CN110638518B - High-frequency control method and device based on electrosurgery and electrosurgery equipment - Google Patents
High-frequency control method and device based on electrosurgery and electrosurgery equipment Download PDFInfo
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Abstract
The invention discloses a high-frequency control method based on electrosurgery, which comprises the following steps: creating an effect model, the effect model corresponding to a surgical mode and a parameter; receiving input information, wherein the input information comprises a surgical mode and parameters corresponding to the surgical mode; and adjusting the output result of the high-frequency generation circuit according to the input information. The invention also discloses a high-frequency control device based on the electrosurgery and electrosurgery equipment. The invention automatically adjusts the output result of the high-frequency generating circuit through the effect model.
Description
Technical Field
The invention relates to the technical field of electrosurgery, in particular to a high-frequency control method and device based on electrosurgery and electrosurgery equipment.
Background
Electrosurgery is a surgical treatment performed by the coagulation and cauterization effects of high frequency electrical current, generally acting on the skin to conduct heat to the tissue or to generate a thermal response in the tissue by the current, and commonly used electrosurgery includes electrocoagulation and electrosection. As an important component of the electrosurgical operation, the high frequency ac signal outputted from the high frequency generating circuit directly affects the therapeutic effect, and at the same time, since it acts on the human body, it is necessary to precisely control the high frequency ac signal in order to prevent injury to organs or life. The existing high-frequency control method based on the electrosurgery is generally completed manually, namely, the output parameters of the high-frequency generation circuit are displayed through display equipment, and then the parameters are manually adjusted to reach the required values, and then the operation is started.
Disclosure of Invention
In order to overcome the disadvantages of the prior art, it is an object of the present invention to provide an electrosurgical-based high-frequency control method that automatically adjusts the output result of a high-frequency generation circuit through an effect model.
One of the purposes of the invention is realized by adopting the following technical scheme:
an electrosurgical-based high frequency control method, comprising the steps of:
creating an effect model, the effect model corresponding to a surgical mode and a parameter;
receiving input information, wherein the input information comprises a surgical mode and parameters corresponding to the surgical mode;
adjusting the output result of the high-frequency generation circuit according to the input information;
the high-frequency generating circuit comprises a rectifying circuit, a switching power supply circuit, an inverter circuit, a filtering output circuit, a preceding stage sampling circuit, a subsequent stage sampling circuit, a processor and an MOS (metal oxide semiconductor) driving circuit, wherein the input end of the rectifying circuit is connected to an alternating current power supply, the output end of the rectifying circuit is connected to the input end of the filtering output circuit through the switching power supply circuit and the inverter circuit in sequence, and a high-frequency alternating current signal is output by the filtering output circuit; the input end of the preceding stage sampling circuit is connected to the output end of the switching power supply circuit and is used for sampling a direct-current high-voltage signal output by the switching power supply circuit to form a preceding stage sampling signal; the output end of the MOS drive circuit is connected to the enabling end of the inverter circuit; the input end of the rear-stage sampling circuit is connected to the output end of the filtering output circuit and is used for sampling the high-frequency alternating current signal to form a rear-stage sampling signal; the processor is used for receiving the preceding-stage sampling signal and the subsequent-stage sampling signal and controlling the inverter circuit through the MOS drive circuit according to the preceding-stage sampling signal and the subsequent-stage sampling signal; the high-frequency generation circuit further comprises a switching power supply converter, and the output end of the switching power supply converter is connected to the enabling end of the switching power supply circuit;
the adjusting the output result of the high-frequency generating circuit according to the input information comprises the following steps:
receiving a preceding stage sampling signal and a subsequent stage sampling signal;
when the preceding-stage sampling signal does not meet the first threshold range or/and the subsequent-stage sampling signal does not meet the second threshold range, the MOS drive circuit controls the high-frequency generation circuit to stop working through the inverter circuit;
according to the input information and the effect model, the direct-current high-voltage signal output by the switching power supply circuit is regulated through the switching power supply converter;
according to the input information and the effect model, the method for adjusting the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter comprises the following steps:
acquiring a target effect model according to the input information, wherein the target effect model is a specific target output result corresponding to the input information; the target output result comprises a target output power, a target peak-to-peak voltage and a target current value of the high-frequency alternating current signal;
acquiring an output signal of a processor to a switching power supply converter, and calculating an actual output result according to the output signal; the actual output result comprises the output power, the peak-to-peak voltage and the current value of the high-frequency alternating current signal;
and based on the target output result and the actual output result, controlling through a PID algorithm to adjust the output signal of the processor to the switching power supply converter, finally forming a PWM signal through the switching power supply converter according to the adjusted output signal, and adjusting the direct-current high-voltage signal output by the switching power supply circuit to enable the high-frequency alternating-current signal finally output by the filtering output circuit to meet the target output result.
Further, the effect model is a database formed based on the operation mode and the parameters corresponding to the operation mode, and the database is a two-dimensional data table.
Further, the effect model is a curve formed based on operation modes, each operation mode corresponds to one or more curves, the abscissa of the curve is different parameter values corresponding to the operation mode, and the ordinate of the curve is an output result corresponding to the different parameter values of the operation mode.
Further, the parameter comprises power, the surgical modes are an electrotomy mode and an electrocoagulation mode, wherein the electrotomy mode comprises a first electrotomy, a second electrotomy and a third electrotomy, and the electrocoagulation mode comprises a first electrocoagulation and a second electrocoagulation; the parameters corresponding to the second and third electrical switches further include a pulse interval time of the output result.
The processor further comprises a first CPU and a second CPU, the first CPU receives a front-stage sampling signal, the second CPU receives a rear-stage sampling signal, the first CPU and the second CPU are in isolated communication, and the first CPU and the second CPU are connected to a PWM signal input end of the MOS driving circuit through a logic AND gate or a logic NOR gate;
when the first CPU judges that the preceding stage sampling signal does not meet the first threshold range, the first CPU controls the high-frequency generation circuit to stop working through the MOS drive circuit, and meanwhile, the first CPU also sends alarm information to the alarm through the second CPU;
the second CPU sends the rear-stage sampling signal to the first CPU, when the first CPU judges that the rear-stage sampling signal does not meet the second threshold range after calculating the rear-stage sampling signal, the first CPU controls the high-frequency generating circuit to stop working through the MOS driving circuit, and meanwhile, the first CPU also sends alarm information to the alarm through the second CPU;
and when the rear-stage sampling signal meets a second threshold range, the first CPU regulates the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter according to the input information and the effect model.
Another object of the present invention is to provide an electrosurgical high-frequency control device that automatically adjusts the output result of a high-frequency generation circuit using an effect model.
The second purpose of the invention is realized by adopting the following technical scheme:
an electrosurgical-based high frequency control device, comprising:
a creation module for creating an effect model, the effect model corresponding to a surgical mode and a parameter;
the receiving module is used for receiving input information, and the input information comprises an operation mode and parameters corresponding to the operation mode;
the adjusting module is used for adjusting the output result of the high-frequency generating circuit according to the input information;
the high-frequency generating circuit comprises a rectifying circuit, a switching power supply circuit, an inverter circuit, a filtering output circuit, a preceding stage sampling circuit, a subsequent stage sampling circuit, a processor and an MOS (metal oxide semiconductor) driving circuit, wherein the input end of the rectifying circuit is connected to an alternating current power supply, the output end of the rectifying circuit is connected to the input end of the filtering output circuit through the switching power supply circuit and the inverter circuit in sequence, and a high-frequency alternating current signal is output by the filtering output circuit; the input end of the preceding stage sampling circuit is connected to the output end of the switching power supply circuit and is used for sampling a direct-current high-voltage signal output by the switching power supply circuit to form a preceding stage sampling signal; the output end of the MOS drive circuit is connected to the enabling end of the inverter circuit; the input end of the rear-stage sampling circuit is connected to the output end of the filtering output circuit and is used for sampling the high-frequency alternating current signal to form a rear-stage sampling signal; the processor is used for receiving the preceding-stage sampling signal and the subsequent-stage sampling signal and controlling the inverter circuit through the MOS drive circuit according to the preceding-stage sampling signal and the subsequent-stage sampling signal; the high-frequency generation circuit further comprises a switching power supply converter, and the output end of the switching power supply converter is connected to the enabling end of the switching power supply circuit;
the adjustment module includes:
a receiving unit for receiving a preceding stage sampling signal and a succeeding stage sampling signal;
the judgment unit is used for controlling the high-frequency generation circuit to stop working through the inverter circuit by the MOS drive circuit when the preceding-stage sampling signal does not meet the first threshold range or/and the subsequent-stage sampling signal does not meet the second threshold range;
the control unit is used for adjusting the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter according to input information and an effect model;
according to the input information and the effect model, the method for adjusting the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter comprises the following steps:
acquiring a target effect model according to the input information, wherein the target effect model is a specific target output result corresponding to the input information; the target output result comprises a target output power, a target peak-to-peak voltage and a target current value of the high-frequency alternating current signal;
acquiring an output signal of a processor to a switching power supply converter, and calculating an actual output result according to the output signal; the actual output result comprises the output power, the peak-to-peak voltage and the current value of the high-frequency alternating current signal;
and based on the target output result and the actual output result, controlling through a PID algorithm to adjust the output signal of the processor to the switching power supply converter, finally forming a PWM signal through the switching power supply converter according to the adjusted output signal, and adjusting the direct-current high-voltage signal output by the switching power supply circuit to enable the high-frequency alternating-current signal finally output by the filtering output circuit to meet the target output result.
The third purpose of the invention is realized by adopting the following technical scheme:
an electrosurgical apparatus includes a high-frequency generation circuit, a processing apparatus, a storage medium, and a computer program stored in the storage medium, which when executed by the processing apparatus, implements an electrosurgical-based high-frequency control method that is one of the objects of the present invention.
Compared with the prior art, the invention has the beneficial effects that: the invention automatically adjusts the output result of the high-frequency generating circuit through the effect model, saves time and labor, reduces the non-operation time waste in the operation process and improves the operation efficiency.
Drawings
FIG. 1 is a flowchart of a method for controlling high frequency in an electrosurgical procedure according to a first embodiment of the present invention;
fig. 2 is a schematic block diagram of a high-frequency generation circuit according to a first embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an oscillating circuit and a switching power supply circuit according to a first embodiment of the invention;
FIG. 4 is a block diagram showing the configuration of an electrosurgical high-frequency control device according to a second embodiment of the present invention;
fig. 5 is a functional block diagram of an electrosurgical device according to a third embodiment of the present invention.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Example one
Referring to fig. 1, a method for controlling high frequency based on electrosurgery comprises the following steps:
s110, creating an effect model, wherein the effect model corresponds to the operation mode and the parameters.
In a preferred embodiment of the invention, the surgical modes are classified into two broad categories, electro-cutting mode and electrocoagulation mode, wherein the electro-cutting mode comprises a first electro-cutting, a second electro-cutting and a third electro-cutting, and the electrocoagulation mode comprises a first electrocoagulation and a second electrocoagulation; the parameters corresponding to the first electrocoagulation, the first electrocoagulation and the second electrocoagulation are power; the parameters corresponding to the second and third switches include the power of the output result and the pulse interval time.
The creation mode of the effect model comprises two modes, one mode is to obtain a database formed by parameters corresponding to the operation mode and the operation mode through a mode of averaging in multiple tests, the database is a two-dimensional data table, namely, each operation mode and corresponding parameters correspond to data, and the data is a finally required target output result. The data may be a single value or an array of a plurality of data, and in a preferred embodiment of the present invention, the target output result has three data, i.e. the target output result includes a target output power, a target peak-to-peak voltage and a target current value of the high frequency ac signal.
Another way of creation is to fit a curve. And fitting a curve according to the operation modes, wherein each operation mode corresponds to one or more curves, the abscissa of the curve is different parameter values corresponding to the operation modes, and the ordinate of the curve is an output result corresponding to the different parameter values of the operation modes. In the preferred embodiment of the present invention, there are three output results, and each operation mode has three curves.
Among the two modes, the first mode can be used for constructing a database corresponding to commonly used parameters, the method is simple and convenient, the second mode can be used for fitting output results corresponding to all the parameters in each mode, and the applicability is wider.
S120, receiving input information, wherein the input information comprises an operation mode and parameters corresponding to the operation mode.
And S130, adjusting the output result of the high-frequency generation circuit according to the input information.
Referring to fig. 2, the high frequency generating circuit mainly includes a rectifying circuit 20, a switching power supply circuit 30, an inverter circuit 40, a pre-sampling circuit 31, a post-sampling circuit 51, a processor, a MOS driving circuit 80, and a switching power supply converter 61. Wherein:
the input end of the rectification circuit is connected to an alternating current power supply, the alternating current power supply is generally mains supply 10, and the alternating current power supply is based on different mains supply standards of different countries or regions. The rectifier circuit 20 is a full-wave rectifier bridge, but may be half-wave rectified.
The inverter circuit mainly comprises four field effect transistors such as insulated gate bipolar transistors, and the connection mode of the inverter circuit is a conventional arrangement mode of the existing inverter circuit, and the connection mode is not described again. The output end of the inverter circuit is also connected with a filter output circuit 50, and the required high-frequency alternating current signal is output through the filter output circuit and can be used for electrosurgery. The output end of the rectification circuit is connected to the input end of the filtering output circuit through the switching power supply circuit and the inverter circuit in sequence, and the filtering output circuit outputs high-frequency alternating current signals.
The input end of the preceding stage sampling circuit is connected to the output end of the switching power supply circuit and is used for sampling a direct-current high-voltage signal output by the switching power supply circuit to form a preceding stage sampling signal; the output end of the MOS drive circuit is connected to the enabling end of the inverter circuit; the input end of the rear-stage sampling circuit is connected to the output end of the filtering output circuit and is used for sampling the high-frequency alternating current signal to form a rear-stage sampling signal; the processor is used for receiving the preceding stage sampling signal and the rear stage sampling signal and controlling the inverter circuit through the MOS drive circuit according to the preceding stage sampling signal and the rear stage sampling signal.
The preceding stage sampling circuit comprises a preceding stage current sampling circuit and a preceding stage voltage sampling circuit, wherein the preceding stage voltage sampling circuit can directly sample by using a resistor voltage division mode and directly send a preceding stage voltage sampling signal to the processor, the preceding stage current sampling circuit can be connected between the output end of the switching power supply and the inverter circuit in series by using a sampling resistor, and the voltage on the resistor is detected and amplified by an operational amplifier to form a preceding stage current sampling signal through V/I conversion and then the preceding stage current sampling signal is sent to the processor.
The rear-stage sampling circuit comprises a rear-stage current sampling circuit and a rear-stage voltage sampling circuit, wherein the rear-stage voltage sampling circuit adopts resistance voltage division, then the voltage is sent to an RMS-to-DC chip AD8436 through an isolation transformer to be converted into a rear-stage voltage sampling signal and sent to a processor, the current sampling circuit can be connected with a primary winding of a current transformer with the ratio of 50:1 in series at the output end of the filtering output circuit, then the resistance is connected with the secondary winding in parallel, and then the resistance voltage is converted into direct current through the AD8436 to be sent to the processor.
It should be noted that the preceding stage sampling circuit and the subsequent stage sampling circuit may also adopt other sampling manners, and are not limited herein.
The MOS driving circuit comprises a PWM generating circuit and a driving circuit, wherein the PWM generating circuit comprises an active crystal oscillator and a frequency divider, and the output end of the active crystal oscillator is connected to the PWM signal input end of the driving circuit through the frequency divider and a logic AND gate or a logic NOR gate. The active crystal oscillator generates a 3.68M oscillating voltage which is then divided by a frequency divider, e.g. 74HC393, to produce a 460KHZ square wave which is fed to a driver circuit to drive the inversion of an inverter circuit. The driving circuit may adopt SI 8231.
Adjusting the output result of the high frequency generation circuit according to the input information, comprising:
receiving a preceding stage sampling signal and a subsequent stage sampling signal;
when the preceding-stage sampling signal does not meet the first threshold range or/and the subsequent-stage sampling signal does not meet the second threshold range, the MOS drive circuit controls the high-frequency generation circuit to stop working through the inverter circuit;
and regulating the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter according to the input information and the effect model.
The first threshold range and the second threshold range are set as required, and preferably are upper threshold values, namely the upper threshold values cannot be exceeded, so as to avoid damage to human bodies in use. The first threshold range and the second threshold range each include an upper current threshold and an upper voltage threshold. Meanwhile, in order to ensure the output regulation of the switching power supply circuit, the DAC signal output by the processor to the switching power supply converter cannot exceed a preset threshold, and if the DAC signal exceeds the preset threshold, the output regulation of the switching power supply circuit cannot be realized.
The former stage sampling signal and the DAC signal may be directly compared with the first threshold range and the preset threshold, and for the latter stage sampling signal, the latter stage sampling signal may be directly compared with the second threshold range, or may be compared by a certain calculation, for example, the latter stage sampling signal is calculated to obtain, for example, a power value, a peak-to-peak value, and a current value, and these calculation results are compared with the second threshold range.
The direct current high voltage signal is adjusted by adopting a PID mode, the processor performs certain calculation according to the post-stage sampling signal, for example, the power value, the peak-peak value and the current value which are actually output by the high-frequency generating circuit are obtained, and then the result is compared with an effect model selected by an operator, so that the processor generates a certain DAC signal, and then the DAC signal is converted into a PWM signal by the oscillating circuit, and the on-off of the MOS tube is controlled, so that the direct current high voltage signal output by the switching power supply circuit is adjusted.
Based on the principle, according to the input information and the effect model, the direct-current high-voltage signal output by the switching power supply circuit is regulated by the switching power supply converter, and the method further comprises the following steps:
acquiring a target effect model according to the input information, wherein the target effect model is a specific target output result corresponding to the input information; the target output result comprises a target output power, a target peak-to-peak voltage and a target current value of the high-frequency alternating current signal;
acquiring an output signal of a processor to a switching power supply converter, and calculating an actual output result according to the output signal; the actual output result comprises the output power, the peak-to-peak voltage and the current value of the high-frequency alternating current signal;
and based on the target output result and the actual output result, controlling through a PID algorithm (performing PID control on output power, peak-to-peak voltage and current value respectively) to adjust an output signal of the processor to the switching power supply converter, finally forming a PWM signal through the switching power supply converter according to the adjusted output signal (DAC signal), and adjusting a direct-current high-voltage signal output by the switching power supply circuit to enable a high-frequency alternating-current signal finally output by the filtering output circuit to meet the target output result.
As a preferred embodiment of the present invention, there are two processors, which are a first CPU 60 and a second CPU 70, respectively, where the first CPU receives a preceding-stage sampling signal, the second CPU receives a subsequent-stage sampling signal, the first CPU and the second CPU perform isolated communication therebetween, and the first CPU and the second CPU are connected to a PWM signal input terminal of the MOS driving circuit through a logic and gate or a logic nor gate.
The logic AND gate or the logic NOR gate is provided with a first input end and a second input end, a first and a second input ends matched with the first input end, and a second input end and a second output end matched with the second input end;
the number of the drive circuits is two, and each drive circuit is provided with two PWM signal output ends and one PWM signal input end; the output end of the active crystal oscillator is connected to a first input end, the first CPU and the second CPU are respectively provided with a first output control end, and the two first output control ends are respectively connected to a second first input end and a second input end; the first output end and the second output end are respectively connected to the PWM signal input ends of the two driving circuits; the four PWM signal output ends are respectively connected to the grids of the four field effect tubes; when an AND gate is adopted, the first two input ends continuously input high level, and when a NOR gate is adopted, the first two input ends continuously input low level.
Under the condition, when the first CPU judges that the preceding stage sampling signal does not meet the first threshold range, the first CPU controls the high-frequency generating circuit to stop working through the MOS driving circuit, and meanwhile, the first CPU also sends alarm information to the alarm through the second CPU; the second CPU sends the rear-stage sampling signal to the first CPU, when the first CPU judges that the rear-stage sampling signal does not meet the second threshold range after calculating the rear-stage sampling signal, the first CPU controls the high-frequency generating circuit to stop working through the MOS driving circuit, and meanwhile, the first CPU also sends alarm information to the alarm through the second CPU; and when the rear-stage sampling signal meets a second threshold range, the first CPU regulates the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter according to the input information and the effect model.
The square wave output by the frequency divider controls the on-off of two field effect transistors, and the first CPU and the second CPU control the on-off of the other two field effect transistors. The mode of the logic gate is adopted, firstly, the structure is simple, and secondly, whether the inverter circuit works or not is controlled by a plurality of signals together, so that when a certain device goes wrong, the human body can be prevented from being damaged. Inverter circuit stop work, whole high frequency generating circuit can not output high frequency alternating current signal promptly, and simultaneously, the treater still can report to the police through the alarm when inverter circuit stop work, and then arouses operator's attention.
The switching power supply converter is mainly used for adjusting a high-voltage direct-current signal output by the switching power supply circuit and further adjusting a high-frequency alternating-current signal output by the filtering output circuit, the first CPU is provided with a second output control end, the input end of the switching power supply converter is connected to the second output control end and used for receiving a control signal generated by the first CPU according to a preceding stage sampling circuit or/and a rear stage sampling circuit, and the output end of the switching power supply converter is connected to the enabling end of the switching power supply circuit and used for adjusting the direct-current high-voltage signal output by the switching power supply circuit according to a PWM (pulse width modulation) adjusting signal generated by the control signal.
Referring to fig. 3, the switching power converter includes an oscillation circuit U20, a first optocoupler U25, a second optocoupler U26, a first MOS transistor Q13A and a second MOS transistor Q13B, the switching power converter includes an inductor T6, a transformer T1, and a rectifier (D40, D41), wherein an input end of the oscillation circuit receives the control signal, two output ends of the oscillation circuit are respectively connected to input ends of the first optocoupler and the second optocoupler, and output ends of the first optocoupler and the second optocoupler are respectively connected to gates of the first MOS transistor and the second MOS transistor; the drain electrode of the first MOS tube is connected to the output end of the rectification circuit, the source electrode of the second MOS tube is grounded, the source electrode of the first MOS tube is connected to the drain electrode of the second MOS tube, the source electrode of the first MOS tube and the drain electrode of the second MOS tube are further connected to the synonym end of the primary winding of the transformer through the inductor, the synonym end of the primary winding of the transformer is connected to the output end of the rectification circuit, and the secondary winding of the transformer outputs a direct-current high-voltage signal through the rectifier.
The oscillation circuit U20 may adopt a chip UC A or a chip SG A, in fig. 2, in the case of UC A, a second pin thereof is connected to a second output control terminal (outputting a DAC signal) of the first CPU, the first optocoupler U25 and the second optocoupler U26 both adopt chips HCPL-3180 and 300E to perform a signal isolation function, and the first MOS transistor Q13A and the second MOS transistor Q13B both adopt DNMOS transistors. The rectifier adopts a full-wave rectifier bridge, a filter capacitor and the like can be connected behind the rectifier, a high-voltage direct current signal is output through the filter capacitor, the first CPU converts the generated feedback voltage signal into an analog signal (DAC signal) and then forms a corresponding PWM signal through an oscillation circuit U20, and therefore the on-off of the first MOS tube Q13A and the second MOS tube Q13B are controlled, and therefore the high-voltage direct current signal is adjusted.
Example two
Referring to fig. 4, a high-frequency control device based on electrosurgery is a virtual device according to the first embodiment, and includes:
a creation module 210 for creating an effect model, the effect model corresponding to a surgical mode and a parameter;
a receiving module 220, configured to receive input information, where the input information includes a surgical mode and a parameter corresponding to the surgical mode;
and an adjusting module 230, configured to adjust an output result of the high-frequency generating circuit according to the input information.
Preferably, the adjustment module comprises:
a receiving unit for receiving a preceding stage sampling signal and a succeeding stage sampling signal;
the judgment unit is used for controlling the high-frequency generation circuit to stop working through the inverter circuit by the MOS drive circuit when the preceding-stage sampling signal does not meet the first threshold range or/and the subsequent-stage sampling signal does not meet the second threshold range;
and the control unit is used for adjusting the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter according to the input information and the effect model.
EXAMPLE III
Fig. 5 is a schematic structural diagram of an electrosurgical apparatus according to a third embodiment of the present invention, and as shown in fig. 5, the electronic apparatus includes a processing apparatus 310, a memory 320, an input device 330, an output device 340, and a high-frequency generating circuit 350; the number of the processing devices 310 in the computer device may be one or more, and fig. 5 illustrates one processing device 310, in a preferred embodiment of the present invention, the processing device 310 and the high-frequency generating circuit 350 are used together, and may be a part of the high-frequency generating circuit 350 (i.e. the processing device 310 is a processor in the high-frequency generating circuit 350), or may be independent of the high-frequency generating circuit 350, and the high-frequency generating circuit 350 may be a high-frequency generating circuit according to an embodiment. The processing device 310, the memory 320, the input device 330 and the output device 340 in the electronic apparatus may be connected by a bus or other means, and the bus connection is exemplified in fig. 5.
The memory 320 serves as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the electrosurgical-based high-frequency control method according to the embodiments of the present invention (e.g., the creation module 210, the reception module 220, and the adjustment module 230 in the electrosurgical-based high-frequency control apparatus). The processing device 310 executes various functional applications of the electronic device and data processing, that is, implements the electrosurgical-based high-frequency control method of the above-described embodiment, by executing software programs, instructions, and modules stored in the memory 320.
The memory 320 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 320 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 320 may further include memory located remotely from the processing device 310, which may be connected to the electronic device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 330 can be used to input the effect model, various preset thresholds, the operation mode and the corresponding parameters thereof. The output device 340 may include a display device such as a display screen, and the electrosurgical device may additionally include necessary components such as a housing, pedals, a display screen, electrodes, a cutter, and the like.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (5)
1. An electrosurgical-based high frequency control device, comprising:
a creation module for creating an effect model, the effect model corresponding to a surgical mode and a parameter;
the receiving module is used for receiving input information, and the input information comprises an operation mode and parameters corresponding to the operation mode;
the adjusting module is used for adjusting the output result of the high-frequency generating circuit according to the input information;
the high-frequency generating circuit comprises a rectifying circuit, a switching power supply circuit, an inverter circuit, a filtering output circuit, a preceding stage sampling circuit, a subsequent stage sampling circuit, a processor and an MOS (metal oxide semiconductor) driving circuit, wherein the input end of the rectifying circuit is connected to an alternating current power supply, the output end of the rectifying circuit is connected to the input end of the filtering output circuit through the switching power supply circuit and the inverter circuit in sequence, and a high-frequency alternating current signal is output by the filtering output circuit; the input end of the preceding stage sampling circuit is connected to the output end of the switching power supply circuit and is used for sampling a direct-current high-voltage signal output by the switching power supply circuit to form a preceding stage sampling signal; the output end of the MOS drive circuit is connected to the enabling end of the inverter circuit; the input end of the rear-stage sampling circuit is connected to the output end of the filtering output circuit and is used for sampling the high-frequency alternating current signal to form a rear-stage sampling signal; the processor is used for receiving the preceding-stage sampling signal and the subsequent-stage sampling signal and controlling the inverter circuit through the MOS drive circuit according to the preceding-stage sampling signal and the subsequent-stage sampling signal; the high-frequency generation circuit further comprises a switching power supply converter, and the output end of the switching power supply converter is connected to the enabling end of the switching power supply circuit;
the adjustment module includes:
a receiving unit for receiving a preceding stage sampling signal and a succeeding stage sampling signal;
the judgment unit is used for controlling the high-frequency generation circuit to stop working through the inverter circuit by the MOS drive circuit when the preceding-stage sampling signal does not meet the first threshold range or/and the subsequent-stage sampling signal does not meet the second threshold range;
the control unit is used for adjusting the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter according to input information and an effect model;
according to the input information and the effect model, the method for adjusting the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter comprises the following steps:
acquiring a target effect model according to the input information, wherein the target effect model is a specific target output result corresponding to the input information; the target output result comprises a target output power, a target peak-to-peak voltage and a target current value of the high-frequency alternating current signal;
acquiring an output signal of a processor to a switching power supply converter, and calculating an actual output result according to the output signal; the actual output result comprises the output power, the peak-to-peak voltage and the current value of the high-frequency alternating current signal;
and based on the target output result and the actual output result, controlling through a PID algorithm to adjust the output signal of the processor to the switching power supply converter, finally forming a PWM signal through the switching power supply converter according to the adjusted output signal, and adjusting the direct-current high-voltage signal output by the switching power supply circuit to enable the high-frequency alternating-current signal finally output by the filtering output circuit to meet the target output result.
2. The electrosurgical-based, high-frequency control device according to claim 1, wherein the effect model is a database based on the surgical mode and the parameters corresponding to the surgical mode, and the database is a two-dimensional data table.
3. The electrosurgical-based, high-frequency control device according to claim 1, wherein the effect model is a curve composed based on operation modes, each operation mode corresponding to one or more curves, the abscissa of the curve is a different parameter value corresponding to the operation mode, and the ordinate of the curve is an output result corresponding to the different parameter value of the operation mode.
4. The electrosurgical-based, high frequency control device of claim 1, wherein the parameter comprises power, the surgical modes being an electrotomy mode and an electrocoagulation mode, wherein the electrotomy mode comprises a first electrotomy, a second electrotomy, and a third electrotomy, and the electrocoagulation mode comprises a first electrocoagulation and a second electrocoagulation; the parameters corresponding to the second and third electrical switches further include a pulse interval time of the output result.
5. The electrosurgical-based high-frequency control device according to claim 1, wherein the processor includes a first CPU and a second CPU, the first CPU receiving a preceding-stage sampling signal, the second CPU receiving a succeeding-stage sampling signal, the first CPU and the second CPU performing isolated communication therebetween, the first CPU and the second CPU being connected to a PWM signal input terminal of the MOS drive circuit through a logical and gate or a logical nor gate;
when the first CPU judges that the preceding stage sampling signal does not meet the first threshold range, the first CPU controls the high-frequency generation circuit to stop working through the MOS drive circuit, and meanwhile, the first CPU also sends alarm information to the alarm through the second CPU;
the second CPU sends the rear-stage sampling signal to the first CPU, when the first CPU judges that the rear-stage sampling signal does not meet the second threshold range after calculating the rear-stage sampling signal, the first CPU controls the high-frequency generating circuit to stop working through the MOS driving circuit, and meanwhile, the first CPU also sends alarm information to the alarm through the second CPU;
and when the rear-stage sampling signal meets a second threshold range, the first CPU regulates the direct-current high-voltage signal output by the switching power supply circuit through the switching power supply converter according to the input information and the effect model.
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| US7044948B2 (en) * | 2002-12-10 | 2006-05-16 | Sherwood Services Ag | Circuit for controlling arc energy from an electrosurgical generator |
| CN101881793B (en) * | 2009-05-08 | 2013-05-01 | 深圳市金威源科技股份有限公司 | Alternating current power failure detection method and warning circuit |
| CN102921116B (en) * | 2012-11-12 | 2016-04-06 | 上海交通大学 | A kind of superficial tumor ultrasonic thermotherapy system of guided by magnetic resonance |
| US9456862B2 (en) * | 2013-02-19 | 2016-10-04 | Covidien Lp | Electrosurgical generator and system |
| CN203153938U (en) * | 2013-04-02 | 2013-08-28 | 重庆金山科技（集团）有限公司 | Novel high frequency electrotome control system and novel high frequency electrotome |
| CN103248013B (en) * | 2013-05-10 | 2014-09-17 | 温州大学 | Current transformer current-limiting protection system control device and current-limiting control method thereof |
| US9570980B2 (en) * | 2014-06-03 | 2017-02-14 | Infineon Technologies Ag | System and method for switched power supply current sampling |
| CN206745442U (en) * | 2017-01-13 | 2017-12-15 | 上海沪通电子有限公司 | A kind of control circuit of high frequency surgical equipment output |
| CN107661142B (en) * | 2017-09-20 | 2018-12-28 | 珠海维尔康生物科技有限公司 | Artificial intelligent type high frequency electrosurgical equipment |
| US20190200977A1 (en) * | 2017-12-28 | 2019-07-04 | Ethicon Llc | Method for usage of the shroud as an aspect of sensing or controlling a powered surgical device, and a control algorithm to adjust its default operation |
| CN108923665B (en) * | 2018-06-15 | 2023-06-27 | 深圳市赛格瑞电子有限公司 | AC-AC conversion circuit and device |
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