Output control method and device for radiofrequency ablation power, and radiofrequency ablation system

Abstract

The present application provides a method and device for controlling the output of radiofrequency ablation power, and a radiofrequency ablation system. The method for controlling the output of radiofrequency ablation power includes: controlling a radiofrequency energy generator to output a preset ablation power when a start signal is received, recording the ablation time, and obtaining actual ablation parameters, where the actual ablation parameters include the actual impedance; when the actual impedance satisfies any one of a first preset condition and a second preset condition, controlling the radiofrequency energy generator to pause the output of the ablation power, recording the dormancy time, and pausing the recording of the ablation time; if the dormancy time exceeds a dormancy time threshold, controlling the radiofrequency energy generator to continue to output the ablation power again, and continuing to record the ablation time. The first preset condition is: R > K1 × Rmin1, and the second preset condition is: R > K2 × Rmin2. This method can make the impedance of the ablation site in an intermittently stable change state, ensure the continuous output of radiofrequency energy, and enable radiofrequency ablation to be carried out relatively uniformly in a cyclic manner.

Description

Technical Field

[0001] The present application relates to the field of medical technology, and in particular to a method and device for controlling the output of radio frequency ablation power, a radio frequency ablation system, and a computer-readable storage medium. Background Art

[0002] At present, radiofrequency ablation technology, as an emerging technology in the medical field, has been applied in the treatment of tumor diseases, neurological diseases, etc. The main mechanism of radiofrequency ablation is thermal effect. When radiofrequency current passes through the diseased tissue of the human body, the high-frequency current causes the positive and negative ions with charges in the diseased tissue to oscillate at high speed. The high-speed oscillating ions generate a large amount of heat due to friction, which increases the temperature in the diseased tissue, and eventually denatures the proteins in the diseased cells, loses water in the cells, and causes coagulative necrosis in the diseased tissue, thereby achieving the therapeutic purpose of ablating the diseased tissue.

[0003] During the ablation process, as the tissue around the ablation electrode gradually dries, the impedance of the tissue changes. If the temperature of the tissue around the ablation electrode is too high and rises too quickly, the tissue near the ablation electrode will be carbonized, causing a sharp increase in impedance and a "scab" phenomenon, which will cause the ablation to stop prematurely, affecting the effective range of ablation, making the ablation incomplete, and greatly affecting the effect of ablation treatment. In addition, excessively high ablation temperature and sharp changes in impedance are also not good for normal tissues around the ablation site.

[0004] Therefore, how to avoid rapid changes in impedance, excessive ablation temperature, ensure relatively uniform and continuous ablation, and avoid the "scab" phenomenon during the ablation process is a technical challenge for those skilled in the art. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a method and device for controlling the output of radio frequency ablation power, a radio frequency ablation system and a computer-readable storage medium.

[0006] The first aspect of the present application provides a method for controlling the output of radiofrequency ablation power. The method for controlling the output of radiofrequency ablation power comprises:

[0007] Setting ablation parameters according to an input signal in an initial state, wherein the set ablation parameters at least include a preset ablation power;

[0008] Upon receiving the start signal, an ablation instruction is issued to control the radio frequency energy generator to output the preset ablation power, and the ablation time is recorded and the actual ablation parameters of the ablation site are obtained in real time, wherein the actual ablation parameters at least include actual impedance;

[0009] Determining whether the actual impedance meets a preset condition;

[0010] If the actual impedance meets the preset condition, a sleep instruction is issued to control the radio frequency energy generator to suspend the output of ablation power, and the sleep time is recorded, and the ablation time is paused from being recorded;

[0011] If the sleep time exceeds the sleep time threshold, an ablation instruction is issued again to control the radio frequency energy generator to continue to output ablation power, and the ablation time is continuously recorded;

[0012] Wherein, the preset condition includes a first preset condition and a second preset condition. The first preset condition is: R > K1×Rmin1, and the second preset condition is: R > K2×Rmin2. Wherein, R is the actual impedance, K1 and K2 are proportionality coefficients, and K1 < K2. Rmin1 is the lowest impedance monitored during a preset time period within the period of recording the ablation time. The preset time period is the time period closest to the current moment and having a preset time length. Rmin2 is the lowest impedance monitored during the period of recording the ablation time;

[0013] Judging whether the actual impedance meets the preset condition includes: judging whether the actual impedance meets any one of the first preset condition and the second preset condition;

[0014] If the actual impedance meets any one of the first preset condition and the second preset condition, it is determined that the actual impedance meets the preset condition.

[0015] The second aspect of the present application provides an output control device for radio frequency ablation power. The output control device for radio frequency ablation power includes a memory and a processor. A computer program is stored in the memory. When the processor runs the computer program, it executes the steps of the output control method for radio frequency ablation power described in the first aspect above.

[0016] The third aspect of the present application provides a radio frequency ablation system. The radio frequency ablation system includes a radio frequency energy generator, an ablation device, and the output control device for radio frequency ablation power described in the second aspect above. The radio frequency energy generator is used to provide the radio frequency energy required for radio frequency ablation during the radio frequency ablation process. The ablation device is electrically connected to the radio frequency energy generator. The ablation device is used to be inserted into the ablation site during radio frequency ablation, receive the radio frequency energy output by the radio frequency energy generator, and release the radio frequency energy to the ablation site to perform radio frequency ablation on the ablation site. The output control device for radio frequency ablation power is electrically connected to the radio frequency energy generator. The output control device for radio frequency ablation power is used to control the radio frequency energy generator to output the radio frequency energy according to the set ablation parameters, the actual ablation parameters of the ablation site, and the input operation of the user.

[0017] The fourth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the output control method of the radiofrequency ablation power described in the first aspect above.

[0018] By simultaneously setting the first preset condition R > K1×Rmin1 and the second preset condition as R > K2×Rmin2, and setting the relationship between the coefficients K1 and K2 as: K1 < K2, in the output control method and device of the radiofrequency ablation power of the present application, when it is determined that the actual impedance satisfies any one of the first preset condition and the second preset condition, a sleep instruction is issued to control the radiofrequency energy generator to pause the output of the ablation power, which can not only make the impedance of the ablation site change intermittently and stably, but also avoid the ablation temperature being too high and the occurrence of crusting phenomenon. At the same time, it also ensures that the radiofrequency energy can be continuously output, so that the radiofrequency ablation is carried out in a cyclic and relatively uniform manner, and thus an ideal treatment effect can be obtained for the ablation surgery. Description of the Drawings

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a flowchart of an output control method of radiofrequency ablation power provided by an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the change of an impedance curve when only the first preset condition is set.

[0022] Figure 3 It is a schematic diagram of the change of an impedance curve and a power curve when only the second preset condition is set.

[0023] Figure 4 It is a flowchart of another output control method of radiofrequency ablation power provided by an embodiment of the present application.

[0024] Figure 5 It is a flowchart of another output control method of radiofrequency ablation power provided by an embodiment of the present application.

[0025] Figure 6 It is a schematic structural diagram of an output control device of radiofrequency ablation power provided by an embodiment of the present application.

[0026] Figure 7Schematic diagram of a radiofrequency ablation system provided by an embodiment of the present application.

[0027] Description of Main Component Symbols

[0028] Radiofrequency ablation system 1000

[0029] Output of radiofrequency ablation power

[0030] Control device (abbreviation: control 600

[0031] device)

[0032] Processor 61

[0033] Memory 62

[0034] Computer program 621

[0035] Input unit 63

[0036] Display unit 64

[0037] Alarm unit 65

[0038] Radiofrequency energy generator 700

[0039] Ablation device 800

[0040] Ablation parameter detection device 900

[0041] Steps 101 to 108, 11A, 12A to 12B, 13A, 14A to 14B, 15A to 15B, 401 to 408, 501 to 507

[0042] The following specific embodiments will further illustrate the present application in conjunction with the above drawings. Specific embodiments

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Among them, the drawings are only for illustrative purposes and represent only schematic diagrams, and should not be construed as limiting the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the art. The terms used in the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0045] Please refer toFigure 1 is a flowchart of a method for controlling the output of radiofrequency ablation power provided by an embodiment of the present application. The method for controlling the output of radiofrequency ablation power can be applied to a device for controlling the output of radiofrequency ablation power (hereinafter referred to as the control device), such as Figure 6 or Figure 7 the control device 600 shown. It should be noted that the method for controlling the output of radiofrequency ablation power described in the embodiments of the present application is not limited to Figure 1 the steps and order in the flowchart shown. According to different requirements, the steps in the flowchart shown can be added, removed, or the order can be changed. As Figure 1 shown, the method for controlling the output of radiofrequency ablation power includes the following steps.

[0046] Step 101, set ablation parameters according to the input signal in the initial state.

[0047] In this embodiment, the set ablation parameters at least include parameters such as a preset ablation power, an ablation time threshold, a temperature threshold, and an impedance threshold.

[0048] It can be understood that an input unit may be provided on the control device, such as a mechanical button, a mechanical knob, a touch button, or a touch display screen capable of displaying virtual buttons. The input unit can receive input operations from a user, such as a medical staff, to generate a corresponding input signal. For example, before the operation, the doctor can set parameters such as the preset ablation power, the ablation time threshold, the temperature threshold, and the impedance threshold according to factors such as the size of the ablation site area.

[0049] Step 102, when a start signal is received, send an ablation instruction to control the radiofrequency energy generator to output the preset ablation power, record the ablation time, and obtain the actual ablation parameters of the ablation site in real time.

[0050] It can be understood that in the initial state, the radiofrequency output voltage of the radiofrequency energy generator is adjusted to the minimum, and the radiofrequency energy output is turned off.

[0051] In this embodiment, the actual ablation parameters at least include an actual impedance, an actual ablation power, and an actual ablation temperature.

[0052] The input unit may further include a start button, a pause button, and a stop button. Among them, the start button generates a start signal when a pressing operation is received, the pause button generates a pause signal when a pressing operation is received, and the stop button generates a stop signal when a pressing operation is received. It can be understood that the start button and the pause button can also be the same button, and when a pressing operation is received, the start signal and the pause signal are alternately generated.

[0053] In one embodiment, for example Figure 7 As shown, the control device 600 can be electrically connected to a radio frequency energy generator 700. Wherein, the radio frequency energy generator 700 is used to generate a radio frequency signal with a set power during radiofrequency ablation to provide the radio frequency energy required for radiofrequency ablation. The control device 600 can control the radio frequency energy generator 700 to output the radio frequency energy according to the set ablation parameters, the actual ablation parameters of the ablation site, and the user's operation on the input unit.

[0054] The radio frequency energy generator 700 can also be electrically connected to an ablation device 800 (such as an ablation electrode). The ablation device 800 is inserted into the ablation site during radiofrequency ablation, receives the radio frequency energy output by the radio frequency energy generator 700, and releases the radio frequency energy to the ablation site to perform radiofrequency ablation on the ablation site, so as to achieve the purpose of treating diseased tissues. Wherein, the ablation site refers to a diseased site in a living body, such as diseased tissues of the heart or other diseased tissues. Taking hypertrophic cardiomyopathy as an example, the ablation device 800 is inserted into the patient's heart through the apical approach to perform radiofrequency ablation on the hypertrophic interventricular septum myocardium to treat hypertrophic cardiomyopathy.

[0055] It can be understood that the radio frequency energy generator 700 is also electrically connected to a reference electrode plate. The reference electrode plate is attached to a suitable position on the patient's body during ablation. The electrode in the ablation device 800 forms a radio frequency circuit with the reference electrode plate through the human body. The high-frequency current acts on the human tissue between the two, causing the tissue at the lesion site contacted by the electrode in the ablation device 800 to coagulate, denature, and necrose.

[0056] The control device 600 can also be electrically connected to an ablation parameter detection device 900. The ablation parameter detection device 900 is used to monitor the actual ablation parameters of the ablation site in real time.

[0057] In this embodiment, the ablation parameter detection device 900 can include an impedance detection module. The impedance detection module is used to detect the actual impedance of the ablation site during ablation and transmit the detected actual impedance information to the control device 600. Specifically, the impedance detection module can be electrically connected to the radio frequency circuit to collect the impedance information of the radio frequency circuit to obtain the actual impedance of the ablation site.

[0058] In this embodiment, the ablation parameter detection device 900 may further include a temperature detection module, such as a thermocouple or a thermistor. The temperature detection module may be disposed on the ablation device 800 and inserted into the ablation site together with the ablation device 800 during ablation, for detecting the actual ablation temperature of the ablation site and transmitting the detected actual ablation temperature information to the control device 600.

[0059] In this embodiment, the ablation parameter detection device 900 may further include a voltage detection module and a current detection module. Among them, the voltage detection module may be connected in parallel to the radio frequency circuit for detecting the ablation voltage in the radio frequency circuit. The current detection module may be connected in series to the radio frequency circuit for detecting the ablation current in the radio frequency circuit. It can be understood that in this embodiment, the actual ablation power can be calculated from the detected ablation voltage and ablation current.

[0060] Step 103, determine whether the recorded ablation time is greater than the ablation time threshold.

[0061] If the recorded ablation time is not greater than the ablation time threshold, then execute step 104. Otherwise, if the recorded ablation time is greater than the ablation time threshold, then execute step 108.

[0062] Step 104, determine whether the actual impedance meets the preset conditions.

[0063] If the actual impedance meets the preset conditions, then execute step 105. Otherwise, if the actual impedance does not meet the preset conditions, then return to step 103 and continue to monitor whether the recorded ablation time is greater than the ablation time threshold.

[0064] In this embodiment, the preset conditions include a first preset condition and a second preset condition. The first preset condition is: R > K1 × Rmin1, and the second preset condition is: R > K2 × Rmin2, where R is the actual impedance; K1, K2 are proportionality coefficients; Rmin1 is the lowest impedance monitored during a preset time period within the period of recording the ablation time, where the preset time period is the time period closest to the current moment and having a preset time length; Rmin2 is the lowest impedance monitored during the period of recording the ablation time.

[0065] That is to say, the preset time period is a time period within the ablation period before the current moment and has a preset time length. Rmin2 is the lowest impedance monitored during the ablation period from the ablation start moment to the current moment, or it can be understood that Rmin2 is the lowest impedance during the entire ablation process from the start to the current moment.

[0066] In some embodiments, the value range of the preset time length can be 15 s to 25 s.

[0067] For example, assume that the preset time length is 20 s. Starting from the moment when ablation begins, if the currently recorded ablation time is 10 s, then both Rmin1 and Rmin2 are the lowest impedances monitored within 0 to 10 s. If the currently recorded ablation time is 35 s, then Rmin1 is the lowest impedance monitored within 15 to 35 s, and Rmin2 is the lowest impedance monitored within 0 to 35 s. It should be noted that the ablation period in this embodiment does not include the period when the radio frequency energy generator pauses to output ablation power.

[0068] In this embodiment, the relationship between the coefficients K1 and K2 is: K1 < K2.

[0069] In some embodiments, the value range of K1 is 140% to 160%; the value range of K2 is 180% to 220%.

[0070] In this embodiment, step 104 specifically includes: determining whether the actual impedance satisfies any one of the first preset condition and the second preset condition.

[0071] In this embodiment, if the actual impedance satisfies any one of the first preset condition and the second preset condition, that is, the actual impedance satisfies the first preset condition, or the actual impedance satisfies the first preset condition, or the actual impedance simultaneously satisfies the first preset condition and the second preset condition, then it is determined that the actual impedance satisfies the preset condition.

[0072] Step 105, issue a sleep command to control the radio frequency energy generator to pause outputting ablation power, and record the sleep time and pause recording the ablation time.

[0073] In this embodiment, the actual ablation parameter further includes the actual ablation power. Step 105 further includes: when issuing the sleep command, recording the actual ablation power at the current moment.

[0074] Step 106, determine whether the sleep time exceeds the sleep time threshold.

[0075] If the sleep time exceeds the sleep time threshold, then execute step 107. Otherwise, if the sleep time does not exceed the sleep time threshold, then continue to execute step 106 to monitor whether the sleep time exceeds the sleep time threshold.

[0076] In this application, no specific limitation is imposed on the dormancy time threshold. It can be understood that a doctor can preset a reasonable threshold according to actual surgical experience. For example, the dormancy time threshold can be set to 15 s.

[0077] Step 107: Send an ablation instruction again to control the radio frequency energy generator to continue outputting ablation power, and continue to record the ablation time. The dormancy time is cleared to zero.

[0078] In this embodiment, "sending an ablation instruction again to control the radio frequency energy generator to continue outputting ablation power" in step 107 specifically includes: sending an ablation instruction again to control the radio frequency energy generator to continue outputting the actual ablation power recorded when the dormancy instruction was sent.

[0079] After step 107, the process returns to step 103 to continue monitoring whether the recorded ablation time is greater than the ablation time threshold.

[0080] Step 108: Send an end ablation instruction to control the radio frequency energy generator to stop outputting ablation power and end the ablation.

[0081] By setting the first preset condition R > K1 × Rmin1 in this application, the impedance of the ablation site can be kept in a relatively stable changing state during the ablation process.

[0082] However, in the case of only setting the first preset condition, if the impedance of the ablation site rises slowly, as Figure 2 shown, when the slope of the impedance curve is always less than the coefficient K1, the actual impedance R is always less than K1 × Rmin1, that is, the actual impedance does not meet the first preset condition. Therefore, the actual impedance can continue to rise slowly, and the ablation continues without interruption, and the ablation temperature will continue to rise. When the actual impedance rises to a certain level and the ablation temperature rises to a certain level, a "scabbing" phenomenon will occur at the ablation site, and even the normal tissue will be affected. If an impedance threshold is preset to avoid the "scabbing" phenomenon, the ablation will stop in advance when the actual impedance reaches the preset impedance threshold. These situations will all lead to an unsatisfactory ablation surgical effect, which is not the effect of the expected impedance control mode.

[0083] By setting the second preset condition R > K2×Rmin2 in this application, it can ensure that the actual impedance cannot rise too high during the entire ablation process, thereby avoiding the "scab formation" phenomenon. When performing radiofrequency ablation on the hypertrophic ventricular septal myocardium to treat hypertrophic cardiomyopathy, once "scab formation" occurs, on the one hand, the diseased tissue at the scabbed part is carbonized, which has a certain hindrance to heat conduction and affects the ablation of the diseased tissue around the "scab", resulting in incomplete ablation. Moreover, the carbonized tissue is less likely to be absorbed. On the other hand, the "scab" wraps the distal end of the electrode in the ablation device 800, which will hinder the withdrawal of the electrode. Therefore, when treating hypertrophic cardiomyopathy through radiofrequency ablation, it is particularly necessary to avoid the "scab formation" phenomenon.

[0084] However, when only setting the second preset condition, if the coefficient K2 is set too large, it cannot ensure the stability of impedance change. If the coefficient K2 is set too small, although the stability of impedance change can be ensured, as Figure 3 shown, after the actual impedance is greater than K2×Rmin2, which causes the radiofrequency energy generator to enter the sleep state and suspend the output of ablation power, if the actual impedance still remains at a high level, the radiofrequency energy generator still cannot output ablation power, resulting in the inability to perform ablation again. Thus, the radiofrequency energy generator keeps sleeping and there is no power output all the time, and the ablation is interrupted, resulting in incomplete ablation.

[0085] The output control method of the radiofrequency ablation power in this application simultaneously sets the first preset condition R > K1×Rmin1 and the second preset condition as R > K2×Rmin2, and sets the relationship between the coefficients K1 and K2 as: K1 < K2. When it is determined that the actual impedance satisfies any one of the first preset condition and the second preset condition, a sleep command is issued to control the radiofrequency energy generator to suspend the output of ablation power. This can not only make the impedance at the ablation site change intermittently and stably, but also avoid too high ablation temperature and the "scab formation" phenomenon. At the same time, it also ensures the continuous output of radiofrequency energy, enabling the radiofrequency ablation to be carried out in a cyclic and relatively uniform manner, and thus enabling the ablation surgery to obtain a more ideal treatment effect, especially suitable for the treatment of hypertrophic cardiomyopathy.

[0086] In some embodiments, the output control method of the radiofrequency ablation power further includes the following steps.

[0087] Step 11A, when receiving a power adjustment signal, control the radiofrequency energy generator to output the corresponding ablation power according to the power adjustment signal.

[0088] It can be understood that the control device may further include a display unit for displaying the set ablation parameters, the recorded ablation time, the actual ablation parameters of the ablation site, the recorded dormancy time, etc., so as to display the real-time ablation status. In this way, the doctor can understand the situation of the ablation operation by observing the various data displayed on the display unit, and adjust the output of the radio frequency power by operating the input unit.

[0089] For example, during the operation, the doctor can operate the input unit at any time according to the data displayed on the display unit, so that the input unit generates a corresponding power adjustment signal to adjust the ablation power output by the radio frequency energy generator, so that the temperature and impedance of the ablation site are within a preset range, and the ablation device performs radio frequency ablation on the diseased tissue at a preset temperature based on the set ablation power.

[0090] In some embodiments, the method for controlling the output of the radio frequency ablation power further includes the following steps.

[0091] Step 12A, when a pause signal is received, issue a pause ablation instruction to control the radio frequency energy generator to pause the output of the ablation power, and pause recording the ablation time.

[0092] Step 12B, when a start signal is received again, issue an ablation instruction again to control the radio frequency energy generator to continue to output the ablation power, and continue to record the ablation time.

[0093] It can be understood that during the operation, the doctor can operate the input unit at any time according to the actual situation, so that the input unit generates the pause signal and the start signal.

[0094] In this embodiment, step 12A further includes:

[0095] When issuing the pause ablation instruction, record the actual ablation power at the current moment.

[0096] Correspondingly, "issue an ablation instruction again to control the radio frequency energy generator to continue to output the ablation power" in step 12B specifically includes:

[0097] Issue an ablation instruction again to control the radio frequency energy generator to continue to output the actual ablation power recorded when the pause ablation instruction was issued.

[0098] In some embodiments, the method for controlling the output of the radio frequency ablation power further includes the following steps.

[0099] Step 13A, when a stop signal is received, issue an end ablation instruction to control the radio frequency energy generator 700 to stop outputting the ablation power and end the ablation.

[0100] It is understandable that during the operation, the doctor can operate the input unit at any time according to the actual situation to make the input unit generate the stop signal. For example, when the predetermined ablation effect is achieved, the doctor can stop the ablation operation in advance, that is, turn off the output power of the radio frequency energy generator to make the ablation device stop ablation work.

[0101] It is understandable that since the "power adjustment signal" in step 11A, the "pause signal" in step 12A, the "start signal" in step 12B, and the "stop signal" in step 13A are all signals triggered by manually operating the input unit, therefore, steps 11A, 12A, 12B, and 13A can all be executed at any time after step 102 and before step 108.

[0102] In some embodiments, the set ablation parameters further include an impedance threshold. The output control method of the radio frequency ablation power further includes the following steps.

[0103] Step 14A, determine whether the actual impedance exceeds the impedance threshold.

[0104] Step 14B, if the actual impedance exceeds the impedance threshold, issue a stop ablation instruction to control the radio frequency energy generator to stop outputting ablation power.

[0105] In the present application, no specific limitation is imposed on the impedance threshold. It is understandable that the doctor can set a reasonable threshold according to actual surgical experience.

[0106] After step 14B, the process returns to step 101, returning to the initial state.

[0107] It is understandable that the preset impedance threshold is generally set relatively high within the safety threshold range, both to avoid the "scabbing" phenomenon and to ensure that the radio frequency energy can be continuously output.

[0108] In some embodiments, the set ablation parameters further include a temperature threshold, and the actual ablation parameters further include the actual ablation temperature. The output control method of the radio frequency ablation power further includes the following steps.

[0109] Step 15A, determine whether the actual ablation temperature exceeds the temperature threshold.

[0110] Step 15B, if the actual ablation temperature exceeds the temperature threshold, issue a stop ablation instruction to control the radio frequency energy generator to stop outputting ablation power.

[0111] In the present application, no specific limitation is imposed on the temperature threshold. It can be understood that a doctor can set a reasonable threshold according to actual surgical experience.

[0112] After step 15B, the process returns to step 101, returning to the initial state.

[0113] It can be understood that the control device may further include an alarm unit. After step 14B or step 15B, the method for controlling the output of the radiofrequency ablation power may further include the step of issuing an alarm instruction to control the alarm unit to issue an alarm prompt to indicate an abnormality.

[0114] Wherein, the alarm unit may be an indicator light or a buzzer. The indicator light can indicate an abnormality by emitting light, or the buzzer can indicate an abnormality by emitting a sound.

[0115] It can be understood that during the ablation process, the actual impedance may exceed the impedance threshold at any time, and similarly, the actual ablation temperature may exceed the temperature threshold at any time. Therefore, steps 14A, 14B, 15A, and 15B can all be executed at any time after step 102 and before step 108.

[0116] Please refer to Figure 4 , which is a flowchart of another method for controlling the output of radiofrequency ablation power provided by an embodiment of the present application. The method for controlling the output of radiofrequency ablation power includes the following steps.

[0117] Step 401, set ablation parameters according to an input signal in an initial state.

[0118] Step 402, when a start signal is received, issue an ablation instruction to control a radiofrequency energy generator to output a preset ablation power, record the ablation time, and obtain the actual ablation parameters of the ablation site in real time.

[0119] Step 403, determine whether the recorded ablation time is greater than the ablation time threshold.

[0120] If the recorded ablation time is not greater than the ablation time threshold, then execute step 404. Otherwise, if the recorded ablation time is greater than the ablation time threshold, then execute step 408.

[0121] Step 404, determine whether a control signal is received. If a power adjustment signal is received, then execute step 405; if a pause signal is received, then execute step 406; if a stop signal is received, then execute step 408; if no control signal is received, then return to step 403 to continue monitoring whether the recorded ablation time is greater than the ablation time threshold.

[0122] Step 405: Control the radio frequency energy generator to output corresponding ablation power according to the power adjustment signal.

[0123] After the step 405, the process returns to step 403 to continue monitoring whether the recorded ablation time is greater than the ablation time threshold.

[0124] Step 406: Send a pause ablation instruction to control the radio frequency energy generator to pause outputting ablation power and pause recording the ablation time.

[0125] Step 407: When receiving a start signal again, send an ablation instruction again to control the radio frequency energy generator to continue outputting ablation power and continue recording the ablation time.

[0126] After the step 407, the process returns to step 403 to continue monitoring whether the recorded ablation time is greater than the ablation time threshold.

[0127] Step 408: Send an end ablation instruction to control the radio frequency energy generator to stop outputting ablation power and end the ablation.

[0128] Among them, for the specific technical details of steps 401 - 408 in this embodiment, reference can be made to the relevant technical details of steps 101 - 103, 108 in the embodiment shown as follows Figure 1 and steps 11A, 12A, 12B, 13A above, which will not be elaborated here.

[0129] In this application, by monitoring the input control signal during ablation and performing corresponding control according to the received control signal, it is convenient for the doctor to control the ablation power output by the radio frequency energy generator at any time according to the ablation operation situation during the operation, so that the temperature and impedance of the ablation site can be within the preset range, and the ablation device can perform radio frequency ablation on the diseased tissue at a preset temperature based on the set ablation power, effectively avoiding the "scabbing" phenomenon.

[0130] Please refer to Figure 5 , which is a flowchart of another method for controlling the output of radio frequency ablation power provided by the embodiment of this application. The method for controlling the output of radio frequency ablation power includes the following steps.

[0131] Step 501: Set ablation parameters according to the input signal in the initial state.

[0132] Step 502: When receiving a start signal, send an ablation instruction to control the radio frequency energy generator to output preset ablation power, record the ablation time, and obtain the actual ablation parameters of the ablation site in real time.

[0133] Step 503: Determine whether the recorded ablation time is greater than the ablation time threshold.

[0134] If the recorded ablation time is not greater than the ablation time threshold, then execute Step 504. Otherwise, if the recorded ablation time is greater than the ablation time threshold, then execute Step 507.

[0135] Step 504: Determine whether the actual ablation temperature exceeds the temperature threshold.

[0136] If the actual ablation temperature does not exceed the temperature threshold, then execute Step 505. Otherwise, if the actual ablation temperature exceeds the temperature threshold, then execute Step 506.

[0137] Step 505: Determine whether the actual impedance exceeds the impedance threshold.

[0138] If the actual impedance exceeds the impedance threshold, then execute Step 506. Otherwise, if the actual impedance does not exceed the impedance threshold, then return to Step 503 and continue to monitor whether the recorded ablation time is greater than the ablation time threshold.

[0139] It can be understood that the execution order of Step 504 and Step 505 can be changed.

[0140] Step 506: Issue a stop ablation instruction to control the radio frequency energy generator to stop outputting ablation power, and the process returns to Step 501.

[0141] Step 507: Issue an end ablation instruction to control the radio frequency energy generator to stop outputting ablation power and end the ablation.

[0142] Among them, for the specific technical details of Steps 501 - 507 of this embodiment, reference can be made to the relevant technical details of Steps 101 - 103, 108 of the embodiment shown in Figure 1 and Steps 14A, 14B, 15A, 15B above, which will not be elaborated here.

[0143] This application monitors the actual ablation temperature and the actual impedance during the ablation process, and when the actual ablation temperature exceeds the temperature threshold or the actual impedance exceeds the impedance threshold, it timely controls the radio frequency energy generator to stop outputting ablation power, thereby effectively avoiding the "scabbing" phenomenon.

[0144] Please refer to Figure 6 , which is a schematic structural diagram of an output control device (abbreviation: control device) 600 for radio frequency ablation power provided by an embodiment of this application. Among them, the control device 600 can be applied to a radio frequency ablation system.

[0145] Please refer toFigure 7 FIG. Figure 7 is a schematic structural diagram of a radiofrequency ablation system 1000 provided by an embodiment of the present application. The radiofrequency ablation system 1000 includes a control device 600, a radiofrequency energy generator 700, an ablation device 800, and an ablation parameter detection device 900.

[0146] The control device 600 is electrically connected to the radiofrequency energy generator 700. The radiofrequency energy generator 700 is configured to generate a radiofrequency signal with a set power during radiofrequency ablation to provide the radiofrequency energy required for radiofrequency ablation. The control device 600 can control the radiofrequency energy generator 700 to output the radiofrequency energy according to the set ablation parameters, the actual ablation parameters of the ablation site, and the user's input operation.

[0147] In this embodiment, the control device 600 and the radiofrequency energy generator 700 can be two independent devices, or can be arranged in the same device, that is, this device is used as an output control device for a radiofrequency energy generator and radiofrequency ablation power.

[0148] The radiofrequency energy generator 700 is also electrically connected to the ablation device 800 (such as an ablation electrode). The ablation device 800 is inserted into the ablation site during radiofrequency ablation, receives the radiofrequency energy output by the radiofrequency energy generator 700, and releases the radiofrequency energy to the ablation site to perform radiofrequency ablation on the ablation site, so as to achieve the purpose of treating diseased tissues. Wherein, the ablation site refers to a diseased site in a living body, such as diseased tissues of the heart or other diseased tissues.

[0149] In this embodiment, the radiofrequency energy generator 700 is also electrically connected to a reference electrode plate (not shown in the figure). The reference electrode plate is attached to a suitable position on the patient's body during ablation. The electrode in the ablation device 800 forms a radiofrequency circuit with the reference electrode plate through the human body. The high-frequency current acts on the human tissue between the two, causing the tissue at the lesion site contacted by the electrode in the ablation device 800 to coagulate, denature, and necrosis.

[0150] The control device 600 is also electrically connected to the ablation parameter detection device 900. The ablation parameter detection device 900 is configured to monitor the actual ablation parameters of the ablation site in real time.

[0151] In this embodiment, the ablation parameter detection device 900 may include an impedance detection module, a temperature detection module, a voltage detection module, a current detection module, etc.

[0152] Among them, the impedance detection module is used to detect the actual impedance of the ablation site during the ablation process and transmit the detected actual impedance information to the control device 600. Specifically, the impedance detection module can be electrically connected to the radio frequency circuit to collect the impedance information of the radio frequency circuit to obtain the actual impedance of the ablation site.

[0153] The temperature detection module can be a thermocouple or a thermistor, etc. The temperature detection module can be disposed on the ablation device 800 and inserted into the ablation site together with the ablation device 800 during the ablation process, for detecting the actual ablation temperature of the ablation site and transmitting the detected actual ablation temperature information to the control device 600.

[0154] The voltage detection module can be connected in parallel to the radio frequency circuit for detecting the ablation voltage in the radio frequency circuit. The current detection module can be connected in series to the radio frequency circuit for detecting the ablation current in the radio frequency circuit. It can be understood that in this embodiment, the actual ablation power can be calculated from the detected ablation voltage and ablation current.

[0155] Please refer to again Figure 6 , the control device 600 at least includes a processor 61, a memory 62, an input unit 63, and a display unit 64. Those skilled in the art can understand that the schematic Figure 6 is only an example of the control device 600 for implementing the output control method of the radio frequency ablation power in this application, and does not constitute a limitation on the control device 600. It may include more or fewer components than those shown, or combine certain components, or different components. For example, the control device 600 may further include a network access device, etc.

[0156] The input unit 63 may include, but is not limited to, mechanical buttons, mechanical knobs, touch buttons, or a touch display screen that can display virtual buttons, etc. The input unit 63 can receive input operations from a user, such as medical staff, to generate corresponding input signals. For example, before the operation, the doctor can set parameters such as ablation power, ablation time threshold, temperature threshold, impedance threshold, etc. according to factors such as the size of the ablation site area.

[0157] The input unit 63 may further include a start button, a pause button, and a stop button. Among them, the start button generates a start signal when a pressing operation is received, the pause button generates a pause signal when a pressing operation is received, and the stop button generates a stop signal when a pressing operation is received. It can be understood that the start button and the pause button can also be the same button, and when a pressing operation is received, the start signal and the pause signal are alternately generated.

[0158] For example, before the operation, the doctor can start the ablation operation by pressing the start button. During the operation, the doctor can operate the input unit 63 at any time according to the ablation operation conditions to control the ablation power output by the radio frequency energy generator 700, so that the temperature and impedance of the ablation site can be within a preset range, and the ablation device 800 can perform radio frequency ablation on the diseased tissue at a preset temperature based on the set ablation power, effectively avoiding the "scabbing" phenomenon.

[0159] The memory 62 may include a high-speed random access memory, and may also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0160] A computer program 621 is stored in the memory 62. The computer program 621 can be divided into one or more modules / units, which are stored in the memory 62 and executed by the processor 61 to complete the output control method of the radio frequency ablation power of the present application. The one or more modules / units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 621 in the control device 600.

[0161] The processor 61 may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor 61 is the control center of the control device 600, and connects all parts of the entire control device 600 through various interfaces and lines. The processor 61 realizes various functions of the control device 600 by running or executing the computer program 621 and / or modules / units stored in the memory 62, and calling the data stored in the memory 62.

[0162] In this embodiment, when the processor 61 executes the computer program 621, it implements the steps in the above embodiments of the output control method for each radiofrequency ablation power. For example, Figure 1 the steps 101 to 108 shown in Figure 4 the steps 401 to 408 shown in, or Figure 5 the steps 501 to 507 shown in

[0163] Specifically, the processor 61 is configured to run the computer program 621 stored in the memory 62 to execute the following steps:

[0164] Set ablation parameters according to the input signal in the initial state, where the set ablation parameters at least include a preset ablation power;

[0165] When a start signal is received, send an ablation instruction to control the radiofrequency energy generator to output the preset ablation power, record the ablation time, and obtain the actual ablation parameters of the ablation site in real time, where the actual ablation parameters at least include the actual impedance;

[0166] Judge whether the actual impedance meets the preset conditions;

[0167] If the actual impedance meets the preset conditions, send a sleep instruction to control the radiofrequency energy generator to pause outputting the ablation power, record the sleep time, and pause recording the ablation time;

[0168] If the sleep time exceeds the sleep time threshold, send an ablation instruction again to control the radiofrequency energy generator to continue outputting the ablation power, and continue to record the ablation time.

[0169] In this embodiment, the preset conditions include a first preset condition and a second preset condition. The first preset condition is: R > K1 × Rmin1, and the second preset condition is: R > K2 × Rmin2, where R is the actual impedance, K1 and K2 are proportionality coefficients, Rmin1 is the lowest impedance monitored in a preset time period during the period of recording the ablation time, the preset time period is the time period closest to the current moment and having a preset time length, and Rmin2 is the lowest impedance monitored during the period of recording the ablation time.

[0170] In some embodiments, the value range of the preset time length can be 15s to 25s.

[0171] In this embodiment, the relationship between the coefficients K1 and K2 is: K1 < K2.

[0172] In some embodiments, the value range of K1 is 140% to 160%; the value range of K2 is 180% to 220%.

[0173] In this embodiment, when the processor 61 executes "judging whether the actual impedance meets a preset condition", it is specifically configured to execute the following steps:

[0174] Judge whether the actual impedance meets any one of the first preset condition and the second preset condition.

[0175] In this embodiment, if the actual impedance meets any one of the first preset condition and the second preset condition, that is, the actual impedance meets the first preset condition, or the actual impedance meets the first preset condition, or the actual impedance simultaneously meets the first preset condition and the second preset condition, it is determined that the actual impedance meets the preset condition.

[0176] By simultaneously setting the first preset condition R>K1×Rmin1 and the second preset condition as R>K2×Rmin2, and setting the relationship between the coefficients K1 and K2 as: K1<K2, the output control device of the radiofrequency ablation power of the present application issues a sleep instruction to control the radiofrequency energy generator to pause the output of ablation power when it is judged that the actual impedance meets any one of the first preset condition and the second preset condition. This can not only make the impedance of the ablation site in an intermittent and stable change state, but also avoid the ablation temperature being too high and the occurrence of scabbing phenomenon. At the same time, it also ensures that the radiofrequency energy can be continuously output, so that the radiofrequency ablation is carried out in a cyclic and relatively uniform manner, and thus the ablation surgery can obtain an ideal treatment effect.

[0177] In some embodiments, the actual ablation parameter further includes actual ablation power.

[0178] The processor 61 is further configured to run the computer program 621 stored in the memory 62 to execute the following steps:

[0179] When issuing the sleep instruction, record the actual ablation power at the current moment.

[0180] In this embodiment, when the processor 61 executes "issuing an ablation instruction again to control the radiofrequency energy generator to continue outputting ablation power", it is specifically configured to execute the following steps:

[0181] Issue an ablation instruction again to control the radiofrequency energy generator to continue outputting the actual ablation power recorded when the sleep instruction was issued.

[0182] In some embodiments, the processor 61 is further configured to run the computer program 621 stored in the memory 62 to execute the following steps:

[0183] When a power adjustment signal is received, control the radio frequency energy generator to output corresponding ablation power according to the power adjustment signal.

[0184] Among them, the display unit 64 can be used to display the set ablation parameters, the recorded ablation time, the actual ablation parameters of the ablation site, the recorded dormancy time, etc., so as to display the real-time ablation state. In this way, the doctor can understand the situation of the ablation operation by observing various data displayed on the display unit 64, and adjust the output of the radio frequency power by operating the input unit 63.

[0185] In some embodiments, the set ablation parameters further include an ablation time threshold.

[0186] The processor 61 is further configured to run the computer program 621 stored in the memory 62 to execute the following steps:

[0187] Determine whether the recorded ablation time is greater than the ablation time threshold;

[0188] If the recorded ablation time is greater than the ablation time threshold, issue an end ablation instruction to control the radio frequency energy generator to stop outputting ablation power.

[0189] In some embodiments, the processor 61 is further configured to run the computer program 621 stored in the memory 62 to execute the following steps:

[0190] When a pause signal is received, issue a pause ablation instruction to control the radio frequency energy generator to pause outputting ablation power, and pause recording the ablation time;

[0191] When a start signal is received again, issue an ablation instruction again to control the radio frequency energy generator to continue outputting ablation power, and continue recording the ablation time.

[0192] In this embodiment, the actual ablation parameters further include actual ablation power. The processor 61 is further configured to run the computer program 621 stored in the memory 62 to execute the following steps:

[0193] When the pause ablation instruction is issued, record the actual ablation power at the current moment.

[0194] In this embodiment, when the processor 61 executes "when a start signal is received again, issue an ablation instruction again to control the radio frequency energy generator to continue outputting ablation power", it is specifically configured to execute the following steps:

[0195] When the start signal is received again, an ablation instruction is sent again to control the radio frequency energy generator to continue outputting the actual ablation power recorded when the pause ablation instruction was sent.

[0196] In some embodiments, the processor 61 is further configured to run a computer program 621 stored in the memory 62 to perform the following steps:

[0197] When a stop signal is received, an end ablation instruction is sent to control the radio frequency energy generator to stop outputting ablation power.

[0198] In some embodiments, the set ablation parameters further include an impedance threshold.

[0199] The processor 61 is further configured to run a computer program 621 stored in the memory 62 to perform the following steps:

[0200] Determine whether the actual impedance exceeds the impedance threshold;

[0201] If the actual impedance exceeds the impedance threshold, a stop ablation instruction is sent to control the radio frequency energy generator to stop outputting ablation power.

[0202] In some embodiments, the set ablation parameters further include a temperature threshold, and the actual ablation parameters further include an actual ablation temperature.

[0203] The processor 61 is further configured to run a computer program 621 stored in the memory 62 to perform the following steps:

[0204] Determine whether the actual ablation temperature exceeds the temperature threshold;

[0205] If the actual ablation temperature exceeds the temperature threshold, a stop ablation instruction is sent to control the radio frequency energy generator to stop outputting ablation power.

[0206] Among them, the specific technical details of this embodiment can refer to the relevant technical details of the above-mentioned embodiments of the output control method of each radio frequency ablation power, and will not be elaborated here.

[0207] This application embodiment also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned embodiments of the output control method of each radio frequency ablation power are implemented, such as Figure 1 the steps 101-108 shown, Figure 4 the steps 401-408 shown, or Figure 5Steps 501 to 507 shown. Among them, for the specific technical details of this embodiment, reference can be made to the relevant technical details of the above embodiments of the output control method of each radiofrequency ablation power, which will not be elaborated here.

[0208] If the module / unit integrated in the output control device / computer device of the radiofrequency ablation power of the present application is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above embodiments of the output control method of the radiofrequency ablation power of the present application, it can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above embodiments of the output control method of each radiofrequency ablation power can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0209] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved. In addition, obviously, the word "including" does not exclude other units or steps, and the singular does not exclude the plural.

[0210] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An output control device for radiofrequency ablation power, comprising a memory and a processor, wherein a computer program is stored in the memory, characterized in that, When the processor runs the computer program, it executes the steps of the output control method for radiofrequency ablation power. The steps of the output control method for radiofrequency ablation power include: Set ablation parameters according to the input signal in the initial state. Among them, the set ablation parameters at least include a preset ablation power. When a start signal is received, send an ablation instruction to control the radiofrequency energy generator to output the preset ablation power, record the ablation time, and obtain the actual ablation parameters of the ablation site in real time. Among them, the actual ablation parameters at least include the actual impedance. Judge whether the actual impedance meets the preset conditions. If the actual impedance meets the preset conditions, send a sleep instruction to control the radiofrequency energy generator to pause the output of ablation power, record the sleep time, and pause recording the ablation time. If the sleep time exceeds the sleep time threshold, send an ablation instruction again to control the radiofrequency energy generator to continue to output ablation power, and continue to record the ablation time. Among them, the preset conditions include a first preset condition and a second preset condition. The first preset condition is: R > K1×Rmin1, and the second preset condition is: R > K2×Rmin2. Where R is the actual impedance, K1 and K2 are proportionality coefficients, and K1 < K2. Rmin1 is the lowest impedance monitored during a preset period within the period of recording the ablation time. The preset period is the period closest to the current moment and having a preset time length. Rmin2 is the lowest impedance monitored during the period of recording the ablation time. Judging whether the actual impedance meets the preset conditions includes: judging whether the actual impedance meets any one of the first preset condition and the second preset condition. If the actual impedance meets any one of the first preset condition and the second preset condition, it is determined that the actual impedance meets the preset conditions.

2. The output control device for radiofrequency ablation power according to claim 1, characterized in that, The value range of K1 is 140% - 160%; the value range of K2 is 180% - 220%.

3. The output control device for radiofrequency ablation power according to claim 1, characterized in that, The value range of the preset time length is 15s - 25s.

4. The output control device for radiofrequency ablation power according to claim 1, characterized in that, The output control method for radiofrequency ablation power further includes the step of: When a power adjustment signal is received, control the radiofrequency energy generator to output the corresponding ablation power according to the power adjustment signal.

5. The output control device for radiofrequency ablation power according to claim 4, characterized in that, The actual ablation parameters further include the actual ablation power. The output control method for radiofrequency ablation power further includes: When the sleep instruction is sent, record the actual ablation power at the current moment. "Send an ablation instruction again to control the radiofrequency energy generator to continue to output ablation power" includes: Send an ablation instruction again to control the radiofrequency energy generator to continue to output the recorded actual ablation power.

6. The output control device for radiofrequency ablation power according to any one of claims 1-5, characterized in that, The set ablation parameters further include an ablation time threshold. The output control method for radiofrequency ablation power further includes: Judge whether the recorded ablation time is greater than the ablation time threshold. If the recorded ablation time is greater than the ablation time threshold, send an end ablation instruction to control the radiofrequency energy generator to stop outputting ablation power.

7. The output control device for radiofrequency ablation power according to claim 6, characterized in that, The method for controlling the output of radiofrequency ablation power further includes: When a pause signal is received, a pause ablation instruction is issued to control the radiofrequency energy generator to pause the output of ablation power, and the ablation time recording is paused.

8. The output control device for radiofrequency ablation power according to claim 7, characterized in that, The method for controlling the output of radiofrequency ablation power further includes: When a start signal is received again, an ablation instruction is issued again to control the radiofrequency energy generator to continue outputting ablation power, and the ablation time recording is continued.

9. The output control device for radiofrequency ablation power according to claim 8, characterized in that, The actual ablation parameters further include actual ablation power; the method for controlling the output of radiofrequency ablation power further includes: When the pause ablation instruction is issued, the actual ablation power at the current moment is recorded. "When a start signal is received again, an ablation instruction is issued again to control the radiofrequency energy generator to continue outputting ablation power" includes: When a start signal is received again, an ablation instruction is issued again to control the radiofrequency energy generator to continue outputting the recorded actual ablation power.

10. The output control device for radiofrequency ablation power as described in claim 6, wherein The method for controlling the output of radiofrequency ablation power further includes: When a stop signal is received, an end ablation instruction is issued to control the radiofrequency energy generator to stop outputting ablation power.

11. The output control device for radiofrequency ablation power as described in claim 6, wherein The set ablation parameters further include an impedance threshold; the method for controlling the output of radiofrequency ablation power further includes: Judging whether the actual impedance exceeds the impedance threshold; If the actual impedance exceeds the impedance threshold, a stop ablation instruction is issued to control the radiofrequency energy generator to stop outputting ablation power.

12. The output control device for radiofrequency ablation power as described in claim 6, wherein The set ablation parameters further include a temperature threshold, and the actual ablation parameters further include actual ablation temperature; the method for controlling the output of radiofrequency ablation power further includes: Judging whether the actual ablation temperature exceeds the temperature threshold; If the actual ablation temperature exceeds the temperature threshold, a stop ablation instruction is issued to control the radiofrequency energy generator to stop outputting ablation power.

13. A radiofrequency ablation system, comprising a radiofrequency energy generator, an ablation device, and the output control device for radiofrequency ablation power as described in any one of claims 1-12, The radiofrequency energy generator is configured to provide the radiofrequency energy required for radiofrequency ablation during the radiofrequency ablation process; The ablation device is electrically connected to the radiofrequency energy generator, and is configured to be inserted into the ablation site during radiofrequency ablation, receive the radiofrequency energy output by the radiofrequency energy generator, and release the radiofrequency energy to the ablation site to perform radiofrequency ablation on the ablation site; and The output control device for radiofrequency ablation power is electrically connected to the radiofrequency energy generator, and the output control device for radiofrequency ablation power is configured to control the radiofrequency energy generator to output the radiofrequency energy according to the set ablation parameters, the actual ablation parameters of the ablation site, and the user's input operation.

14. A computer-readable storage medium, on which a computer program is stored, wherein When the computer program is executed by a processor, it implements a method for controlling the output of radiofrequency ablation power. The steps of the method for controlling the output of radiofrequency ablation power include: Setting ablation parameters according to an input signal in an initial state, where the set ablation parameters at least include a preset ablation power; When a start signal is received, an ablation instruction is issued to control the radiofrequency energy generator to output the preset ablation power, and the ablation time is recorded and the actual ablation parameters of the ablation site are obtained in real time, where the actual ablation parameters at least include actual impedance; Judging whether the actual impedance meets a preset condition; If the actual impedance meets the preset condition, a sleep instruction is issued to control the radiofrequency energy generator to pause the output of ablation power, and the sleep time is recorded and the ablation time recording is paused; If the sleep time exceeds the sleep time threshold, an ablation instruction is issued again to control the radiofrequency energy generator to continue outputting ablation power, and the ablation time recording is continued; Among them, the preset conditions include a first preset condition and a second preset condition. The first preset condition is: R > K1×Rmin1, and the second preset condition is: R > K2×Rmin2, where R is the actual impedance, K1 and K2 are proportionality coefficients, and K1 < K2, Rmin1 is the lowest impedance monitored during a preset time period within the period of recording the ablation time, the preset time period is the time period closest to the current moment and having a preset time length, and Rmin2 is the lowest impedance monitored during the period of recording the ablation time; Determining whether the actual impedance meets the preset conditions includes: determining whether the actual impedance meets any one of the first preset condition and the second preset condition; If the actual impedance meets any one of the first preset condition and the second preset condition, it is determined that the actual impedance meets the preset conditions.

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