CN115590602A - Radio frequency ablation system and method - Google Patents
Radio frequency ablation system and method Download PDFInfo
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- CN115590602A CN115590602A CN202110721637.XA CN202110721637A CN115590602A CN 115590602 A CN115590602 A CN 115590602A CN 202110721637 A CN202110721637 A CN 202110721637A CN 115590602 A CN115590602 A CN 115590602A
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Abstract
The application provides a radio frequency ablation system and a method, wherein the system comprises a display screen, a control module and a control module, wherein the display screen is used for responding to the control operation of a user for a human-computer interaction interface and generating a control instruction; the main control module is used for outputting a first output power signal according to the control instruction; controlling the switching circuit to be connected with the electrode needle according to the matched working mode according to the control instruction; the radio frequency power amplifier is used for amplifying the first output power signal and sending the amplified first output power signal to the switching circuit; the switching circuit is used for being connected with the electrode needle according to the matched working mode and supplying the amplified first output power signal to the electrode needle so that the electrode connected with the switching circuit in the electrode needle works based on the first output power signal; the application provides a multipolar a plurality of operating mode radiofrequency ablation system of single needle, treats to the regional different radio frequency power that treat of impedance numerical value, has improved treatment.
Description
Technical Field
The application relates to the technical field of radio frequency ablation, in particular to a radio frequency ablation system and a radio frequency ablation method.
Background
Radio frequency ablation therapy is a treatment method for directly killing tumors locally by using radio frequency current. When in treatment, the radio frequency electrode needle directly punctures tumor tissue through skin under the guidance of CT and ultrasound, the polar molecules of the tumor tissue generate high-speed oscillation by radio frequency electric wave emitted by the radio frequency electrode needle, and adjacent molecules rub and impact mutually to generate heat, so that the local temperature of a treatment area reaches 90-100 ℃ within a few minutes, and even exceeds 100 ℃. The tolerance of the tumor cells to heat is obviously lower than that of normal cells, and the tumor cells can be effectively and quickly removed at the temperature of more than 42 ℃ so as to generate heat coagulation necrosis. The radiofrequency ablation can solidify the blood vessels of the tumor tissue at the same time, which is favorable for preventing tumor metastasis.
The area of the soft tissue tumor requiring radiofrequency ablation is different in size according to the different disease conditions. When the area to be treated is large, the intensity of the radiofrequency ablation required for different areas is also different. For treatment areas requiring different radio frequency ablation intensities, the existing radio frequency ablation devices cannot perform effective treatment.
Disclosure of Invention
In view of this, an object of the present application is to provide a single-needle multi-pole multi-working mode rf ablation system and method, which are capable of performing treatment by using different rf powers for regions to be diagnosed with different impedance values, so as to improve the treatment effect.
In a first aspect, an embodiment of the present application provides a radio frequency ablation system, which includes a main control module, a radio frequency power amplifier, a switching circuit, an electrode needle, and a display screen; the radio frequency power amplifier, the switching circuit and the display screen are respectively electrically connected with the main control module, and the switching circuit is also electrically connected with the radio frequency power amplifier and the electrode needle; the display screen is used for providing a human-computer interaction interface;
the display screen is used for responding to the control operation of a user for the human-computer interaction interface, generating a control instruction and sending the control instruction to the main control module; the control instruction carries preset output power information and working mode information;
the main control module is used for outputting a first output power signal corresponding to the output power information according to the output power information carried by the control instruction, and sending the first output power signal to the radio frequency power amplifier; controlling the switching circuit to be connected with the electrode needle according to the matched working mode according to the working mode information carried by the control instruction; in different working modes, the number of the electrodes connected with the switching circuit is different;
the radio frequency power amplifier is used for amplifying the first output power signal and sending the amplified first output power signal to the switching circuit;
the switching circuit is used for being connected with the electrode needle according to a matched working mode and providing the amplified first output power signal to the electrode needle, so that an electrode connected with the switching circuit in the electrode needle works based on the first output power signal.
In a preferred embodiment of the present invention, the electrode needle includes two electrodes, namely a first electrode and a second electrode;
the working modes of the electrode needle comprise: a monopolar mode of operation, a bipolar mode of operation, and a hybrid mode of operation;
the unipolar working mode is that the first electrode or the second electrode works independently;
the bipolar operating mode is that the first electrode and the second electrode work cooperatively;
the hybrid operating mode is an alternation of the monopolar operating mode and the bipolar operating mode.
In a preferred embodiment of the present application, the electrode needle includes: a first electrode, a second electrode, a back plate; the first electrode, the second electrode and the back plate are all electrically connected, current can flow from the first electrode to the back plate, current can flow from the second electrode to the back plate, and current can flow between the first electrode and the second electrode.
In a preferred technical scheme of the present application, the main control module is further configured to record a working duration of the electrode needle;
the main control module is further configured to output a second output power signal corresponding to the working duration of the electrode needle according to the working duration of the electrode needle, and send the second output power signal to the radio frequency power amplifier;
the radio frequency power amplifier is further configured to amplify the second output power signal and send the amplified second output power signal to the switching circuit.
In a preferred embodiment of the present application, the above-mentioned main control module, when being configured to output a second output power signal corresponding to the working duration of the electrode needle according to the working duration of the electrode needle, includes:
when the working time of the electrode needle is longer than or equal to a preset time, the main control module increases the first output power signal and outputs the increased first output power signal; the increased first output power signal is used as the second output power signal.
In a preferred technical solution of the present application, the above main control module, when being configured to output a second output power signal corresponding to the operating duration of the electrode needle according to the operating duration of the electrode needle, includes:
and when the working time of the electrode needle is shorter than the preset time, the main control module takes the first output power signal as the second output power signal to continue outputting.
In a preferred embodiment of the present invention, the rf power amplifier includes an impedance detection module;
the radio frequency power amplifier is also used for detecting an impedance value of the electrode needle action area and sending the impedance value to the main control module;
the main control module is further configured to output a third output power signal corresponding to the impedance value according to the second output power signal and the received impedance value, and send the third output power signal to the radio frequency power amplifier;
the radio frequency power amplifier is further configured to amplify the third output power signal and send the amplified third output power signal to the switching circuit.
In a preferred technical solution of the present application, the system further includes a power module;
and the power supply module is used for providing electric energy for the main control module, the radio frequency power amplifier, the switching circuit, the electrode needle and the display screen.
In a second aspect, an embodiment of the present application provides a radio frequency ablation method, which is applied to a radio frequency ablation system, where the system includes a main control module, a radio frequency power amplifier, a switching circuit, an electrode needle, and a display screen; the radio frequency power amplifier, the switching circuit and the display screen are respectively electrically connected with the main control module, and the switching circuit is also electrically connected with the radio frequency power amplifier and the electrode needle; the display screen is used for providing a human-computer interaction interface; the method comprises the following steps:
the display screen responds to the control operation of a user for the human-computer interaction interface, generates a control instruction and sends the control instruction to the main control module; the control instruction carries preset output power information and working mode information;
the main control module outputs a first output power signal corresponding to the output power information according to the output power information carried by the control instruction, and sends the first output power signal to the radio frequency power amplifier; controlling the switching circuit to be connected with the electrode needle according to the matched working mode according to the working mode information carried by the control instruction; the number of the electrodes connected with the switching circuit is different in different working modes;
the radio frequency power amplifier amplifies the first output power signal and sends the amplified first output power signal to the switching circuit;
the switching circuit is connected with the electrode needle according to a matched working mode, and the amplified first output power signal is provided for the electrode needle, so that an electrode connected with the switching circuit in the electrode needle works based on the first output power signal.
In a preferred technical solution of the present application, the method further includes:
the main control module outputs a second output power signal corresponding to the working time of the electrode needle according to the working time of the electrode needle and sends the second output power signal to the radio frequency power amplifier;
and the radio frequency power amplifier amplifies the second output power signal and sends the amplified second output power signal to the switching circuit.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the radio frequency ablation system comprises a main control module, a radio frequency power amplifier, a switching circuit, an electrode needle and a display screen; the radio frequency power amplifier, the switching circuit and the display screen are respectively electrically connected with the main control module, and the switching circuit is also electrically connected with the radio frequency power amplifier and the electrode needle; the display screen is used for providing a human-computer interaction interface; the display screen is used for responding to the control operation of a user for the human-computer interaction interface, generating a control instruction and sending the control instruction to the main control module; the control instruction carries preset output power information and working mode information; the main control module is used for outputting a first output power signal corresponding to the output power information according to the output power information carried by the control instruction and sending the first output power signal to the radio frequency power amplifier; and controlling the switching circuit to be connected with the electrode needle according to the matched working mode according to the working mode information carried by the control instruction; the number of the electrodes connected with the switching circuit is different under different working modes; the radio frequency power amplifier is used for amplifying the first output power signal and sending the amplified first output power signal to the switching circuit; the switching circuit is used for being connected with the electrode needle according to the matched working mode and supplying the amplified first output power signal to the electrode needle so that the electrode connected with the switching circuit in the electrode needle works based on the first output power signal; the application provides a multipolar a plurality of operating mode radio frequency ablation system of single needle, treats to the regional different radio frequency power that adopt of waiting to diagnose of different impedance numerical values, has improved treatment.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic view of a radio frequency ablation system provided by an embodiment of the present application;
fig. 2 is a schematic flow chart of a radio frequency ablation method provided by an embodiment of the present application;
FIG. 3 shows a schematic diagram of a first electrode and a second electrode provided in an embodiment of the present application;
FIG. 4 shows a schematic diagram of a back plate provided by an embodiment of the present application;
fig. 5 is a schematic diagram of first output power signal adjustment according to an 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 only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In order to achieve ablation over a larger area with existing rf ablation methods, it is common to use "umbrella" monopolar instruments, "christmas tree" monopolar instruments, or multiple bipolar (one electrode each) instruments. The umbrella-shaped or Christmas tree-shaped monopolar device occupies a larger needle arrangement space in tissues, and a plurality of bipolar devices need a plurality of interventional wounds, so that the requirements of radio frequency ablation in narrow spaces cannot be well met. In addition, in the prior art, the electrodes are all manually set fixed radio frequency power, and the radio frequency power cannot be adjusted according to the specific conditions of the area to be diagnosed, so eschar is easily caused, and the treatment effect is poor.
Based on this, the present application provides a radio frequency ablation system and method. Some embodiments of the present application are described in detail below. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Fig. 1 illustrates an embodiment of the present application providing a radio frequency ablation system, which is described below by way of example.
The radio frequency ablation system comprises a main control module 3, a radio frequency power amplifier 4, a switching circuit 5, an electrode needle 6 and a display screen 1; the radio frequency power amplifier 4, the switching circuit 5 and the display screen 1 are respectively electrically connected with the main control module 3, and the switching circuit 5 is also electrically connected with the radio frequency power amplifier 4 and the electrode needle 6; the display screen 1 is used for providing a human-computer interaction interface;
the display screen 1 is used for responding to control operation of a user for a human-computer interaction interface, generating a control instruction and sending the control instruction to the main control module 3; the control instruction carries preset output power information and working mode information;
the main control module 3 is used for outputting a first output power signal corresponding to the output power information according to the output power information carried by the control instruction, and sending the first output power signal to the radio frequency power amplifier 4; according to the working mode information carried by the control instruction, the switching circuit 5 is controlled to be connected with the electrode needle 6 according to the matched working mode; wherein, in different working modes, the number of the electrodes of the switching circuit 5 connected with the electrode needle 6 is different;
the radio frequency power amplifier 4 is used for amplifying the first output power signal and sending the amplified first output power signal to the switching circuit 5;
and the switching circuit 5 is used for being connected with the electrode needle 6 according to the matched working mode and supplying the amplified first output power signal to the electrode needle 6, so that the electrode connected with the switching circuit 5 in the electrode needle 6 works based on the first output power signal.
In the embodiment of the present application, as an alternative embodiment, the electrode needle 6 includes two electrodes, namely a first electrode 7 and a second electrode 8;
the operation modes of the electrode needle 6 include: a monopolar mode of operation, a bipolar mode of operation, and a hybrid mode of operation;
the unipolar working mode is that the first electrode 7 or the second electrode 8 works independently;
the bipolar working mode is that the first electrode 7 and the second electrode 8 work together;
the hybrid operating mode is an alternation of a monopolar operating mode and a bipolar operating mode.
In the embodiment of the present application, as an alternative embodiment, as shown in fig. 3 and 4, the electrode needle 6 includes: a first electrode 7, a second electrode 8 and a back plate 9; the first electrode 7, the second electrode 8 and the back plate 9 are all electrically connected, current can flow from the first electrode 7 to the back plate 9, current can flow from the second electrode 8 to the back plate 9, and current can flow between the first electrode 7 and the second electrode 8.
In the embodiment of the present application, as an optional embodiment, the main control module 3 is further configured to record the working time of the electrode needle 6;
the main control module 3 is further configured to output a second output power signal corresponding to the working duration of the electrode needle 6 according to the working duration of the electrode needle 6, and send the second output power signal to the radio frequency power amplifier 4;
the radio frequency power amplifier 4 is further configured to amplify the second output power signal, and send the amplified second output power signal to the switching circuit 5.
In this embodiment, as an optional embodiment, when the main control module 3 is configured to output the second output power signal corresponding to the working duration of the electrode pin 6 according to the working duration of the electrode pin 6, the method includes:
when the working time of the electrode needle 6 is longer than or equal to the preset time, the main control module 3 increases the first output power signal and outputs the increased first output power signal; the boosted first output power signal is used as a second output power signal.
In this embodiment, as an optional embodiment, when the main control module 3 is configured to output the second output power signal corresponding to the working duration of the electrode pin 6 according to the working duration of the electrode pin 6, the method includes:
when the working time of the electrode needle 6 is shorter than the preset time, the main control module 3 takes the first output power signal as a second output power signal to continue outputting.
In this embodiment, as an optional embodiment, the radio frequency power amplifier 4 includes an impedance detection module;
the radio frequency power amplifier 4 is also used for detecting the impedance value of the action area of the electrode needle 6 and sending the impedance value to the main control module 3;
the main control module 3 is further configured to output a third output power signal corresponding to the impedance value according to the second output power signal and the received impedance value, and send the third output power signal to the radio frequency power amplifier 4;
and the radio frequency power amplifier 4 is further configured to amplify the third output power signal and send the amplified third output power signal to the switching circuit.
In this embodiment, as an optional embodiment, the system further includes a power module 2;
and the power supply module 2 is used for providing electric energy for the main control module 3, the radio frequency power amplifier 4, the switching circuit 5, the electrode needle 6 and the display screen 1.
In the embodiment of the present application, as an optional embodiment, a user observes the operating state of the system through the display screen 1, and inputs an operation instruction through the display screen 1, where the operation instruction includes first output power information for controlling the operating strength of the electrode needle 6 and operating mode information for controlling the operating state of the electrode needle 6.
The first output power is preset, and the magnitude of the first output power is determined according to the current application scenario, and can also be determined according to big data analysis.
The working mode is set according to the electrode needle 6. The electrode needle 6 in the present application includes: a first electrode 7, a second electrode 8 and a back plate 9; the first electrode 7, the second electrode 8 and the back plate 9 are all electrically connected, current can flow from the first electrode 7 to the back plate 9, current can flow from the second electrode 8 to the back plate 9, and current can flow between the first electrode 7 and the second electrode 8. According to the structure of the electrode needle 6 in the present application, the electrode needle 6 in the present application is provided with a monopolar operation mode, a bipolar operation mode and a hybrid operation mode; the unipolar working mode is that the first electrode 7 or the second electrode 8 works independently; the bipolar working mode is that the first electrode 7 and the second electrode 8 work together; the hybrid operating mode is an alternation of a monopolar operating mode and a bipolar operating mode. I.e. unipolar operation, current flows from the first electrode 7 to the backplate 9, or current flows from the second electrode 8 to the backplate 9; in bipolar mode of operation, current flows between the first electrode 7 and the second electrode 8; in the hybrid mode of operation, current flows alternately between the first electrode 7 and the back plate 9, between the second electrode 8 and the back plate 9, and between the first electrode 7 and the second electrode 8.
After a user selects the first output power and the initial working mode, the main control module 3 controls the switching circuit 5 to be connected with the electrode needle 6 according to the selected initial working mode, namely, when the working mode is a unipolar working mode, the switching circuit 5 is connected with the first electrode 7 and the back plate 9 or connected with the second electrode 8 and the back plate 9, and the electrode connected in the unipolar working mode can be determined according to the position of the specific action of the electrode needle 6 in specific implementation; in the bipolar mode of operation, the switching circuit 5 connects the first electrode 7 and the second electrode 8.
When the switching circuit 5 selects the working mode, the main control module 3 sends the first output power signal to the radio frequency power amplifier 4 according to the selected first output power information, the radio frequency power amplifier 4 amplifies the first output power signal, and sends the amplified first output power signal to the switching circuit 5.
The switching circuit 5 controls the electrode corresponding to the electrode needle 6 to act on the region to be diagnosed with the power corresponding to the first output power signal according to the received working mode and the amplified first output power signal.
In order to avoid the situation that the soft tissue generates eschar when the electrode needle 6 works in the area to be diagnosed with different impedance values with one power for a long time, the main control module 3 is also used for recording the working time of the electrode needle; the main control module 3 outputs a second output power signal corresponding to the working time of the electrode needle 6 according to the working time of the electrode needle; the radio frequency power amplifier 4 is also provided with an impedance detection module, and the impedance detection module is used for detecting the impedance value of the region to be diagnosed acted by the electrode needle 6; the main control module 3 outputs a third output power signal corresponding to the impedance value according to the second output power signal and the received impedance value.
As shown in fig. 5, when the working duration of the electrode needle 6 is greater than or equal to the preset duration, the main control module 3 raises the first output power signal, and takes the raised first output power signal as the second output power signal; then judging the relation between the received impedance value and a preset threshold value; when the impedance value is greater than or equal to the preset threshold, the main control module 3 reduces the second output power signal and outputs the reduced second output power signal; the reduced second output power signal is used as a third output power signal; when the impedance value is smaller than the preset threshold value, the main control module 3 boosts the second output power signal and outputs the boosted second output power signal; the boosted second output power signal is used as a third output power signal;
when the working time of the electrode needle 6 is shorter than the preset time, the main control module 3 takes the first output power signal as a second output power signal to continue outputting; then judging the relation between the received impedance value and a preset threshold value; when the impedance value is greater than or equal to the preset threshold value, the main control module 3 reduces the second output power signal and outputs the reduced second output power signal; the reduced second output power signal is used as a third output power signal; when the impedance value is smaller than the preset threshold value, the main control module 3 takes the second output power signal as a third output power signal to continue outputting;
the main control module 3 is further configured to record impedance detection times, where the impedance detection times include a first time when the impedance value is greater than or equal to a preset threshold and a second time when the impedance value is smaller than the preset threshold.
After the electrode needle 6 works for a preset time period with the third output power signal, the main control module 3 controls the working state of the electrode needle 6 according to the total working duration and the impedance detection times of the electrode needle 6. The total working time of the electrode needle 6 comprises the working time of the first output power signal, the working time of the second output power signal and the working time of the third output power signal of the electrode needle 6.
When the total working time of the electrode needle 6 is greater than or equal to the preset total time or the first time is greater than or equal to the preset time threshold, the main control module 3 closes the electrode needle 6;
and when the total working time of the electrode needle 6 is less than the preset total time and the first time is less than the preset time threshold, continuously detecting the impedance value.
In the application, in the monopolar mode of the electrode needle 6, the ablation area is two tissues which can be ablated by a single electrode; in the bipolar mode, the ablation region is the tissue between the two electrodes, and as the two modes are switched, the ablation regions in the two modes are overlapped to form a larger ablation region. The electrode needle 6 of the application adopts a single needle and double poles, and is different from a single needle and single pole or multiple needles and multiple poles of the traditional equipment, so that the aims of reducing wounds and forming a larger ablation area are fulfilled. The present application designs three output modes to address different tissue ablation needs: the single-pole mode ablates a small area, the double-pole mode ablates a medium area and the area is controllable, and the single-double mixed mode ablates a large area and the area is controllable. According to the method and the device, the output power is changed in real time according to the impedance value of the area to be diagnosed, so that the ablation effect is ensured, and eschar formation of tissues is also prevented.
Fig. 2 is a schematic flow chart of a radio frequency ablation method provided in the embodiment of the present application, wherein the method includes steps S101-S104; specifically, the method comprises the following steps:
a radio frequency ablation method is applied to a radio frequency ablation system, and the system comprises a main control module 3, a radio frequency power amplifier 4, a switching circuit 5, an electrode needle 6 and a display screen 1; the radio frequency power amplifier 4, the switching circuit 5 and the display screen 1 are respectively electrically connected with the main control module 3, and the switching circuit 5 is also electrically connected with the radio frequency power amplifier 4 and the electrode needle 6; the display screen 1 is used for providing a human-computer interaction interface; the method comprises the following steps:
s101, responding to control operation of a user for a human-computer interaction interface, generating a control instruction and sending the control instruction to a main control module 3 by a display screen 1; the control instruction carries preset output power information and working mode information;
s102, the main control module 3 outputs a first output power signal corresponding to the output power information according to the output power information carried by the control instruction, and sends the first output power signal to the radio frequency power amplifier 4; according to the working mode information carried by the control instruction, the switching circuit 5 is controlled to be connected with the electrode needle 6 according to the matched working mode; wherein, in different working modes, the number of the electrodes of the switching circuit 5 connected with the electrode needle 6 is different;
s103, the radio frequency power amplifier 4 amplifies the first output power signal and sends the amplified first output power signal to the switching circuit 5;
and S104, the switching circuit 5 is connected with the electrode needle 6 according to the matched working mode, and the amplified first output power signal is supplied to the electrode needle 6, so that the electrode connected with the switching circuit 5 in the electrode needle 6 works based on the first output power signal.
The method further comprises the following steps:
the main control module 3 outputs a second output power signal corresponding to the working duration of the electrode needle according to the working duration of the electrode needle 6, and sends the second output power signal to the radio frequency power amplifier;
the radio frequency power amplifier 4 amplifies the second output power signal and sends the amplified second output power signal to the switching circuit;
the radio frequency power amplifier 4 comprises an impedance detection module; the method further comprises the following steps:
the radio frequency power amplifier 4 detects the impedance value of the action area of the electrode needle 6 and sends the impedance value to the main control module 3;
the main control module 3 outputs a third output power signal corresponding to the impedance value according to the third output power signal and the received impedance value, and sends the third output power signal to the radio frequency power amplifier 4;
the radio frequency power amplifier 4 amplifies the third output power signal, and sends the amplified third output power signal to the switching circuit 5.
In the embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and there may be other divisions in actual implementation, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of systems or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used to illustrate the technical solutions of the present application, but not to limit the technical solutions, and the scope of the present application is not limited to the above-mentioned embodiments, although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the present disclosure, which should be construed in light of the above teachings. Are intended to be covered by the scope of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A radio frequency ablation system is characterized by comprising a main control module, a radio frequency power amplifier, a switching circuit, an electrode needle and a display screen; the radio frequency power amplifier, the switching circuit and the display screen are respectively electrically connected with the main control module, and the switching circuit is also electrically connected with the radio frequency power amplifier and the electrode needle; the display screen is used for providing a human-computer interaction interface;
the display screen is used for responding to the control operation of a user for the human-computer interaction interface, generating a control instruction and sending the control instruction to the main control module; the control instruction carries preset output power information and working mode information;
the main control module is used for outputting a first output power signal corresponding to the output power information according to the output power information carried by the control instruction, and sending the first output power signal to the radio frequency power amplifier; controlling the switching circuit to be connected with the electrode needle according to the matched working mode according to the working mode information carried by the control instruction; in different working modes, the number of the electrodes connected with the switching circuit is different;
the radio frequency power amplifier is used for amplifying the first output power signal and sending the amplified first output power signal to the switching circuit;
the switching circuit is used for being connected with the electrode needle according to a matched working mode and providing the amplified first output power signal to the electrode needle, so that an electrode connected with the switching circuit in the electrode needle works based on the first output power signal.
2. The system of claim 1, wherein the electrode needle comprises two electrodes, a first electrode and a second electrode;
the working modes of the electrode needle comprise: monopolar, bipolar and hybrid modes of operation;
the unipolar working mode is that the first electrode or the second electrode works alone;
the bipolar operating mode is that the first electrode and the second electrode work cooperatively;
the hybrid operating mode is an alternation of the monopolar operating mode and the bipolar operating mode.
3. The system of claim 1, wherein the electrode needle comprises: a first electrode, a second electrode, a back plate; the first electrode, the second electrode and the back plate are all electrically connected, current can flow from the first electrode to the back plate, current can flow from the second electrode to the back plate, and current can flow between the first electrode and the second electrode.
4. The system of claim 1, wherein the master control module is further configured to record an operating time of the electrode needle;
the main control module is further configured to output a second output power signal corresponding to the working duration of the electrode needle according to the working duration of the electrode needle, and send the second output power signal to the radio frequency power amplifier;
the radio frequency power amplifier is further configured to amplify the second output power signal and send the amplified second output power signal to the switching circuit.
5. The system according to claim 2, wherein the main control module, when being configured to output the second output power signal corresponding to the working duration of the electrode needle according to the working duration of the electrode needle, comprises:
when the working time of the electrode needle is longer than or equal to a preset time, the main control module increases the first output power signal and outputs the increased first output power signal; the increased first output power signal is used as the second output power signal.
6. The system according to claim 2, wherein the main control module, when being configured to output the second output power signal corresponding to the working duration of the electrode needle according to the working duration of the electrode needle, comprises:
and when the working time of the electrode needle is shorter than the preset time, the main control module takes the first output power signal as the second output power signal to continue outputting.
7. The system of claim 4, wherein the radio frequency power amplifier comprises an impedance detection module;
the radio frequency power amplifier is also used for detecting an impedance value of the electrode needle action area and sending the impedance value to the main control module;
the main control module is further configured to output a third output power signal corresponding to the impedance value according to the second output power signal and the received impedance value, and send the third output power signal to the radio frequency power amplifier;
the radio frequency power amplifier is further configured to amplify the third output power signal and send the amplified third output power signal to the switching circuit.
8. The system of claim 1, further comprising a power module;
and the power supply module is used for providing electric energy for the main control module, the radio frequency power amplifier, the switching circuit, the electrode needle and the display screen.
9. A radio frequency ablation method is characterized by being applied to a radio frequency ablation system, wherein the system comprises a main control module, a radio frequency power amplifier, a switching circuit, an electrode needle and a display screen; the radio frequency power amplifier, the switching circuit and the display screen are respectively electrically connected with the main control module, and the switching circuit is also electrically connected with the radio frequency power amplifier and the electrode needle; the display screen is used for providing a human-computer interaction interface; the method comprises the following steps:
the display screen responds to the control operation of a user for the human-computer interaction interface, generates a control instruction and sends the control instruction to the main control module; the control instruction carries preset output power information and working mode information;
the main control module outputs a first output power signal corresponding to the output power information according to the output power information carried by the control instruction, and sends the first output power signal to the radio frequency power amplifier; controlling the switching circuit to be connected with the electrode needle according to the matched working mode according to the working mode information carried by the control instruction; the number of the electrodes connected with the switching circuit is different in different working modes;
the radio frequency power amplifier amplifies the first output power signal and sends the amplified first output power signal to the switching circuit;
the switching circuit is connected with the electrode needle according to a matched working mode, and the amplified first output power signal is provided for the electrode needle, so that an electrode connected with the switching circuit in the electrode needle works based on the first output power signal.
10. The method of claim 9, further comprising;
the main control module outputs a second output power signal corresponding to the working time of the electrode needle according to the working time of the electrode needle and sends the second output power signal to the radio frequency power amplifier;
and the radio frequency power amplifier amplifies the second output power signal and sends the amplified second output power signal to the switching circuit.
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