CN115778497A - Ultrasonic scalpel control system - Google Patents
Ultrasonic scalpel control system Download PDFInfo
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- CN115778497A CN115778497A CN202211473571.8A CN202211473571A CN115778497A CN 115778497 A CN115778497 A CN 115778497A CN 202211473571 A CN202211473571 A CN 202211473571A CN 115778497 A CN115778497 A CN 115778497A
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Abstract
The invention provides an ultrasonic scalpel control system which comprises a signal generator, a main control module, an ultrasonic scalpel and a cooling module, wherein the signal generator is connected with the main control module; the signal generator is used for generating command signals required by the ultrasonic scalpel; the main control module is used for tracking frequency and power according to the instruction signal; the ultrasonic scalpel is used for receiving the signal of the main control module and realizing the motion control of the scalpel head; the cooling module is used for cooling the ultrasonic scalpel. The invention can control the operation process more accurately, feed back the operation progress in time and adjust properly based on the progress so as to implement the operation more accurately, reduce the operation risk, improve the operation success efficiency, reduce the pain of patients and facilitate the shortening of the recovery period.
Description
Technical Field
The invention belongs to the field of medical equipment, and particularly relates to an ultrasonic scalpel control system.
Background
The ultrasonic technology is a discipline with extremely strong comprehensiveness, and relates to a plurality of fields such as electronics, acoustics, materials, machinery, medical treatment and the like. An ultrasonic scalpel is one of medical instruments commonly used in surgical operations, and the operating principle of the ultrasonic scalpel is that an ultrasonic transducer is driven to convert electric energy into mechanical energy, the scalpel is driven to vibrate at a resonance frequency point at a high frequency, water in tissues is vaporized, protein hydrogen bonds are broken and denatured, cells are disintegrated, the tissues are cut or coagulated, and blood coagulation and hemostasis are performed during tissue separation and tissue cutting. Because of the effects of less bleeding in the operation, quick recovery after the operation and no trace, the utility model obtains better reverberation and wider application in the medical field.
The current ultrasonic scalpel control system is not intelligent enough, and can not effectively improve the processing efficiency and integrate various functions.
Disclosure of Invention
In order to solve the technical problems, the invention provides an ultrasonic scalpel control system which can control the progress of an operation more accurately, feed back the progress of the operation in time and adjust the progress appropriately based on the progress so as to implement the operation more accurately, reduce the risk of the operation, improve the success efficiency of the operation, reduce the pain of a patient and facilitate the shortening of the recovery period.
To achieve the above object, the present invention provides an ultrasonic scalpel control system, comprising: the ultrasonic scalpel comprises a signal generator, a main control module, an ultrasonic scalpel and a cooling module;
the signal generator is used for generating command signals required by the ultrasonic scalpel;
the main control module is used for tracking frequency and power according to the command signal and generating an electric power signal;
the ultrasonic scalpel is used for generating a mechanical power signal according to the electric power signal to realize the motion control of the scalpel head;
the cooling module is used for cooling the ultrasonic scalpel.
Optionally, the main control module includes: the power output isolation device comprises a signal generation control unit, a power output isolation unit and a micro control unit;
the signal generation control unit is used for receiving the instruction of the micro control unit, generating a PWM signal and transmitting the PWM signal to the power output isolation unit after passing through a high-frequency transformer;
the power output isolation unit is used for enabling the energy converter to resonate within a working frequency range according to the PWM signal passing through the high-frequency transformer; collecting the amplitude and phase of current and voltage, processing and transmitting to the micro control unit;
the micro control unit is used for receiving the data collected by the power output isolation module, comparing the data with preset reference input data, realizing real-time accurate tracking control of output power and working frequency through a pid control algorithm and an adrc control algorithm respectively, carrying out corresponding adjustment on a control instruction, and finally realizing closed-loop automatic control of the system.
Optionally, the ultrasonic surgical blade comprises: the ultrasonic scalpel comprises a scalpel head, a scalpel handle main body and an ultrasonic transducer positioned in the scalpel handle main body;
the cutter head is used for cutting a substance;
the knife handle main body is used for connecting the knife head;
the ultrasonic transducer is used for converting the electric power signal into a mechanical power signal and controlling the cutting track of the cutter head.
Optionally, the cutter head comprises: tooth shape, U shape, spine shape, sheet shape, spherical shape, and cylindrical shape.
Optionally, the ultrasonic transducer controls the cutting trajectory of the cutting head through a horn.
Optionally, the horn comprises: the system comprises a microcontroller, an electromagnetic transmission device and a detector;
the microcontroller is used for controlling the working mode of the ultrasonic scalpel and sending out a control signal;
the electromagnetic transmission device is used for driving the scalpel to stretch according to the control signal;
the detector is used for detecting the spatial position of the ultrasonic scalpel.
Optionally, the cooling module comprises: the liquid inlet unit and the liquid discharge unit;
the liquid inlet unit is used for injecting liquid or air through an external injection pump to cool a heating part of the ultrasonic surgical knife;
the liquid discharge unit is used for discharging used liquid or gas.
Optionally, the control system further includes a medical switching power supply, and the medical switching power supply is configured to provide a direct current power supply to each module.
Compared with the prior art, the invention has the following advantages and technical effects:
the invention provides an ultrasonic scalpel control system, which realizes the tracking of frequency and power through a main control module, and an ultrasonic scalpel is used for receiving a signal of the main control module and realizing the motion control of a scalpel head; the cooling module is used for cooling the ultrasonic scalpel. The system can control the operation progress more accurately, can feed back the operation progress in time and adjust properly based on the progress so as to implement the operation more accurately, reduce the operation risk, improve the operation success efficiency, reduce the pain of patients and facilitate the shortening of the recovery period.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of an ultrasonic scalpel control system according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
As shown in fig. 1, the present invention provides an ultrasonic-surgical-blade control system, comprising: the ultrasonic scalpel comprises a signal generator, a main control module, an ultrasonic scalpel and a cooling module.
The signal generator is used for generating command signals required by the ultrasonic scalpel:
further, the instruction signal includes: the position, direction, depth and the like of the edge of the ultrasonic scalpel.
The main control module is used for tracking frequency and power according to the instruction signal, and generating an electric power signal:
further, the main control module comprises: the power output isolation device comprises a signal generation control unit, a power output isolation unit and a micro control unit;
the signal generation control unit is used for receiving the instruction of the micro control unit and generating two paths of complementary PWM signals with high precision frequency, reducing the duty ratio of the PWM signals according to the target frequency, then carrying out power amplification on the signals and driving the push-pull circuit to be alternately conducted, so that the direct current signals are in push-pull conduction and transmitted to the power output isolation unit after passing through the high-frequency transformer;
further, the signal generation control unit includes:
the signal generating circuit receives an instruction sent by the micro control unit through a dds chip with the adjusting precision of 0.1hz, generates a square wave with the duty ratio of 50% and high-precision target frequency, and obtains two paths of complementary PWM signals through the action of a gate circuit;
the numerical control half-bridge power adjusting circuit comprises a numerical control potentiometer and a digital clock, wherein the resistance value of the numerical control potentiometer connected to the digital clock circuit is controlled through a micro control unit, the frequency and the duty ratio of a generated reference clock signal are adjusted, the duty ratios of two original paths of complementary PWM signals are changed through a trigger circuit, and then the power is adjusted;
the driving power amplifier circuit is used for improving the amplitude of the PWM signal so as to drive the push-pull output circuit to work; and the push-pull mosfet tube is used for enabling the +48v direct-current power supply to be in push-pull conduction, further enabling the transformer to work and transmitting a signal to the power driving isolation module.
The power output isolation unit is used for enabling the energy converter to resonate within a working frequency range according to the PWM signal passing through the high-frequency transformer; collecting the amplitude and phase of current and voltage, processing and transmitting to the micro control unit;
further, the power output isolation unit includes:
the power inductor is used for carrying out impedance matching with the ultrasonic transducer so that the transducer can work in a resonant mode near a rated frequency;
the feedback circuit divides voltage through a series-parallel resistance network, uses a multi-stage operational amplifier structure to continuously sample the current and the voltage of the working circuit, wherein the first stage output is directly transmitted to the micro control unit and is used for detecting the amplitude of a signal, the second stage output is transmitted to the voltage comparison circuit, the comparison circuit compares the current and the voltage signals with zero potential, outputs two paths of complementary PWM signals and transmits the two paths of complementary PWM signals to the micro control unit to detect the phase difference between the current and the voltage in real time;
the ultrasonic scalpel interface circuit is used for providing a standard power interface for ultrasonic scalpel equipment, providing an accurate electric signal to drive the ultrasonic transducer to work, and further enabling the scalpel to enter a high-frequency vibration state;
and the key detection circuit is used for detecting the state of a trigger switch on the ultrasonic knife equipment, transmitting the corresponding level to the micro control unit and further controlling the working state of the ultrasonic scalpel equipment.
The micro control unit is used for receiving data collected by the power output isolation module, comparing the data with preset reference input data, realizing real-time accurate tracking control of output power and working frequency through a pid control algorithm and an adrc control algorithm respectively, carrying out corresponding adjustment on a control instruction, and finally realizing closed-loop automatic control of the system.
The ultrasonic surgical knife is used for generating a mechanical power signal according to the electric power signal to realize the motion control of the knife head:
further, the ultrasonic surgical blade includes: the ultrasonic scalpel comprises a scalpel head, a scalpel handle main body and an ultrasonic transducer positioned in the scalpel handle main body;
the cutter head is used for cutting a substance, and comprises: tooth shape, U shape, spine shape, sheet shape, spherical shape, and cylindrical shape;
the knife handle main body is used for connecting a knife head;
the ultrasonic transducer is used for converting a signal based on the main control module into mechanical power and controlling the cutting track of the cutter head through the amplitude transformer.
The horn comprises: the system comprises a microcontroller, an electromagnetic transmission device, a detector and a first wireless signal transceiver;
the first wireless signal transceiver is used for communicating and interacting with the outside;
the microcontroller is used for controlling the working mode of the ultrasonic scalpel and sending out a control signal;
the electromagnetic transmission device is used for driving the scalpel to stretch and retract according to the control signal; the electromagnetic transmission device is based on different working modes of the ultrasonic scalpel, the distance and the speed of the extension of the ultrasonic scalpel are controlled and driven by the microcontroller, and the ultrasonic scalpel can be automatically retracted into the handle to be locked in a safe mode.
The detector is used for detecting the spatial position of the ultrasonic scalpel and sending a detection signal through the first wireless signal transceiver. The first wireless signal transceiver automatically or controllably receives a control command signal sent by external main control equipment to the scalpel, and the microcontroller controls the electromagnetic transmission device according to the control command signal to realize the telescopic control of the scalpel.
The cooling module is used for cooling the ultrasonic surgical knife:
further, the cooling module includes: the liquid inlet unit and the liquid discharge unit;
the liquid inlet unit is used for injecting liquid or air through an external injection pump to cool a heating part of the ultrasonic scalpel;
the liquid discharge unit is used for discharging used liquid or gas.
One end of a liquid inlet unit of the cooling module is connected with an injection end, a valve of the injection end is connected with an ultrasonic scalpel, the ultrasonic scalpel is controlled to be turned off or turned on, the injection end is connected with an injection pump, the other end of the liquid inlet unit is consistently connected into the handle and penetrates through the handle, the part in the handle surrounds the actuator in the handle and returns to flow out in the original direction, the liquid is injected into a discharge unit, the discharge unit is connected with an absorption pump to absorb the heat in the handle in a circulating mode, a spare outlet is reserved behind a cutter head of the ultrasonic scalpel, the turn-off or turn-on of the ultrasonic scalpel can be controlled to flush and absorb an operation part, the circulating substance in the cooling module can be liquid or gas, and the discharge unit can also be directly used for absorbing residual blood and the like of the injury part through the connection of the spare outlet through the absorption pump, so that the rapid operation is facilitated.
The whole cooling module is connected with a high-temperature resistant rubber hose, and in order to prevent the rubber hose from winding the electronic element and causing device damage due to aging of the rubber hose, a metal sealing layer is used for surrounding the internal electronic device, and the metal sealing layer is connected with a heat dissipation device (isolated from a circuit) of a heating main device to take away heat. When the infusion pump is infusing a liquid, the infusion pump can be a peristaltic pump. It should be noted that when the user operates the button on the handle to open the standby outlet near the blade of the ultrasonic scalpel, i.e. the relevant switch on the handle changes the working mode (flushing), it feeds back a signal to the ultrasonic scalpel to inform the ultrasonic scalpel of the working mode, the host controls the injection pump and the suction pump not to work simultaneously, and only the injection pump can be started to inject, for example, inject liquid or inject air to flush; or the suction pump can only be started to suck (suck) the surface of the operation object, when a button on the operation handle of a user closes the standby outlet near the scalpel head, a signal is fed back to the ultrasonic scalpel to inform that the operation mode of the ultrasonic scalpel is that the injection pump and the suction pump can work simultaneously, and the injection pump and the suction pump work cooperatively to cool.
Further, the medical switching power supply provides +48v, +12v, -12v, +5v direct current power supply for each module.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (5)
1. An ultrasonic surgical blade control system, comprising:
the ultrasonic scalpel comprises a signal generator, a main control module, an ultrasonic scalpel and a cooling module;
the signal generator is used for generating command signals required by the ultrasonic scalpel;
the main control module is used for tracking frequency and power according to the command signal and generating an electric power signal;
the ultrasonic scalpel is used for generating a mechanical power signal according to the electric power signal to realize the motion control of the scalpel head;
the cooling module is used for cooling the ultrasonic scalpel;
the ultrasonic scalpel includes: the ultrasonic scalpel comprises a scalpel head, a scalpel handle main body and an ultrasonic transducer positioned in the scalpel handle main body;
the cutter head is used for cutting a substance;
the knife handle main body is used for connecting the knife head;
the ultrasonic transducer is used for converting the electric power signal into a mechanical power signal and controlling the cutting track of the cutter head;
the ultrasonic transducer controls the cutting track of the cutter head through an amplitude transformer;
the horn comprises: the system comprises a microcontroller, an electromagnetic transmission device and a detector;
the microcontroller is used for controlling the working mode of the ultrasonic scalpel and sending out a control signal;
the electromagnetic transmission device is used for driving the scalpel to stretch according to the control signal;
the detector is used for detecting the spatial position of the ultrasonic scalpel.
2. The ultrasonic surgical blade control system of claim 1, wherein the master control module comprises: the power output isolation device comprises a signal generation control unit, a power output isolation unit and a micro control unit;
the signal generation control unit is used for receiving the instruction of the micro control unit, generating a PWM signal and transmitting the PWM signal to the power output isolation unit after passing through a high-frequency transformer;
the power output isolation unit is used for enabling the energy converter to resonate within a working frequency range according to the PWM signal passing through the high-frequency transformer; collecting the amplitude and phase of current and voltage at the same time, processing and transmitting to the micro control unit;
the micro control unit is used for receiving the data acquired by the power output isolation module, comparing the data with preset reference input data, realizing real-time accurate tracking control of output power and working frequency through a pid control algorithm and an adrc control algorithm respectively, and correspondingly adjusting a control instruction to finally realize closed-loop automatic control of the system.
3. The ultrasonic surgical blade control system of claim 1, wherein the blade tip comprises: tooth shape, U shape, spine shape, sheet shape, spherical shape, and cylindrical shape.
4. The ultrasonic surgical blade control system of claim 1, wherein the cooling module comprises: the liquid inlet unit and the liquid discharge unit;
the liquid inlet unit is used for injecting liquid or air through an external injection pump to cool a heating part of the ultrasonic scalpel;
the liquid discharge unit is used for discharging used liquid or gas.
5. The ultrasonic surgical blade control system of claim 1, further comprising a medical switching power supply for providing dc power to the modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211473571.8A CN115778497A (en) | 2022-11-22 | 2022-11-22 | Ultrasonic scalpel control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211473571.8A CN115778497A (en) | 2022-11-22 | 2022-11-22 | Ultrasonic scalpel control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115778497A true CN115778497A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211473571.8A Pending CN115778497A (en) | 2022-11-22 | 2022-11-22 | Ultrasonic scalpel control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115778497A (en) |
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- 2022-11-22 CN CN202211473571.8A patent/CN115778497A/en active Pending
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