Eye radiofrequency ablation instrument and control method thereof

Abstract

The embodiment of the invention provides an eye radiofrequency ablation instrument and a control method thereof. The radiofrequency ablation instrument comprises a control module, a radiofrequency module, an impedance detection module and an information reading module, the control module is used for communicating with the radio frequency module, the impedance detection module and the information reading module so as to control the radio frequency ablation instrument to generate radio frequency energy; the radio frequency module is used for generating radio frequency energy based on a control instruction of the control module; the impedance detection module is used for detecting impedance information before, in or after radio frequency energy output; the information reading module is used for obtaining electrode information of the ablation electrode when the ablation electrode is connected with the radiofrequency ablation instrument.

Description

Technical Field

[0001] This specification relates to the field of medical technology, and particularly to an ophthalmic radiofrequency ablation instrument and a control method thereof. Background Art

[0002] Radiofrequency ablation technology has been widely used in the medical field. In clinical applications, radiofrequency devices mainly perform ablation through the thermal effect on organisms. When radiofrequency current flows through human tissues, due to the rapid change of the electromagnetic field, polar water molecules in the tissues move at high speed, generating heat (i.e., endogenous thermal effect), causing the evaporation, drying, shrinkage and exfoliation of water inside and outside cells, resulting in aseptic necrosis, so as to achieve the purpose of treatment.

[0003] However, due to the small size of ocular tissues, there are higher requirements for the electrodes of radiofrequency ablation, ablation accuracy, clinical operability, treatment safety, etc. At present, there is no mature radiofrequency ablation technology applied to ocular tissues.

[0004] Therefore, it is hoped that an ophthalmic radiofrequency ablation instrument and method can be provided to achieve precise radiofrequency ablation treatment of ocular diseases such as glaucoma on ocular tissues, while making clinical operations more convenient and safer. Summary of the Invention

[0005] One or more embodiments of this specification provide an ophthalmic radiofrequency ablation instrument for providing radiofrequency energy to an ablation electrode connected thereto. The ophthalmic radiofrequency ablation instrument includes: a control module, a radiofrequency module, an impedance detection module, and an information reading module; the control module is used to communicate with the radiofrequency module, the impedance detection module, and the information reading module to control the radiofrequency ablation instrument to generate the radiofrequency energy; the radiofrequency module is used to generate radiofrequency energy based on the control instruction of the control module; the impedance detection module is used to detect the impedance information before, during, or after the output of the radiofrequency energy; the information reading module is used to obtain the electrode information of the ablation electrode when the ablation electrode is connected to the radiofrequency ablation instrument.

[0006] In some embodiments, the radiofrequency module further includes a radiofrequency power supply, a radiofrequency signal source, and a power amplification module, wherein: the radiofrequency power supply is connected to the control module and the power amplification module, and is used to provide electrical energy for the generation of the radiofrequency energy; the radiofrequency signal source is connected to the control module and the power amplification module, and is used to generate a radiofrequency signal based on the control instruction; the power amplification module is used to generate alternating current radiofrequency energy based on the radiofrequency signal and the electrical energy.

[0007] In some embodiments, the control module is further configured to: verify the ablation electrode based on the electrode information acquired by the information reading module; give a prompt in response to the ablation electrode being unavailable; or in response to the ablation electrode being available, display the electrode type and electrode life information of the ablation electrode and request confirmation.

[0008] In some embodiments, the availability of the ablation electrode includes: the ablation electrode is not an illegal electrode, is within the expiration date, and the remaining number of uses or the remaining ablation duration of the ablation electrode is not zero.

[0009] In some embodiments, the expiration date includes the expiration date on the packaging of the ablation electrode and a preset usage time range after the first use after unpacking. The electrode life information includes the number of times the electrode has been used and the remaining number of uses, or the cumulative ablation duration and the remaining ablation duration.

[0010] In some embodiments, the ophthalmic radiofrequency ablation instrument further includes a foot switch interface for connecting a foot switch. The control module is further configured to: detect whether the foot switch is connected in response to the confirmation of the electrode type and electrode life information of the ablation electrode; give a prompt in response to the foot switch not being connected; and enter a parameter setting interface in response to the foot switch being connected or the user clicking the confirmation button in the prompt interface.

[0011] In some embodiments, the control module is further configured to: recommend target parameters in response to the confirmation of the electrode type and electrode life information of the ablation electrode by the user; preferably, recommend parameter values or user-selectable parameter ranges related to the target parameters based on the electrode type of the ablation electrode; preferably, the target parameters include the output duration and output power of the radiofrequency energy.

[0012] In some embodiments, the ophthalmic radiofrequency ablation instrument further includes an activation switch. The control module is further configured to: give a prompt in response to the abnormal activation of the activation switch; the abnormal activation of the activation switch includes: the activation switch is activated when the first preset condition is not met, and the first preset condition includes that all functions of the radiofrequency ablation instrument are normal, the foot switch is connected, the ablation electrode is available, and the target parameters are determined.

[0013] In some embodiments, the control module is further configured to: in response to the activation switch being started when the first preset condition is satisfied, enter the treatment interface; the information displayed on the treatment interface includes at least one of electrode status, electrode type, electrode life, output duration of radiofrequency energy, real-time treatment time, output power of radiofrequency energy, and impedance information; preferably, the information displayed on the treatment interface includes electrode status, electrode type, electrode life information, output power of radiofrequency energy, output duration of radiofrequency energy, real-time treatment time, and real-time impedance.

[0014] In some embodiments, the control module is further configured to: in response to the abnormal start of the foot switch, give a prompt; the abnormal start of the foot switch includes: the foot switch is started when the second preset condition is not satisfied; the second preset condition includes that the radiofrequency ablation instrument enters the treatment interface.

[0015] One or more embodiments of this specification provide a control method for a radiofrequency ablation instrument; the method includes: in response to the power-on of the radiofrequency ablation instrument, detecting whether the functions of the radiofrequency ablation instrument are normal; in response to all functions of the radiofrequency ablation instrument being normal, detecting whether the ablation electrode connected to the radiofrequency ablation instrument is available; in response to the ablation electrode being available and the electrode information having been confirmed, entering the parameter setting interface; in response to the ablation electrode being available before or after the electrode information is confirmed, detecting whether the foot switch is connected; in response to the foot switch being connected and based on the target parameters recommended or set on the parameter setting interface, controlling the output or stop of radiofrequency energy.

[0016] In some embodiments, detecting whether the functions of the radiofrequency ablation instrument are normal includes at least one of the following: detecting whether the foot switch and / or the activation switch are abnormally started; detecting whether the status of the analog-to-digital converter of the radiofrequency ablation instrument is normal; detecting whether the magnitude of the radiofrequency output frequency is normal; detecting whether the real-time clock is accurate; detecting whether the serial communication is normal; detecting whether the power supply is normal; and detecting whether the reading and writing of the memory are normal.

[0017] In some embodiments, detecting whether the real-time clock is accurate includes: comparing the time of the real-time clock with the latest device record time, and if the time of the real-time clock is before the device record time, determining that the real-time clock is inaccurate; and / or in response to the real-time clock being inaccurate, reminding the after-sales maintenance personnel to adjust the time.

[0018] In some embodiments, controlling the output or stop of the radio frequency energy based on the target parameters recommended or set on the parameter setting interface further includes: in response to the activation switch being activated when meeting a first preset condition, determining whether the ablation electrode reaches the target position; in response to the impedance information reaching a preset value or the ablation electrode reaching a predetermined depth, determining that the ablation electrode reaches the target position; and when the ablation electrode reaches the target position, in response to the foot switch being activated, controlling the output of the radio frequency energy based on the target parameters.

[0019] In some embodiments, during the process of controlling the output or stop of the radio frequency energy, it further includes: when the impedance changes suddenly, controlling the radio frequency energy to stop output; or, automatically stopping the output of the radio frequency energy in response to the foot switch being released, or the activation switch being turned off, or the timing reaching the output duration of the radio frequency energy.

[0020] One or more embodiments of this specification provide a computer-readable storage medium, and the storage medium stores computer instructions. When a computer reads the computer instructions in the storage medium, the computer executes the control method as described above.

[0021] The eye radiofrequency ablation instrument and control method provided in this embodiment can perform precise eye radiofrequency ablation treatment on different eye tissues to treat eye diseases such as glaucoma, can be connected to the ablation electrode and read the stored information of the ablation electrode, and can monitor the impedance change during the treatment process in real time, making the radiofrequency ablation treatment process simpler and faster. It can also determine whether the conditions for radiofrequency ablation are met, ensuring the safety and standardization of the radiofrequency ablation treatment process, and at the same time simplifying the operation steps and operation difficulty of the user. Description of the Drawings

[0022] This specification will be further described by way of exemplary embodiments, and these exemplary embodiments will be described in detail through the drawings. These embodiments are not restrictive. In these embodiments, the same numbers represent the same structures, where:

[0023] Figure 1 is a schematic diagram of the application scenario of the eye radiofrequency ablation instrument shown in some embodiments of this specification;

[0024] Figure 2 is an exemplary module diagram of the eye radiofrequency ablation instrument shown in some embodiments of this specification;

[0025] Figure 3 is a software / hardware schematic diagram of the control module shown in some embodiments of this specification;

[0026] Figure 4Schematic diagram of an eye radiofrequency ablation instrument according to some embodiments of this specification;

[0027] Figure 5 Exemplary flowchart of a control method according to some embodiments of this specification;

[0028] Figure 6 Exemplary schematic diagram of a clock setting interface according to some embodiments of this specification;

[0029] Figure 7a Exemplary schematic diagram of a parameter setting interface according to some embodiments of this specification;

[0030] Figure 7b Exemplary schematic diagram of an electrode information confirmation interface according to some embodiments of this specification;

[0031] Figure 8 Exemplary schematic diagram of a treatment interface according to some embodiments of this specification;

[0032] Figure 9 Exemplary flowchart of a control method according to some other embodiments of this specification; and

[0033] Figure 10 Exemplary schematic diagram of the combination of an eye radiofrequency ablation instrument and a trolley according to some embodiments of this specification. Detailed implementation manners

[0034] To more clearly illustrate the technical solutions of the embodiments of this specification, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some examples or embodiments of this specification. For those of ordinary skill in the art, without creative efforts, this specification can also be applied to other similar scenarios based on these drawings. Unless obvious from the language context or otherwise stated, the same reference numerals in the figures represent the same structures or operations.

[0035] It should be understood that the "system", "device", "unit" and / or "module" used herein is a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the said words can be replaced by other expressions.

[0036] As shown in this specification and the claims, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0037] Flowcharts are used in this specification to illustrate the operations performed by the system according to the embodiments of this specification. It should be understood that the previous or subsequent operations are not necessarily executed precisely in sequence. On the contrary, the steps can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or more steps can be removed from these processes.

[0038] Figure 1 It is a schematic diagram of the application scenario of an eye radiofrequency ablation instrument shown according to some embodiments of this specification.

[0039] In some embodiments, as Figure 1 shown, the radiofrequency ablation instrument 100 can be used to provide radiofrequency energy to the ablation electrode 120 connected thereto to ablate the target tissue of the eye 130. Among them, the target tissue refers to the tissue site that needs to be radiofrequency ablated. For example, the target tissue may include the ciliary body, trabecular meshwork, or iris in the eye tissue, etc.

[0040] In some embodiments, when the ablation electrode 120 is connected to the radiofrequency ablation instrument 100, the radiofrequency ablation instrument 100 provides radiofrequency energy to the ablation electrode 120, and the radiofrequency energy is transmitted to the target tissue through the ablation electrode 120 to achieve the purpose of ablating the target tissue. In some embodiments, the ablation electrode 120 may include an electrode needle with a tip, and the tip is configured to pierce the target tissue. The electrode needle may include an outer electrode and an inner electrode. Under the radiofrequency energy provided by the radiofrequency ablation instrument, one of the outer electrode and the inner electrode serves as the positive electrode and the other serves as the negative electrode, and an ablation wave is formed between the positive electrode and the negative electrode, thereby realizing the ablation of the target tissue.

[0041] In some embodiments, when the ablation electrode 120 is first connected to the radiofrequency ablation instrument 100, the radiofrequency ablation instrument 100 can actively write the electrode's first use time into the storage chip of the ablation electrode 120.

[0042] In some embodiments, each time the ablation electrode 120 is connected to the radiofrequency ablation instrument 100, the radiofrequency ablation instrument 100 can actively update and write usage information such as the remaining number of uses of the electrode and the number of times already used (or the cumulative ablation duration and the remaining ablation duration) into the storage chip of the ablation electrode 120.

[0043] In some embodiments, in response to the end of ablation, the radiofrequency ablation device 100 may update electrode information (such as the remaining number of uses of the electrode, the number of times already used, or the cumulative ablation duration and the remaining ablation duration, etc.), and / or actively write the electrode information stored in the radiofrequency ablation device (such as the remaining number of uses of the electrode, the number of times already used, or the cumulative ablation duration and the remaining ablation duration, etc.) into the storage chip of the ablation electrode.

[0044] In some embodiments, the ablation electrode 120 may be connected to the radiofrequency ablation device 100 through a connector. Exemplarily, the structure of the connector may be a plug and a socket, and the connector may include an aviation plug, an N-type connector, an SMA connector, etc. For example Figure 1 As shown, one end of the ablation electrode 120 is a connector, and the connector is inserted into the connector socket 1040, and the ablation electrode 120 is connected to the radiofrequency ablation device 100 through the connector.

[0045] Figure 2 is an exemplary module diagram of an eye radiofrequency ablation device shown according to some embodiments of this specification.

[0046] In some embodiments, such as Figure 2 As shown, the radiofrequency ablation device 100 may include a control module 210, a radiofrequency module 220, an impedance detection module 230, and an information reading module 240.

[0047] In some embodiments, the control module 210 is used to communicate with the radiofrequency module, the impedance detection module, and the information reading module to control the radiofrequency ablation device to generate radiofrequency energy. In some embodiments, the control module 210 may be communicatively connected or electrically connected to the radiofrequency module 220, the impedance detection module 230, and the information reading module 240. The control module 210 may read information from the modules connected to it or send control instructions to each component to achieve the control of the radiofrequency ablation device 100. For example, the control module 210 may receive the impedance information of the target tissue detected by the impedance detection module 230 and determine whether the ablation electrode has reached the target position of the eye based on the impedance information. For another example, the control module 210 may receive the electrode information of the ablation electrode obtained by the information reading module 240, determine whether the ablation electrode is available based on the electrode information, and if available, control the output module to output the electrode information; if not available, control the output module to output a warning message (such as "Electrode verification failed, please replace the electrode", "Electrode life ended, please replace the electrode", etc.). For another example, the control module 210 may detect the operating state of the radiofrequency ablation device and / or its accessories (such as a foot switch, an ablation electrode), judge the occurrence of a warning or an error, and output a warning message or a prompt sound through the output module. For more content on this part, reference may be made to the following text.

[0048] In some embodiments, the control module 210 may include a microcontroller unit (MCU). The microcontroller unit may be used to process data from at least one component of the radiofrequency ablation instrument and / or its accessories or an external data source (e.g., a cloud data center). For example, the microcontroller unit may generate control instructions based on target parameters of the target tissue (such as calculating the amplitude or magnitude of the radiofrequency signal by the output power) to control the radiofrequency module to output radiofrequency energy. For another example, the microcontroller unit may receive the impedance information of the target tissue obtained by the impedance detection module and control the output module to output and display the impedance information. For yet another example, the microcontroller unit may receive the electrode information of the ablation electrode obtained by the information reading module and control the output module to output and display the electrode information for confirmation purposes.

[0049] In some embodiments, the microcontroller unit may be used to implement functions such as analog-to-digital signal conversion, serial communication, SPI (Serial Peripheral Interface) communication, IIC (Inter-Integrated Circuit) communication, signal timing capture, timing control, identification of digital control states and logic control, and calculation of radiofrequency voltage and current. For more details, see Figure 3 the description in

[0050] The radiofrequency module 220 may be used to generate a radiofrequency signal based on the control instructions sent by the control module 210 to provide radiofrequency energy for the ablation electrode (such as radiofrequency energy with a peak value in the range of 0 - 300V) after the ablation electrode is electrically connected to the radiofrequency ablation instrument 100.

[0051] Figure 4 is a schematic diagram of an ocular radiofrequency ablation instrument according to some embodiments of this specification.

[0052] In some embodiments, as Figure 4 shown, the radiofrequency module 220 may include a radiofrequency signal source 223, a radiofrequency power supply 221, and a power amplification module 225.

[0053] The radiofrequency signal source 223 is connected to the control module 210 and the power amplification module 225 and is used to generate a radiofrequency signal based on the control instructions of the control module 210. For example, the radiofrequency signal source 223 may generate a radiofrequency signal with a corresponding frequency and magnitude based on the signal generation instruction containing information such as frequency and magnitude sent by the control module 210. In some embodiments, the radiofrequency signal source 223 may be connected to the control module 210 through a preset connection method. The preset connection method may include electrical connection, communication connection, etc.

[0054] In some embodiments, the radio frequency signal may include an analog signal or a digital signal. For example, the radio frequency signal source 223 may be a DDS signal generator for generating a digital signal. As another example, the radio frequency signal source 223 may be based on a phase-locked loop and adjust the parameters (such as frequency, amplitude, etc.) of the radio frequency signal through an RC circuit to generate an analog signal. The RC circuit based on the phase-locked loop refers to a circuit that adjusts the signal frequency of the output signal based on the phase difference between the input signal and the output signal.

[0055] In some embodiments, the range of the radio frequency signal may be 300 KHz to 3 MHz. For example, 500 KHz, 700 KHz, 900 KHz, 1 MHz, 2 MHz, etc. In some embodiments, the radio frequency signal may include a weak electric waveform, a square wave, a sine wave, and a triangular wave.

[0056] The radio frequency power supply 221 is connected to the control module 210 and the power amplification module 225 and is used to provide electrical energy for the generation of radio frequency energy. In some embodiments, the radio frequency power supply may generate direct current electricity with a voltage range including 0 to 80 V. For example, 10 V, 30 V, 50 V, 80 V, etc.

[0057] In some embodiments, the radio frequency power supply 221 may include a voltage-adjustable power supply.

[0058] The voltage-adjustable power supply, also known as a voltage-controlled power supply, is used to adjust the voltage to a target value based on the control instruction sent by the control module 210 so that the radio frequency module 220 can generate a radio frequency signal with a predetermined output power. Exemplarily, after the user sets the output power of the radio frequency signal, the control module 210 can adjust the voltage of the voltage-adjustable power supply for this ablation according to the set output power, so that the electrical energy output by the radio frequency power supply 221 can form the radio frequency energy required for radio frequency ablation through the power amplification module.

[0059] In some embodiments, the radio frequency power supply 221 may adopt a power supply with a fixed voltage. In this case, the radio frequency module 220 can adjust and control the output power of the radio frequency signal by adjusting the output parameters (such as frequency, amplitude, etc.) of the radio frequency signal source 223, or control the output power of the radio frequency signal by adjusting the amplification power parameters of the power amplification module 225.

[0060] The power amplification module 225 is connected to the radio frequency signal source 223 and is used to form radio frequency energy through amplification based on the radio frequency signal output by the radio frequency signal source 223 and the electrical energy generated by the radio frequency power supply 221. As Figure 4 shown, one end of the power amplification module 225 is connected to the radio frequency signal source 223, and the other end is connected to the radio frequency power supply 221. In some embodiments, the radio frequency energy may include alternating current radio frequency energy.

[0061] In some embodiments, the power amplification module 225 can convert the direct current generated by the radio frequency power supply into variable alternating current radio frequency energy through amplification under the radio frequency signal output by the radio frequency signal source.

[0062] In some embodiments, the power amplification module 225 can include a class D power amplifier. The class D power amplifier is an electronic amplifier used to amplify a low-power signal into a high-power signal. Compared with traditional class A, class B, or class AB power amplifiers, the class D power amplifier has higher efficiency and lower power loss.

[0063] In some embodiments, the power amplification module 225 can generate radio frequency energy in various ways. For example, the power amplification module can generate radio frequency energy in a preset topological structure by means of a power switch cooperating with a transformer. For another example, the power amplification module can generate radio frequency energy by cooperating a power amplifier with a transformer or with an audio power amplifier circuit. Among them, the preset topological structure can include a flyback topological structure, a push-pull topological structure, and a full-bridge topological structure. The power switch can include MOS transistors, IGBTs, Darlington transistors, etc.

[0064] The impedance detection module 230 is used to detect impedance information before, during, or after the output of radio frequency energy. In some embodiments, the impedance detection module 230 is used to detect the impedance information of the target tissue during the ablation process and transmit the impedance information to the control module. For example, before the output of radio frequency energy, in response to the user inserting the ablation electrode into the target tissue of the patient, the impedance detection module can detect the impedance information of the target tissue. The impedance information can include real-time impedance.

[0065] In some embodiments, as Figure 4 shown, the impedance detection module 230 can include an impedance monitoring unit 231 and a voltage-current feedback unit 235.

[0066] The impedance monitoring unit 231 is used to monitor the impedance information of the target tissue before and after the output of radio frequency energy. In some embodiments, the impedance monitoring unit 231 can include a bio-impedance detection chip.

[0067] In some embodiments, the impedance monitoring unit 231 can obtain the impedance information of the target tissue and send the impedance information to the control module 210, and the control module 210 controls the output module (such as the output module 470) to display the impedance information of the target tissue. Among them, the impedance information can help the user determine whether the tip of the ablation electrode is inserted into the position to be treated (i.e., the target position).

[0068] In some embodiments, as Figure 4As shown, the impedance monitoring unit 231 can be connected to the control module 210 and the ablation electrode 120 through the electrode switching unit.

[0069] The electrode switching unit is used to conduct the ablation electrode 120 to the impedance monitoring unit 231 or conduct the ablation electrode 120 to the RF module 220. In some embodiments, the electrode switching unit may include a single-pole double-throw switch, for example, a relay switch, an analog switch, a switching circuit, etc.

[0070] In some embodiments, in response to before the RF energy starts to be output or after the output stops, the control module 210 can connect the impedance monitoring unit 231 to the ablation electrode 120 by controlling the single-pole double-throw switch.

[0071] In some embodiments, in response to when the RF energy is being output, the control module 210 can connect the RF module 220 to the ablation electrode 120 by controlling the single-pole double-throw switch, so that the RF module 220 provides RF energy for the ablation electrode 120.

[0072] It can be understood that the electrode switching unit can ensure that the impedance monitoring unit 231 and the RF module 220 are not conducted at any time, avoiding equipment failure due to the RF energy entering the impedance monitoring unit 231.

[0073] The voltage and current feedback unit 235 is used to monitor the impedance information of the target tissue during the output of the RF energy.

[0074] In some embodiments, the voltage and current feedback unit 235 may include a current and voltage sampling unit.

[0075] The current and voltage sampling unit is used to collect the feedback signals of the current and voltage, and calculate the impedance information based on the collected feedback signals of the current and voltage. In some embodiments, the voltage and current feedback unit 235 can send the collected current value and voltage value to the control module 210, and the control module 210 calculates the real-time impedance.

[0076] In some embodiments, the current and voltage sampling unit may include a transformer, a Hall voltage and current sensor, a sampling resistor. In some embodiments, the current and voltage sampling unit obtains the impedance information in various ways. For example, the current and voltage sampling unit can collect the feedback signals of the current and voltage, convert the AC current and voltage signals into DC current and voltage signals through a rectifying circuit, and calculate the impedance information through a resistance calculation formula. Among them, the resistance calculation formula includes Ohm's law formula.

[0077] In some embodiments, the current-voltage sampling unit 235 may acquire impedance information of the target tissue and send the impedance information to the control module 210, and the control module 210 controls the output module (such as the output module 470) to output the impedance information of the ocular tissue. Among them, the impedance information can help the user judge the change of the actual RF power and the set RF power. The set RF power is the maximum power during the treatment process. During the treatment process, the target tissue loses water and the impedance will increase. The power P = U 2 / R. With the voltage unchanged, the power will gradually decrease; therefore, the change of the impedance information can reflect the degree of radiofrequency ablation; when the impedance suddenly changes, even if the timer has not reached the treatment time, the radiofrequency ablation instrument will stop the output of radiofrequency energy, which can further ensure the safety of radiofrequency ablation.

[0078] The information reading module 240 is configured to acquire electrode information of the ablation electrode when the ablation electrode is connected to the radiofrequency ablation instrument. In some embodiments, the information reading module 240 reads the electrode information of the ablation electrode connected to the radiofrequency ablation instrument and transmits the electrode information to the control module 210.

[0079] In some embodiments, in response to the ablation electrode 120 being electrically connected to the radiofrequency ablation instrument 100, the information reading module 240 may automatically acquire the electrode information of the ablation electrode 120 and send it to the control module 210. In some embodiments, after the ablation is completed, in response to the remaining number of uses of the ablation electrode not being 0, the control module 210 may actively write the usage information of the ablation electrode recorded by the radiofrequency ablation instrument (such as the usage time, the number of times used, or the remaining number of uses) into the ablation electrode.

[0080] In some embodiments, as Figure 4 shown, the radiofrequency ablation instrument 100 may further include an input module 460 and an output module 470.

[0081] The input module 460 may be configured to control the start and stop of the radiofrequency energy output and / or set target parameters. In some embodiments, the input module may include an activation switch, a foot switch, and input buttons. Among them, the input buttons may be real buttons or virtual buttons. For example, the virtual button may be a function button on a touch display screen. The real buttons may include a keyboard, a mouse, or other keys, etc.

[0082] As Figure 1 shown, the activation switch 1030 may be a real button for activating the output control of the radiofrequency energy. In some embodiments, when the activation switch is used to start after meeting the first preset condition, it activates the radiofrequency module.

[0083] The first preset condition means that all functions of the radiofrequency ablation instrument are normal, the foot switch is connected and the connected ablation electrode is available, and the target parameters have been determined. When the first preset condition is met, the activation switch is activated, and the control module can control the radiofrequency module to generate radiofrequency energy.

[0084] It should be noted that the activation switch is not controlled by software but by the radiofrequency signal. If the activation switch is turned off, the radiofrequency generating circuit will be in the off state, and the control module 210 will not send a control signal for radiofrequency output, and the control of radiofrequency energy output cannot be achieved.

[0085] During the ablation of the target tissue, if the output of the radiofrequency energy is abnormal or an emergency occurs (such as the patient's body is abnormal, the device fails, etc.), the user turns off the activation switch, and the radiofrequency module 220 will stop outputting radiofrequency energy.

[0086] In some embodiments, in response to the abnormal activation of the activation switch, the control module 210 can send a warning message to the output module 470 and display the warning message to prompt the user. The warning message can include, for example, "Please release the activation switch". In some embodiments, the abnormal activation of the activation switch includes: the activation switch is activated when the first preset condition is not met. For more content of the first preset condition, see the above.

[0087] The foot switch is used to control the start and stop of the radiofrequency energy output after the second preset condition is met. In some embodiments, the connection method between the foot switch and the radiofrequency ablation instrument can include cable connection and wireless network connection.

[0088] The second preset condition means that after the first preset condition is met, the ablation electrode is inserted into the target tissue and reaches the target position. In some embodiments, the second preset condition further includes that the radiofrequency ablation instrument enters the treatment interface. It can be understood that more treatment information cannot be displayed when the treatment interface is not entered. At this time, there are uncertain factors for the doctor regarding the output of the radiofrequency energy. Therefore, it is necessary to enter the treatment interface before the radiofrequency energy is output. For more content of the treatment interface, see Figure 8 。

[0089] In some embodiments, in response to the foot switch not being connected to the radiofrequency ablation instrument, the control module 210 can send a warning message to the output module 470 and display the warning message. The warning message can include, for example, "The foot switch is not connected", so that the user can connect the foot switch to the radiofrequency ablation instrument.

[0090] In some embodiments, in response to the abnormal activation of the foot switch (such as being activated when the second preset condition is not met), the control module 210 can send a warning message to the output module 470 and display the warning message. The warning message can include, for example, "Please release the foot switch".

[0091] During the radiofrequency ablation treatment process, the doctor needs to perform an ophthalmic surgery under a microscope while holding the electrode with the hand; in some embodiments of this specification, by setting a foot switch and using the foot switch to control the start and stop of the radiofrequency energy output, it is convenient for the doctor to perform the treatment operation. It can be understood that the radiofrequency ablation instrument can also operate without a foot switch. In this case, other operators (such as a doctor's assistant) operate the radiofrequency energy control switch to control the start and stop of the radiofrequency energy output; or the control switch can be set in other ways (such as on the operating handle of the ablation electrode, etc.).

[0092] The output module 470 can be used to display treatment information, electrode information, and / or prompt information to the user. For the descriptions of treatment information, electrode information, and prompt information, reference can be made to Figure 5 the descriptions in. In some embodiments, the output module may include a display screen (such as the display screen 1010) or an audio device (such as the audio device 440).

[0093] In some embodiments, such as Figure 4 shown, the radiofrequency ablation instrument 100 may further include a power supply module 420.

[0094] The power supply module 420 is used to supply power to the control module 210, the radiofrequency module 220, the input module 460, the output module 470, and each module communicating with the control module 210.

[0095] In some embodiments, the power supply module 420 may be electrically connected to the control module 210 to supply power to the control module, and at the same time supply power to the remaining modules in the radiofrequency ablation instrument (such as the input module 460, the output module 470, the impedance detection unit 231, the voltage and current feedback unit 235, the information reading module 240, etc.) through the control module.

[0096] In some embodiments, the voltage range output by the power supply module 420 may include 5 - 110V. For example, 5V, 10V, 50V, 100V, etc.

[0097] In some embodiments, the power supply module 420 may include multiple power sub - modules. The multiple power sub - modules can respectively supply power to multiple modules in the radiofrequency ablation instrument 100. For example Figure 4 shown, the power sub - module 421 can supply power to the output module 470, and the power sub - module 423 can supply power to the control module 210 and the modules electrically connected to the control module 210 (such as the impedance detection unit 231, the voltage and current feedback unit 235, the information reading module 240, etc.).

[0098] It can be understood that by independently powering the module corresponding to the power supply sub-module through the power supply sub-module, the power supply stability of the radiofrequency ablation instrument can be improved, and mutual power interference will not occur.

[0099] In some embodiments, such as Figure 4 shown, the radiofrequency ablation instrument 100 may further include a power filter 410, a memory 430, an audio device 440, and a real-time clock 450.

[0100] The power filter 410 is used to suppress the noise in the AC power supply, so as to transmit the AC power supply to the power module without attenuation. It can be understood that the power filter can attenuate the EMI noise introduced along with the AC power supply, and at the same time effectively suppress the EMI noise generated by electrical equipment to prevent it from entering the AC power grid and interfering with other electronic devices.

[0101] The memory 430 is used to store data, instructions, and / or any other information. In some embodiments, the memory may store data and / or information obtained from at least one component of the ophthalmic radiofrequency ablation instrument or an external data source. For example, the memory may store ablation parameters, electrode information. For another example, the memory may store alternative output power and alternative treatment time, etc.

[0102] In some embodiments, the memory 430 may include a mass memory, a removable memory, etc., or any combination thereof. Preferably, the memory 430 may be an Electrically Erasable Programmable Read Only Memory (EEPROM). By using the EEPROM memory, data can still be retained after the device loses power or shuts down, avoiding data loss. In some embodiments, the memory 430 may be integrated into the control module 210 or other modules of the radiofrequency ablation instrument 100.

[0103] The audio device 440 can be used to emit audio information. In some embodiments, the audio information may include audio warning information, prompts, etc. For example, when the control module 210 detects that the activation switch is abnormally started (i.e., started when the first preset condition is not met), the audio device 440 can voice broadcast a warning message "Please release the activation switch". For another example, when the control module 210 detects that the ablation electrode connection is disconnected, the audio device 440 can emit a beeping prompt sound. In some embodiments, the audio device 440 may be integrated into the radiofrequency ablation instrument 100.

[0104] The real-time clock 450 is used to provide time information for the radiofrequency ablation instrument 100. In some embodiments, the user can set the real-time clock through the input module 460 (such as the touch interface of the touch display screen) when the radiofrequency ablation instrument is first used. For example, the user canFigure 6 Set the real-time clock in the clock setting interface 600 shown. In some embodiments, in response to the inaccurate time of the real-time clock 450, the control module 210 may control the display screen to enter the clock setting interface (such as Figure 6 the interface shown) so that the user (such as after-sales maintenance personnel or engineers) can adjust the time information.

[0105] It should be understood that Figure 2 the system and its modules shown can be implemented in various ways. For example, in some embodiments, the information reading module can be integrated in the control module; the output module can be other devices communicatively connected to the control module, such as a smart phone or a laptop computer, etc.

[0106] It should be noted that the above description of the radiofrequency ablation instrument and its modules is only for convenience of description and does not limit this specification within the scope of the examples given. It can be understood that for those skilled in the art, after understanding the principle of the system, it may be possible to make any combination of the various modules or form a subsystem and connect it to other modules without departing from this principle. In some embodiments, Figure 2 the control module, radiofrequency module, impedance detection module, and information reading module disclosed in can be different modules in a system, or one module can implement the functions of two or more of the above modules. For example, the various modules can share a storage module, or each module can have its own storage module respectively. Such deformations are all within the protection scope of this specification.

[0107] Figure 3 is a software / hardware schematic diagram of a microcontroller unit according to some embodiments of this specification.

[0108] In some embodiments, the microcontroller unit can be used to have at least one function of pulse width modulation control, output / input, analog-to-digital conversion, read-only storage, random storage, flash memory, timing, and serial communication. As Figure 3 shown, the microcontroller unit may include a processor 310, a flash memory 320, a read-only memory 330, a random access memory 340, an input / output port 350, a communication port 360, an analog-to-digital converter 370, and a timer 380. These components can be connected through a bus to transmit information to implement related functions.

[0109] The processor 310 can be used to process data from at least one component of the radiofrequency ablation instrument 100 (such as the radiofrequency module 220, the impedance detection module 230, the information reading module 240, the input module 460, etc.) or an external data source (for example, a cloud data center) to implement functions such as pulse width modulation control, human-computer interaction, initiation of ablation treatment, timing control, logic control (such as warning when the activation switch or foot switch starts abnormally, or when an error occurs during self-check, and prompting when the ablation electrode is unavailable, etc.), and calculation of radiofrequency voltage and current. Among them, pulse width modulation control refers to changing the pulse width to control the output power of the radiofrequency module. For example, the processor 310 can read the ablation parameters in the flash memory 320 and control the radiofrequency module to output radiofrequency energy based on the ablation parameters. For another example, the processor 310 can receive the impedance information of the target tissue detected by the impedance detection module 230 through the input / output port 350, and judge whether the ablation electrode reaches the target position of the eye based on the impedance information, and / or display the impedance information on the display screen after conversion. For another example, the processor 310 can collect the operating status of the radiofrequency ablation instrument and / or its accessories (such as the foot switch, ablation electrode) through the communication port 360, judge the occurrence of a warning or error, and display it on the display screen or generate a prompt sound.

[0110] The flash memory 320, the read-only memory 330, and the random access memory 340 can perform data storage. For example, the ablation parameters set by the user can be stored in the flash memory 320.

[0111] The communication port 360 can perform serial communication, SPI communication, IIC communication, etc.

[0112] The analog-to-digital converter 370 can be used to convert between analog signals and digital signals.

[0113] The timer 380 can perform signal timing capture. Signal timing capture means timing to obtain an input signal, such as timing to obtain voltage and / or current information during the output of radiofrequency energy.

[0114] Figure 5 is an exemplary flowchart of the control method shown in some embodiments of this specification. As Figure 5 shown, the process 500 can include the following steps:

[0115] Step 510, in response to the radiofrequency ablation instrument being powered on, detect whether the functions of the radiofrequency ablation instrument are normal.

[0116] Powering on can refer to starting the radiofrequency ablation instrument through a key and other means (such as voice, etc.).

[0117] In some embodiments, before powering on, preparations before powering on can be performed first, such as connecting the power supply, connecting the foot switch, etc. In some embodiments, after powering on, it can be detected whether the radiofrequency ablation instrument is powered on normally (such as whether the system is normally powered on, whether the system power-on button is normally started, whether it can normally enter the power-on screen, etc.).

[0118] In some embodiments, in response to the radiofrequency ablation instrument being powered on normally, the control module can automatically detect whether each module of the radiofrequency ablation instrument is operating normally.

[0119] In some embodiments, detecting whether the functions of the radiofrequency ablation instrument are normal includes at least one of the following: detecting whether the foot switch and / or the activation switch are abnormally started; detecting whether the status of the analog-to-digital converter of the radiofrequency ablation instrument is normal; detecting whether the magnitude of the radiofrequency output frequency is normal; detecting whether the real-time clock is accurate; detecting whether the serial communication is normal; detecting whether the power supply is normal; and detecting whether the reading and writing of the memory are normal.

[0120] In some embodiments, if it is detected that the foot switch is not connected, a prompt message such as "Foot switch not connected" can be output on the display interface. In some embodiments, the detection of whether the foot switch is connected can be performed in other steps. For example, when the ablation electrode is available and the user confirms the electrode information, it can be detected whether the foot switch is connected. In some embodiments, it can be monitored in real time whether the foot switch is connected during the entire ablation process. For more information about the abnormal start of the foot switch or the activation switch, see the above.

[0121] In some embodiments, triggering a prompt can occur when the foot switch or the activation switch is started in a state where the ablation electrode is not connected. In some embodiments, the prompt can include: Please release the activation switch, or Please release the foot switch. Exemplarily, when the foot switch is started in a state where the ablation electrode is not connected, the display screen of the radiofrequency ablation instrument prompts "Please release the foot switch"; when the activation switch is started in a state where the ablation electrode is not connected, the display screen of the radiofrequency ablation instrument prompts "Please release the activation switch". By triggering the prompt, it is indicated that the radiofrequency energy control switch can be normally connected and communicate.

[0122] In some embodiments, in response to an abnormality existing in the functions of each module of the radiofrequency ablation instrument, the display screen can display a prompt message. The prompt message can include an error code. The error code can represent different detected errors. For example, E01 - 12V represents a detection error, and E04 - DAC represents an output abnormality, etc.

[0123] In some embodiments, detecting whether the functions of the radiofrequency ablation instrument are normal can be achieved in various ways. For example, by detecting changes in current, voltage, and signals, it can be determined whether one or more modules of the radiofrequency ablation instrument are functioning normally.

[0124] In some embodiments, to detect whether the state of the analog-to-digital converter (ADC) of the radiofrequency ablation instrument is normal, the output data of the ADC chip can be read through SPI communication, so as to determine whether its state is normal.

[0125] Detecting whether the magnitude of the radiofrequency output frequency is normal refers to the process of measuring and monitoring the frequency of the radiofrequency signal. In some embodiments, the timer-capture driver module and / or the DDS (Direct Digital Synthesis) driver module can be used to implement the measurement and generation of the radiofrequency signal frequency. The timer-capture driver module means that the timer module inside the microcontroller unit or digital signal processor (DSP) measures by capturing the time of external events. Exemplarily, in the detection of the radiofrequency output frequency magnitude, the timer-capture driver module can be used to measure the period or pulse width of the radiofrequency signal, so as to calculate the frequency magnitude; by capturing the time interval of the rising edge or falling edge of the radiofrequency signal, the frequency of the radiofrequency signal can be accurately calculated.

[0126] The DDS driver module can generate precise frequencies digitally, such as including a phase accumulator, a sine wave table, and a digital-to-analog converter, etc. Exemplarily, the DDS driver module can generate a radiofrequency signal of a specific frequency; by controlling the phase accumulator of the DDS, the required radiofrequency signal frequency can be accurately generated, and rapid switching and adjustment of the frequency can be achieved.

[0127] In some embodiments, the timer-capture driver module can measure the actual output frequency of the radiofrequency signal, and the DDS driver module can generate a radiofrequency signal of a specific frequency. By combining the two methods, precise measurement and generation of the radiofrequency signal frequency can be achieved.

[0128] In some embodiments, detecting whether the real-time clock is accurate may include: comparing the time of the real-time clock with the latest device-recorded time. If the time of the real-time clock is before the device-recorded time, it is determined that the real-time clock is inaccurate. In some embodiments, in response to the real-time clock being inaccurate, the after-sales maintenance personnel are reminded to adjust the time.

[0129] Figure 6 is an exemplary schematic diagram of the clock setting interface shown in some embodiments of this specification. In some embodiments, as Figure 6 shown, the clock setting interface 600 may include year, month, day, hour, minute, week, and an OK button. Among them, by inputting the correct year, month, day, hour, minute, and week in the input boxes corresponding to year, month, day, hour, minute, and week, and touching the OK button, the time reset can be completed.

[0130] In some embodiments, in response to the first use of the radiofrequency ablation device, the display screen can display a clock setting page. The user cannot set the system time at other times; if the real-time clock is inaccurate (such as the time of the real-time clock is before the device records the time), the system time needs to be set, and the after-sales maintenance personnel can be reminded to adjust the time. After-sales maintenance personnel or technicians can use engineering electrodes to set the time setting page; in addition, after-sales maintenance personnel can also correct some electrode information in the engineering interface (such as when the information is incorrect) and rewrite or perform other background settings. The engineering electrode is a type of ablation electrode, and the control module 210 can determine whether it is an engineering electrode through a variety of methods such as the access signal of the engineering electrode, the model of the engineering electrode or the verification code. It can be understood that the radiofrequency ablation device can calculate the life of the ablation electrode based on the system time, and the radiofrequency ablation device does not include the network time, so the time can only be set when it is turned on for the first time, and the time setting authority for other situations is not open to the user.

[0131] In some embodiments, the detection of whether the real-time clock is accurate can be achieved through the RTC chip reading function using a communication interface driver.

[0132] In some embodiments, detecting whether serial port communication is normal may be achieved through a serial port driver.

[0133] In some embodiments, to detect whether the power supply is normal, the analog-to-digital converter (ADC) of the microcontroller unit can be used to monitor changes in the power supply voltage or current to determine whether the power supply is normal; for example, whether the voltage is 3.3V, 5V, 12V, etc.

[0134] In some embodiments, the detection of whether the reading and writing of the memory is normal can be realized by the IIC (Inter-Integrated Circuit) interface driver of the memory. Exemplarily, when the memory 430 is an electrically erasable programmable read-only memory, the detection of whether the reading and writing of the memory is normal can be performed by performing read and write operations on the EEPROM through the IIC interface driver to verify whether the data is correct.

[0135] In some embodiments, detecting whether the function of the radiofrequency ablation device is normal may also include detecting the function and initialization of the touch screen. The function of the touch screen may include setting the touch sensitivity of the touch screen.

[0136] In some embodiments, initialization refers to the control module detecting and identifying the external device and establishing communication with it after the radiofrequency ablation device is turned on. Through initialization, the control module can correctly perform data exchange and control operations with the external device.

[0137] In some embodiments, detecting whether the functions of the radiofrequency ablation instrument are normal may further include interrupting transaction processing. In some embodiments, interrupting transaction processing includes: identifying an interrupt number in response to an interrupt signal at an interrupt entry; the interrupt number identification includes a serial communication interrupt task, a timer interrupt task, and a short-circuit detection interrupt task; and returning to an interrupt exit in response to the completion of the interrupt transaction processing.

[0138] Interrupt transaction processing refers to that when the control module receives an event or request with a higher priority during the execution of certain tasks, it pauses the current task and turns to process the event or request. In some embodiments, interrupt transaction processing may occur at various stages. For example, it may occur at the stage of normally powering on the radiofrequency ablation instrument and detecting the functions of the radiofrequency ablation instrument, or it may occur at the stage of ablating the target tissue.

[0139] Step 520, in response to all functions of the radiofrequency ablation instrument being normal, detect whether the ablation electrode connected to the radiofrequency ablation instrument is available.

[0140] In some embodiments, the control module 210 may verify the ablation electrode based on the electrode information obtained by the information reading module; in response to the ablation electrode being unavailable, give a prompt. In some embodiments, in response to the ablation electrode being available, the control module 210 displays the electrode type and electrode life information of the ablation electrode and requests confirmation.

[0141] Electrode information refers to information related to the ablation electrode. In some embodiments, the electrode information may include the chip model of the ablation electrode, encryption information, electrode type, model, electrode expiration date information, electrode life information, data check code, etc. Among them, the encryption information is information used to verify whether the electrode is a legal electrode. The first use time refers to the time when the ablation electrode is first connected to the radiofrequency ablation instrument. The data check code can be used to verify that the data obtained by the input / output module is consistent with the data in the storage chip to determine whether the ablation electrode is legal. The data check code may include a CRC check code.

[0142] In some embodiments, the ablation electrode being available includes: the ablation electrode is not an illegal electrode, is within the expiration date, and the remaining number of uses or the remaining ablation duration of the ablation electrode is not 0. An illegal electrode refers to an electrode that cannot be matched or supported by the radiofrequency ablation instrument.

[0143] In some embodiments, the expiration date includes the expiration date on the ablation electrode package and a preset usage time range after the first use after unpacking. The expiration date on the ablation electrode package can be obtained from the information on the package, including the production date and the production shelf life.

[0144] The production date refers to the date when the ablation electrode leaves the factory. The production shelf life refers to the time from the production date until the ablation electrode fails. The preset usage time range can reflect the interval time after the last use of the ablation electrode until it can be used for ablation again. For example, ablation electrode A is unsealed, and after using it to complete the ablation of the target tissue, the remaining number of uses is not zero, and the ablation end time is 10:00 am on December 1st. To ensure aseptic operation, the preset usage time range can be set to 4 hours (or 2 hours, 3 hours, 5 hours, 6 hours, 8 hours, etc.). If electrode A is used for ablation again at 1:00 pm on December 1st, the time interval between the two uses is 3 hours, which is less than 4 hours, so it is within the preset usage time range; if it is used for ablation again at 3:00 pm on December 1st, the time interval between the two uses is 5 hours, which is greater than 4 hours, so it exceeds the preset usage time range. In some embodiments, the electrode expiration date may also include the first use time and the preset usage time range after the first use. The first use time refers to the time when the ablation electrode is first connected to the radiofrequency ablation instrument. The preset usage time range after the first use refers to the interval time after the electrode is first unsealed until it can be used for ablation again.

[0145] In some embodiments, the electrode life information includes the number of times the electrode has been used and the remaining number of uses, or the cumulative ablation duration and the remaining ablation duration. In some embodiments, the number of times the electrode has been used and the remaining number of uses, or the cumulative ablation duration and the remaining ablation duration, can be actively updated and written into the storage chip of the ablation electrode 120 by the radiofrequency ablation instrument 100 after each use of the ablation electrode. In some embodiments, in response to the end of each use of the ablation electrode, the cumulative ablation duration in the storage chip can be increased by the duration of a single use of the ablation electrode, and the remaining ablation duration can be decreased by the duration of a single use of the ablation electrode.

[0146] In some embodiments, the radiofrequency ablation instrument 100 can determine whether the ablation electrode is available in multiple ways. For example, the control module 210 can verify the encryption information of the ablation electrode. If the encryption information is correct, it is determined that the ablation electrode is an authorized and legal electrode. At the same time, it is checked whether the ablation electrode has exceeded the expiration date (production shelf life and preset usage time range) and the remaining number of uses or the remaining ablation duration. If the ablation electrode is within the shelf life, does not exceed the preset usage time range, and the remaining number of uses or the remaining ablation duration is not zero, it is determined that the ablation electrode is available. Among them, the encryption information can be constructed in multiple ways, such as symmetric encryption, asymmetric encryption, etc. Exemplarily, the encryption information of the ablation electrode is constructed by symmetric encryption. When the control module receives the encryption information, it can decrypt the encryption information through the key. If it cannot be decrypted or the decrypted information is incorrect, the control module can determine that the ablation electrode is an illegal electrode and control the output module (such as output module 470) to output a warning message, such as "The electrode is illegal, please replace the electrode".

[0147] In some embodiments, the radiofrequency ablation instrument may first detect the connection status of the ablation electrode, and in response to the ablation electrode 120 not being connected to the radiofrequency ablation instrument, send a prompt message to the output module. The output module may output and display the prompt message to the user (such as by displaying the prompt message on the display interface of the display screen), and the prompt message may include, for example, "electrode not connected".

[0148] In some embodiments, in response to determining that the ablation electrode is unavailable, a prompt may be given through the output module so that the user can replace the ablation electrode. For example, the prompt message may include "electrode not authorized", "electrode life ended", etc. In some embodiments, the availability of the replaced ablation electrode may continue to be detected until the connected ablation electrode is available.

[0149] In some embodiments, the reasons for the unavailability of the ablation electrode are different, and the content of the prompt is different. For example, if the legality verification of the ablation electrode fails, "electrode not authorized", "electrode is illegal, please replace the electrode" may be prompted; if the electrode is not within the valid period, it may be prompted separately according to the reasons for not being within the valid period. For example, "exceeding the preset time range for the first use after unpacking", "electrode has expired", and when the remaining number of uses or the remaining ablatable duration of the ablation electrode is insufficient, "electrode available life is 0" may be prompted, etc.

[0150] In some embodiments, in response to the ablation electrode being available, the control module 210 may send electrode information to the output module so that the output module outputs and displays the electrode information for the user to confirm. Figure 7b is an exemplary schematic diagram of an electrode information confirmation interface shown in some embodiments of this specification, such as Figure 7b shown, the electrode type and electrode life can be displayed on the interface. The electrode type includes an electrode icon, and different electrode icons can be displayed according to different electrode types; the electrode life can include the number of times used and the remaining number of uses; when the information is correct, the user can click the "confirm" button in the figure to confirm; when there is an error, the electrode can be replaced or the after-sales maintenance personnel can be requested to handle it, and the after-sales maintenance personnel can correct and rewrite the error information stored in the electrode.

[0151] In some embodiments, the prompt message or warning message can be displayed on the display screen, or the prompt message or warning message can be issued by means of sound, vibration, etc.

[0152] In some embodiments, the information reading module can obtain the electrode information of the ablation electrode and transmit the electrode information to the control module to determine whether the ablation electrode is available.

[0153] Step 530, in response to the ablation electrode being available and the electrode information having been confirmed, enter the parameter setting interface.

[0154] In some embodiments, in response to all functions of the radiofrequency ablation instrument being normal, the ablation electrode is available and confirmed by the user (such as the user has confirmed the electrode type, etc.), the parameter setting interface can be entered (such as Figure 7a the interface shown) so that the user can set the target parameters.

[0155] Figure 7a FIG. is an exemplary schematic diagram of the parameter setting interface shown in some embodiments of the present specification. In some embodiments, as Figure 7a shown, the parameter setting interface 700 may include the accessory connection status, treatment time, radiofrequency power, and electrode life information.

[0156] Among them, the accessory connection status may include an electrode icon and a foot switch icon. The electrode icon includes the electrode type (such as a ciliary body electrode, a trabecular meshwork electrode, or an iris electrode) and an electrode legend. In some embodiments, when the ablation electrode and / or the foot switch is not connected, clicking Confirm (such as Figure 7b shown) will also enter the parameter setting interface to facilitate demonstration operations or teaching; at this time, in response to the ablation electrode not being connected, the electrode icon can be displayed in gray, and in response to the foot switch not being connected, the foot switch icon can be displayed in gray.

[0157] The treatment time (i.e., the output duration of the radiofrequency energy) may include time information, and the time information includes the treatment time duration and an adjustment time button. The length of the time for treating the target tissue can be set by adjusting the time button.

[0158] The radiofrequency power (i.e., the output power of the radiofrequency energy) may include power information, and the power information includes the magnitude of the radiofrequency power and an adjustment power button. The magnitude of the output power of the radiofrequency energy when ablating the target tissue can be set by adjusting the power button.

[0159] The electrode life information may include the number of times the current electrode has been used and the remaining number of times it can be used, or the cumulative ablation duration and the remaining ablation duration.

[0160] Step 540, in response to the ablation electrode being available, before or after the electrode information is confirmed, detect whether the foot switch is connected.

[0161] In some embodiments, the ocular radiofrequency ablation instrument further includes a foot switch interface for connecting the foot switch. In some embodiments, the control module is further configured to: in response to the electrode type and electrode life information of the ablation electrode being confirmed before or after, detect whether the foot switch is connected; in response to the foot switch not being connected, give a prompt; in response to the foot switch being connected or the user clicking the confirmation button in the prompt interface, enter the parameter setting interface.

[0162] In some embodiments, when the ablation electrode is available and before the user confirms the electrode information or makes the confirmation, it is possible to detect whether the foot switch is connected. If it is not connected, a prompt message "Foot switch not connected" is output on the display interface. At this time, the user can click the "Confirm" button on the interface or connect the foot switch to enter the next step, such as entering Figure 7a the parameter setting interface shown. It should be noted that the connection order of the foot switch and the ablation electrode is not restricted. In some embodiments, it is possible to first detect whether the foot switch is connected and then detect whether the ablation electrode is connected, or detect whether the foot switch and the ablation electrode are connected simultaneously, or first detect whether the ablation electrode is connected and then detect whether the foot switch is connected. In some embodiments, if the foot switch is already connected, the startup state of the foot switch can be monitored in real time. In some embodiments, after the electrode information is confirmed, it is possible to enter Figure 7a the parameter setting interface shown. Before or after this, it is possible to detect whether the foot switch is connected.

[0163] Step 550, in response to the foot switch being connected and based on the target parameters recommended in the parameter setting interface or set in the parameter setting interface, control the output or stop of the radio frequency energy.

[0164] The target parameters refer to the determined ablation parameters. The ablation parameters refer to the parameters used when performing radiofrequency ablation on the target tissue. In some embodiments, the ablation parameters may include the output power of the radiofrequency signal (abbreviated as radiofrequency power), treatment time, treatment mode, etc.

[0165] For different ocular target tissues targeted by radiofrequency ablation, the electrode types of the electrodes used are different. For example, the types of electrodes may include ciliary body electrodes, trabecular meshwork electrodes, or iris electrodes, etc. When the target tissue is the ciliary body, the electrode used is the ciliary body electrode. When the target tissue is the trabecular meshwork, the type of electrode used should be the trabecular meshwork electrode. When the target tissue is the iris, an iris electrode is adopted. For different target tissues, considering the morphology, position, and operability of the target tissue, the main difference in the electrodes lies in the morphological structure of the electrode needles. For example, one end of the electrode needle inserted into the target tissue is a straight needle, a straight tip of a curved needle, or a curved tip of a curved needle, etc.

[0166] In some embodiments, the radiofrequency ablation instrument 100 can automatically detect, identify, display the electrode type of the ablation electrode connected to the radiofrequency ablation host, and request the user to confirm (see Figure 7b ). For example, the control module 210 can, based on the electrode type of the ablation electrode automatically detected and identified by the information reading module 240 and connected to the radiofrequency ablation instrument 100, without the operator having to select, so as to improve safety and avoid the electrode type selected by the operator being inconsistent with the actually used electrode.

[0167] The output power of the radio frequency signal reflects the power of radiofrequency ablation. In some embodiments, the output power may be in the range of 0.5 - 50w. For example, the output power may be any value within 0.5 - 9.9w. In some embodiments, the output power of the radio frequency signal can be obtained in various ways. For example, in response to the ablation electrode being available, the radiofrequency ablation instrument can provide multiple alternative output powers for the user to select according to the electrode type. In response to the user selecting one of the alternative output powers through a preset input method, the selected alternative output power is determined as the output power of the radio frequency signal. For more descriptions on determining the availability of the ablation electrode, reference can be made to the above related descriptions.

[0168] In some embodiments, the alternative output powers can be preset based on historical experience. For example, the alternative output powers can be determined based on the output powers of the radio frequency signals used in the completed radiofrequency ablation procedures. In some embodiments, the alternative output powers can be a range value (such as 0.5 - 9.9w), or multiple specific values.

[0169] The treatment time refers to the treatment time at each position after penetration during radiofrequency ablation of the target tissue. In some embodiments, the treatment time can be obtained in various ways. For example, in response to the ablation electrode being available, the control module 210 can provide multiple alternative treatment times according to the electrode type and control the output module 470 to display them on the display interface for the user to select. When the user selects one of the alternative treatment times through a preset input method, the selected alternative treatment time is determined as the treatment time.

[0170] In some embodiments, the alternative treatment times can be preset based on historical experience. For example, the alternative treatment times can be determined based on the treatment times used in the completed radiofrequency ablation procedures. In some embodiments, the alternative treatment times can be a time range (such as 1 - 20s, 10 - 100s, etc.), or multiple specific time values.

[0171] In some embodiments, the treatment mode can include a continuous treatment mode and a single - treatment mode.

[0172] The continuous treatment mode means that after the tip of the electrode needle enters the target tissue, multiple releases of radio frequency energy can be performed at the same treatment position, that is, intermittently released, and the corresponding treatment time is the accumulation of the multiple release times. Correspondingly, the single - treatment mode means that each time the tip of the electrode needle enters the target tissue, one release of radio frequency energy is performed, and the corresponding treatment time is the release time of this radio frequency energy.

[0173] In some embodiments, the treatment information can include the treated time, the output power of the radio frequency signal, the real - time impedance, etc.

[0174] The treated time refers to the time during which radiofrequency ablation has been performed at a radiofrequency ablation location. In some embodiments, the control module 210 can determine the treated time through a timer and output it through the output module 470 (such as the display screen 1010).

[0175] The real-time impedance can be used to characterize the magnitude of the real-time impedance of the target tissue. For more descriptions about the real-time impedance, reference can be made to the relevant descriptions above.

[0176] In some embodiments, in response to the electrode type and electrode life information of the ablation electrode being confirmed by the user, the control module can make recommendations based on the target parameters. In some embodiments, the control module can determine candidate ablation parameters based on the electrode type of the ablation electrode, and determine the template parameters based on the input information of the user for the candidate ablation parameters; the candidate ablation parameters include parameter values or parameter ranges related to the recommended target parameters, so as to improve the safety of treatment. In some embodiments, the target parameters include the output duration and output power of the radiofrequency energy.

[0177] The candidate ablation parameters refer to the recommended ablation parameters (such as alternative treatment time, alternative radiofrequency power). In some embodiments, the candidate ablation parameters can include the parameter values or parameter ranges of the recommended target ablation parameters. The input information can include the adjustment information or confirmation information of the user for the recommended parameter values, or the target parameters input by the user based on the recommended parameter ranges. In some embodiments, in response to receiving the confirmation information of the user for the electrode, the control module can determine the parameter value corresponding to the confirmation information as the target parameter.

[0178] Exemplarily, in response to the ablation electrode being available, the control module 210 can recommend the parameter values / parameter ranges of the treatment time, the output power of the radiofrequency signal, or the treatment mode according to the electrode type of the ablation electrode, and control the output module to display them on the display interface for the user to adjust and confirm the parameter values or input the parameters within the recommended parameter ranges, and use the confirmed parameter values as the determined target parameters, or use the parameters within the recommended parameter ranges input by the user as the confirmed target parameters. Exemplarily, the parameter values related to the target parameters or the parameter ranges optional for the user may not be displayed on the display interface, and the target parameters are limited within the parameter ranges by limiting the adjustment range of the user.

[0179] In some embodiments, before determining the target parameters, the state of the activation switch can be monitored in real time. A prompt is given in response to the abnormal activation of the activation switch. For example, in response to the activation switch being activated without meeting the first preset condition, the display interface can display a reminder such as "Please release the activation switch". The first preset condition includes that all functions of the radiofrequency ablation instrument are normal, the foot switch is connected and the connected ablation electrode is available, and the target parameters have been determined. For the descriptions of the first preset condition and the second preset condition, reference can be made to the above and its relevant descriptions.

[0180] In some embodiments, in response to the activation switch being started when a first preset condition is met (all functions of the radiofrequency ablation instrument are normal, the foot switch is connected and the connected ablation electrode is available, and the target parameters have been determined), it is determined whether the ablation electrode has reached the target position. In some embodiments, when the ablation electrode reaches the target position, in response to the foot switch being started, the output of the radiofrequency energy is controlled based on the target parameters.

[0181] In some embodiments, in response to the user stepping on the foot switch for more than a preset time, the control module 210 can control the radiofrequency module 220 to start outputting radiofrequency energy. The preset time can include 1 second, etc.

[0182] In some embodiments, in response to the impedance information reaching a preset value or the ablation electrode reaching a predetermined depth, it is determined that the ablation electrode has reached the target position. The control module can determine whether the ablation electrode has reached the target position of the eye based on the impedance information detected by the impedance detection module. For example, if the impedance information is detected by the impedance detection module, that is, the impedance information is not 0 or within a preset impedance threshold range, it can be determined that the ablation electrode has reached the target position, and the output of the radiofrequency energy is controlled. In some embodiments, the impedance information detected by the impedance detection module can be obtained. If the impedance information reaches the preset value, it is determined that the ablation electrode has reached the target position; otherwise, it is determined that the target position has not been reached. Among them, the preset value can be determined according to the actual situation. For example, the preset values corresponding to different target tissue positions can be different. In some embodiments, the control module can determine whether the ablation electrode has reached the target position by detecting whether the depth reached by the ablation electrode meets the predetermined depth. For example, an electrode needle with a tip on the ablation electrode protrudes a preset distance. When the tip of the electrode needle is fully inserted into the eye, it can be regarded as the ablation electrode reaching the predetermined depth. The preset distance can be adjusted according to the actual situation. For example, the preset distance can be adjusted by adjusting the protruding length of the tip, that is, adjusting the predetermined depth.

[0183] In some embodiments, during the ablation of the target tissue, the impedance information of the target tissue can be monitored in real time, and when the impedance mutates, the output of the radiofrequency energy is stopped. It can be understood that when the radiofrequency ablation is completed, the impedance of the target tissue will mutate, and the impedance mutation can indicate the completion of the radiofrequency treatment. Specifically, the mutation threshold can be determined according to different target tissues, such as the impedance being greater than a certain value. Or, the mutation of the impedance can also be judged by the change of the impedance change amount (difference) collected multiple times. For example, the change of the impedance tends to zero to form an inflection point, or the change increment of the impedance exceeds the preset value.

[0184] In some embodiments, during the ablation of the target tissue, in response to the foot switch being released or the timing reaching a preset time threshold, the radiofrequency ablation instrument automatically stops the output of the radiofrequency energy.

[0185] In some embodiments, the radiofrequency ablation instrument can be used in a continuous output mode and a timed output mode. Among them, the continuous output mode or the timed output mode can reflect the output manner of radiofrequency energy.

[0186] The continuous output mode means that in response to the user activating the foot switch, the control module 210 controls the radiofrequency module 220 to start outputting radiofrequency energy, and in response to the user closing the foot switch, the control module 210 controls the radiofrequency module 220 to stop outputting radiofrequency energy.

[0187] The timed output mode means that in response to the user activating the foot switch, the control module 210 controls the radiofrequency module 220 to start outputting radiofrequency energy and starts timing. When the timing reaches a preset time threshold, the output of radiofrequency energy automatically stops. In some embodiments, in the timed output mode, in response to the user closing the foot switch when the timing has not reached the preset time threshold, the control module 210 can control the radiofrequency module 220 to stop outputting radiofrequency energy. In some embodiments, the preset time threshold can be the treatment time or less than the treatment time.

[0188] In some embodiments, when the timing reaches the preset time threshold but the foot switch is not released, the control module 210 can send a warning message to the output module to output the warning message. The warning message can include, for example, "Please release the foot switch".

[0189] In some embodiments, in the continuous output mode or the timed output mode, each time the output of radiofrequency energy stops, the control module can record the usage information of the electrode and update the electrode life information of the currently used electrode.

[0190] In some embodiments, during the ablation of the target tissue, in response to the activation switch being turned off, the radiofrequency ablation instrument can stop the output of radiofrequency energy. The activation switch being turned off can be when the target tissue does not require further treatment and the user releases the activation switch; or when an abnormality occurs during the output of radiofrequency energy and the user presses the activation switch.

[0191] Figure 8 It is an exemplary schematic diagram of a treatment interface shown in some embodiments of this specification.

[0192] In some embodiments, in response to the activation switch being started when meeting the first preset condition, the treatment interface is entered. For more content of the first preset condition, refer to the above. In some embodiments, after entering ablation (such as starting to output radiofrequency energy), treatment information can be displayed on the display interface. For example, when the activation switch is started when meeting the first preset condition and ablation of the target tissue begins, it can enter Figure 8The treatment interface 800 shown. In some embodiments, the information displayed on the treatment interface 800 includes at least one of electrode status, electrode type, electrode life information, output duration of radiofrequency energy, real-time treatment time, output power of radiofrequency energy, and impedance information. Preferably, the information displayed on the treatment interface includes electrode status, electrode type, electrode life information, output duration of radiofrequency energy, output power of radiofrequency energy, real-time treatment time, and real-time impedance.

[0193] The electrode status refers to the status of whether the ablation electrode is connected to the radiofrequency ablation instrument. For example, a colored electrode icon indicates connection, and a gray electrode icon indicates non-connection. The electrode type includes a ciliary body electrode, a trabecular meshwork electrode, or an iris electrode.

[0194] For the output duration of radiofrequency energy (i.e., the set treatment time) and the output power of radiofrequency energy (i.e., the set radiofrequency power), refer to the above content. The real-time treatment time, also known as the treated time, refers to the length of time that has been treated currently. For example, the treatment time is 20 seconds and the treated time is 2 seconds.

[0195] The output power of radiofrequency energy is the power value that the radiofrequency signal needs to meet when treating the target tissue (such as the radiofrequency power set in the Figure 7a shown interface).

[0196] The real-time impedance refers to the current impedance value of the target tissue, such as the impedance value monitored by the voltage-current feedback unit.

[0197] In some embodiments, the status of the foot switch can be monitored in real time. If the foot switch is activated in a non-treatment interface (i.e., activated before entering the Figure 8 shown interface), a prompt is given.

[0198] In some embodiments, in response to the end of radiofrequency ablation, the radiofrequency ablation instrument can detect the remaining number of uses of the ablation electrode. If the remaining number of uses is not 0, information such as the first use time, the number of times used, and the remaining number of uses of the ablation electrode can be actively written into the ablation electrode (such as the storage chip of the ablation electrode).

[0199] In some embodiments, the process of the control module controlling the output or stop of radiofrequency energy further includes: when the impedance mutates, controlling the radiofrequency energy to stop output; or, automatically stopping the output of radiofrequency energy in response to the release of the foot switch, or the closing of the activation switch, or when the timing reaches the output duration of radiofrequency energy. For this part of the content, refer to Figure 9 .

[0200] Figure 9 is an exemplary flowchart of the control method according to some other embodiments of this specification. As Figure 9As shown, in some embodiments, process 900 may include the following steps, which may be executed by a control module.

[0201] Step 910, in response to the radiofrequency ablation instrument being powered on, detect whether the functions of the radiofrequency ablation instrument are normal.

[0202] Combined with the above, before powering on, preparations before powering on can be carried out first, such as connecting the power supply, connecting the foot switch, etc.; after powering on, it can be detected whether the radiofrequency ablation instrument is powered on normally (such as whether the system is powered on, whether the system power-on button starts normally, whether it can normally enter the power-on screen, etc.). For more details on detecting whether the functions of the radiofrequency ablation instrument are normal, refer to Figure 5 as described in, which will not be elaborated here.

[0203] Step 920, in response to the functions of the radiofrequency ablation instrument being normal, determine the availability of the ablation electrode.

[0204] After the functions of the radiofrequency ablation instrument are normal (also known as passing the self-check), the user can connect the ablation electrode. The radiofrequency ablation instrument can obtain the electrode information of the connected ablation electrode. For example, the radiofrequency ablation instrument can obtain electrode information such as the electrode type, encryption information, and data check code of the connected ablation electrode through the information reading module 240, and transmit the electrode information to the control module 210. In some embodiments, the control module 210 can determine whether the ablation electrode is available based on the electrode information. For example, the control module 210 can determine whether the ablation electrode is an illegal electrode based on the encryption information and electrode model, determine whether it exceeds the preset usage time range based on the first use time of the electrode, and determine whether the service life meets the requirements based on the remaining number of uses of the electrode, etc. In response to determining that the ablation electrode is unavailable, the control module 210 can control the output module to output a prompt message to remind the user to replace the ablation electrode. For more details, refer to Figure 5 as described in, which will not be elaborated here.

[0205] Step 930, in response to the ablation electrode being available, set the target parameters.

[0206] In some embodiments, in response to the ablation electrode being available, the control module 210 can control the output module to output the electrode information for the user to confirm. When the user confirms the electrode information, the parameter setting page (such as the interface shown in Figure 7a ) can be entered to set the target parameters. In some embodiments, the user can actively input the target parameters in the parameter setting interface. In some embodiments, recommended candidate ablation parameters can be displayed in the parameter setting interface, and the target parameters can be determined based on the user's feedback on the candidate ablation parameters. For example, the target parameters are determined based on the user's adjustment information or confirmation information of the recommended parameter values, or the target parameters input by the user based on the recommended parameter range.

[0207] After determining the target parameters, treatment can begin. Referring to the above, when all functions of the radiofrequency ablation instrument are normal, the foot switch is connected and the connected ablation electrode is available, and the target parameters have been determined, it can be started in response to activating the switch, and it is determined whether the ablation electrode has reached the target position; if it has reached the target position, the output of radiofrequency energy is started in response to the foot switch to perform radiofrequency ablation on the target tissue.

[0208] Step 940, in response to impedance mutation, releasing the foot switch, or releasing the activation switch, or the treatment time reaching a preset time threshold, the radiofrequency ablation instrument can stop the output of radiofrequency energy.

[0209] In some embodiments, as Figure 9 shown, during the ablation of the target tissue, in response to impedance mutation, releasing the foot switch, or releasing the activation switch, or the treatment time reaching a preset time threshold (such as the timing reaching the output duration of the set radiofrequency energy), the radiofrequency ablation instrument can stop the output of radiofrequency energy.

[0210] In some embodiments, as Figure 9 shown, in response to the target tissue not requiring further treatment and the user releasing the activation switch, the entire radiofrequency ablation process ends. If further treatment is required, the target tissue can be ablated again by restarting the foot switch.

[0211] In some embodiments, in response to an abnormality occurring during the output of radiofrequency energy and the user pressing the activation switch, the radiofrequency ablation instrument can stop the output of radiofrequency energy. In some embodiments, in response to the end of radiofrequency ablation, the radiofrequency ablation instrument can write back the electrode information of the ablation electrode to the storage chip of the ablation electrode.

[0212] It should be noted that the above descriptions of processes 500 and 900 are only for illustration and explanation, and do not limit the scope of application of this specification. For those skilled in the art, various modifications and changes can be made to the process of ocular radiofrequency ablation under the guidance of this specification. However, these modifications and changes are still within the scope of this specification.

[0213] In some embodiments, the radiofrequency ablation instrument 100 may further include a power filter 410, a power module 420, an audio device 440, a display screen 1010, a rotating handle 1020, a cooling fan, a main board shield, an activation switch 1030, and related interfaces. The related interfaces may include a connector socket (such as connector socket 1040), a power switch and interface, an equipotential interface, and a foot switch interface.

[0214] The activation switch 1030 can be a push-button or rotary button. For more information about the power filter 410, power module 420, audio device 440, and display screen, please refer to the above, and details will not be repeated here.

[0215] In some embodiments, the rotation handle 1020 can be installed on the upper part of the radiofrequency ablation instrument 100 for holding the radiofrequency ablation instrument. In some embodiments, the rotation handle 1020 can include a handle protrusion, a handle, a rotating shaft, and a handle grip. The handle protrusion can enable the rotation handle to slowly fall, avoiding collision with the radiofrequency ablation instrument 100. The rotation handle 1020 can be connected to the radiofrequency ablation instrument 100 through the rotating shaft and rotate along the rotating shaft (such as rotating 0 - 180 degrees, 0 - 90 degrees, 0 - 160 degrees, etc.). The handle grip refers to a structure that facilitates the operator to change from the state where the handle fits the radiofrequency ablation instrument to the picking-up state. Exemplarily, the handle grip can be a groove or protrusion on the handle.

[0216] In some embodiments, the cooling fan can be provided on one side of the radiofrequency ablation instrument 100, and a plurality of heat dissipation holes are formed on the housing of the radiofrequency ablation instrument 100 near the cooling fan to discharge the heat generated by the radiofrequency ablation instrument 100. In some embodiments, the cooling fan can also be other structures for cooling or discharging heat.

[0217] In some embodiments, the main board shield can be provided inside the housing of the radiofrequency ablation instrument 100 to shield electromagnetic interference from the outside to the inside of the radiofrequency ablation instrument or from the inside of the radiofrequency ablation instrument to the outside. In some embodiments, the material of the main board shield can be a conductive material, such as metal or plastic with a conductive coating. In some embodiments, the main board shield can be made of metal material, which can shield interference and at the same time carry the power filter 410, power module 420, audio device 440 (such as a speaker), and the cooling fan, providing a stable installation support force for them.

[0218] In some embodiments, the connector socket can be set on the side where the display screen of the radiofrequency ablation instrument 100 is located (also called the front side) for connecting the connector to realize the connection between the ablation electrode 120 and the radiofrequency ablation instrument 100. By setting the connector interface on the side where the display screen of the radiofrequency ablation instrument is located, it is convenient for the user to view the information displayed on the display screen (such as electrode information, treatment information, warning information, etc.) during the ablation process.

[0219] In some embodiments, the power switch and interface, the equipotential interface, and the foot switch interface can be set on the back of the radiofrequency ablation instrument 100 (the side opposite to the display screen). The power switch and interface are used for the radiofrequency ablation instrument 100 to connect to an external power supply. The equipotential interface is used to ground the radiofrequency ablation instrument 100 when there is no grounding socket to ensure electrical safety. The foot switch interface is used for connecting the foot switch to the radiofrequency ablation instrument 100.

[0220] By arranging the power switch, interfaces, equipotential interfaces, and foot switch interfaces on the back of the radiofrequency ablation instrument, the aesthetics of the radiofrequency ablation instrument can be improved while in use, and at the same time, the devices connected to the interfaces can be prevented from affecting the user's viewing of the display information on the display screen.

[0221] In some embodiments, the radiofrequency ablation instrument 100 may further include a fixing structure. The fixing structure is used to fixedly or detachably connect the radiofrequency ablation instrument 100 to a trolley (as Figure 10 shown). The form of the fixing structure can be various. In some embodiments, the fixing structure may include a locking member and a locking hole. The locking member rotates within the locking hole to fix or detach the radiofrequency ablation instrument. The locking member and the locking hole can be respectively arranged at the bottom of the radiofrequency ablation instrument and on the trolley. The form of the fixing structure can also be other structures that can fix the radiofrequency ablation instrument 100 to the trolley. For example, the fixing structure is a snap structure, including an elastic member and a groove, which are respectively arranged on the radiofrequency ablation instrument 100 and the trolley, and are fixed through the deformation of the elastic member and the groove.

[0222] In some embodiments, the radiofrequency ablation instrument 100 can be fixedly installed or detachably installed on a trolley. Figure 10 is an exemplary schematic diagram of the combination of an eye radiofrequency ablation instrument and a trolley according to some embodiments of this specification. In some embodiments, as Figure 10 shown, the trolley 1200 is provided with a platform. After the radiofrequency ablation instrument 100 is combined with the trolley, the radiofrequency ablation instrument 100 is fixed at the platform of the trolley, facilitating the movement and operation of the radiofrequency ablation instrument 100.

[0223] The trolley is used to carry the radiofrequency ablation instrument 100. The trolley can be a separate device. When the radiofrequency ablation instrument 100 is installed on the trolley, the radiofrequency ablation instrument 100 can be dragged to move by moving the trolley (such as moving to the position where the operator is located).

[0224] In some embodiments, as Figure 10 shown, the trolley 1200 may include a front handle 1210, a rear push handle 1220, a storage box 1230, a cable hook, a vehicle body, and casters, etc.

[0225] The front handle 1210 can be arranged at the front end of the trolley to pull the trolley, thereby driving the radiofrequency ablation instrument 100 installed thereon to move. The rear push handle 1220 can be arranged at the rear end of the trolley to push the trolley to move. The structures of the front handle and the rear push handle can be ring-shaped structures for holding by hand. The front end of the trolley can refer to the side where the display interface of the radiofrequency ablation instrument 100 is located after the radiofrequency ablation instrument 100 is installed on the trolley; correspondingly, the rear end refers to the side opposite to the front end. The cable hook refers to a component that facilitates the storage of cables.

[0226] The storage box 1230 can be arranged at the bottom of the rear end, the front end or the side of the trolley for placing items (such as cables, documents, masks, gloves, patient-carrying items, etc.). The structure of the cable hook can include a wire-hanging shaft and a baffle; the cable is wound around the wire-hanging shaft, and the baffle is used to prevent the cable from falling. The body refers to the main part of the trolley, and the body can provide a stable center of gravity for the trolley and support the radiofrequency ablation instrument, etc. The casters refer to the structures that provide the moving function for the trolley. The casters can include fixed casters, brake casters and universal casters, etc. In some embodiments, the front casters can be 2 universal casters, and the rear casters can be 2 brake casters.

[0227] It should be noted that the above descriptions of the radiofrequency ablation instrument and the trolley are only for illustration and explanation, and do not limit the scope of application of this specification. For those skilled in the art, various modifications and changes can be made to the structure of the radiofrequency ablation instrument 100 and / or the trolley 1200 under the guidance of this specification. However, these modifications and changes are still within the scope of this specification.

[0228] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are proposed in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0229] At the same time, this specification uses specific words to describe the embodiments of this specification. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined.

[0230] In addition, unless clearly stated in the claims, the order of the processing elements and sequences, the use of numerical and alphabetical characters, or the use of other names described in this specification are not used to limit the order of the processes and methods in this specification. Although some currently useful embodiments of the invention are discussed through various examples in the above disclosure, it should be understood that such details are only for illustrative purposes. The appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that conform to the essence and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only through software solutions, such as installing the described system on existing servers or mobile devices.

[0231] Similarly, it should be noted that, in order to simplify the presentation of the disclosure in this specification and thus help the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this specification, sometimes multiple features are merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than those mentioned in the claims. In fact, the features of the embodiments are fewer than all the features of the individual embodiments disclosed above.

[0232] In some embodiments, numbers are used to describe the components and the quantity of attributes. It should be understood that such numbers used to describe the embodiments are modified by the modifiers "about", "approximate", or "substantially" in some examples. Unless otherwise stated, "about", "approximate", or "substantially" indicate that the stated numbers allow a variation of ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, and such approximate values may change according to the characteristics required by individual embodiments. In some embodiments, the numerical parameters should consider the specified significant digits and adopt the method of retaining the general number of digits. Although the numerical ranges and parameters used to confirm the breadth of the scope in some embodiments of this specification are approximate values, in specific embodiments, such numerical settings are as precise as possible within the feasible range.

[0233] For each patent, patent application, patent application publication, and other materials cited in this specification, such as articles, books, specifications, publications, documents, etc., their entire contents are hereby incorporated into this specification by reference. Except for the application history documents that are inconsistent with or conflict with the content of this specification, and except for the documents that limit the broadest scope of the claims of this specification (currently or subsequently appended to this specification). It should be noted that if there are any inconsistencies or conflicts between the descriptions, definitions, and / or uses of terms in the supplementary materials of this specification and the content described in this specification, the descriptions, definitions, and / or uses of terms in this specification shall prevail.

[0234] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be regarded as consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly presented and described in this specification.

Claims

1. An ophthalmic radiofrequency ablation instrument, which is used to provide radiofrequency energy for an ablation electrode connected thereto, and is characterized in that, The radiofrequency ablation instrument includes a control module, a radiofrequency module, an impedance detection module, and an information reading module, where: The control module is used to communicate with the radiofrequency module, the impedance detection module, and the information reading module to control the radiofrequency ablation instrument to generate the radiofrequency energy; The radiofrequency module is used to generate radiofrequency energy based on the control instruction of the control module; The impedance detection module is used to detect the impedance information before, during, or after the output of the radiofrequency energy; The information reading module is used to obtain the electrode information of the ablation electrode when the ablation electrode is connected to the radiofrequency ablation instrument.

2. The ocular radiofrequency ablation instrument according to claim 1, characterized in that The radiofrequency module further includes a radiofrequency power supply, a radiofrequency signal source, and a power amplification module, where: The radiofrequency power supply is connected to the control module and the power amplification module, and is used to provide electrical energy for the generation of the radiofrequency energy; The radiofrequency signal source is connected to the control module and the power amplification module, and is used to generate a radiofrequency signal based on the control instruction; The power amplification module is used to generate an alternating current radiofrequency energy based on the radiofrequency signal and the electrical energy.

3. The ophthalmic radiofrequency ablation instrument according to claim 1, wherein The control module is further used for: Based on the electrode information obtained by the information reading module, verifying the ablation electrode; In response to the ablation electrode being unavailable, giving a prompt; or In response to the ablation electrode being available, displaying the electrode type and electrode life information of the ablation electrode and requesting confirmation.

4. The eye radiofrequency ablation instrument according to claim 3, characterized in that, The availability of the ablation electrode includes: the ablation electrode is not an illegal electrode, is within the expiration date, and the remaining number of uses or the remaining ablation duration of the ablation electrode is not 0.

5. The eye radiofrequency ablation instrument according to claim 4, wherein, The expiration date includes the expiration date on the packaging of the ablation electrode and the preset use time range after the first use after unpacking. The electrode life information includes the number of times the electrode has been used and the remaining number of uses, or the cumulative ablation duration and the remaining ablation duration.

6. The ophthalmic radiofrequency ablation instrument according to claim 3, wherein The eye radiofrequency ablation instrument further includes a foot switch interface for connecting a foot switch. The control module is further used for: In response to the confirmation of the electrode type and electrode life information of the ablation electrode, detecting whether the foot switch is connected; In response to the foot switch not being connected, giving a prompt; And In response to the foot switch being connected or the user clicking the confirmation button in the prompt interface, entering the parameter setting interface.

7. The eye radiofrequency ablation instrument according to claim 6, characterized in that The control module is further used for: In response to the confirmation of the electrode type and electrode life information of the ablation electrode by the user, making a target parameter recommendation; preferably, based on the electrode type of the ablation electrode, recommending the parameter values or the user-selectable parameter ranges related to the target parameters; preferably, the target parameters include the output duration and output power of the radiofrequency energy.

8. The ophthalmic radiofrequency ablation instrument according to claim 7, characterized in that, The eye radiofrequency ablation instrument further includes an activation switch. The control module is further used for: In response to the abnormal startup of the activation switch, giving a prompt; The abnormal startup of the activation switch includes: the activation switch starts when the first preset condition is not met. The first preset condition includes that all functions of the radiofrequency ablation instrument are normal, the foot switch is connected, the ablation electrode is available, and the target parameters are determined.

9. The eye radiofrequency ablation instrument according to claim 8, wherein, The control module is further used for: In response to the activation switch starting when the first preset condition is met, enter the treatment interface; The information displayed on the treatment interface includes at least one of electrode status, electrode type, electrode life information, output duration of radiofrequency energy, real-time treatment time, output power of radiofrequency energy, and impedance information; Preferably, the information displayed on the treatment interface includes electrode status, electrode type, electrode life information, output power of radiofrequency energy, output duration of radiofrequency energy, real-time treatment time, and real-time impedance.

10. The ophthalmic radiofrequency ablation instrument according to claim 9, characterized in that, The control module is further configured to: In response to the abnormal start of the foot switch, give a prompt; The abnormal start of the foot switch includes: the foot switch starts when the second preset condition is not met; the second preset condition includes the radiofrequency ablation device entering the treatment interface.

11. A control method for a radiofrequency ablation instrument as described in any one of claims 1 - 10, characterized in that, The method includes: In response to the power-on of the radiofrequency ablation device, detect whether the functions of the radiofrequency ablation device are normal; In response to all functions of the radiofrequency ablation device being normal, detect whether the ablation electrode connected to the radiofrequency ablation device is available; In response to the ablation electrode being available and the electrode information having been confirmed, enter the parameter setting interface; In response to the ablation electrode being available before or after the electrode information is confirmed, detect whether the foot switch is connected; In response to the foot switch being connected and based on the target parameters recommended on the parameter setting interface or set on the parameter setting interface, control the output or stop of radiofrequency energy.

12. The method according to claim 11, wherein Detecting whether the functions of the radiofrequency ablation device are normal includes at least one of the following: Detect whether the foot switch and / or activation switch start abnormally; Detect whether the status of the analog-to-digital converter of the radiofrequency ablation device is normal; Detect whether the magnitude of the radiofrequency output frequency is normal; Detect whether the real-time clock is accurate; Detect whether the serial communication is normal; Detect whether the power supply is normal; And Detect whether the reading and writing of the memory are normal.

13. The method according to claim 12, wherein The detecting whether the real-time clock is accurate includes: Compare the time of the real-time clock with the latest device record time. If the time of the real-time clock is before the device record time, determine that the real-time clock is inaccurate; and / or In response to the real-time clock being inaccurate, remind the after-sales maintenance personnel to adjust the time.

14. The method according to claim 11, wherein, The controlling the output or stop of radiofrequency energy based on the target parameters recommended on the parameter setting interface or set on the parameter setting interface further includes: In response to the activation switch starting when the first preset condition is met, determine whether the ablation electrode has reached the target position; In response to the impedance information reaching the preset value or the ablation electrode reaching the predetermined depth, determine that the ablation electrode has reached the target position; and When the ablation electrode reaches the target position, in response to the foot switch starting, control the output of radiofrequency energy based on the target parameters.

15. The method according to claim 14, wherein During the process of controlling the output or stop of radiofrequency energy, it further includes: when the impedance changes suddenly, control the radiofrequency energy to stop output; or, in response to the foot switch being released, or the activation switch being turned off, or the timing reaching the output duration of radiofrequency energy, automatically stop the output of radiofrequency energy.

16. A computer-readable storage medium storing computer instructions, which, when read by a computer, cause the computer to execute the control method according to any one of claims 11-15.

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