Ophthalmology radiofrequency ablation instrument

Abstract

The utility model provides an ophthalmology radiofrequency ablation instrument, which is used for providing radiofrequency energy for an ablation electrode connected with the radiofrequency ablation instrument, and comprises a control device used for controlling each component of the radiofrequency ablation instrument so as to control the radiofrequency ablation instrument to generate the radiofrequency energy; the radio frequency generator is connected with the control device and used for generating radio frequency energy based on a control instruction of the control device; the impedance detection device is connected with the ablation electrode and the control device, and is used for detecting impedance information before, in or after the radio frequency energy is output and transmitting the impedance information to the control device; the information reading unit is connected with the control device and used for obtaining electrode information of the ablation electrode and transmitting the electrode information to the control device when the ablation electrode is connected with the radio frequency ablation instrument.

Description

Technical Field

[0001] This specification relates to the field of medical devices, and in particular to an eye radiofrequency ablation device. Background Art

[0002] Radiofrequency ablation technology has been widely used in the medical field. In clinical applications, radiofrequency equipment mainly performs ablation through the thermal effect on the organism. When radiofrequency current flows through human tissue, the rapid change of the electromagnetic field causes the polarized water molecules in the tissue to move at high speed, generating heat (i.e., endogenous thermal effect), causing the water inside and outside the cells to evaporate, dry, shrink and fall off, resulting in aseptic necrosis, thereby achieving the purpose of treatment.

[0003] However, due to the small size of the eye tissue, higher requirements are placed on the radiofrequency ablation electrodes, ablation accuracy, clinical operability, and treatment safety. Currently, there is no mature radiofrequency ablation device for eye tissue.

[0004] Therefore, it is hoped that an ophthalmic radiofrequency ablation device can be provided to achieve precise radiofrequency ablation of ocular tissue to treat eye diseases such as glaucoma, while making clinical operations more convenient and safer. Utility Model Content

[0005] One or more embodiments of the present specification provide an ophthalmic radiofrequency ablation device for providing radiofrequency energy to an ablation electrode connected thereto. The radiofrequency ablation device includes: a control device for controlling the various components of the radiofrequency ablation device to control the radiofrequency ablation device to generate the radiofrequency energy; a radiofrequency generator connected to the control device for generating radiofrequency energy based on the control instructions of the control device; an impedance detection device connected to the ablation electrode and the control device for detecting impedance information before, during or after the output of the radiofrequency energy, and transmitting it to the control device; an information reading unit connected to the control device for acquiring electrode information of the ablation electrode and transmitting it to the control device when the ablation electrode is connected to the radiofrequency ablation device.

[0006] In some embodiments, the RF generator includes an RF signal source and a power amplifier, wherein the RF signal source is connected to the control device and is used to generate an RF signal based on the control instruction of the control device; the power amplifier is connected to the RF signal source and is used to generate AC RF energy based on the RF signal output by the RF signal source.

[0007] In some embodiments, the RF generator also includes an RF power supply, which is connected to the control device and the power amplification device and is used to provide electrical energy for the generation of RF energy; preferably, the RF power supply includes an adjustable voltage power supply, which is used to adjust the voltage to a target voltage sent by the control device, so that the power amplification device converts the target voltage into AC RF energy based on the RF signal output by the RF signal source.

[0008] In some embodiments, the RF signal source is also used to generate an RF signal of target power based on the control instruction of the control device, so that the power amplification device converts the power supply voltage into AC RF energy based on the RF signal output by the RF signal source.

[0009] In some embodiments, the power amplifying device is used to generate AC RF energy of target power based on the RF signal output by the RF signal source; the power amplifying device adopts a Class D power amplifying circuit; or adopts a power switch and a transformer, and the power switch and the transformer are connected via a flyback topology, a push-pull topology or a full-bridge topology; or adopts a circuit structure of a power amplifier in combination with a transformer or in combination with an audio power amplifier circuit.

[0010] In some embodiments, the RF ablation device also includes an output device and a power supply assembly, the power supply assembly includes a first power supply unit, a second power supply unit and a third power supply unit, wherein the first power supply unit is connected to the output device for supplying power to the output device; the second power supply unit is connected to the control device for supplying power to the control device and various components connected to the control device; the third power supply unit is connected to the RF generator for supplying power to the RF generator.

[0011] In some embodiments, the radiofrequency ablation device further includes a filter and a real-time clock device; wherein the filter is connected to the power supply to filter the noise of the AC power supply; and the real-time clock device is connected to the control device to provide time information.

[0012] In some embodiments, the impedance detection device includes an impedance monitoring unit and a voltage and current feedback unit, wherein the impedance monitoring unit is connected to the control device and is connected to the ablation electrode through an electrode connection switching unit, and is used to monitor the impedance information before and after the RF energy is output; the voltage and current feedback unit is used to monitor the impedance information during the output of the RF energy; preferably, the electrode connection switching unit includes a single-pole double-throw switch, and the single-pole double-throw switch is used to switch the ablation electrode connected to the RF ablation device between being connected to the RF generator or the impedance detection device; wherein, before or after the RF energy is output, the single-pole double-throw switch is connected to the impedance monitoring unit so that the impedance monitoring unit monitors the impedance information; when the output of the RF energy is turned on, the single-pole double-throw switch is connected to the RF generator so that the RF generator provides the RF energy to the ablation electrode.

[0013] In some embodiments, the RF ablation device further includes a RF energy switch; the RF energy switch is used to control the output of RF energy, and the RF energy switch includes at least one of a foot switch, an activation switch, and an input button; preferably, when the activation switch is turned off, the output of the RF energy can be terminated.

[0014] In some embodiments, the radio frequency ablation device further includes a rotating handle, a cooling fan, a cable interface and a mainboard shielding cover; preferably, the rotating handle includes a handle grip, a handle protrusion and a handle shaft; preferably, the cable interface includes a power switch, a power interface, an equipotential interface and a foot switch interface; preferably, the cooling fan and the power switch are arranged on the mainboard shielding cover; preferably, the mainboard shielding cover is arranged on the inner side of the shell of the radio frequency ablation device to shield electromagnetic interference from the outside world or the radio frequency ablation device to the outside world.

[0015] In some embodiments, the radiofrequency ablation device also includes a trolley, which is used to place the radiofrequency ablation device; preferably, the trolley also includes: a front handle, a rear push handle, a cable hook, a storage box, a body and rollers; preferably, the radiofrequency ablation device includes a fixing structure, which is used to fix or remove the radiofrequency ablation device from the trolley; the fixing structure includes a locking piece and a locking hole arranged at the bottom of the radiofrequency ablation device, or a locking hole arranged on the trolley and a locking piece arranged on the radiofrequency ablation device; the locking piece rotates in the locking hole to fix or remove the radiofrequency ablation device.

[0016] Some embodiments of the utility model include the following beneficial effects: the eye radiofrequency ablation device provided in this embodiment can be connected to the ablation electrode and read the stored information of the ablation electrode, and accurately perform radiofrequency ablation on the eye tissue to treat eye diseases such as glaucoma, simplifying the user's operation steps and operation difficulty. During the entire treatment process, the impedance information before, during or at the end of the radiofrequency energy output can be monitored in real time, making clinical operations more convenient and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0018] Figure 1 It is a schematic diagram of application scenarios of an ocular radiofrequency ablation device according to some embodiments of this specification;

[0019] Figure 2 is an exemplary schematic diagram of an ocular radiofrequency ablation device according to some embodiments of the present specification;

[0020] Figure 3 is a schematic diagram of an ocular radiofrequency ablation apparatus according to some embodiments of the present specification;

[0021] Figure 4 is a schematic diagram of an exemplary structure of an ocular radiofrequency ablation apparatus according to some embodiments of this specification;

[0022] Figure 5 is a schematic diagram of an exemplary structure of an ocular radiofrequency ablation apparatus according to some embodiments of this specification;

[0023] Figure 6 is a schematic diagram of an exemplary structure of a trolley according to some embodiments of this specification;

[0024] Figure 7a is an exemplary schematic diagram of a combination of an ocular radiofrequency ablation apparatus and a trolley according to some embodiments of this specification;

[0025] Figure 7b This is another exemplary schematic diagram of the combination of an ocular radiofrequency ablation device and a trolley according to some embodiments of the present specification. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of this specification. For ordinary technicians in this field, this specification can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0027] It should be understood that the "system", "device", "unit" and / or "module" used herein are a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0028] As shown in this specification and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "comprises" and "includes" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0029] 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 preceding or following operations are not necessarily performed precisely in order. Instead, the steps may be processed in reverse order or simultaneously. At the same time, other operations may also be added to these processes, or one or more operations may be removed from these processes.

[0030] Figure 1 It is a schematic diagram of application scenarios of an ocular radiofrequency ablation device according to some embodiments of this specification.

[0031] In some embodiments, Figure 1 As shown, the radiofrequency ablation device 100 can be used to provide radiofrequency energy to the ablation electrode 120 connected thereto, so as to ablate the target tissue of the eye 130. The target tissue refers to the tissue part that needs to be ablated by radiofrequency. For example, the target tissue may include the ciliary body, trabecular meshwork, or iris in the eye tissue.

[0032] In some embodiments, when the ablation electrode 120 is connected to the radiofrequency ablation device 100, the radiofrequency ablation device 100 provides radiofrequency energy to the ablation electrode 120, and the radiofrequency energy is transmitted to the target tissue through the ablation electrode 120, thereby achieving the purpose of ablation of the target tissue. In some embodiments, the ablation electrode 120 may include an electrode needle with a tip, and the tip is configured to penetrate the target tissue. The electrode needle may include an outer pole and an inner pole, and the outer pole and the inner pole form an ablation wave under the radiofrequency energy provided by the radiofrequency ablation device, thereby achieving ablation of the target tissue.

[0033] In some embodiments, when the ablation electrode 120 is connected to the radiofrequency ablation device 100 for the first time, the radiofrequency ablation device 100 may actively write the time of the first use of the electrode into the storage chip of the ablation electrode 120 .

[0034] In some embodiments, each time the ablation electrode is connected to the radiofrequency ablation device 100, the radiofrequency ablation device 100 may actively update the electrode information (such as the remaining number of electrode uses, the number of times used, or the cumulative ablation time and the remaining ablation time, etc.) and write it into the storage chip of the ablation electrode 120. In some embodiments, the number of times used and the remaining number of times used or the cumulative ablation time and the remaining ablation time may be actively updated and written into the storage chip of the ablation electrode 120 by the radiofrequency ablation device 100 after each use of the ablation electrode is completed. In some embodiments, in response to the end of each use of the ablation electrode, the cumulative ablation time in the storage chip may be increased by the time of a single ablation electrode use, and the remaining ablation time may be reduced by the time of a single ablation electrode use; or the remaining number of uses may be reduced by 1, and the number of uses may be increased by 1.

[0035] In some embodiments, in response to the end of ablation, the RF ablation device 100 can update the electrode information, and / or actively write the electrode information stored in the RF ablation device (such as the remaining number of times the electrode is used, the number of times it has been used, or the cumulative ablation time and the remaining ablation time, etc.) into the storage chip of the ablation electrode.

[0036] In some embodiments, the ablation electrode 120 may be connected to the radiofrequency ablation device 100 via a connector. For example, the connector may be a plug and a socket, and the connector may include an aviation plug, an N-type connector, an SMA connector, and the like.

[0037] Figure 2 is an exemplary schematic diagram of an ocular radiofrequency ablation device according to some embodiments of the present specification.

[0038] In some embodiments, Figure 2 As shown, the radiofrequency ablation apparatus 100 may include a control device 210 , a radiofrequency generator 220 , an impedance detection device 230 and an information reading unit 240 .

[0039] In some embodiments, the control device 210 is used to control the components of the radiofrequency ablation device (such as the radiofrequency generator, the impedance detection device and the information reading unit) to control the radiofrequency ablation device to generate radiofrequency energy. In some embodiments, the control device 210 can be connected to or electrically connected to the radiofrequency generator 220, the impedance detection device 230 and the information reading unit 240. The control device 210 can read information from the components or units connected thereto or send control instructions to each component to achieve control of the radiofrequency ablation device 100. For example, the control device 210 can receive the impedance information of the target tissue of the eye detected by the impedance detection device 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 device 210 can receive the electrode information of the ablation electrode obtained by the information reading unit 240, and determine whether the ablation electrode is available based on the electrode information. If available, the output device is controlled to output the electrode information; if not available, the output device is controlled to output a warning message (such as "electrode verification failed, please replace the electrode", "electrode life ends, please replace the electrode", etc.). For another example, the control device 210 can detect the operating status of the radiofrequency ablation device and / or its accessories (such as a foot switch, ablation electrode), determine the occurrence of a warning or error, and output a warning message or a prompt sound through an output device. For more information about this part, please refer to the following.

[0040] In some embodiments, the control device 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 apparatus and / or its accessories or an external data source (eg, a cloud data center).

[0041] In some embodiments, the microcontroller unit can be used to implement functions such as conversion of analog signals and digital signals, serial communication, SPI (Serial Peripheral Interface) communication, IIC (Inter-Integrated Circuit) communication, signal timing capture, timing control, identification and logic control of digital control states, and calculation of RF voltage and current.

[0042] The RF generator 220 is connected to the control device 210 and is used to generate a RF signal based on the control instruction of the control device 210 when the ablation electrode is electrically connected to the RF ablation device 100, so as to provide RF energy (such as RF energy with a peak value in the range of 0-300V) to the ablation electrode.

[0043] Figure 3 It is a schematic diagram of an ocular radiofrequency ablation device according to some embodiments of the present specification.

[0044] In some embodiments, Figure 3As shown, the RF generator 220 may include a RF signal source 223 and a power amplification device 225 .

[0045] The RF signal source 223 is connected to the control device 210 and the power amplifier 225, and is used to generate a RF signal based on the control instruction of the control device 210. For example, the RF signal source 223 can generate a RF signal of corresponding frequency and amplitude based on a signal generation instruction containing information such as frequency and amplitude sent by the control device 210. In some embodiments, the RF signal source 223 can be connected to the control device 210 through a preset connection method. The preset connection method may include an electrical connection, a communication connection, etc.

[0046] In some embodiments, the RF signal source 223 is further used to generate an RF signal of target power based on a control instruction of the control device 210 so that the power amplifier converts the power supply voltage into AC RF energy based on the RF signal output by the RF signal source.

[0047] In some embodiments, the RF signal may include an analog signal or a digital signal. For example, the RF signal source 223 may be a DDS signal generator for generating a digital signal. For another example, the RF signal source 223 may be based on a phase-locked loop and adjust the parameters (such as frequency, amplitude, etc.) of the RF signal through an RC circuit to generate an analog signal. An RC circuit based on a 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.

[0048] In some embodiments, the RF signal may range from 300 KHz to 3 MHz, for example, 500 KHz, 600 KHz, 900 KHz, 1 MHz, 2 MHz, etc. In some embodiments, the RF signal may include a weak current waveform, a square wave, a sine wave, and a triangle wave.

[0049] In some embodiments, the RF generator 220 may further include an RF power supply 221. The RF power supply 221 is connected to the control device 210 and the power amplifier 225 to provide electrical energy for the generation of RF energy. In some embodiments, the RF power supply can generate a direct current with a voltage range of 0 to 80V, for example, 10V, 30V, 50V, 80V, etc. In some embodiments, the RF power supply 221 is a third power supply unit of the power supply assembly. For more information about the power supply assembly, see below.

[0050] In some embodiments, the RF power supply 221 may include a voltage adjustable power supply.

[0051] The voltage-adjustable power supply, also known as a voltage-controlled power supply, is used to adjust the voltage to the target voltage sent by the control device based on the control instruction sent by the control device 210, so that the power amplifier 225 converts the target voltage into AC radio frequency energy based on the radio frequency signal output by the radio frequency signal source 223. Exemplarily, after the user sets the output power of the radio frequency energy, the control device 210 can adjust the voltage of the voltage-adjustable power supply for this ablation according to the set output power of the radio frequency energy, so that the electric energy output by the radio frequency power supply 221 can form the radio frequency energy required for radio frequency ablation through the power amplifier.

[0052] In some embodiments, the RF power source 221 may be a fixed voltage power source. In this case, the RF generator 220 may adjust the output power of the RF energy by adjusting the output parameters (such as frequency, amplitude, etc.) of the RF signal source 223, or by adjusting the amplification power parameters of the power amplifier 225 to control the output power of the RF energy.

[0053] The power amplifier 225 is connected to the RF signal source 223 and is used to generate RF energy of target power based on the RF signal output by the RF signal source 223. For example, the power amplifier 225 generates RF energy by amplifying the RF signal output by the RF signal source 223 and the electric energy of the RF power supply 221. Figure 3 As shown, one end of the power amplifier 225 is connected to the RF signal source 223, and the other end is connected to the RF power supply 221. In some embodiments, the RF energy may include AC RF energy.

[0054] In some embodiments, the power amplifier 225 can form changing alternating current RF energy by amplifying the direct current generated by the RF power source under the RF signal output by the RF signal source.

[0055] In some embodiments, the power amplification device 225 may include a class D power amplifier. A class D power amplifier is an electronic amplifier for amplifying a low power signal into a high power signal. Compared with a conventional class A, class B or class AB power amplifier, a class D power amplifier has higher efficiency and less power loss.

[0056] In some embodiments, the power amplifier 225 can generate radio frequency energy in a variety of ways. For example, the power amplifier can generate radio frequency energy in a preset topology by means of a power switch in conjunction with a transformer. For another example, the power amplifier can generate radio frequency energy by means of a power amplifier in conjunction with a transformer or in conjunction with an audio power amplifier circuit. Among them, the preset topology may include a flyback topology, a push-pull topology, and a full-bridge topology. The power switch may include a MOS tube, an IGBT, a Darlington transistor, etc.

[0057] The impedance detection device 230 is used to detect impedance information before, during, or after the output of radio frequency energy. In some embodiments, the impedance detection device 230 is used to detect impedance information of the target tissue of the eye during the ablation process and transmit the impedance information to the control device. 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 device can detect the impedance information of the target tissue. The impedance information may include real-time impedance.

[0058] In some embodiments, Figure 3 As shown, the impedance detection device 230 may include an impedance monitoring unit 231 and a voltage and current feedback unit 235 .

[0059] The impedance monitoring unit 231 is used to monitor the impedance information of the target tissue before and after the RF energy output is stopped. In some embodiments, the impedance monitoring unit 231 may include a bioimpedance detection chip.

[0060] 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 device 210, and the control device 210 controls the output device (such as the output device 370) to display the impedance information of the target tissue. 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).

[0061] In some embodiments, Figure 3 As shown, the impedance monitoring unit 231 can be connected to the control device 210 and the ablation electrode 120 through the electrode switching unit.

[0062] The electrode switching unit is used to connect the ablation electrode 120 to the impedance monitoring unit 231 or to connect the ablation electrode 120 to the RF generator 220. In some embodiments, the electrode switching unit may include a single-pole double-throw switch, such as a relay switch, an analog switch, a switch circuit, and the like.

[0063] In some embodiments, in response to before the RF energy starts to be output or after the output stops, the control device 210 may control the single-pole double-throw switch to connect the impedance monitoring unit 231 to the ablation electrode 120 .

[0064] In some embodiments, in response to the output of RF energy, the control device 210 may control the single-pole double-throw switch to connect the RF generator 220 to the ablation electrode 120 so that the RF generator 220 provides RF energy to the ablation electrode 120 .

[0065] It is understandable that the electrode switching unit can ensure that the impedance monitoring unit 231 and the RF generator 220 are not turned on at any time, thereby avoiding equipment failure due to RF energy entering the impedance monitoring unit 231.

[0066] The voltage and current feedback unit 235 is used to monitor the impedance information of the target tissue during the output of the radio frequency energy.

[0067] In some embodiments, the voltage-current feedback unit 235 may include a current-voltage sampling unit.

[0068] The current and voltage sampling unit is used to collect feedback signals of current and voltage, and calculate impedance information based on the collected feedback signals of 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 device 210, and the control device 210 calculates the real-time impedance.

[0069] In some embodiments, the current and voltage sampling unit may include a mutual inductor, a Hall-type voltage and current sensor, and a sampling resistor. In some embodiments, the current and voltage sampling unit obtains impedance information in a variety of ways. For example, the current and voltage sampling unit can collect feedback signals of current and voltage, convert AC current and voltage signals into DC current and voltage signals through a rectifier circuit, and calculate impedance information through a resistance calculation formula. Among them, the resistance calculation formula includes Ohm's law formula.

[0070] In some embodiments, the current and voltage sampling unit 235 can obtain the impedance information of the target tissue and send the impedance information to the control device 210, and the control device 210 controls the output device (such as the output device 370) to output the impedance information of the target tissue. It should be noted that the impedance information can help the user judge the change between the actual RF power and the set RF power. The set RF power is the maximum power of the treatment process. During the treatment process, the target tissue loses water and the resistance increases. The power P = U 2 / R, the voltage remains unchanged, the power will become smaller, and will not be consistent with the RF power set for treatment; therefore, the change in impedance information can reflect the degree of RF ablation; when the impedance changes suddenly (that is, it indicates that the degree of RF ablation has met the conditions for stopping RF energy output), the RF energy output will be stopped even if the timer has not reached the treatment time, which can further ensure the safety of the RF ablation device.

[0071] The information reading unit 240 is used to obtain electrode information of the ablation electrode when the ablation electrode is connected to the radiofrequency ablation device. In some embodiments, the information reading unit 240 reads the electrode information of the ablation electrode connected to the radiofrequency ablation device and transmits the electrode information to the control device 210.

[0072] In some embodiments, in response to the ablation electrode 120 being electrically connected to the radiofrequency ablation device 100 , the information reading unit 240 may automatically acquire the electrode information of the ablation electrode 120 and send it to the control device 210 .

[0073] In some embodiments, the control device 210 can verify the ablation electrode based on the electrode information obtained by the information reading unit; in response to the ablation electrode being unavailable, a prompt is given. 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.

[0074] Electrode information refers to information related to the ablation electrode. In some embodiments, the electrode information may include the chip model, encryption information, electrode type, model, electrode validity period information, electrode life information, data verification code, etc. of the ablation electrode. Among them, the encrypted information refers to the information used to verify whether the electrode is a legally authorized electrode. The first use time refers to the time when the ablation electrode is first connected to the radiofrequency ablation device. The data verification code can be used to verify that the data obtained by the input / output module is consistent with the data in the storage chip or can be matched or paired to determine whether the ablation electrode is legal. The data verification code may include a CRC verification code. The electrode life information may include the number of times the current electrode has been used and the number of times it remains to be used, or the accumulated ablation time and the remaining ablation time.

[0075] In some embodiments, the ablation electrode is available including: the ablation electrode is not an illegal electrode, and is within the validity period, and the remaining number of uses or the remaining ablation time of the ablation electrode is not 0. An illegal electrode refers to an unauthorized electrode that cannot be matched or matched with a radiofrequency ablation device. In some embodiments, the electrode validity period information includes the ablation electrode production validity period and the preset usage time range after unpacking and first use. The ablation electrode production validity period includes the production date and the production shelf life. The preset usage time range can reflect the interval time after the ablation electrode is used for ablation again after the last use (for example, to ensure aseptic operation, the preset usage time range can be set to within 4 hours, 6 hours or 8 hours after unpacking and first use).

[0076] In some embodiments, the output device 370 also includes a display screen 410 (eg, Figure 4 As shown), the electrode type and electrode life information of the ablation electrode can be displayed and confirmation can be requested. Exemplarily, the interface of the output device 370 can display the electrode type and electrode life; 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 number of times remaining; when the information is correct, the user can click the "Confirm" button on the display interface to confirm; when there is an error, the electrode can be replaced or maintenance personnel can be requested to handle it.

[0077] In some embodiments, Figure 3 As shown, the radiofrequency ablation apparatus 100 may further include a radiofrequency energy switch 360 and an output device 370 .

[0078] The RF energy switch 360 can be used to control the start and stop of RF energy output, and / or set ablation parameters. In some embodiments, the RF energy switch can include at least one of an activation switch, a foot switch, and an input button. The input button can be a real button or a virtual button. For example, a virtual button can be a function button in a touch display. A real button can include a keyboard, a mouse, or other buttons.

[0079] The activation switch may be a real button for activating the output control of the radio frequency energy. In some embodiments, the activation switch is used to activate the radio frequency generator when it is started after satisfying the first preset condition.

[0080] The first preset condition means that all functions of the radiofrequency ablation device are normal, the foot switch is connected and the connected ablation electrode is available, and the ablation parameters are determined. When the first preset condition is met, the activation switch is turned on, and the control device can control the radiofrequency generator to generate radiofrequency energy.

[0081] It should be noted that the activation switch is not controlled by software, but by the RF signal. If the activation switch is turned off, the RF generating circuit will be in a closed state, and the control device 210 will not send a control signal for RF output, and the RF energy output control cannot be achieved.

[0082] During the ablation of the target eye tissue, if the output of RF energy is abnormal or an emergency occurs (such as patient physical abnormality, equipment failure, etc.), the user turns off the activation switch and the RF generator 220 stops outputting RF energy.

[0083] In some embodiments, in response to abnormal activation of the activation switch, the control device 210 may send a warning message to the output device 370 and display the warning message to prompt the user. The warning message may include, for example, "Please release the activation switch." In some embodiments, abnormal activation of the activation switch includes: the activation switch is activated when the first preset condition is not met. For more information about the first preset condition, see above.

[0084] The foot switch is used to control the start and stop of the radio frequency energy output after the second preset condition is met. In some embodiments, the connection method between the foot switch and the radio frequency ablation device can include cable connection and wireless network connection.

[0085] 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 also includes the radiofrequency ablation device entering the treatment interface. It is understandable that more treatment information cannot be displayed before entering the treatment interface. At this time, the doctor has uncertainty about the output of radiofrequency energy, so it is necessary to enter the treatment interface before the radiofrequency energy is output. The treatment interface refers to the interface containing relevant information of the treatment displayed by the output device.

[0086] In some embodiments, in response to the foot switch being disconnected from the RF ablation device, the control device 210 may send a warning message to the output device 370 and display the warning message. The warning message may include, for example, "foot switch is not connected" so that the user can connect the foot switch to the RF ablation device.

[0087] In some embodiments, in response to abnormal activation of the foot switch (such as being activated when the second preset condition is not met), the control device 210 can send a warning message to the output device 370 and display the warning message. The warning message may include, for example, "Please release the foot switch."

[0088] During radiofrequency ablation treatment, doctors have to perform ophthalmic surgery under a microscope while holding electrodes in their hands; in some embodiments of this specification, a foot switch is provided to control the start and stop of radiofrequency energy output, which can facilitate doctors to perform treatment operations. It is understandable that the radiofrequency ablation device can also be operated without a foot switch, in which case other operators (such as doctor's assistants) operate the radiofrequency energy control switch to control the start and stop of radiofrequency energy output; or the control switch can be set in other ways (such as on the operating handle of the ablation electrode, etc.).

[0089] The output device 370 may be used to display ablation parameters, treatment information, electrode information and / or prompt information to the user. In some embodiments, the output device may include a display screen or an audio device (such as the display screen 410 and the audio device 340).

[0090] Ablation parameters refer to parameters used when performing radiofrequency ablation on target tissue. In some embodiments, ablation parameters may include treatment type, output power of radiofrequency energy, treatment time, treatment mode, etc.

[0091] The treatment type refers to the type of target tissue for radiofrequency ablation. Different target tissues require different electrode types. For example, the electrode types may include ciliary body electrodes, trabecular meshwork electrodes, iris electrodes, etc. The target tissue is the ciliary body, and the electrode used is a ciliary body electrode.

[0092] The output power of the radio frequency energy reflects the power of the radio frequency ablation. In some embodiments, the output power can be in the range of 0.5-50W. For example, the output power can be any value in the range of 0.5-9.9W.

[0093] Treatment time refers to the treatment time at one location after each insertion when performing radiofrequency ablation on the target tissue.

[0094] In some embodiments, the treatment mode may include a continuous treatment mode and a single treatment mode.

[0095] The continuous treatment mode means that after the tip of the electrode needle penetrates the target tissue, the radiofrequency energy can be released multiple times at the same position, that is, intermittently, and the corresponding treatment time is the accumulation of multiple release times. Correspondingly, the single treatment mode means that after the tip of the electrode needle penetrates the target tissue, the radiofrequency energy is released once, and the corresponding treatment time is the release time of this radiofrequency energy.

[0096] In some embodiments, the treatment information may include elapsed treatment time, output power of radio frequency energy, real-time impedance, etc.

[0097] The treatment time refers to the time during which radiofrequency ablation has been performed at a radiofrequency ablation site. In some embodiments, the control device 210 can determine the treatment time through a timer and output it through the output device 370 (such as the display screen 410).

[0098] The real-time impedance can be used to characterize the real-time impedance of the target tissue. For more information about the real-time impedance, please refer to the above description.

[0099] In some embodiments, Figure 3 As shown, the radiofrequency ablation device 100 may further include a power supply component 320 .

[0100] The power supply component 320 is used to supply power to the control device 210 , the RF generator 220 , the RF energy switch 360 , the output device 370 , and various components connected to the control device 210 .

[0101] In some embodiments, the power supply assembly 320 can be electrically connected to the control device 210 to supply power to the control device, and at the same time supply power to the remaining units in the RF ablation apparatus (such as the RF energy switch 360, the output device 370, the impedance detection unit 231, the voltage and current feedback unit 235, the information reading unit 240, etc.) through the control device.

[0102] In some embodiments, the voltage range output by the power supply component 320 may include 5 to 110 V, for example, 5 V, 10 V, 50 V, 100 V, etc.

[0103] In some embodiments, the power supply assembly 320 may include multiple power supply subunits. The multiple power supply subunits may respectively power multiple components or units in the radiofrequency ablation device 100. In some embodiments, the power supply assembly 320 includes a first power supply unit 321, a second power supply unit 323, and a third power supply unit. For example Figure 3 As shown, the first power supply unit 321 is connected to the output device 370 and can supply power to the output device 370. The second power supply unit 323 is connected to the control device 210 and can supply power to the control device 210 and components or units (such as the impedance detection unit 231, the voltage and current feedback unit 235, the information reading unit 240, etc.) electrically connected to the control device 210. The third power supply unit can be the aforementioned RF power supply 221, connected to the RF generator, and supply power to the RF generator.

[0104] It is understandable that by independently powering the devices connected to the multiple power sub-units through the multiple power sub-units of the power supply assembly, the power supply stability of the radiofrequency ablation apparatus can be improved without generating mutual power supply interference.

[0105] In some embodiments, Figure 3 As shown, the radiofrequency ablation apparatus 100 may further include a filter 310 and a real-time clock device 350. In some embodiments, the radiofrequency ablation apparatus 100 may further include a memory 330 and an audio device 340.

[0106] The filter 310 is connected to the power supply assembly and is used to filter the noise of the AC power supply, so as to transmit the AC power supply to the power supply assembly without attenuation. It can be understood that the filter can attenuate the EMI noise introduced with the AC power supply, and effectively suppress the EMI noise generated by the power equipment to prevent it from entering the AC power grid and interfering with other electronic devices.

[0107] The memory 330 is used to store data, instructions and / or any other information. In some embodiments, the memory can store data and / or information obtained from at least one component of the ophthalmic radiofrequency ablation device or an external data source. For example, the memory can store ablation parameters, electrode information. For another example, the memory can store alternative output powers and alternative treatment times, etc.

[0108] In some embodiments, the memory 330 may include a large capacity memory, a removable memory, etc., or any combination thereof. Preferably, the memory 330 may be an electrically erasable programmable read only memory (EEPROM). By using an EEPROM memory, data can be retained after the device is powered off or shut down, thereby avoiding data loss. In some embodiments, the memory 330 may be integrated into the control device 210 or other devices of the radiofrequency ablation device 100.

[0109] The audio device 340 can be used to send audio information. In some embodiments, the audio information may include audio warning information, prompts, etc. For example, when the control device 210 detects that the activation switch is abnormally started (that is, it is started when the first preset condition is not met), the audio device 340 can be used to broadcast the warning message "Please release the activation switch" by voice. For another example, when the control device 210 detects that the ablation electrode is disconnected, a beeping prompt sound can be emitted through the audio device 340. In some embodiments, the audio device 340 can be integrated into the radiofrequency ablation device 100.

[0110] The real-time clock device 350 is connected to the control device 210 and is used to provide time information for the radiofrequency ablation device 100. In some embodiments, the user can set the real-time clock device by inputting a button (such as a touch interface of a touch display screen) when the radiofrequency ablation device is used for the first time. In some embodiments, in response to the inaccurate time of the real-time clock device 350, the control device 210 can control the display screen to enter the clock setting interface so that the user can adjust the time information. Exemplarily, the clock setting interface may include year, month, day, hour, minute, week and a confirmation button. Among them, the correct year, month, day, hour, minute and week are entered in the input boxes corresponding to the year, month, day, hour, minute and week, and the confirmation button is touched to complete the time reset. In some embodiments, the user cannot set the system time except for the time when the radiofrequency ablation device is used for the first time; if the real-time clock is inaccurate (such as the time of the real-time clock is before the time recorded by the device), the system time needs to be set, and the after-sales maintenance personnel can be reminded on the output device to adjust the time. The after-sales maintenance personnel can use the engineering electrode to set it on the time setting page. Engineering electrodes are a type of ablation electrodes and can only be used by after-sales maintenance personnel. They can be used to calibrate the time of the radiofrequency ablation instrument, correct and rewrite some electrode information, or perform other background settings. It is understandable that the radiofrequency ablation instrument can calculate the life of the ablation electrode based on the system time, and the radiofrequency ablation instrument does not include network time, so the time can only be set when it is turned on for the first time. The time setting permission in other cases is not open to users.

[0111] In some embodiments, the radiofrequency ablation apparatus can be networked. One or more components of the radiofrequency ablation apparatus (e.g., the control device 210, the radiofrequency generator 220, the impedance detection device 230, the information reading unit 240) can communicate information and / or data with one or more other systems of the radiofrequency ablation apparatus (e.g., a medical management system) via a network. For example, the control device 210 can obtain data (e.g., a patient's electronic medical record) from other systems via a network. The network can be any suitable network for the exchange of information and / or data.

[0112] In some embodiments, when the radiofrequency ablation device is connected to the network during use, it can automatically obtain the real-time network time and use the real-time network time as the real-time time of the real-time clock device. At this time, the user does not need to set the real-time clock device.

[0113] The medical management system refers to a system used by the hospital to manage or process all aspects of medical information. In some embodiments, the radiofrequency ablation device also includes a camera that can scan a code to input patient information; the patient can be managed by retrieving more patient information from the medical management system. In some embodiments, the patient management function also includes data analysis, making a patient review plan, and reminding patients to review.

[0114] In some embodiments, the radiofrequency ablation device can obtain treatment information of different patients based on a medical management system or an Internet platform for big data analysis, and recommend ablation parameters (treatment time, output power of radiofrequency energy, etc.) based on the results of the big data analysis.

[0115] 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.

[0116] It should be understood that Figure 2 The device and its components shown can be implemented in various ways. For example, in some embodiments, the information reading unit can be integrated in the control device; the output device can be other equipment that is communicatively connected to the control device, such as a desktop or laptop computer.

[0117] It should be noted that the above description of the radiofrequency ablation device and its components is only for convenience of description and does not limit the present specification to the scope of the embodiments. It is understandable that for those skilled in the art, after understanding the principle of the device, it is possible to arbitrarily combine the components or connect the subunits with other components without deviating from the principle. In some embodiments, Figure 2The control device, radio frequency generator, impedance detection device and information reading unit disclosed in the specification may be different units in one device, or one component may realize the functions of two or more of the above units. For example, each device may share a storage device, or each device may have its own storage device. Such variations are within the scope of protection of this specification.

[0118] Figure 4 It is a schematic diagram of an exemplary structure of an ocular radiofrequency ablation device according to some embodiments of this specification. Figure 5 It is a schematic diagram of the exemplary structure of an ocular radiofrequency ablation device shown in other embodiments of this specification.

[0119] In some embodiments, Figure 3-Figure 4 As shown, the radiofrequency ablation device 100 may also include a filter 310, a power supply component 320, an audio device 340, a display screen 410, a rotating handle 420, a cooling fan 430, a mainboard shielding cover 440, an activation switch 450, and a cable interface. The cable interface may include a connector socket 461, a power switch and a power supply interface 462, an equipotential interface 463, and a foot switch interface 464.

[0120] The activation switch 450 may be a push button or a rotary button. For more information about the filter 310, the power supply assembly 320, the audio device 340, and the display screen 410, please refer to the above text, and will not be described in detail here.

[0121] In some embodiments, the rotating handle 420 may be mounted on the upper portion of the radiofrequency ablation device 100 for holding the radiofrequency ablation device. In some embodiments, the rotating handle 420 may include a handle protrusion, a handle, a rotating shaft, and a handle buckle 421 (eg, Figure 5 As shown). The handle protrusion can make the rotating handle 420 slowly contact the handle groove at the corresponding position on the radiofrequency ablation device 100 when it falls, so as to avoid colliding with the radiofrequency ablation device 100. The rotating handle 420 can be connected to the radiofrequency ablation device 100 through a rotating shaft and rotate along the rotating shaft (such as rotating 0-180 degrees, 0-90 degrees, 0-160 degrees, etc.). The handle buckle 421 refers to a structure that facilitates the operator to buckle the handle from the state of fitting the radiofrequency ablation device to the state of picking up the handle. Exemplarily, the handle buckle 421 can be a groove or protrusion on the handle, or there can be a corresponding groove on the shell of the radiofrequency ablation device 100 to facilitate the handle to be picked up.

[0122] In some embodiments, the cooling fan 430 may be disposed on one side of the radiofrequency ablation device 100 to remove the heat generated by the radiofrequency ablation device 100. In some embodiments, the cooling fan 430 may also be other structures for cooling or discharging heat, such as a water cooling device. In some embodiments, in order to facilitate the cooling fan 430 to discharge heat, a plurality of small holes are disposed on one side of the radiofrequency ablation device 100, and the heat is discharged from the small holes to the outside of the radiofrequency ablation device 100. In some embodiments, a plurality of small holes are also disposed on the other side of the radiofrequency ablation device 100 for transmitting the audio emitted by the audio device 340.

[0123] In some embodiments, the mainboard shielding cover 440 can be arranged inside the housing of the radiofrequency ablation device 100 to shield the electromagnetic interference from the outside to the inside of the radiofrequency ablation device, or from the inside of the radiofrequency ablation device to the outside. In some embodiments, the material of the mainboard shielding cover 440 can be a conductive material, such as metal or plastic with a conductive coating. In some embodiments, the mainboard shielding cover 440 can be a metal material to shield interference while carrying the filter 310, the power supply assembly 320 and the cooling fan 430 to provide a stable installation support force for them. In some embodiments, the cooling fan 430 and the power switch are arranged on the mainboard shielding cover 440.

[0124] In some embodiments, the connector socket 461 can be arranged on the side (also called the front side) where the display screen 410 of the radiofrequency ablation device 100 is located, and is used to connect the connector to achieve the connection between the ablation electrode 120 and the radiofrequency ablation device 100. By arranging the connector interface on the side where the display screen of the radiofrequency ablation device is located, it is convenient for the user to view the information displayed on the display screen on the radiofrequency ablation device (such as electrode information, treatment information, warning information, etc.).

[0125] like Figure 5 As shown, the power switch and the interface 462 may be disposed on the back side of the radiofrequency ablation device 100 (the side opposite to the display screen) for connecting the radiofrequency ablation device 100 to an external power source.

[0126] like Figure 5 As shown, the equipotential interface 463 can be provided on the back of the radiofrequency ablation device, and is used to enable the radiofrequency ablation device 100 to be grounded when there is no grounding socket, thereby ensuring electrical safety.

[0127] like Figure 5 As shown, the foot switch interface 464 can be set on the back of the radiofrequency ablation device for connecting the foot switch to the radiofrequency ablation device 100.

[0128] By arranging the power switch and interface 462, the equipotential interface 463 and the foot switch interface 464 on the back of the radiofrequency ablation device, the appearance of the radiofrequency ablation device can be improved while it is in use, while preventing the components connected to the interface from affecting the user's viewing of the display information on the display screen.

[0129] In some embodiments, the RF ablation device 100 can be fixedly mounted or detachably mounted on the trolley 600. In some embodiments, the RF ablation device 100 is fixedly or detachably connected to the trolley 600 via a fixing structure. For more information about the fixing structure, see below. Figure 7a and 7b As shown, after the radiofrequency ablation device 100 is combined with the trolley 600 , the radiofrequency ablation device 100 is fixed on the platform 650 of the trolley 600 , so as to facilitate the movement and operation of the radiofrequency ablation device 100 .

[0130] Figure 6 It is a schematic diagram of an exemplary structure of a trolley according to some embodiments of the present specification. Figure 7a is an exemplary schematic diagram of a combination of an ocular radiofrequency ablation apparatus and a trolley according to some embodiments of this specification; Figure 7b This is another exemplary schematic diagram of the combination of an ocular radiofrequency ablation device and a trolley according to some embodiments of the present specification.

[0131] The trolley 600 is used to carry the radiofrequency ablation device 100. The trolley 600 can be a separate device. When the radiofrequency ablation device 100 is installed on the trolley 600, the radiofrequency ablation device can be dragged and moved (such as moved to the position of the operator) by moving the trolley 600.

[0132] like Figure 6 , Figure 7a and Figure 7b As shown, in some embodiments, the trolley 600 may include a front handle 610, a rear push handle 620, a storage box 630, a cable hook 660 (such as Figure 7b As shown), body and casters, etc.

[0133] The front handle 610 can be arranged at the front end of the trolley 600 to pull the trolley, thereby driving the radiofrequency ablation device 100 installed thereon to move. The rear push handle 620 can be arranged at the rear end of the trolley 600 to push the trolley 600 to move. The structure of the front handle 610 and the rear push handle 620 can be a ring-shaped structure for handholding. In some embodiments, the setting height of the front handle 610 can be lower than the setting height of the rear push handle 620. It can be understood that when the operator's body is located in front of the trolley to pull the trolley, it is a one-handed operation. At this time, the setting height of the front handle 610 is slightly lower, which can facilitate the one-handed pulling of the trolley. Similarly, when the operator is located at the rear of the trolley and pushes the trolley, the setting height of the rear push handle 620 is slightly higher, and the rear push handle 620 is wider, which can facilitate the operator to push with both hands.

[0134] The storage box 630 can be provided at the rear bottom of the trolley 600 to place items (such as cables, documents, masks, gloves, patient belongings, etc.). In some embodiments, the storage box 630 can also be provided at the front end or side of the trolley 600. The front end of the trolley can refer to the side where the display interface of the RF ablation device 100 is located after the RF ablation device 100 is installed on the trolley 600; accordingly, the rear end refers to the side opposite to the front end.

[0135] Cable hook 660 (eg Figure 7b The cable hook 660 may include a wire hanging shaft and a baffle plate; the cable is wound around the wire hanging shaft, and the baffle plate is used to prevent the cable from falling.

[0136] The body refers to the main part of the trolley 600 , and the body can provide a stable center of gravity for the trolley 600 , support the radiofrequency ablation device, and so on.

[0137] Casters refer to structures that provide the trolley 600 with a mobile function. Casters may include fixed casters, brake casters, and universal casters. Figure 6 or Figure 7a or Figure 7b As shown, the front casters can be two universal casters, and the rear casters can be two brake casters.

[0138] like Figure 6 As shown, in some embodiments, the trolley 600 may further include a fixing structure for fixing or removing the radiofrequency ablation device 100 from the trolley 600. In some embodiments, the fixing structure includes a locking member 640 disposed on the trolley 600 and a locking hole disposed at the bottom of the radiofrequency ablation device; the locking member 640 rotates in the locking hole to fix or remove the radiofrequency ablation device. In some embodiments, the fixing structure may include a locking hole disposed on the trolley and a locking member disposed on the radiofrequency ablation device. Figure 6As shown in , the locking member 640 can be arranged above the platform 650 of the trolley 600, and a knob connected to the locking member 640 is arranged at the bottom of the platform 650. By rotating the knob, the locking member 640 can be locked or unlocked with the locking hole on the radiofrequency ablation device 100, so that the radiofrequency ablation device 100 is fixed or separated from the trolley 600. The form of the fixing structure can also be other structures that can fix the radiofrequency ablation device 100 to the trolley 600. For example, the fixing structure is a buckle structure, including an elastic member and a groove, which are respectively arranged on the radiofrequency ablation device 100 and the trolley 600, and are fixed to the groove by deformation of the elastic member. For another example, the fixing structure is a protrusion at the bottom of the radiofrequency ablation device 100 and a matching groove on the trolley 600, and the radiofrequency ablation device 100 is fixed by the close fit of the protrusion and the groove. In some embodiments, the locking member 640 can include various reasonable shapes such as a cuboid, a cube, an irregular body, and the locking hole can be various shapes that match the locking member 640, and this specification does not make specific restrictions on this.

[0139] It should be noted that the above description of the radiofrequency ablation apparatus and the trolley 600 is only for illustration and description, and does 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 apparatus 100 and / or the trolley 600 under the guidance of this specification. However, these modifications and changes are still within the scope of this specification.

[0140] The ophthalmic radiofrequency ablation device of the present application can be used for a variety of purposes: based on the thermal effect of radiofrequency ablation, when the ophthalmic radiofrequency ablation device is used to perform radiofrequency ablation on the ciliary body, the ciliary body tissue will be damaged or partially necrotic, inhibiting its ability to produce aqueous humor, thereby reducing intraocular pressure (IOP) to treat glaucoma; in addition, radiofrequency ablation can also cause the ciliary body to shrink due to heat, which can deepen the anterior chamber, treat shallow anterior chamber syndrome, and prevent angle-closure glaucoma; at the same time, ciliary body contraction will also increase the gap between the choroid and sclera (suprachoroidal space), producing the effect of suprachoroidal space drainage. On the other hand, the radiofrequency ablation device can be used to replace the appropriate electrode needle shape to perform radiofrequency ablation of the trabecular meshwork, and ablation holes can be made circumferentially in the trabecular meshwork, so that the aqueous humor in the anterior chamber can flow through the ablation holes on the trabecular meshwork into the Schlemm canal to treat early and middle-stage open-angle glaucoma. In addition, for radiofrequency ablation of the iris, by replacing the appropriate electrode needle shape through the radiofrequency ablation device, radiofrequency ablation can also be performed on the iris to make the anterior chamber and the posterior chamber connected, achieving the effect of iridotomy. In addition, the radiofrequency ablation device of the present application can also be used to stop bleeding on the ocular surface or inside the eye.

[0141] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of 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 suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0142] At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in 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.

[0143] In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some invention embodiments that are currently considered useful through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with 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 by software solutions, such as installing the described system on an existing server or mobile device.

[0144] Similarly, it should be noted that in order to simplify the description disclosed in this specification and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this specification, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0145] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this specification are hereby incorporated by reference in their entirety. Except for application history documents that are inconsistent with or conflicting with the contents of this specification, documents that limit the broadest scope of the claims of this specification (currently or later attached to this specification) are also excluded. It should be noted that if the descriptions, definitions, and / or use of terms in the materials attached to this specification are inconsistent or conflicting with the contents described in this specification, the descriptions, definitions, and / or use of terms in this specification shall prevail.

[0146] 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, as an example and not a limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. An ophthalmic radiofrequency ablation device, used to provide radiofrequency energy to an ablation electrode connected thereto, characterized in that: The radiofrequency ablation apparatus comprises: A control device, used to control the components of the radio frequency ablation apparatus to control the radio frequency ablation apparatus to generate the radio frequency energy; a radio frequency generator, connected to the control device, and configured to generate radio frequency energy based on control instructions of the control device; An impedance detection device, connected to the ablation electrode and the control device, for detecting impedance information before, during or after the output of the radio frequency energy, and transmitting the impedance information to the control device; The information reading unit is connected to the control device and is used for acquiring the electrode information of the ablation electrode and transmitting the information to the control device when the ablation electrode is connected to the radiofrequency ablation instrument.

2. The radiofrequency ablation apparatus according to claim 1, characterized in that: The radio frequency generator includes a radio frequency signal source and a power amplifier, wherein: The radio frequency signal source is connected to the control device and is used to generate a radio frequency signal based on the control instruction of the control device; The power amplifying device is connected to the RF signal source and is used to generate AC RF energy based on the RF signal output by the RF signal source.

3. The radiofrequency ablation apparatus according to claim 2, characterized in that: The RF generator further comprises a RF power supply, which is connected to the control device and the power amplification device and is used to provide electrical energy for the generation of RF energy; The RF power supply includes a voltage-adjustable power supply, which is used to adjust the voltage to a target voltage sent by the control device so that the power amplification device converts the target voltage into alternating current RF energy based on the RF signal output by the RF signal source.

4. The radiofrequency ablation apparatus according to claim 2, characterized in that: The RF signal source is also used to generate a RF signal of target power based on the control instruction of the control device, so that the power amplification device converts the power supply voltage into AC RF energy based on the RF signal output by the RF signal source.

5. The radiofrequency ablation apparatus according to claim 2, characterized in that: The power amplification device is used to generate AC radio frequency energy of target power based on the radio frequency signal output by the radio frequency signal source; The power amplifier device adopts a class D power amplifier circuit; or Using a power switch and a transformer, wherein the power switch and the transformer are connected in a circuit manner via a flyback topology, a push-pull topology, or a full-bridge topology; or A circuit structure that uses a power amplifier in conjunction with a transformer or an audio power amplifier circuit.

6. The radiofrequency ablation apparatus according to claim 1, characterized in that: The device also includes an output device and a power supply assembly, wherein the power supply assembly includes a first power supply unit, a second power supply unit and a third power supply unit, wherein: The first power supply unit is connected to the output device and is used to supply power to the output device; The second power supply unit is connected to the control device and is used to supply power to the control device and components connected to the control device; The third power supply unit is connected to the radio frequency generator and is used to supply power to the radio frequency generator.

7. The radiofrequency ablation apparatus according to claim 1, characterized in that: It also includes a filter and a real-time clock device; Wherein, the filter is connected to the power supply and is used to filter the noise of the AC power supply; The real-time clock device is connected to the control device and is used for providing time information.

8. The radiofrequency ablation apparatus according to claim 1, characterized in that: The impedance detection device includes an impedance monitoring unit and a voltage and current feedback unit, wherein: The impedance monitoring unit is connected to the control device and is connected to the ablation electrode through an electrode connection switching unit, and is used to monitor the impedance information before and after the RF energy output is stopped; The voltage and current feedback unit is used to monitor the impedance information during the output of the radio frequency energy; The electrode connection switching unit includes a single-pole double-throw switch, and the single-pole double-throw switch is used to switch the ablation electrode connected to the radio frequency ablation device between being connected to the radio frequency generator or the impedance detection device; wherein, Before the RF energy is output or after the output stops, the single-pole double-throw switch is connected to the impedance monitoring unit, so that the impedance monitoring unit monitors the impedance information; When the output of the radio frequency energy is turned on, the single-pole double-throw switch is connected to the radio frequency generator, so that the radio frequency generator provides the radio frequency energy to the ablation electrode.

9. The radiofrequency ablation apparatus according to claim 1, characterized in that: Also included is a radio frequency energy switch; The RF energy switch is used to control the output of RF energy, and the RF energy switch includes at least one of a foot switch, an activation switch, and an input button; When the activation switch is closed, the output of the radio frequency energy can be stopped.

10. The radiofrequency ablation apparatus according to claim 1, characterized in that: It also includes a rotating handle, cooling fan, cable interface and motherboard shield; The rotating handle comprises a handle grip, a handle protrusion and a handle rotating shaft; The cable interface includes a power switch, a power interface, an equipotential interface and a foot switch interface; The cooling fan and the power switch are arranged on the mainboard shielding cover; The mainboard shielding cover is arranged inside the shell of the radiofrequency ablation device, and is used to shield electromagnetic interference from the outside world or the radiofrequency ablation device to the outside world.

11. The radiofrequency ablation apparatus according to claim 1, characterized in that: Also included is a trolley, which is used to place the radiofrequency ablation device; The trolley also includes: a front handle, a rear push handle, a cable hook, a storage box, a body and rollers; The radiofrequency ablation device comprises a fixing structure, and the fixing structure is used to fix or remove the radiofrequency ablation device from the trolley; The fixing structure comprises: a locking member provided on the trolley and a locking hole provided on the radiofrequency ablation instrument, or a locking hole provided on the trolley and a locking member provided on the radiofrequency ablation instrument; The locking piece rotates in the locking hole to fix or remove the radiofrequency ablation device.

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