Ultrasonic scalpel excitation device and excitation method

Abstract

The invention provides an ultrasound knife exciting device and an exciting method, and aims to solve the technical problems that a traditional ultrasound knife exciting device adopts more separation elements, electric signals among the elements have poor transmission accuracy, and separation elements have large performance drift after long-time using and cannot generate stable and high-performance sinusoidal signals or generate sinusoidal signals with stable frequency and uniform amplitude to excite the ultrasound knife. The device comprises a main processor, a main power supply, a fixed reference power supply, a user keyboard, an LCD display module, an FPGA unit, a digital-to-analogue conversion unit, an analogue-to-digital conversion unit I, an analogue-to-digital conversion unit II, an adjustable switch power supply, an adjustable reference power supply, a clock unit, an amplification circuit, a signal regulation circuit, a voltage monitor module, a current monitor module and a signal output end. The ultrasound knife exciting device and the exciting method can be widely applied to surgical operation devices.

Description

technical field [0001] The invention relates to a medical device, in particular to an ultrasonic scalpel, in particular to an excitation device and an excitation method for an ultrasonic scalpel. Background technique [0002] We know that the ultrasonic knife is more and more widely used in surgical operations. According to the structure and working principle of the specific instrument, the ultrasonic knife can cut the tissue while coagulating blood. There is no current passing through the human body during its work, and the tissue eschar is small. , so that the damage to the patient is small. The ultrasonic knife can be used in open surgery, laparoscopic or endoscopic surgery, including robot-assisted surgery; the ultrasonic knife generally includes an ultrasonic knife host, a driving handle, a knife head and a control switch, and the knife head is composed of a handle, a knife rod and When the ultrasonic knife is working, the host of the ultrasonic knife controls the knif...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at that the existing ultrasonic knife excitation device adopts many separation components, takes up a large space on the circuit board, has poor electrical signal transmission accuracy between components, and has large performance drift of separation components after long-term use, and cannot produce stable, The high-performance sinusoidal signal cannot generate a sinusoidal signal of stable frequency and constant amplitude to excite the ultrasonic knife, which leads to the technical problem of poor stability of the ultrasonic knife during long-term use. At the same time, the traditional ultrasonic knife excitation device cannot track the ultrasonic knife in real time. The output of the excitation signal of the ultrasonic knife can be effectively adjusted according to the change of the rod load, so that the ultrasonic knife cannot be effectively controlled to work in the resonance state, resulting in the technical problems of cutting human tissue and poor hemostasis effect of the ultrasonic knife every time it is used. It is necessary to use separate components, take up less space on the circuit board, and the electrical signal transmission accuracy between components is high. The sinusoidal signal with constant amplitude to excite the ultrasonic knife can ensure the ultrasonic knife excitation device and excitation method with high stability during long-term use of the ultrasonic knife; at the same time, it also provides a method that can track the change of the load of the ultrasonic knife bar in real time and effectively adjust the ultrasonic knife. The output of the knife excitation signal can effectively control the ultrasonic knife to work in the resonance state, and can ensure that the ultrasonic knife cuts human tissue and has a good hemostasis effect every time the ultrasonic knife is used. The excitation device and the excitation method of the ultrasonic knife

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