Dual-core MCU intelligent ultrasonic minimally-invasive scalpel control system and control method

Abstract

The invention relates to a dual-core MCU intelligent ultrasonic minimally-invasive scalpel control system and control method. The dual-core MCU intelligent ultrasonic minimally-invasive scalpel control system comprises an ultrasonic scalpel measurer, a controller, a direct digital frequency synthesizer and a digital potentiometer; the controller is connected with the ultrasonic scalpel measurer, the direct digital frequency synthesizer and the digital potentiometer separately; the direct digital frequency synthesizer and the digital potentiometer are connected; and the digital potentiometer and an ultrasonic scalpel are connected. By arranging the controller, the direct digital frequency synthesizer and the digital potentiometer, the controller adjusts the frequency of output current by adjusting the frequency of the direct digital frequency synthesizer, and controls power of the output current by adjusting the resistance of the digital potentiometer, so that the scalpel output frequency and scalpel output power are precisely controlled, and the control precision of minimally-invasive surgery is improved.

Description

technical field [0001] The invention relates to the medical field, in particular to a dual-core MCU intelligent ultrasonic minimally invasive scalpel control system and control method. Background technique [0002] Scalpel, as an indispensable tool for surgery, plays an extremely important role in the whole operation process. With the continuous advancement of medical technology, surgical instruments are also constantly improved, such as steel knife, electric knife, ultrasonic knife, laser knife, radio frequency knife and so on. Among them, the ultrasonic knife converts electrical energy into mechanical energy, drives the knife head to perform high-frequency vibration at a certain resonance frequency, vaporizes the water in the tissue, breaks and denatures the hydrogen bond of the protein, disintegrates the cell, and cuts or solidifies the tissue. Coagulation and hemostasis during tissue separation and tissue cutting. With the rapid development of computer technology and m...

AI Technical Summary

Problems solved by technology

However, this solution is currently not practical in practice

Since the intelligent algorithm consumes a lot of resources of the processor, the cost of the product increases

It is difficult to achieve precise control of the operating frequency of the scalpel at low cost. If the operating frequency of the scalpel cannot be controlled accurately and in real time, it will not only reduce the output power and efficiency of the power supply, but also reduce the quality of the knife head over time. Affect the effect of surgery

It is precisely because the research and development results of domestic high-precision control power supply are not enough, the development of modern scalpels is slow, and most modern surgical instruments can only rely on imports, which will inevitably increase medical costs and make it difficult for the people in need to experience good medical effects. It has also greatly hindered the large-scale popularization and application of this type of modern scalpel

[0005] On the other hand, considering the piezoelectric characteristics of the ultrasonic scalpel, its own electrical characteristics will change with the cutting or emulsifying tissue. In order to ensure the quality of operation and the life of the equipment, it must be tracked and controlled to make it work strictly Resonant state, if the frequency of the ultrasonic power supply cannot be adjusted in time, the vibration system will work in a non-resonant state, and the output power and efficiency of the vibration system will be reduced

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