CN112807072B - Radio frequency generating circuit, device and method - Google Patents
Radio frequency generating circuit, device and method Download PDFInfo
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
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Abstract
A radio frequency generation circuit, apparatus and method, wherein the radio frequency generation circuit comprises: the device comprises a square wave generating module, a control module, a power supply module, a radio frequency generating module and a detection module; the control module is connected with the square wave generation module, the power supply module and the detection module, and the radio frequency generation module is connected with the power supply module and the square wave generation module; the control module controls the square wave generation module to output square wave signals and controls the power supply module to output wide voltage signals reaching a preset adjustable range, and the square wave signals and the wide voltage signals are processed by the radio frequency generation module and output radio frequency signals to a load end; the detection module detects the electric signal parameter value of the load end and sends the electric signal parameter value to the control module, and the control module controls the power supply module to adjust the voltage value of the wide voltage signal according to the electric signal parameter value, so that the output radio frequency signal power is a preset value, the adjustment precision of the radio frequency signal power can be improved, and the control precision of the radio frequency output is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of electronics, in particular to a radio frequency generation circuit, a radio frequency generation device and a radio frequency generation method.
Background
In Radio Frequency (RF) output devices, such as some high Frequency therapy devices, it is desirable to generate RF energy for RF output.
In the prior art, the frequency output of the radio frequency energy in the radio frequency energy generating device is not accurate and determined, and the power supply generating the radio frequency cannot realize wide voltage output, so that the control accuracy in the use process is not enough, for example, the accurate control of the voltage and the current of the physiological tissues can not be realized in the radio frequency ablation process.
Disclosure of Invention
The embodiment of the application provides a radio frequency generation circuit, a radio frequency generation device and a radio frequency generation method, which can realize wide voltage output of a power supply, so that the precision of the frequency of an output radio frequency signal is improved.
An aspect of an embodiment of the present application provides a radio frequency generating circuit, including:
the device comprises a square wave generating module, a control module, a power supply module, a radio frequency generating module and a detection module;
the control module is connected with the square wave generation module, the power supply module and the detection module, and the radio frequency generation module is connected with the power supply module and the square wave generation module;
the control module controls the square wave generation module to output a square wave signal and controls the power supply module to output a wide voltage signal reaching a preset adjustable range, and the square wave signal and the wide voltage signal are processed by the radio frequency generation module to output a radio frequency signal to a load end;
the detection module detects the electric signal parameter value of the load end and sends the electric signal parameter value to the control module, and the control module controls the power supply module to adjust the voltage value of the wide voltage signal according to the electric signal parameter value, so that the output radio frequency signal power is a preset value.
An aspect of the embodiments of the present application further provides a radio frequency generating apparatus, including the radio frequency generating circuit as described above.
An aspect of the embodiments of the present application further provides a radio frequency generating method, where the radio frequency generating circuit generates a radio frequency signal, including:
the control module is used for controlling the square wave generation module to output square wave signals and controlling the power supply module to output wide voltage signals reaching a preset adjustable range, and the square wave signals and the wide voltage signals are processed by the radio frequency generation module and output radio frequency signals to a load end;
and controlling the control module to control the power supply module to adjust the voltage value of the wide voltage signal according to the electric signal parameter value, so that the power of the output radio frequency signal is a preset value.
As can be seen from the foregoing embodiments of the present application, through a control module in a radio frequency generation circuit, the control square wave generation module outputs a square wave signal and the control power supply module outputs a wide voltage signal having a wide adjustable value range to the radio frequency module, the radio frequency module processes the square wave signal and the voltage signal to generate a radio frequency signal and outputs the radio frequency signal to a load terminal, the detection module detects an electrical signal parameter value of the load terminal under the action of the radio frequency signal and feeds back the electrical signal parameter value to the control module, the control module calculates an adjusted voltage value according to the electrical signal parameter value, and controls the power supply module to adjust the voltage value of the wide voltage signal, so that the power of the output radio frequency signal is a preset value, thereby improving the adjustment accuracy of the power of the radio frequency signal, and dynamically adjusting the power value of the radio frequency signal in time during the output of the radio frequency signal, thereby improving the control accuracy of the radio frequency output. And through the detection and feedback of the parameter values of the electric signals, the comparison between the set value and the actual value of the radio frequency output power can be realized, and further necessary adjustment and correction are carried out.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without inventive labor.
Fig. 1 is a schematic block diagram of a radio frequency generating circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic block diagram of a radio frequency generating circuit according to another embodiment of the present disclosure;
fig. 3 is a schematic circuit structure diagram of a radio frequency generating circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of square wave signals output by two pulse width modulators in the rf generating circuit according to the embodiment of the present application;
FIG. 5 is a schematic diagram of an RF signal output from an RF generating circuit to a load according to an embodiment of the present application;
fig. 6 is a schematic circuit structure diagram of an rf generating circuit provided in another embodiment of the present application, in which an enable module and a level shift module are added;
fig. 7 is a flowchart illustrating a radio frequency generation method according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specifically, referring to fig. 1, a schematic block structure diagram of a radio frequency generation circuit according to an embodiment of the present application is provided. This radio frequency generating circuit accessible adjusts output voltage immediately, realizes the radio frequency signal of accurate output default power value, realizes output power's stability, as shown in fig. 1, this radio frequency generating circuit specifically includes:
the device comprises a square wave generating module 10, a control module 20, a power supply module 30, a radio frequency generating module 40 and a detecting module 50;
the control module 20 is connected with the square wave generation module 10, the power supply module 30 and the detection module 50;
the radio frequency generation module 40 is connected with the power supply module 30 and the square wave generation module 10;
the control module 20 controls the square wave generating module 10 to output a square wave signal meeting the radio frequency energy generating preset conditions, and controls the power supply module 30 to output a wide voltage signal reaching a preset adjustable range, preferably, the voltage adjustable range of the wide voltage signal is 0-56V (volt). The square wave signal and the wide voltage signal are processed by a radio frequency generation module 40, and a radio frequency signal is output to a load end;
the detecting module 50 detects a value of an electrical signal parameter at the load end during the transmission of the radio frequency signal, specifically, detects an impedance value at the load end, or detects a voltage value and a current value at the load end, and the impedance value can be calculated according to the voltage value and the current value, that is, the impedance value, the current value, and the voltage value at the load end can be mutually converted according to the formula U = IR. Further, the detected parameter value of the electrical signal is sent to the control module 20, and the control module 20 controls the power supply module 30 to adjust the voltage value of the wide voltage signal according to the parameter value of the electrical signal, so that the power of the output radio frequency signal is a preset value, and the power value of the output radio frequency signal is accurately controlled.
Specifically, the adjustment is according to the formula: p = U 2 Or, P = IU, wherein,p is a power preset value of the rf signal, R is an impedance value measured by the load terminal, I is a current value measured by the load terminal, and U is a voltage value adjusted by the wide voltage signal.
In the embodiment of the application, a control module in a radio frequency generation circuit controls a square wave generation module to output a square wave signal, and controls a power supply module to output a wide voltage signal with a wide adjustable value range to the radio frequency generation module, the radio frequency generation module processes the square wave signal and the voltage signal to generate a radio frequency signal, and outputs the radio frequency signal to a load end, a detection module detects an electrical signal parameter value of the load end under the action of the radio frequency signal, and feeds the electrical signal parameter value back to the control module, the control module calculates an adjusted voltage value according to the electrical signal parameter value, and controls the power supply module to adjust the voltage value of the wide voltage signal, so that the power of the output radio frequency signal is a preset value, the adjustment precision of the power of the radio frequency signal is improved, the power value of the radio frequency signal is dynamically adjusted in time in the output process of the radio frequency signal, and the control precision of the radio frequency output is improved. And through the detection and feedback of the parameter values of the electric signals, the comparison between the set value and the actual value of the radio frequency output power can be realized, and further necessary adjustment and correction are carried out.
Referring to fig. 2, fig. 2 is a schematic block diagram of a radio frequency generating circuit according to another embodiment of the present disclosure. The rf generating circuit may further include an enabling module 60 and a level shifting module 70.
The enabling module 60 is connected to the control module 20 and the square wave generating module 10, and is configured to enable or disable the square wave generating module 10 to output the square wave signal under the control of the control module 20;
the level shifting module 70 is connected to the enabling module 60 and the rf generating module 40 for shifting the level.
Compared with the embodiment shown in fig. 1, the enable module and the level shift module are added to the rf generating circuit, so as to further improve the controllability and the control accuracy of the circuit.
Specifically, referring to fig. 3, the circuit diagram of the radio frequency generating circuit shown in fig. 1 specifically includes: a first pulse width modulator 11 (i.e., PWMH in fig. 3) and a second pulse width modulator 12 (i.e., PWML in fig. 3), both of the first pulse width modulator 11 and the second pulse width modulator 12 are connected to the control module 20, and respectively emit a first square wave signal and a second square wave signal with opposite phases under the control of the control module 20, as shown in fig. 4.
The control module 20 specifically includes: a Micro Control Unit (MCU) 21 and a Digital-to-Analog Converter (DAC) 22, wherein the MCU21 is connected with the detection module 50 and the DAC22, and the DAC22 is also connected with the output voltage control of the power supply module 30, namely an SC terminal.
The model of the MCU21 may be the dsPIC33FJ16GS502, and the MCU21 may be an integrated circuit of another form.
After the power supply module 30 processes the signal input by the power supply, a wide voltage signal reaching a preset adjustable range can be input, and the adjustable range of the voltage value is wide, so that the frequency of the output radio frequency signal has a wide adjustable range, and the performance of radio frequency output is improved. The wide voltage signal enters the rf generation module 40 through the filter circuit formed by L1 and C1.
The radio frequency generation module 40 specifically includes: the radio frequency transformer T1, a first field effect tube Q1, a second field effect tube Q2, a first capacitor C2 and a second capacitor C3;
the radio frequency transformer T1 comprises a primary side consisting of a first input loop and a second input loop, the on-off time of the first input loop is opposite to that of the second input loop, and the winding direction is opposite; the radio frequency transformer T1 also comprises a secondary side formed by a third output loop.
The first Field Effect Transistor Q1 and the second Field Effect Transistor Q2 are specifically MOS (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) transistors.
The grid electrode of the first MOS tube Q1 is connected with PWMH, the drain electrode is connected with one end of the C2 and the first input loop, and the source electrode is grounded and connected with the other end of the C2;
the gate of the second MOS transistor Q2 is connected to PWML, the drain is connected to one end of C3 and the second input loop, and the source is grounded and connected to the other end of C3.
After the wide voltage signal output by the power supply module 30 passes through T1, C2, Q1, C3, and Q2, a sine wave voltage U having the same frequency as PWMH and PWML can be formed on the secondary side of T1, as shown in fig. 5.
The detection module 50 may be a detector capable of detecting resistance, voltage and current, or a detection circuit, and the specific implementation form is not limited.
The above circuit can achieve the object of the present invention, and further, between PWMH and Q1, and between PWML and Q2, an enabling module 60 and a level converting module 70 can be further connected, so as to further improve the controllability and control accuracy of the circuit.
A connection circuit diagram of the enable block 60 and the level shift block 70 with PWMH, Q1, PWML, and Q2, referring to fig. 6, the enable block 60 includes a first enable chip 61 and a second enable chip 62, and the level shift block 70 includes a first gate driver 71 and a second gate driver 72;
the first enabling chip 61 is connected with the MCU21, the PWMH and the first gate driver 71, and the first gate driver 71 is also connected with the gate of the Q1; the second enable chip 62 is connected to the MCU21, PWML and the second gate driver 72, and the second gate driver 72 is further connected to the gate of Q2. Further details of the connection are shown in the figure.
The basic operation principle of the radio frequency generation circuit in the above embodiment: the MCU controls the square wave signals generated by the PWMH and the PWML in opposite directions to drive the Q1 and Q2 switches, and the square wave signals enter the primary side of the T1. After a signal input by a power supply is processed by the power supply module, a wide voltage signal reaching a preset adjustable range can be output, the wide voltage signal enters the primary side of a radio frequency transformer T1, after passing through T1, C2, Q1, C3 and Q2, sine wave voltages with the same frequency as PWMH and PWML can be respectively formed on the secondary side of the T1, and a radio frequency signal is output to a load end, wherein the load end is RF _ P and RF _ N shown in the figure. When a radio-frequency signal acts on a load end, a detection module detects the impedance of the load end or the current and the voltage of the load end, and feeds the detected value back to the MCU for processing, the MCU calculates a voltage value reaching preset radio-frequency power according to a relational expression between power, impedance and current, sends a control signal to an SC end of a power supply module through the DAC, and adjusts an OUT + end to output a signal of the voltage value, so that the power of the output radio-frequency energy is adjusted to be a preset value.
In another embodiment of the present application, there is also provided a radio frequency generating apparatus, including the radio frequency generating circuit provided in the above embodiments, the radio frequency generating circuit may be integrated in the radio frequency generating apparatus as a whole, or may be integrated in the radio frequency generating apparatus according to each module or several modules described in the above embodiments. The specific structure and operation principle of the radio frequency generating circuit are described in the above embodiments. The radio frequency generating device can be used for radio frequency treatment, and the load end is the physiological tissue of a human body needing treatment.
In the radio frequency generating device in this embodiment, the control module in the radio frequency generating circuit controls the square wave generating module to output a square wave signal, and controls the power supply module to output a wide voltage signal having a wide adjustable value range to the radio frequency module, the radio frequency module processes the square wave signal and the voltage signal to generate a radio frequency signal and outputs the radio frequency signal to the load terminal, the detection module detects an electrical signal parameter value of the load terminal under the action of the radio frequency signal and feeds back the electrical signal parameter value to the control module, the control module calculates an adjusted voltage value according to the electrical signal parameter value, and controls the power supply module to adjust the voltage value of the wide voltage signal, so that the power of the radio frequency signal output by the radio frequency generating device is a preset value, thereby improving the adjustment precision of the power of the radio frequency signal, dynamically adjusting the power value of the radio frequency signal in time in the output process of the radio frequency signal, improving the control precision of the radio frequency output, ensuring the therapeutic effect and the safety of a human body during radio frequency therapy, and by detecting and feeding back the electrical signal parameter value, the comparison between the set value and the actual value of the radio frequency output power can be realized, thereby performing necessary adjustment and correction.
Referring to fig. 7, in another embodiment of the present application, there is provided a radio frequency generating method, which may generate a radio frequency signal by using the radio frequency generating device and the radio frequency generating circuit in the embodiment, the method including:
s101, controlling a square wave generating module to output a square wave signal through a control module, controlling a power supply module to output a wide voltage signal reaching a preset adjustable range, and outputting a radio frequency signal to a load end after the square wave signal and the wide voltage signal are processed by a radio frequency generating module;
s102, the control detection module detects the electric signal parameter value of the load end and sends the electric signal parameter value to the control module, and the control module controls the power supply module to adjust the voltage value of the wide voltage signal according to the electric signal parameter value, so that the power of the output radio frequency signal is a preset value.
Specifically, the electrical signal parameter value includes a resistance value, or a current value and a voltage value from which the resistance value can be calculated.
Controlling the control module to calculate and output the radio-frequency signal power as a voltage value corresponding to the preset value according to the resistance value and a preset power calculation formula, or controlling the control module to calculate and output the radio-frequency signal power as a voltage value corresponding to the preset value according to the current value, the voltage value, a preset resistance calculation formula and a preset power calculation formula;
wherein, the preset power calculation formula comprises: p = U 2 R, or, P = IU; the preset resistance calculation formula is as follows: r = U/I.
And controlling the power supply module to adjust the voltage value of the wide voltage signal to be the voltage value corresponding to the calculated preset value, so that the power of the output radio frequency signal is the preset value.
For further technical details of the radio frequency generating circuit and the radio frequency generating device used in the radio frequency generating method, reference is made to the description of the foregoing embodiments.
In the embodiment of the application, through a control module in a radio frequency generating circuit, a control square wave generating module outputs a square wave signal and a control power supply module outputs a wide voltage signal with a wide adjustable value range to a radio frequency module, the radio frequency module processes the square wave signal and the voltage signal to generate a radio frequency signal and outputs the radio frequency signal to a load end, a detection module detects an electric signal parameter value of the load end under the action of the radio frequency signal and feeds the electric signal parameter value back to the control module, the control module calculates and obtains an adjusted voltage value according to the electric signal parameter value, and the control power supply module adjusts the voltage value of the wide voltage signal to enable the power of the output radio frequency signal to be a preset value, so that the adjustment precision of the power of the radio frequency signal is improved, the power value of the radio frequency signal is dynamically adjusted in time in the output process of the radio frequency signal, and the control precision of the radio frequency output is improved. And through the detection and feedback of the parameter values of the electric signals, the comparison between the set value and the actual value of the radio frequency output power can be realized, and further necessary adjustment and correction are carried out.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the radio frequency generating circuit, the radio frequency generating apparatus and the radio frequency generating method provided by the present invention, those skilled in the art will recognize that changes may be made in the embodiments and applications of the invention.
Claims (8)
1. A radio frequency generation circuit, comprising:
the device comprises a square wave generating module, a control module, a power supply module, a radio frequency generating module and a detection module;
the control module is connected with the square wave generation module, the power supply module and the detection module, and the radio frequency generation module is connected with the power supply module and the square wave generation module;
the control module controls the square wave generation module to output a square wave signal and controls the power supply module to output a wide voltage signal reaching a preset adjustable range, and the square wave signal and the wide voltage signal are processed by the radio frequency generation module to output a radio frequency signal to a load end;
the detection module detects the electric signal parameter value of the load end and sends the electric signal parameter value to the control module, and the control module controls the power supply module to adjust the voltage value of the wide voltage signal according to the electric signal parameter value so that the power of the output radio frequency signal is a preset value;
wherein, the square wave generating module comprises: a first pulse width modulator and a second pulse width modulator;
the first pulse width modulator and the second pulse width modulator are both connected with the control module and respectively send out a first square wave signal and a second square wave signal with opposite phases under the control of the control module;
wherein the electrical signal parameters include: resistance values, or, voltage values and current values;
the control module controls the power supply module to adjust the voltage value of the wide voltage signal according to the electric signal parameter value, so that the output radio frequency signal power is a preset value, and the method comprises the following steps:
the control module calculates and outputs the radio-frequency signal power to be a voltage value corresponding to the preset value according to the resistance value and a preset power calculation formula, or the control module calculates and outputs the radio-frequency signal power to be a voltage value corresponding to the preset value according to the current value, the voltage value, a preset resistance calculation formula and a preset power calculation formula;
and controlling the power supply module to adjust the voltage value of the wide voltage signal to be the voltage value corresponding to the calculated preset value, so that the power of the output radio frequency signal is the preset value.
2. The radio frequency generation circuit of claim 1, wherein the radio frequency generation module comprises: the radio frequency transformer, the first field effect transistor, the second field effect transistor, the first capacitor and the second capacitor;
the radio frequency transformer comprises a primary side consisting of a first input loop and a second input loop, the switching-on and switching-off time of the first input loop is opposite to that of the second input loop, and the winding direction is opposite;
the grid electrode of the first field effect transistor is connected with the first pulse width modulator, the drain electrode of the first field effect transistor is connected with one end of the first capacitor and the first input loop, and the source electrode of the first field effect transistor is grounded and connected with the other end of the first capacitor;
and the grid electrode of the second field effect transistor is connected with the second pulse width modulator, the drain electrode of the second field effect transistor is connected with one end of the second capacitor and the second input loop, and the source electrode of the second field effect transistor is grounded and connected with the other end of the second capacitor.
3. The radio frequency generation circuit of claim 2, wherein the control module comprises: a micro control unit and a digital-to-analog converter;
the micro control unit is connected with the detection module and the digital-to-analog converter, and the digital-to-analog converter is also connected with an output voltage control end of the power supply module.
4. The radio frequency generation circuit according to claim 3, further comprising: the device comprises an enabling module and a level conversion module;
the enabling module is connected with the control module, the square wave generating module and the level conversion module;
the level conversion module is also connected with the radio frequency generation module.
5. The radio frequency generation circuit according to claim 4, wherein the enable module includes a first enable chip and a second enable chip, and the level shift module includes a first gate driver and a second gate driver;
the first enabling chip is connected with the micro control unit, the first pulse width modulator and the first grid driver, and the first grid driver is also connected with a grid of the first field effect transistor;
the second enabling chip is connected with the micro control unit, the second pulse width modulator and the second grid driver, and the second grid driver is further connected with the grid of the second field effect transistor.
6. A radio frequency generating apparatus comprising the radio frequency generating circuit according to any one of claims 1 to 5.
7. A radio frequency generating method for generating a radio frequency signal by the radio frequency generating circuit according to any one of claims 1 to 5, comprising:
the control module is used for controlling the square wave generation module to output square wave signals and controlling the power supply module to output wide voltage signals reaching a preset adjustable range, and the square wave signals and the wide voltage signals are processed by the radio frequency generation module and output radio frequency signals to a load end;
the control detection module detects the electric signal parameter value of the load end, sends the electric signal parameter value to the control module, and controls the control module to control the power supply module to adjust the voltage value of the wide voltage signal according to the electric signal parameter value, so that the power of the output radio frequency signal is a preset value;
wherein the square wave generation module comprises: a first pulse width modulator and a second pulse width modulator;
the first pulse width modulator and the second pulse width modulator are both connected with the control module and respectively send out a first square wave signal and a second square wave signal with opposite phases under the control of the control module.
8. The radio frequency generation method according to claim 7, wherein the electrical signal parameter values include resistance values, or current values and voltage values;
the controlling the control module controls the power supply module to adjust the voltage value of the wide voltage signal according to the parameter value of the electric signal, so that the output radio frequency signal power is a preset value, and the method comprises the following steps:
controlling the control module to calculate and output the radio-frequency signal power as a voltage value corresponding to the preset value according to the resistance value and a preset power calculation formula, or controlling the control module to calculate and output the radio-frequency signal power as a voltage value corresponding to the preset value according to the current value and the voltage value, a preset resistance calculation formula and a preset power calculation formula;
and controlling the power supply module to adjust the voltage value of the wide voltage signal to be the voltage value corresponding to the calculated preset value, so that the power of the output radio frequency signal is the preset value.
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| CN115177362B (en) * | 2022-09-13 | 2022-12-06 | 北京杰西慧中科技股份有限公司 | Automatic power regulating and controlling device for high-frequency electrotome |
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| CN101085391B (en) * | 2007-06-29 | 2010-05-26 | 重庆大学 | Device for inducing tumor cell apoptosis by high-voltage nanosecond pulse |
| CN103417292A (en) * | 2013-06-06 | 2013-12-04 | 上海理工大学 | Electrosurgery simulation system |
| CN107317484B (en) * | 2017-08-20 | 2023-12-12 | 昆山雷盛医疗科技有限公司 | Universal active surgical instrument power generator and control method thereof |
| CN108095820B (en) * | 2018-02-07 | 2023-07-11 | 上海倍可达医疗科技有限公司 | Nanometer knife tumor ablation control device and control method thereof |
| CN110504875A (en) * | 2019-08-23 | 2019-11-26 | 西北工业大学 | A kind of square-wave voltage method for implanting based on asymmetric pulse widths modulation |
| CN214805313U (en) * | 2020-12-31 | 2021-11-23 | 杭州堃博生物科技有限公司 | Radio frequency generating circuit, device and radio frequency host |
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2020
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