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...

Examples

Embodiment 1

[0041] Such as figure 1 Shown is an embodiment of the present invention, a kind of ultrasonic scalpel excitation device, comprises main processor 2, main power supply 6, fixed reference power supply 18, user keyboard 1, LCD display module 3, FPGA unit 17, digital-to-analog conversion Unit 7, A / D conversion unit 13, A / D conversion unit 2 16, adjustable switching power supply 4, adjustable reference power supply 5, clock unit 17, amplifier circuit 9, signal conditioning circuit 8, voltage monitoring module 10, current monitoring module 15. Signal output terminal 11.

[0042] The main processor 2 is connected with the user keyboard 1, the main processor 2 is connected with the input end of the LCD display module 3, and the LCD display module 3 displays the running status information, gear setting information, and error alarm information of the host device, and the main processor 2 It is connected with the adjustable switching power supply 4, the main processor 3 is connected wit...

Embodiment 2

[0056] Such as figure 1 , figure 2 , image 3 Shown is a schematic diagram of another embodiment of the ultrasonic scalpel excitation device of the present invention, and this embodiment mainly further defines the structure and function of the FPGA unit in Embodiment 1, wherein image 3 It is a structural block diagram of the FPGA unit. As can be seen in the figure, the FPGA unit 12 is internally provided with a resonant frequency control module 19, a phase accumulator 20, an address converter 23, a sine data table 26, a DAC data module 27, and a frequency control word module 21 , constant amplitude control module 22, current acquisition module 24, voltage acquisition module 25;

[0057] The resonant frequency control module 19 is connected with the main processor module 2 and the frequency control word module 21 respectively, the frequency control word module 21 is connected with the input end of the phase accumulator 20, the output end of the phase accumulator 20 is conne...

Embodiment 3

[0076] Such as figure 1 , figure 2 , image 3 , Figure 4 Shown is another embodiment of the ultrasonic scalpel excitation device of the present invention, wherein Figure 4 The structural block diagram of the main processor, as can be seen in the figure, the main processor 2 is internally provided with a PWM generation module 28, a keyboard data receiving module 29, an LCD display control module 30, an FPGA data interaction module 31, and a reference power supply adjustment module 32; The PWM generating module 28 is connected with the adjustable switching power supply 4, the keyboard data receiving module 29 is connected with the user keyboard 1, the LCD display control module 30 is connected with the LCD display module 3, the FPGA data interaction module 31 is connected with the FPGA unit 12, and the reference power regulation module 32 is connected with the adjustable reference power supply 5 .

[0077] Among them, the adjustable switching power supply 4 refers to the ...

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...

Examples

Embodiment 1

[0041] Such as figure 1 Shown is an embodiment of the present invention, a kind of ultrasonic scalpel excitation device, comprises main processor 2, main power supply 6, fixed reference power supply 18, user keyboard 1, LCD display module 3, FPGA unit 17, digital-to-analog conversion Unit 7, A / D conversion unit 13, A / D conversion unit 2 16, adjustable switching power supply 4, adjustable reference power supply 5, clock unit 17, amplifier circuit 9, signal conditioning circuit 8, voltage monitoring module 10, current monitoring module 15. Signal output terminal 11.

[0042] The main processor 2 is connected with the user keyboard 1, the main processor 2 is connected with the input end of the LCD display module 3, and the LCD display module 3 displays the running status information, gear setting information, and error alarm information of the host device, and the main processor 2 It is connected with the adjustable switching power supply 4, the main processor 3 is connected wit...

Embodiment 2

[0056] Such as figure 1 , figure 2 , image 3 Shown is a schematic diagram of another embodiment of the ultrasonic scalpel excitation device of the present invention, and this embodiment mainly further defines the structure and function of the FPGA unit in Embodiment 1, wherein image 3 It is a structural block diagram of the FPGA unit. As can be seen in the figure, the FPGA unit 12 is internally provided with a resonant frequency control module 19, a phase accumulator 20, an address converter 23, a sine data table 26, a DAC data module 27, and a frequency control word module 21 , constant amplitude control module 22, current acquisition module 24, voltage acquisition module 25;

[0057] The resonant frequency control module 19 is connected with the main processor module 2 and the frequency control word module 21 respectively, the frequency control word module 21 is connected with the input end of the phase accumulator 20, the output end of the phase accumulator 20 is conne...

Embodiment 3

[0076] Such as figure 1 , figure 2 , image 3 , Figure 4 Shown is another embodiment of the ultrasonic scalpel excitation device of the present invention, wherein Figure 4 The structural block diagram of the main processor, as can be seen in the figure, the main processor 2 is internally provided with a PWM generation module 28, a keyboard data receiving module 29, an LCD display control module 30, an FPGA data interaction module 31, and a reference power supply adjustment module 32; The PWM generating module 28 is connected with the adjustable switching power supply 4, the keyboard data receiving module 29 is connected with the user keyboard 1, the LCD display control module 30 is connected with the LCD display module 3, the FPGA data interaction module 31 is connected with the FPGA unit 12, and the reference power regulation module 32 is connected with the adjustable reference power supply 5 .

[0077] Among them, the adjustable switching power supply 4 refers to the ...

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