...

Embodiment 3

[0066] This embodiment provides a power detection method and device for an electrosurgical high-frequency operation system, such as image 3 As shown, the device includes:

[0067] The high-frequency signal transmitted by the high-frequency signal transmission link 1, after passing through the directional series coupler 4 and the step-up transformer 2, outputs the corresponding load voltage and load current of the electrosurgical high-frequency operation system at the dual ports of the directional series coupler 4 The vector sum and vector difference of . Through the multiplier 5, the subtractor 6 and the average calculation module 7, the DC level corresponding to the effective power of the load is obtained. The main control module 2-5 obtains the parameters of the user interaction module 2-7, and outputs the power reference level 10. The window comparison module (error control module) 11 performs power error comparison between the DC level corresponding to the effective pow...

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Abstract

The invention provides a power detection method and device for an electrosurgical high-frequency operation system, and relates to the technical field of medical science. The method comprises the following steps: obtaining a load voltage according to a directional series coupler in a power feedback detection module; obtaining the load current according to the directional series coupler; obtaining avector sum and a vector difference of the load voltage and the load current; according to the vector sum and the vector difference, obtaining the effective power of the load through calculation of asquare difference module; acquiring set power according to a main control module; judging whether a power difference value between the set power and the effective power is within a first preset errorrange or not; when the power difference value exceeds the first preset error range, determining a power compensation correction value according to a power compensation correction table; and adjustingthe effective power according to the set power and the power compensation correction value. The method and device achieve the technical effects of small voltage and current distortion degree, small power detection error, more accurate power adjustment and smaller thermal damage.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a power detection method and device for an electrosurgical high-frequency operation system. Background technique [0002] The high-frequency surgical system uses high-frequency and high-voltage signals to act on human tissues to generate thermal effects or plasma to perform operations on human tissues, such as cutting, coagulation, ablation and treatment. When the output power of high frequency and high voltage is too low, the smoothness of the operation cannot be guaranteed; when the output power is too high, the safety of the surgical system will be affected. Therefore, the output power is the most important parameter of the high-frequency surgical system, and power control has also become the key core technology of the equipment. [0003] The power control of the high-frequency surgical system is the most important problem of power detection. Now the traditional power detec...

Claims

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Application Information

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IPC IPC(8): G01R21/00G01R21/06G01R25/00
CPCG01R21/002G01R21/06G01R25/00
Inventor 王全胜熊健李晓蒙王彦东
Owner 湖南菁益医疗科技有限公司
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