CN114391941A - Control method, device, equipment and storage medium of radio frequency ablation circuit - Google Patents
Control method, device, equipment and storage medium of radio frequency ablation circuit Download PDFInfo
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- 239000011780 sodium chloride Substances 0.000 description 3
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- 239000002504 physiological saline solution Substances 0.000 description 2
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- CJERUMAUMMIPRF-FQEVSTJZSA-N n-[(2s)-3-(4-hydroxyphenyl)-1-(4-nitroanilino)-1-oxopropan-2-yl]benzamide Chemical compound C1=CC(O)=CC=C1C[C@@H](C(=O)NC=1C=CC(=CC=1)[N+]([O-])=O)NC(=O)C1=CC=CC=C1 CJERUMAUMMIPRF-FQEVSTJZSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011297 radiofrequency ablation treatment Methods 0.000 description 1
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Abstract
The invention provides a control method, a device, equipment and a storage medium of a radio frequency ablation circuit, wherein the radio frequency ablation circuit comprises a power supply unit and a radio frequency energy generating unit connected with the power supply unit, and the control method comprises the following steps: acquiring impedance information of a load end of the radio frequency ablation circuit; determining a current power supply mode of the power supply unit based on the impedance information; instructing the power supply unit to output power to the radio frequency energy generation unit in the current power supply mode.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a control method, a control device, control equipment and a storage medium of a radio frequency ablation circuit.
Background
The radio frequency ablation treatment is an accurate minimally invasive operation which precisely punctures radio frequency energy to a tumor target area to implement a minimally invasive ablation operation under the guidance of images. Because the biological tissue environment is complex, the radio frequency energy output mode can be adjusted according to the condition of the ablated tissue in the radio frequency ablation process.
During the radio frequency ablation process, the stability of the ablation target impedance can affect the radio frequency ablation effect. Because the environment of the biological tissue is complex, the position of the electrode tip in the biological tissue, the flow rate of the physiological saline in the biological tissue, and the wrapping degree of the electrode tip by the physiological tissue all affect the stability of impedance in the ablation process. The existing single-mode radio frequency energy output device can only fixedly output radio frequency energy of one mode in the ablation process, and is not beneficial to ensuring the radio frequency ablation effect and the ablation success rate.
Disclosure of Invention
The invention provides a control method, a control device, control equipment and a storage medium of a radio frequency ablation circuit, and aims to solve the problem that only one mode of radio frequency energy can be fixedly output in an ablation process.
According to a first aspect of the present invention, there is provided a control method for a radio frequency ablation circuit, the radio frequency ablation circuit including a power supply unit, and a radio frequency energy generation unit connected to the power supply unit, comprising:
acquiring impedance information of a load end of the radio frequency ablation circuit;
determining a current power supply mode of the power supply unit based on the impedance information;
instructing the power supply unit to output power to the radio frequency energy generation unit in the current power supply mode.
Optionally, determining the current power supply mode of the power supply unit based on the impedance information includes:
calculating fluctuation parameters of impedance information in a specified duration, wherein the fluctuation parameters represent the fluctuation degree of the impedance information in the specified duration;
responding to the fluctuation parameter lower than a preset fluctuation threshold value, and determining that the constant power mode is the current power supply mode; the constant power mode refers to: the power supply unit maintains the output power of the power supply module at a specified power or within a specified power range.
Optionally, determining the current power supply mode of the power supply unit based on the impedance information includes:
if the fluctuation parameter is higher than the fluctuation threshold value, determining that the constant voltage mode or the constant current mode is the current power supply mode; the constant voltage mode refers to: the power supply unit keeps the output voltage of the power supply unit at a specified voltage or a specified voltage range, and the constant current mode refers to: the power supply unit maintains an output current of the power supply unit at a specified current or a specified current range.
Optionally, determining that the constant voltage mode or the constant current mode is the current power supply mode includes:
comparing the target impedance information with a preset impedance threshold; the target impedance information is a statistic value of the impedance information in the specified duration, or: impedance information at the present time;
if the target impedance information is smaller than the impedance threshold value, determining that the constant current mode is the current power supply mode;
and if the target impedance information is larger than the impedance threshold value, determining that the constant voltage mode is the current power supply mode.
Optionally, calculating a fluctuation parameter of the impedance information within the specified time duration includes:
and calculating the difference value between the maximum value and the minimum value of the impedance information in the specified time length, and taking the difference value as the fluctuation parameter.
Optionally, acquiring impedance information of a load end of the radio frequency ablation circuit includes:
acquiring the electrical parameter of the load end detected by the detection unit; the electrical parameter comprises a voltage and/or a current;
based on the electrical parameter, the impedance information is calculated.
According to a second aspect of the present invention there is provided a control device for a radio frequency ablation circuit, comprising:
the impedance obtaining module is used for obtaining impedance information of the load end of the radio frequency ablation device;
a current mode determination module for determining a current power supply mode of the power supply unit based on the impedance information;
and the mode indicating module is used for indicating the power supply unit to output power to the radio frequency energy generating unit in the current power supply mode.
According to a third aspect of the present invention, there is provided a radio frequency ablation apparatus comprising a radio frequency ablation circuit and a controller, the radio frequency ablation circuit comprising a power supply unit, and a radio frequency energy generation unit connected to the power supply unit;
the power supply unit is used for supplying power to the radio frequency energy generating unit under the control of the controller;
the controller is adapted to perform the control method of the first aspect and its alternatives.
According to a fourth aspect of the present invention, there is provided an electronic device, comprising a processor and a memory,
the memory is used for storing codes;
the processor is configured to execute the code in the memory for implementing the control method of the first aspect and its alternatives.
According to a fifth aspect of the present invention, there is provided a storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of the first aspect and its alternatives.
In the control method, the device, the equipment and the storage medium of the radio frequency ablation circuit, the radio frequency ablation circuit comprises a power supply unit and a radio frequency energy generating unit connected with the power supply unit; the current power supply mode of the power supply unit is determined by obtaining the impedance information of the load end of the ablation circuit, and the power supply unit is indicated to output power to the radio frequency energy generating unit in the current power supply mode, so that the self-adaptive change of the power supply mode can be realized, the power supply requirements of radio frequency ablation under different impedance conditions are met, and an applicable means is provided for guaranteeing the radio frequency ablation effect and the ablation success rate.
In an alternative aspect of the present invention, the output mode (i.e. the power supply mode) of the rf energy output device is determined by comparing the fluctuation parameter of the impedance information with a preset fluctuation threshold, wherein when the fluctuation parameter is lower than the fluctuation threshold, the constant power mode is used as the current power supply mode, and after the power supply of the power supply unit is supplied to the rf energy generating unit, the current density of the rf signal generated by the power supply unit determines the ablation effect, and the ablation effect is determined according to P ═ I2The action principle of R and the stable impedance can ensure the radio frequency signal output by the radio frequency generating unit during constant power ablationThe current is stable, and the ablation effect is better. When the impedance is unstable (in some cases, it means that the saline is easy to flow away, for example, the ablated tumor is located on the airway wall), the fluctuation parameter is higher than the fluctuation threshold, the constant power control is difficult to ensure the stability of the radio frequency signal current, but instead, the constant power control has a slow response speed and is easy to form a very large (extremely small) current and voltage to bring a safety hazard, so the constant voltage mode or the constant current mode can be selected at this time. Therefore, the factors such as ablation effect, safety and the like in the constant power mode and other modes are fully considered by the alternative scheme, so that the self-adaptive mode switching based on impedance is realized, and the effects of ensuring the ablation effect, the safety and the like are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic representation of the configuration of a radio frequency ablation device in an exemplary embodiment of the invention;
FIG. 2 is a schematic electrical circuit diagram of a radio frequency ablation device in an exemplary embodiment of the invention;
FIG. 3 is a flow chart illustrating a method of controlling the RF ablation circuitry in accordance with an exemplary embodiment of the invention;
FIG. 4 is a schematic flow chart illustrating the determination of a current power mode in an exemplary embodiment of the invention;
FIG. 5 is a schematic flow chart of determining whether constant current mode or constant voltage mode in an exemplary embodiment of the invention;
FIG. 6 is a schematic diagram of program modules of a control apparatus for RF ablation in an exemplary embodiment of the invention;
fig. 7 is a schematic diagram of the configuration of an electronic device in an exemplary embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Referring to fig. 1, an embodiment of the present invention provides an rf ablation apparatus, including an rf ablation circuit 101 and a controller 105, where the rf ablation circuit 101 includes: a power supply unit 102, a radio frequency energy generation unit 103, and a detection unit 104.
A control end of the power supply unit 102 is connected to a first end of the controller 105, and an output end of the power supply unit 102 is connected to the radio frequency energy generating unit 103;
the power supply unit 102 is used for supplying power to the radio frequency energy generating unit 103 under the control of the controller;
the radio frequency energy generation unit 103 is used for outputting a radio frequency signal adapted to the power supply to a load end (i.e., an ablation target);
the detecting unit 104 is connected to the output end of the rf energy generating unit 103, for example, the detecting unit 104 can be used to detect an electrical parameter at the load end and feed the electrical parameter back to the controller 105, and the controller 105 can calculate impedance information based on the electrical parameter; in another example, the detecting unit 104 may detect an electrical parameter at the load end and calculate a signal (e.g., implemented by an analog divider) representing impedance information, so as to feed back the impedance information to the controller 105.
The impedance information may be any information capable of describing the impedance of the load end, and may be information such as an impedance value, or an interval range of the impedance value.
The controller 105 may be any component or combination of components having data processing capability, which can be used to implement the embodiments of the present invention
In one example, the controller 105 controls the output of the power supply unit 102 through digital communication, so as to control the output of the rf energy generating unit 103 to switch the operating state. During ablation, if the impedance information is identified by the controller 105 as the load end impedance is stable, the power supply unit is controlled to select the constant power mode; on the contrary, if the impedance of the load end is unstable, the power supply unit is controlled to select a constant current or constant voltage mode;
referring to fig. 2, the rf ablation unit 201, the power supply unit 202, the detection unit 203, and the controller 204 are the same as or similar to the power supply unit 102, the rf energy generation unit 103, the detection unit 104, and the controller 105 in the embodiment illustrated in fig. 1, and the same or similar contents are not repeated herein.
In the embodiment shown in fig. 2, the rf ablation circuit further includes a square wave unit 205 for generating a square wave, and a second end of the square wave unit 205 is connected to the rf energy generating unit 201.
The square wave unit 205 includes a first pulse modulator 2051 (i.e., PWMH) and a second pulse modulator 2052 (i.e., PWML), and the first pulse modulator 2051 (i.e., PWMH) and the second pulse modulator 2052 (i.e., PWML) output square wave signals having opposite phases.
The radio frequency energy generation unit 201 includes: the circuit comprises a first switch tube Q1, a second switch tube Q2, a first capacitor C1, a second capacitor C2, a primary winding T1, a first resistor R1 and a second resistor R2.
In the embodiment shown in fig. 2, the first pulse modulator 2051 (i.e., PWMH) is connected to the gate of the first switching tube Q1, the second pulse modulator 2052 (i.e., PWML) is connected to the gate of the second switching tube Q2, the first terminal of the first switching tube Q1 is connected to the first terminal of the primary winding T1 of the transformer, the first terminal of the second switching tube Q2 is connected to the second terminal of the primary winding T1 of the transformer, the first terminal of the first capacitor C1 is connected to the first terminal of the first switching tube Q1, and the second terminal of the first capacitor C1 is grounded; the first end of the second capacitor C2 is connected to the first end of the second switch Q2, and the second end of the second capacitor C2 is grounded.
When the output of the first pulse modulator 2021 (i.e., PWMH) is at a high level, the first switching tube Q1 is turned on, and the dc voltage output by the power supply unit 201 passes through the primary side of the primary winding T1 of the transformer, the first capacitor C1, and the first switching tube Q1 to form a loop, and a sine wave is oscillated to output RF _ P. Similarly, when the output of the first pulse modulator 2052 (i.e., PWML) is at a high level, the second switch Q2 is turned on, and RF _ N is outputted.
Referring to fig. 3, an embodiment of the present invention provides a method for controlling a radio frequency ablation circuit, including:
s301: acquiring impedance information of a load end of the radio frequency ablation circuit;
in one example, the process of step S301 includes a process of acquiring an electrical parameter (e.g., voltage and/or current) of the load terminal detected by the detection unit, and then calculating impedance information based on the electrical parameter, and in another example, the process of step S301 includes a process of directly acquiring impedance information from the detection module;
s302: determining a current power supply mode of the power supply unit based on the impedance information;
wherein the determined current power supply mode can be a constant power mode, a constant current mode or a constant voltage mode;
the constant power mode refers to: the power supply unit keeps the output power of the power supply unit at a specified power or a specified power range;
the constant voltage mode refers to: the power supply unit keeps the output voltage of the power supply unit at a specified voltage or a specified voltage range;
the constant current mode refers to: the power supply unit maintains an output current of the power supply unit at a specified current or a specified current range.
S303: instructing the power supply unit to output power to the radio frequency energy generation unit in the current power supply mode.
In the above scheme, before the radio frequency ablation, the impedance information of the load end is judged in step S301, and then it is determined in step S302 that the mode of the radio frequency ablation is a constant power or constant current or constant voltage mode, so as to obtain an output mode required by the radio frequency, and then the output mode is output in step S303. The selectivity of the radio frequency energy output mode is enlarged, the self-adaptive change of the power supply mode can be realized, the power supply requirement of radio frequency ablation under different impedance conditions is met, an applicable means is provided for guaranteeing the radio frequency ablation effect and the ablation success rate, and on the basis, the work efficiency of the radio frequency energy generating unit and the ablation success rate can be improved.
Referring to fig. 4, determining the current power supply mode of the power supply unit based on the impedance information includes:
s401: the fluctuation parameter of the impedance information in a specified time period is calculated,
the fluctuation parameter represents the fluctuation degree of the impedance information in the specified duration;
s402: whether the fluctuation parameter is higher than a preset fluctuation threshold value;
the preset fluctuation threshold is a standard set by related personnel;
if the determination result in step S402 is yes, step S403 is executed: and determining the constant power mode as the current power supply mode.
For example, the fluctuation parameter in a specified time period is determined by the impedance value of the impedance information, such as: obtaining the maximum value and the minimum value of the impedance information of the load end in the specified time length by bubble sorting, quick sorting or other sorting methods according to the acquired impedance information of the load end in the specified time length, wherein the difference value of the maximum value and the minimum value is the fluctuation parameter in the specified time length; namely: in a specific example of step S401, a difference between a maximum value Rmax and a minimum value Rmin of the impedance information R in the specified time period may be calculated, and the difference Δ R is used as the fluctuation parameter. As can be seen, Δ R — Rmax-Rmin. Wherein the criterion for measuring the fluctuation parameter is not unity.
In other examples, the fluctuation parameter may be calculated by calculating a difference between a mean value and a maximum value (or a minimum value) of the impedance information, or by calculating a difference between a mean value and a maximum value, or a difference between a mean value and a minimum value, respectively, and then calculating a mean value of the two difference values as the fluctuation parameter, or by calculating a variance of the impedance information as the fluctuation parameter; in any way, the scope of the embodiments of the present invention is not deviated from. If the determination result in step S402 is yes, step S404 may be implemented: and determining the constant voltage mode or the constant current mode as the current power supply mode.
And comparing the obtained fluctuation parameters with a preset fluctuation threshold value, and selecting a constant power mode as a power supply mode if the fluctuation range is small. The output device is used for treating lung diseases, the electrodes are inserted into tumors in the radio frequency ablation, the polar molecules in the tumor tissues are vibrated at high speed through radio frequency current and rubbed with each other to convert radio frequency energy into heat energy, finally the tumor tissues are subjected to coagulation necrosis, the different impedance characteristics of the tumor tissues at the positions of the lungs are different, the tumors existing in the lung parenchyma can be punched on the bronchial wall of the bronchus according to the BTPNA technology, then a tunnel is established, the electrode needle reaches the nodules in the lung parenchyma through a working channel, the impedance can be maintained to be stable through pouring physiological saline when the tumors in the lung parenchyma are ablated, and the constant-power ablation can be selected at the moment because the electrodes are used for treating the lung diseasesThe flow density determines the ablation effect according to P-I2R, when impedance is stable, the output radio frequency current is stable when constant power is ablated, and the ablation effect is good. Wherein I represents the current of the rf signal, P represents the power of the rf signal, and R represents the impedance information at the load end.
When the impedance is unstable (in some cases, it means that the saline is easy to flow away, for example, the ablated tumor is located on the airway wall), the fluctuation parameter is higher than the fluctuation threshold, the constant power control is difficult to ensure the stability of the radio frequency signal current, but instead, the constant power control has a slow response speed and is easy to form a very large (extremely small) current and voltage to bring a safety hazard, so the constant voltage mode or the constant current mode can be selected at this time.
Therefore, the factors such as ablation effect and safety in the constant power mode and other modes are fully considered, adaptive mode switching based on impedance is achieved, and the effects of ensuring ablation effect and safety are achieved.
Referring to fig. 5, in one embodiment, the process of determining whether the constant voltage mode or the constant current mode is the current power supply mode includes:
s501: whether the target impedance information is larger than a preset impedance threshold value;
the target impedance information is a statistical value (such as a mean value, a median, etc.) of the impedance information within the specified time length, or: impedance information at the present time;
if the determination result in step S501 is no, step S502 may be implemented: determining the constant current mode as the current power supply mode;
if the determination result in step S501 is yes, step S503 may be implemented: determining the constant voltage mode as the current power supply mode.
In a case where the impedance is unstable, i.e., a case where the saline may flow away when the tumor is located on the airway wall, the constant voltage or constant current mode is selected.
In one example, when the high impedance is unstable and changes, under the condition of selecting the constant voltage mode for use, when the radio frequency signal is output, the output voltage has the maximum value, according to U ═ IR, if select for use constant current output this moment, very little radio frequency current can lead to the voltage value transfinite, influences the effect of melting, brings the potential safety hazard. When the low impedance is unstable and changes, the output magnitude of the radio frequency current can be controlled under the condition of selecting the constant current mode, so that a good ablation effect is achieved. Wherein I represents the current of the rf signal, U represents the voltage of the rf signal, and R represents the impedance information of the load terminal.
Referring to fig. 6, an embodiment of the present invention further provides a control device 600 for a radio frequency ablation circuit, including:
an impedance obtaining module 601, configured to obtain impedance information of a load end of the radio frequency ablation circuit;
a current mode determination module 602, configured to determine a current power supply mode of the power supply unit based on the impedance information;
a mode indicating module 603, configured to instruct the power supply unit to output power to the radio frequency energy generating unit in the current power supply mode.
Optionally, the current determining module 602 is specifically configured to:
calculating fluctuation parameters of impedance information in a specified duration, wherein the fluctuation parameters represent the fluctuation degree of the impedance information in the specified duration;
responding to the fluctuation parameter lower than a preset fluctuation threshold value, and determining that the constant power mode is the current power supply mode;
if the fluctuation parameter is higher than the fluctuation threshold value, determining that the constant voltage mode or the constant current mode is the current power supply mode;
comparing the target impedance information with a preset impedance threshold; the target impedance information is a statistic value of the impedance information in the specified duration, or: impedance information at the present time;
if the target impedance information is smaller than the impedance threshold value, determining that the constant current mode is the current power supply mode;
and if the target impedance information is larger than the impedance threshold value, determining that the constant voltage mode is the current power supply mode.
Referring to fig. 7, an electronic device is provided, which includes:
a processor 71; and
a memory 72 for storing executable instructions of the processor;
wherein the processor 71 is configured to perform the above-mentioned method via execution of the executable instructions.
The processor 71 can communicate with the memory 72 via a bus 73.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the above-mentioned method.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The control method of the radio frequency ablation circuit is characterized in that the radio frequency ablation circuit comprises a power supply unit and a radio frequency energy generation unit connected with the power supply unit;
the control method comprises the following steps:
acquiring impedance information of a load end of the radio frequency ablation circuit;
determining a current power supply mode of the power supply unit based on the impedance information;
instructing the power supply unit to output power to the radio frequency energy generation unit in the current power supply mode.
2. The method of controlling an RF ablation circuit according to claim 1,
determining a current power supply mode of the power supply unit based on the impedance information, including:
calculating fluctuation parameters of impedance information in a specified duration, wherein the fluctuation parameters represent the fluctuation degree of the impedance information in the specified duration;
responding to the fluctuation parameter lower than a preset fluctuation threshold value, and determining that the constant power mode is the current power supply mode; the constant power mode refers to: the power supply unit maintains the output power of the power supply unit at a specified power or a specified power range.
3. The method of controlling an RF ablation circuit of claim 2,
determining a current power supply mode of the power supply unit based on the impedance information, including:
if the fluctuation parameter is higher than the fluctuation threshold value, determining that the constant voltage mode or the constant current mode is the current power supply mode; the constant voltage mode refers to: the power supply unit keeps the output voltage of the power supply unit at a specified voltage or a specified voltage range, and the constant current mode refers to: the power supply unit maintains an output current of the power supply unit at a specified current or a specified current range.
4. The method of controlling an RF ablation circuit according to claim 3,
determining whether the constant voltage mode or the constant current mode is the current power supply mode, including:
comparing the target impedance information with a preset impedance threshold; the target impedance information is a statistic value of the impedance information in the specified duration, or: impedance information at the present time;
if the target impedance information is smaller than the impedance threshold value, determining that the constant current mode is the current power supply mode;
and if the target impedance information is larger than the impedance threshold value, determining that the constant voltage mode is the current power supply mode.
5. The method for controlling the RF ablation circuit according to any one of claims 2 to 4,
calculating the fluctuation parameter of the impedance information in the specified time length, comprising:
and calculating the difference value between the maximum value and the minimum value of the impedance information in the specified time length, and taking the difference value as the fluctuation parameter.
6. The control method according to any one of claims 1 to 4,
acquiring impedance information of a load end of the radio frequency ablation circuit, including:
acquiring the electrical parameter of the load end detected by the detection unit; the electrical parameter comprises a voltage and/or a current;
based on the electrical parameter, the impedance information is calculated.
7. A control device for a radio frequency ablation circuit, comprising:
the impedance obtaining module is used for obtaining impedance information of a load end of the radio frequency ablation circuit;
a current mode determination module for determining a current power supply mode of the power supply unit based on the impedance information;
and the mode indicating module is used for indicating the power supply unit to output power to the radio frequency energy generating unit in the current power supply mode.
8. The radio frequency ablation equipment is characterized by comprising a radio frequency ablation circuit and a controller, wherein the radio frequency ablation circuit comprises a power supply unit and a radio frequency energy generation unit connected to the power supply unit;
the power supply unit is used for supplying power to the radio frequency energy generating unit under the control of the controller;
the controller is used for executing the control method of the radio frequency ablation circuit of any one of claims 1 to 6.
9. An electronic device, comprising a processor and a memory,
the memory is used for storing codes;
the processor is configured to execute the codes in the memory to implement the control method of any one of claims 1 to 6.
10. A storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of any one of claims 1 to 6.
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