Output power monitoring circuit of high frequency electrotome
A high-frequency electric knife and output power technology, applied in the direction of heating surgical instruments, etc., can solve the problems of low accuracy rate, poor reliability, and single monitoring circuit of output power monitoring, and achieve the effect of enhancing reliability and improving accuracy
Active Publication Date: 2013-09-11
ANHUI YINGTE ELECTRONICS
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Problems solved by technology
[0002] At present, the monitoring circuit for the output power of high-frequency electrosurgical knife is relatively simple, often only simple voltage sampling or current sampling, and the operation of the monitoring circuit is relatively simple, which makes the accuracy of output power monitoring low and poor reliability
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[0007] A high-frequency electrosurgical output power monitoring circuit, including a current sampling circuit 1 and a voltage sampling circuit 2, the input terminals of both are connected to the power output port of the high-frequency electrosurgical unit, and the output terminals of both are connected to the operation circuit 3 The input end is connected, the output end of the arithmetic circuit 3 is connected with the input end of the analog-to-digital conversion circuit 4, the output end of the analog-to-digital conversion circuit 4 is connected to the microcontroller MCU, and the judgment operation and control are performed by the microcontroller MCU, such as figure 1 shown. The analog-to-digital conversion circuit 4 adopts a MAX1247 chip, and the 2nd, 3rd, and 4th pins of the MAX1247 chip are all connected to the output terminal of the arithmetic circuit 3 . The analog-to-digital conversion circuit 4 is completed by the MAX1247 chip to realize A / D conversion, wherein the ...
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The invention relates to an output power monitoring circuit of a high frequency electrotome, which comprises a current sampling circuit and a voltage sampling circuit, wherein the input ends of the current sampling circuit and the voltage sampling circuit connected with a power output port of the high frequency electrotome, the output ends of the current sampling circuit and the voltage sampling circuit are connected with the input end of a computing circuit, and the output end of the computing circuit is connected with the input end of an analog-digital conversion circuit. The output power monitoring circuit provided in the invention is used for simultaneously sampling the current and the voltage via the current sampling circuit and the voltage sampling circuit, performing signal voltage calculation, single current calculation and mixed calculation of voltage and current via the computing circuit, and monitoring the output power via multi-ply comparison. The output power monitoring circuit of high frequency electrotome of the invention can improve the output power monitoring accuracy and enhance the monitoring reliability.
Description
technical field [0001] The invention relates to a monitoring circuit, in particular to a monitoring circuit for output power of a high-frequency electric knife. Background technique [0002] At present, the monitoring circuit for the output power of the high-frequency electrosurgical unit is relatively simple, often only simple voltage sampling or current sampling, and the calculation of the monitoring circuit is relatively simple, which makes the accuracy of output power monitoring low and poor reliability. Contents of the invention [0003] The purpose of the present invention is to provide a high-frequency electrosurgical output power monitoring circuit capable of improving monitoring accuracy and enhancing monitoring reliability. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: a high-frequency electrosurgical output power monitoring circuit, including a current sampling circuit and a voltage sampling circui...
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IPC IPC(8): A61B18/12
Inventor 万波董建军
Owner ANHUI YINGTE ELECTRONICS