Radio frequency ablation equipment for ablating eye tissues

Abstract

The embodiment of the specification provides a radiofrequency ablation device for ablating ocular tissue, the device comprising: an electrode comprising an electrode needle with a needle tip, the needle tip of the electrode needle being configured to be able to extend into an eye; the ablation host is connected with the electrode through a transmission line, and the ablation host comprises a control module, a radio frequency module and an information reading module; two ends of the radio frequency module are respectively connected with the electrode and the control module, and the radio frequency module is configured to provide radio frequency energy for the electrode based on an instruction of the control module; the two ends of the information reading module are connected with the electrodes and the control module respectively, and the information reading module is configured to be capable of reading electrode information of the electrodes and transmitting the electrode information to the control module.

Description

Technical Field

[0001] The present specification relates to the field of eye treatment, and in particular to a radiofrequency ablation device for ablating eye tissue. Background Art

[0002] Radiofrequency ablation technology mainly implements ablation through the thermal effect on the biological body. When radiofrequency current flows through human tissue, the rapid change of the electromagnetic field causes the polar 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] Since the eye has a small tissue structure, higher requirements are placed on the electrodes, ablation accuracy, clinical operability, treatment safety, etc. of radiofrequency ablation. Therefore, it is hoped that a radiofrequency ablation device for ablation of the eye can be provided to achieve accurate radiofrequency ablation of eye tissues to treat eye diseases such as glaucoma, making clinical operation more convenient and safer. Summary of the invention

[0004] One or more embodiments of the present specification provide a radiofrequency ablation device for ablating an eye, the device comprising: an electrode, comprising an electrode needle with a needle tip, the needle tip of the electrode needle being configured to be able to extend into the eye; an ablation host, connected to the electrode via a transmission line, the ablation host comprising a control module, a radio frequency module and an information reading module; two ends of the radio frequency module are respectively connected to the electrode and the control module, and are configured to be able to provide radio frequency energy to the electrode based on the instructions of the control module; two ends of the information reading module are respectively connected to the electrode and the control module, and are configured to be able to read electrode information of the electrode and transmit it to the control module.

[0005] In some embodiments, the electrode includes more than three electrode needles, and on the cross section of the electrode, one of the more than three electrode needles is located in the center as the inner electrode, and the remaining electrode needles are arranged as outer electrodes around the electrode needle as the inner electrode, and insulating material is filled between each of the electrode needles; or the electrode includes an even number of electrode needles, half of the electrode needles of the even number of electrode needles are positive electrodes, and the other half of the electrode needles are negative electrodes, the positive electrode needles and the negative electrode needles are alternately arranged, and each of the electrode needles is arranged at an angle of 100°. An insulating layer is provided on the outer sleeve of the electrode needle; or the electrode comprises an electrode needle with a tower-shaped front end, whose cross section comprises an electrode inner pole, an insulating layer and an electrode outer pole in sequence from the inside to the outside in the radial direction, and the electrode inner pole, the insulating layer and the electrode outer pole form an inner pole region, an insulating region and an outer pole region in sequence on the tower surface from the top of the tower to the bottom of the tower; or the electrode comprises a sandwich electrode needle, which comprises an electrode positive pole, an electrode negative pole and an insulating layer arranged between the electrode positive pole and the electrode negative pole in the radial direction, and the insulating layer forms the tip of the needle tip of the electrode needle.

[0006] In some embodiments, when the electrode includes an even number of electrode needles, the electrode includes a first electrode needle and a second electrode needle with needle tips, the first electrode needle and the second electrode needle are both sheathed with an insulating layer, one of the first electrode needle and the second electrode needle is the positive electrode, and the other is the negative electrode; or, the electrode includes more than four electrode needles, and the more than four electrode needles are arranged in an arc shape in the cross section of the electrode.

[0007] In some embodiments, when the electrode includes an electrode needle with a tower-shaped front end, the electrode outer pole forms a boss at the connection between the tower bottom and the insulating layer, and the boss contacts the surface of the eye; or the annular table surface formed between the electrode outer pole and the insulating layer directly contacts the surface of the eye; preferably, the boss formed by the electrode outer pole at the connection between the tower bottom and the insulating layer is disc-shaped, and the axial distance from the lower surface of the boss to the needle tip is in the range of 0.5mm-1.8mm.

[0008] In some embodiments, the tip of the electrode needle is a conical structure, and the conical surface of the conical structure is divided into an inner pole region, a first insulating region, an outer pole region and a second insulating region in the direction from the tip to the bottom of the cone. When the radio frequency ablation device is working, an ablation wave is generated between the inner pole region and the outer pole region.

[0009] In some embodiments, the electrode needle is cylindrical as a whole, and its cross-section includes an electrode inner pole, a first insulating layer, an electrode outer pole, and a second insulating layer from the inside to the outside in the radial direction. The electrode inner pole, the first insulating layer, the electrode outer pole, and the second insulating layer form the inner pole region, the first insulating region, the outer pole region, and the second insulating region on the outer surface of the needle tip accordingly.

[0010] In some embodiments, the electrode includes at least one of the following: an operating handle, in which the electrode needle is installed; an adjustment component, which is inserted into the outer surface of the electrode needle and can move axially relative to the electrode needle, for adjusting the length of the electrode needle exposed from the adjustment component; an electrode needle protection cap, which has a hollow conical structure and is used to cover the electrode needle; preferably, the electrode also includes a storage chip, which is disposed inside the operating handle, or integrated in the plug of the aviation plug cable connecting the operating handle and the ablation host.

[0011] In some embodiments, the RF module of the ablation host further includes an RF power supply, an RF signal source and a power amplifier module; wherein the input end of the RF signal source is connected to the control module, and the output end is connected to the power amplifier module, the other input end of the power amplifier module is connected to the RF power supply, and the output end is connected to the electrode; the power amplifier module is configured to amplify the direct current generated by the RF power supply to form RF energy under the RF signal output by the RF signal source; preferably, the RF power supply is a voltage-adjustable power supply, and the voltage-adjustable power supply is configured to adjust the voltage to a target value based on the instruction sent by the control module, so that the RF module generates an RF signal with a predetermined output power.

[0012] In some embodiments, the ablation host also includes: an impedance monitoring module, one end of which is connected to the control module, and the other end is connected to the electrode through an electrode connection switching unit, and is configured to monitor the impedance information of the target tissue before the RF energy is output and after the output is stopped; a voltage and current feedback module, which is respectively connected to the control module and the electrode, and is configured to monitor the impedance information of the target tissue 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 electrode connected to the ablation host between being connected to the RF module or the impedance monitoring module; wherein, before the RF energy is output or after the output is stopped, the single-pole double-throw switch is connected to the impedance monitoring module, and when the output of the RF energy is turned on, the single-pole double-throw switch is connected to the RF module.

[0013] In some embodiments, the ablation host further includes at least one of the following: a rotating handle, including a handle protrusion, a handle shaft and a handle buckle, wherein the rotating handle is connected to the ablation host via the handle shaft; a fan heat dissipation hole, disposed on the side of the ablation host close to the fan, for removing heat generated by the ablation host; a mainboard shielding cover, disposed inside the outer shell of the ablation host, for shielding electromagnetic interference from the outside to the inside of the ablation host or from the inside of the ablation host to the outside.

[0014] In some embodiments, the device also includes: a host trolley, which is configured to carry the ablation host, and the host trolley includes at least one of the following: a front handle, which is arranged at the front end of the host trolley; a rear push handle, which is arranged at the rear end of the host trolley; a storage box, which is arranged at the bottom of the rear end of the host trolley; a locking piece, which is arranged above the carrying platform of the host trolley, and a knob connected to the locking piece is arranged at the bottom of the carrying platform.

[0015] In some embodiments, the ablation host also includes a fixing member, which matches the locking member on the host trolley. When the ablation host is placed on the carrying platform of the host trolley, the fixing member and the locking member can be tightly matched by operating the knob of the locking member, thereby fixing the ablation host on the host trolley.

[0016] The radiofrequency ablation device provided in this embodiment, which includes electrodes and an ablation host, can perform accurate radiofrequency ablation treatment on different eye tissues, while simplifying the user's operating steps and operating difficulty, making the radiofrequency ablation treatment process simpler and faster. It can also determine whether the conditions for radiofrequency ablation are met, thereby ensuring the safety and standardization of the radiofrequency ablation treatment process. 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 is an exemplary schematic diagram of a radiofrequency ablation device according to some embodiments of this specification;

[0019] Figure 2A , 2B 2C is an exemplary schematic diagram of a host vehicle according to some embodiments of the present specification;

[0020] Figure 3 is an exemplary schematic diagram of the hardware structure of the ablation host according to some embodiments of this specification;

[0021] Figure 4 is a schematic diagram of the hardware structure of a radiofrequency ablation device according to other embodiments of this specification;

[0022] Figure 5A and 5B is an exemplary schematic diagram of an ablation host structure according to some embodiments of this specification;

[0023] Figure 6 is an exemplary schematic diagram of an ablation electrode according to some embodiments of the present specification;

[0024] Figure 7 is an exploded schematic diagram of an ablation electrode according to some embodiments of the present specification;

[0025] Figure 8 is a cross-sectional view of the handle end of the ablation electrode according to some embodiments of the present specification;

[0026] Fig. 9 is an exemplary schematic diagram of an electrode needle protection cap according to some embodiments of this specification;

[0027] Fig.10 is an exploded schematic diagram of an operating handle in an ablation electrode according to the present invention;

[0028] Fig.11A is an exemplary schematic diagram of an electrode needle according to some embodiments of this specification;

[0029] Fig. 11B is an exemplary schematic diagram of the internal structure of an electrode needle according to some embodiments of this specification;

[0030] Fig. 12A is a schematic diagram of an embodiment of a regulating tube according to some embodiments of this specification;

[0031] Fig. 12B is a schematic diagram of another embodiment of the regulating tube according to some embodiments of this specification;

[0032] Fig.13 is a schematic diagram of another embodiment of the electrode needle according to some embodiments of this specification;

[0033] Fig.14 is a schematic diagram of an embodiment of an electrode needle according to some embodiments of this specification;

[0034] Fig.15A is a schematic diagram of an embodiment of an electrode needle according to some embodiments of this specification;

[0035] Fig. 15B is a schematic diagram of another embodiment of the electrode needle according to some embodiments of this specification;

[0036] Fig.16 It is a schematic diagram of an embodiment of an electrode needle according to some embodiments of this specification. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the following briefly introduces the drawings required for describing the embodiments. The drawings do not represent all implementation methods.

[0038] 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. If other words can achieve the same purpose, the words can be replaced by other expressions.

[0039] 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 "comprise" and "include" 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.

[0040] When the operations are performed according to the step description in the embodiments of this specification, unless otherwise specified, the order of the steps is interchangeable, the steps may be omitted, and other steps may be included in the operation process.

[0041] Figure 1 is an exemplary schematic diagram of a radiofrequency ablation device according to some embodiments of the present specification.

[0042] like Figure 1 As shown, in some embodiments, the radiofrequency ablation device may include an ablation host 110 , an electrode 120 , and a transmission line 130 .

[0043] In some embodiments, the electrode 120 may include an electrode needle with a needle tip, and the needle tip of the electrode needle is configured to penetrate into the eye tissue. The needle tip can be used to penetrate into the eye tissue to ablate the eye tissue based on radio frequency energy. The eye tissue refers to the tissue part to be ablated. For example, the eye tissue may include the ciliary body, trabecular meshwork, or iris. For more details about the electrode, see Figure 6-Figure 13 Described in.

[0044] The ablation host 110 is configured to provide radio frequency energy to the electrode after the electrode is electrically connected to the ablation host. In some embodiments, the ablation host 110 may include a control module, a radio frequency module and an information reading module. Among them, the control module can be configured to control the ablation host 110 to achieve ablation of eye tissue. The two ends of the radio frequency module are respectively connected to the electrode and the control module, and can be configured to provide radio frequency energy to the electrode based on the instructions of the control module. The two ends of the information reading module are respectively connected to the electrode and the control module, and are configured to read the electrode information of the electrode and transmit it to the control module. The information reading module can also be configured to write the electrode usage information recorded by the ablation host 110 into the corresponding electrode. For more details about the ablation host, please refer to Figure 3-5B Described in.

[0045] In some embodiments, the ablation host 110 may be connected to the electrode via a transmission line 130. The transmission line 130 may connect the electrode and the ablation host via a connector, wherein the connector 130 may include an aviation plug, an N-type connector, an SMA connector, and the like.

[0046] In some embodiments, the RF ablation device 100 may further include a foot switch. The foot switch may be connected to the ablation host 110 via a cable to control the output and stop of RF energy. For example, the foot switch may be connected to one end of the cable, and the other end of the cable may be plugged into a foot switch interface (such as a foot switch interface) on the ablation host 110 via a plug. Figure 5A The foot switch interface 564 is connected to the ablation host 110, thereby being electrically connected to the ablation host 110. When the foot switch is electrically connected to the ablation host 110, if the RF energy output conditions are met (such as the electrode is available, the ablation parameters are determined, the electrode reaches the target position and there are no other errors in the ablation host, etc.), the user can control the RF energy output by stepping on the foot switch, and release the foot switch to control the RF energy to stop outputting.

[0047] In some embodiments, Figure 2A As shown in FIG. 2B , the RF ablation device 100 may further include a host trolley 140. The host trolley 140 is configured to carry the ablation host 110. In some embodiments, the ablation host 110 may be fixedly mounted or detachably mounted on the host trolley 140. When the ablation host 110 is mounted on the host trolley 140, the ablation host may be dragged and moved (e.g., moved to the user's location) by moving the trolley 140.

[0048] like Figure 2AAs shown in Figures 2B or 2C, in some embodiments, the host trolley 140 may include a front handle 210, a rear push handle 220, a storage box 230, a cable hook 260, a body and casters. The front handle 210 may be provided at the front end of the host trolley 140 to pull the host trolley, thereby driving the ablation host 110 installed thereon to move. The rear push handle 220 may be provided at the rear end of the host trolley 140 to push the host trolley 140 to move. The structure of the front handle 210 and the rear push handle 220 may be a ring structure for handholding. In some embodiments, the setting height of the front handle 210 may be lower than the setting height of the rear push handle 220. It is understandable 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 210 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 rear push handle 220 is arranged at a slightly higher height and is wider, which can facilitate the operator to push with both hands.

[0049] The storage box 230 can be arranged at the rear bottom of the host trolley 140 to place items (such as cables, documents, masks, gloves, patient belongings, etc.). In some embodiments, the storage box 230 can also be arranged at the front end or side of the host trolley 140. The front end of the host trolley can refer to the side where the display interface of the ablation host 110 is located after the ablation host 110 is installed on the trolley 140; correspondingly, the rear end refers to the side opposite to the front end.

[0050] The cable hook 260 is a component for facilitating the storage of cables. The structure of the cable hook may 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.

[0051] The body refers to the main part of the host trolley 140 , and the body can provide a stable center of gravity for the host trolley 140 , support the radiofrequency ablation device, and so on.

[0052] Casters refer to structures that provide a mobile function for the host trolley 140. Casters can include fixed casters, brake casters, and swivel casters, etc. In some embodiments, the front casters can be two swivel casters, and the rear casters can be two brake casters.

[0053] like Figure 2B As shown, in some embodiments, the host trolley 140 may further include a locking member 240 for fixing the ablation host. Figure 2BAs shown in , the locking member 240 can be arranged above the carrying platform 250 of the host trolley 140, and a knob connected to the locking member 240 is arranged at the bottom of the carrying platform 250. A fixing member (such as a fixing member 550) matching the locking member 240 can be arranged on the ablation host, and the fixing member can be configured to match the locking member 240 on the host trolley. When the ablation host is placed on the platform of the host trolley, the fixing member can be tightly matched with the locking member 240 by operating the knob of the locking member 240, thereby fixing the ablation host on the host trolley. In some embodiments, the locking member 240 can include various reasonable shapes such as a cuboid, a cube, an irregular body, etc., and this specification does not make specific restrictions on this.

[0054] Figure 3 It is an exemplary schematic diagram of the hardware structure of the ablation host according to some embodiments of the present specification.

[0055] like Figure 3 As shown, in some embodiments, the ablation host 110 may include a control module 113 , a radio frequency module 112 , an input / output module 114 , an impedance detection module 115 and an information reading module 116 .

[0056] The control module 113 is configured to control the ablation host 110 to perform radiofrequency ablation on eye tissue.

[0057] In some embodiments, the control module 113 can be connected to the radio frequency module 112, the input / output module 114, the impedance detection module 115 and the information reading module 116 in the ablation host 110. The control module 113 can read information or send instructions from the modules connected to it to control the ablation host 110.

[0058] In some embodiments, the control module 113 may include a microcontroller unit (MCU). The microcontroller unit may be used to implement conversion between analog signals and digital signals, 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 RF voltage and current.

[0059] The RF module 112 may be configured to generate a RF signal based on the instruction sent by the control module 113 when the electrode is electrically connected to the ablation host 110, so as to provide RF energy (such as RF energy with a peak value in the range of 0-300V) to the electrode.

[0060] In some embodiments, Figure 4As shown, the RF module 112 may include a RF signal source 1121 , a RF power supply 1122 , and a power amplification module 1123 .

[0061] The input end of the RF signal source 1121 is connected to the control module 113, and the output end is connected to the power amplifier module 1123, for generating a RF signal based on the instruction of the control module 113. In some embodiments, the RF signal source 1211 can be connected to the control module 113 through a preset connection method. The preset connection method may include an electrical connection, a communication connection, etc.

[0062] In some embodiments, the RF signal may include an analog signal or a digital signal. For example, the RF signal source 1121 may be a DDS signal generator for generating a digital signal. For another example, the RF signal source 1121 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 (Resistor-Capacitance circuit) to generate an analog signal. A phase-locked loop-based RC circuit (Resistor-Capacitance circuit) 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.

[0063] In some embodiments, the RF signal may be in the range of 300 KHz to 3 MHz, for example, 500 KHz, 700 KHz, 900 KHz, 1 MHz, 2 MHz, etc.

[0064] In some embodiments, the radio frequency signal may include a weak current waveform, a square wave, a sine wave, and a triangle wave.

[0065] The RF power supply 1122 is connected to the control module 114 and the power amplifier module 1123 to provide electrical energy for the generation of RF energy. In some embodiments, the RF power supply can generate direct current with a voltage range of 0 to 80V, for example, 10V, 30V, 50V, 80V, etc.

[0066] Preferably, the RF power supply 1122 may include a voltage-adjustable power supply.

[0067] The voltage-adjustable power supply, also known as a voltage-controlled power supply, can be configured to adjust the voltage to a target value based on the instruction sent by the control module 113 so that the RF module 112 generates a RF signal with a predetermined output power. Exemplarily, after the user determines or inputs the output power of the RF signal, the control module 113 can adjust the voltage of the voltage-adjustable power supply for this ablation according to the output power of the RF signal, so that the electric energy output by the RF power supply 1122 can form the RF energy required for RF ablation through the power amplifier module.

[0068] In some embodiments, the RF power supply 1122 may be a fixed voltage power supply. In this case, the RF module 112 may adjust the output power of the RF signal by adjusting the output parameters (such as frequency, amplitude, etc.) of the RF signal source 1121, or by adjusting the amplification power parameters of the power amplifier module 1123 to control the output power of the RF signal.

[0069] In some embodiments, Figure 4 As shown, the other input end of the power amplifier module 1123 is connected to the RF power source 1122, and the output end is connected to the electrode 120, and can be configured to amplify the direct current generated by the RF power source 1122 to form RF energy under the RF signal output by the RF signal source 1121. In some embodiments, the RF energy may include AC RF energy.

[0070] In some embodiments, the power amplifier module 1123 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.

[0071] In some embodiments, the power amplification module 1123 may include a class D power amplifier.

[0072] In some embodiments, the power amplifier module 1123 can generate radio frequency energy in a variety of ways. For example, the power amplifier module 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 module 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, and the like.

[0073] The input / output module 114 is configured to control the start and stop of RF energy output (such as by an activation switch, a foot switch, etc.), and / or set ablation parameters (such as by setting through a touch display screen), and display treatment information, electrode information and / or prompt information to the user (such as by displaying on a display screen).

[0074] In some embodiments, Figure 4As shown, the input / output module 114 may include a human-computer interaction unit 1141 and an output unit 1142. Among them, the human-computer interaction unit 1141 can be used to control the start and stop of the radio frequency energy output, and / or set the ablation parameters. The output unit 1142 can be used to display treatment information, electrode information and / or prompt information to the user. Among them, the ablation parameters refer to the parameters used when performing radio frequency ablation on eye tissue. Treatment information refers to parameters related to the radio frequency ablation process of eye tissue. For instructions on electrode information and prompt information, please refer to the relevant description below.

[0075] Electrode information refers to information related to an electrode. In some embodiments, the electrode information may include the electrode type, electrode production date, number of times used, and number of remaining uses of the electrode.

[0076] In some embodiments, the prompt information may include accessory connection status and / or warning information.

[0077] Accessories refer to components that need to be connected to the ablation host through cables or other means. For example, accessories may include electrodes 120, foot switches, etc.

[0078] The accessory connection state can represent the connection status of the accessory with the ablation host. In some embodiments, the accessory connection state can include whether the foot switch or electrode is connected to the ablation host, or whether the foot switch or electrode is not connected to the ablation host.

[0079] The warning information can prompt the user to perform corresponding operations based on the warning information. For example, in response to the electrode being disconnected from the ablation host, the control module can control the input / output module to output the warning information that the electrode is not connected, so that the user can check the connection status of the electrode.

[0080] In some embodiments, the human-computer interaction unit 1141 may include at least one of a foot switch, an activation switch (such as the activation switch 520), and an input button. For example, the input button is configured to set ablation parameters and may include a keyboard, a mouse, a virtual button (such as a function button in a touch display), a real button, etc. In some embodiments, in response to the user setting the ablation parameter through the input button, the control module may determine the ablation parameter. The output unit may include a display screen (such as the display screen 510), an audio device 430 (such as a speaker), etc.

[0081] In some embodiments, the input / output module 114 may include a touch screen display. In this case, the input button of the human-computer interaction unit 1141 may be integrated with the output unit.

[0082] The activation switch 420 is used to activate the radio frequency module after the first preset condition is met. The first preset condition means that the accessory connection status with the ablation host is connected, the electrode is available, the ablation parameters have been set, and the ablation host has no other errors. For instructions on the availability of electrodes, please refer to the following related description.

[0083] When the first preset condition is met, the activation switch is turned on, and the control module can control the radio frequency module to generate radio frequency energy.

[0084] 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 generation circuit will be in an off state, the control module will not send a control signal for RF output, and the RF energy output control cannot be achieved.

[0085] During the ablation of 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 module 112 stops outputting RF energy.

[0086] The foot switch is configured to control the start and stop of the radio frequency energy output after a second preset condition is met.

[0087] The second preset condition means that after the first preset condition is met, the electrode is inserted into the eye tissue and reaches the target position.

[0088] In some embodiments, the connection method between the foot switch and the ablation host 110 may include cable connection or wireless network connection.

[0089] The impedance detection module 115 is configured to detect the impedance information of the eye tissue during the ablation process and transmit the impedance information to the control module. For example, before the RF energy is output, in response to the user inserting the electrode into the patient's eye tissue, the impedance detection module can detect the impedance information of the eye tissue. The impedance information may include real-time impedance.

[0090] In some embodiments, Figure 4 As shown, the impedance detection module 115 may include an impedance monitoring unit 1151 and a voltage and current feedback unit 1152 .

[0091] In some embodiments, one end of the impedance monitoring unit 1151 is connected to the control module 113, and the other end is connected to the electrode 120 through the electrode connection switching unit, and can be configured to monitor the impedance information of the target tissue before and after the RF energy output stops.

[0092] In some embodiments, the impedance monitoring unit 1151 may include a bio-impedance detection chip.

[0093] In some embodiments, the impedance monitoring unit 1151 can obtain impedance information of eye tissue and send the impedance information to the control module 113. The impedance information can help the user determine whether the tip of the electrode is inserted into the position that needs treatment (ie, the target position).

[0094] The electrode switching unit is configured to switch the electrode connected to the ablation host between conducting with the RF module 112 or the impedance monitoring module 115. Preferably, 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.

[0095] In some embodiments, in response to before the RF energy starts to be output or after the output stops, the control module 113 can connect the impedance monitoring unit 1151 to the electrode 120 by controlling the single-pole double-throw switch.

[0096] In some embodiments, in response to the output of radio frequency energy, the control module 113 may control the single-pole double-throw switch to connect the radio frequency module 112 to the electrode 120 so that the radio frequency module 112 provides radio frequency energy to the electrode 120 .

[0097] It is understandable that the electrode switching unit can ensure that the impedance monitoring unit 1151 and the RF module 112 are not turned on at any time, thereby avoiding device failure due to RF energy entering the impedance monitoring unit 1151.

[0098] In some embodiments, Figure 4 As shown, the voltage and current feedback module 1152 is connected to the control module 113 and the electrode 120 respectively, and can be configured to monitor the impedance information of the target tissue during the output of the radio frequency energy.

[0099] In some embodiments, the voltage-current feedback unit 1152 may include a current-voltage sampling unit.

[0100] The current and voltage sampling unit is configured 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 1152 can send the collected current value and voltage value to the control module 113, and the control module 113 calculates the real-time impedance.

[0101] 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.

[0102] In some embodiments, the current and voltage sampling unit 1152 can obtain the impedance information of the eye tissue and send the impedance information to the control module 113, and the control module 113 controls the input / output module 114 to output the impedance information of the eye 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 impedance increases. The power P = U 2 / R, the voltage remains unchanged and the power will gradually decrease; 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 RF ablation.

[0103] The information reading module 116 is configured to obtain electrode information of the electrode 120 after the electrode 120 is electrically connected to the ablation host 110, transmit the electrode information to the control module 113, and / or write the electrode usage information recorded by the ablation host into the electrode.

[0104] In some embodiments, in response to the electrode 120 being electrically connected to the ablation host 110 , the information reading module 116 may automatically acquire the electrode information of the electrode 120 and send it to the control module 113 .

[0105] In some embodiments, after ablation is completed, in response to the remaining service life of the electrode not being 0, the control module 113 can actively write the electrode usage information recorded by the ablation host into the electrode. The life of the electrode includes the remaining number of times the electrode is used, the number of times it has been used, or the accumulated ablation time and the remaining ablation time.

[0106] In some embodiments, the electrode 120 may include a memory chip. The memory chip is configured to store electrode information of the electrode.

[0107] In some embodiments, the electrode information may include the chip model of the electrode, encryption information, electrode type, model, production date, production shelf life, first use time, service life, remaining number of uses, number of uses, and data verification code. 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 electrode is first connected to the ablation host. 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 electrode is legal. The data verification code may include a CRC verification code.

[0108] In some embodiments, when the electrode 120 is connected to the ablation host 110 for the first time, the ablation host 110 may actively write the first use time into the storage chip of the electrode 120 .

[0109] In some embodiments, the remaining usage times and the used times can be actively updated by the ablation host 110 and written into the memory chip of the electrode 120 each time the ablation host 110 is connected. In some embodiments, in response to each use of the electrode, the remaining usage times in the memory chip are reduced by 1 and the used times are increased by 1.

[0110] In some embodiments, in response to the end of ablation, and the remaining number of uses or the remaining ablation time (i.e., usable life) of the electrode is not 0, the control module can actively write the electrode information stored in the ablation host (such as the remaining number of uses, the number of uses, or the cumulative ablation time and the remaining ablation time) into the storage chip.

[0111] In some embodiments, the storage chip may be integrated inside the electrode operating handle, or integrated into the plug of the aviation plug cable connecting the electrode operating handle and the ablation host.

[0112] In some embodiments, the ablation host 110 may determine whether the electrode is available based on the acquired electrode information.

[0113] The electrode is available if it is a legal electrode, has not exceeded the preset usage time range, and the remaining number of uses is not 0. A legal electrode is an authorized electrode that is matched with the ablation host. The preset usage time range can reflect the interval time after the electrode is used for ablation again. For example, after electrode A is opened and used to complete eye tissue ablation, the remaining number of uses is not 0, and the ablation ends at 10 am on December 1. 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 the electrode A is used for ablation again at 1 pm on December 1, 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 pm on December 1, the time interval between the two uses is 5 hours, which is greater than 4 hours, so it exceeds the preset usage time range. When the electrode is connected, the RF ablation host will remind you that the electrode has expired.

[0114] In some embodiments, the control module 113 can determine that the electrode is available in a variety of ways. For example, the control module can verify the encryption information of the electrode. If the encryption information is correct, the electrode is determined to be a legally authorized electrode. At the same time, it is checked whether the electrode has exceeded the shelf life, whether it has exceeded the preset usage time range, and the remaining life. If the electrode has not exceeded the shelf life and has not exceeded the preset usage time range and the remaining life is not 0, it is determined that the electrode is available. Among them, the encryption information can be constructed in a variety of ways, for example, symmetric encryption, asymmetric encryption, etc. Exemplarily, the encryption information of the electrode is constructed by symmetric encryption. When the control module receives the encrypted information, the encrypted information can be decrypted by the key. If it cannot be decrypted or the decrypted information is incorrect, the control module can determine that the electrode is an illegal electrode, and control the output module to output a warning message, such as "the electrode is illegal, please replace the electrode".

[0115] In some embodiments, in response to the electrode 120 being disconnected from the ablation host 110, the control module 113 may send a warning message to the input / output module 114 to control the input / output module 114 to output the warning message. For example, the warning message may include "electrode not connected".

[0116] In some embodiments, in response to the control module 113 determining that the electrode is unavailable, the control module 113 may send a warning message to the input / output module 114 to control the input / output module 114 to output the warning message. For example, the warning message may include "electrode unauthorized", "electrode life end", etc.

[0117] In some embodiments, in response to the electrodes being available, the control module 113 may send a warning message to the input / output module 114 to control the input / output module 114 to output the electrode information for the user to confirm.

[0118] In some embodiments, Figure 3 As shown, the ablation host 110 may further include a power module 111 .

[0119] The power module 111 is configured to supply power to the control module 113 , the RF module 112 , the input / output module 114 , and various modules communicating with the control module 113 .

[0120] In some embodiments, the power module 111 can be electrically connected to the control module 113 to power the control module, and at the same time power the remaining modules in the ablation host (such as the input / output module 114, the impedance monitoring unit 1151, the voltage and current feedback unit 1152, the information reading module 116, etc.) through the control module.

[0121] In some embodiments, the voltage output by the power module 111 may range from 5 to 110 V, for example, 5 V, 10 V, 50 V, 100 V, etc.

[0122] In some embodiments, the power module 111 may include multiple power submodules. The multiple power submodules may respectively power multiple modules in the ablation host 110. Figure 4 As shown, the power submodule 1111 can provide power for the output unit 1142, and the power submodule 1112 can provide power for the control module 113 and the modules electrically connected to the control module 113 (such as the impedance monitoring unit 1151, the voltage and current feedback unit 1152, the information reading module 116, etc.).

[0123] It is understandable that by independently supplying power to the modules corresponding to the power submodule through the power submodule, the power supply stability of the ablation host can be improved without causing mutual power supply interference.

[0124] In some embodiments, Figure 4 As shown, the ablation host 110 may further include a power filter 410 , a memory 420 , an audio device 430 , and a real-time clock 440 .

[0125] The power filter 410 is configured to suppress noise in the AC power supply, thereby transmitting the AC power supply to the power module without attenuation. It is understood that the power filter can attenuate the EMI noise introduced with the AC power supply, while effectively suppressing the EMI noise generated by the power equipment to prevent it from entering the AC power grid and interfering with other electronic devices.

[0126] The memory 420 is configured 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 radiofrequency ablation device or an external data source. For example, the memory may store ablation parameters, electrode information. For another example, the memory may store alternative output powers and alternative treatment times, etc.

[0127] In some embodiments, the memory 420 may include a large capacity memory, a removable memory, etc., or any combination thereof. Preferably, the memory 420 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 420 may be integrated into the control module 113 or other modules of the ablation host 110.

[0128] The audio device 430 may be configured to emit audio information. In some embodiments, the audio information may include audio warning information, prompts, etc. For example, when the control module 113 detects that the activation switch is abnormally activated (i.e., activated when the first preset condition is not met), the audio device 430 may voice broadcast the warning message "Please release the activation switch". For another example, when the control module 113 detects that the electrode connection is disconnected, a beeping prompt sound may be emitted through the audio device 430. In some embodiments, the audio device 430 may be integrated into the ablation host 110.

[0129] The real-time clock 440 is configured to provide time information to the ablation host 110. In some embodiments, the user can set the real-time clock through the input / output module when the radiofrequency ablation system is used for the first time. Specifically, for example, the user can set the real-time clock in the display interface. In some embodiments, in response to the inaccurate time of the real-time clock 440, the control module 113 can control the display screen to enter the time setting reminder interface to remind the user to contact after-sales maintenance personnel to adjust the time information. It is understandable that the radiofrequency ablation instrument can determine whether the ablation electrode is within the validity period 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, and the time setting authority for other situations is not open to the user.

[0130] Figure 5A and 5B It is an exemplary schematic diagram of the ablation host structure shown in some embodiments of this specification.

[0131] In some embodiments, Figure 5A and 5BAs shown, in addition to the above hardware modules (such as power module 111, RF module 112, control module 113, input / output module 114, impedance detection module 115, information reading module 116, etc.) and power filter 410, memory 420, audio device port 570, real-time clock 440, activation switch 450 and other structures, the ablation host 110 may also include a rotating handle 520, a fan heat dissipation hole 530, a mainboard shielding cover 540 and related interfaces. The related interfaces include a connector socket 561, a power switch and interface 562, an equipotential interface 563 and a foot switch interface 564.

[0132] In some embodiments, the rotating handle 520 is installed on the upper part of the ablation host 110 for picking up and placing the ablation host. In some embodiments, the rotating handle 520 may include a handle protrusion, a handle, and a handle buckle 560. In some embodiments, the handle protrusion can allow the rotating handle to fall slowly to avoid colliding with the ablation host 110, and the handle buckle 560 can facilitate the operator to buckle the handle from the state of fitting the radiofrequency ablation device to the structure of picking up the state. Exemplarily, the handle buckle 560 can be a groove or protrusion on the handle. In some embodiments, the rotating handle 520 can be connected to the ablation host 110 through a handle shaft, and the rotating handle 520 can rotate along the handle shaft (such as rotating 0-180 degrees, 0-90 degrees, 0-150 degrees, etc.).

[0133] In some embodiments, the fan heat dissipation hole 530 may be provided on the side of the ablation host 110 close to the fan to remove the heat generated by the ablation host 110. In some embodiments, in order to facilitate the fan heat dissipation hole 530 to discharge heat, a plurality of heat dissipation holes may be provided on one side of the radiofrequency ablation device 100, and the heat is dissipated from the heat dissipation holes to the outside of the shell of the radiofrequency ablation device 100. In some embodiments, the heat dissipation holes are conical, and the aperture thereof gradually decreases from the inner side to the outer side of the shell of the radiofrequency ablation device 100, so as to be more conducive to heat dissipation and prevent foreign matter from entering the radiofrequency ablation device 100.

[0134] In some embodiments, the mainboard shielding cover 540 can be disposed inside the housing of the ablation host 110 to shield the electromagnetic interference from the outside to the inside of the ablation host or from the inside of the ablation host to the outside. In some embodiments, the mainboard shielding cover 540 can be made of a conductive material, such as metal or plastic with a conductive coating. In some embodiments, the mainboard shielding cover 540 can be made of a metal material to shield interference while supporting the filter 410, the power module 111, and the cooling fan 580 to provide a support force for their stable installation.

[0135] In some embodiments, the connector socket 561 can be arranged on the side where the display screen of the ablation host is located (also called the front side), and is used to connect the connector 130 to achieve the connection between the electrode 120 and the ablation host 110. By arranging the connector interface on the side where the display screen of the ablation host is located, it is convenient for the user to view the information displayed on the display screen in the ablation host 110 (such as electrode information, treatment information, warning information, etc.).

[0136] like Figure 5B As shown, the power switch and interface 562 may be disposed on the back side of the ablation host (the side opposite to the display screen) for connecting the ablation host 110 to an external power source.

[0137] like Figure 5B As shown, the equipotential interface 563 can be set on the back of the ablation host, so that the ablation host 110 can be grounded when there is no grounding socket, thereby ensuring the electrical safety of the radiofrequency ablation equipment.

[0138] like Figure 5B As shown, the foot switch interface 564 can be set on the back of the ablation host for connecting the foot switch to the ablation host 110.

[0139] By arranging the power switch and interface 562, the equipotential interface 563 and the foot switch interface 564 on the back of the ablation host, the appearance of the host can be improved while being used, while preventing the devices connected to the interface from affecting the user's viewing of the display information on the display screen.

[0140] In some embodiments, Figure 5B and Figure 2B As shown, the ablation host 110 may further include a fixing structure 550 for fixing on the host trolley 140. In some embodiments, the fixing structure 550 may be a structure matching the locking member 240. For example, the fixing structure 550 may be a rectangular groove, which has the same shape as the locking member 240 and can accommodate the locking member 240. The locking member 240 rotates a certain angle in the groove to achieve locking and fixing of the ablation host.

[0141] Figure 6 is an exemplary schematic diagram of electrodes according to some embodiments of the present specification.

[0142] like Figure 6 and Fig.11A As shown, in some embodiments, the electrode 120 may include an electrode needle 1 with a tip 2 and an operating handle 4, wherein the electrode needle 1 is installed in the operating handle 4. The tip 2 is configured to penetrate into the eye tissue to ablate the eye tissue based on radio frequency energy. In some embodiments, the electrode 120 may include an adjustment component 3 and an electrode needle protective cap 6.

[0143] The electrode needle protection cap 6 is a hollow conical structure and can be configured to cover the electrode needle.

[0144] The electrode needle 1 may be configured to generate ablation waves required for radiofrequency ablation. For example, after the electrode 120 is connected to the ablation host 110, the electrode needle 1 may generate ablation waves using radiofrequency energy provided by the ablation host 110.

[0145] Preferably, the electrode 120 further includes a memory chip, which can be disposed inside the operating handle or integrated into the plug of the air plug line connecting the operating handle and the ablation host. For more information about the memory chip, please refer to the above related description.

[0146] The operating handle 4 is configured to control the electrode position. In some embodiments, the operating handle 4 may be slender, including a handle end 41 and a handle body 42, and the handle end 41 and the handle body 42 may be connected in a detachable manner to facilitate the replacement of different handle ends 41 of the operating handle 42. The detachable connection may include plug-in, snap-on, screw-on, etc.

[0147] In some embodiments, the operating handle 4 may be made of ABS, PVC, PET, PA or other medical-grade polymer materials and engineering modified plastics.

[0148] In some embodiments, the handle end 41 may be tapered and may have a circular cross section. The diameter of the cross section at one end of the handle end is smaller than the diameter of the cross section at the other end, the end with the smaller cross section diameter is the front end of the handle end, and the end with the larger cross section diameter is the rear end of the handle end.

[0149] In some embodiments, a first annular flange 411 may be provided at a preset position between the front end and the rear end of the handle end 41. The preset position may include the middle portion of the handle end.

[0150] In some embodiments, the first annular flange 411 may form abutment portion 412 with the rear side of the handle end. The butt portion 412 may be used for the middle finger to butt against, to prevent the finger from slipping when using the operating handle, and to improve the comfort of the hand holding the operating handle. In some embodiments, the diameter of the cross section of the butt portion may first gradually decrease and then gradually increase in the direction from the first annular flange to the rear end of the handle end.

[0151] In some embodiments, in combination Figure 7 , Figure 8 As shown, the front and rear ends of the handle end 41 may be provided with a first through hole 43, and the electrode needle 1 is fixedly connected to the first through hole 43 by a permanent fixed connection (such as injection molding or gluing, etc.) or a non-permanent fixed connection (such as a detachable connection such as plug-in, snap-on, screw-on, etc.).

[0152] In some embodiments, a positioning sleeve 413 may be provided inside the handle end 41, the positioning sleeve 413 coincides with the central axis of the handle end 41 and the free end of the positioning sleeve 413 further extends toward the rear side of the handle end 41, and the handle end 41 is detachably connected to the handle body 42 through the positioning sleeve 413. For example, one of the positioning sleeve 413 and the handle body 42 is provided with a first positioning groove 414, and the other of the positioning sleeve 413 and the handle body 42 is provided with a positioning protrusion 421 that matches the first positioning groove 414.

[0153] In some embodiments, the positioning sleeve 413 is provided with a plurality of first positioning grooves 414 in the circumference thereof, and the handle body 42 is provided with a plurality of positioning protrusions 421 corresponding to the first positioning grooves 414, and the positioning protrusions 421 can be inserted into the first positioning grooves 414 to fix the handle end 41 to the handle body 42. Preferably, there can be two first positioning grooves 414, which are symmetrically arranged along the circumference of the positioning sleeve 413.

[0154] In some embodiments, a plurality of positioning protrusions may be provided around the positioning sleeve 413, and a plurality of first positioning grooves matching the positioning protrusions may be provided inside the handle body 42 correspondingly. The positioning protrusions may be inserted into the first positioning grooves to fix the handle end 41 to the handle body 42.

[0155] In some embodiments, a counterweight cavity 45 may be provided inside the positioning sleeve 413, and a counterweight block 46 may be inserted into the cavity 45. The counterweight block 46 may improve the user's operating feel. The counterweight block 46 is a tubular structure, and a plurality of second positioning grooves 47 corresponding to the first positioning groove 414 are also provided around the counterweight block 46. After the positioning protrusion 421 is inserted through the first positioning groove 414, it is further inserted into the second positioning groove 47, thereby strengthening the fixed connection between the handle end 41 and the handle body 42, and also preventing the counterweight block 46 from being separated from the counterweight cavity 45.

[0156] In some embodiments, Figure 8 As shown, the length of the electrode inner pole 11 in the axial direction can be greater than the length of the first insulating layer 12, the electrode outer pole 13, and the second insulating layer 14. The end of the electrode inner pole 11 away from the needle tip 2 (i.e., the end inside the operating handle 4) is electrically connected to the storage chip 5 inside the operating handle 4 through a connecting wire or a metal connecting tube 36 sleeved on the electrode inner pole 11. The second insulating layer 14 is partially peeled off at one end of the electrode needle 1 located inside the operating handle 4 to expose the electrode outer pole 13, and the electrode outer pole 13 is electrically connected to the storage chip 5 through a connecting wire. The connecting wire and the storage chip 5 can be electrically connected by welding, such as micro-resistance welding, laser welding, brazing, etc.

[0157] In some embodiments, the handle body 42 may be in the shape of an elongated arc, with one end connected to the rear end of the handle end being the front end of the handle body, and the other end being the rear end of the handle body.

[0158] In some embodiments, the front end of the handle body may be provided with a second annular flange 422, and a grip portion 423 is formed between the second annular flange 422 and the rear end of the handle body 42. The cross section of the grip portion 423 is circular, and the cross-sectional size of the grip portion 423 gradually decreases and then gradually increases in the direction from the second annular flange 422 to the rear end of the handle body 42. The grip portion 423 can be used for gripping by the thumb and index finger of the hand to improve the comfort of the hand gripping the operating handle.

[0159] In some embodiments, the handle body 42 may include a left shell 8, a right shell 9, and an upper shell 7. In some embodiments, the left shell 8 and the right shell 9 may have the same and symmetrical structures and be connected in a detachable manner. In some embodiments, the upper shell 7 may be inserted into the opening formed by the left shell 8 and the right shell 9.

[0160] In some embodiments, in combination Figure 7 , Fig.10 As shown, the top middle area of ​​the left shell 8 and the right shell 9 can each be provided with an opening 75 to allow the upper shell 7 to be inserted into the mounting groove 76 formed by the two openings 75. Preferably, the opening 75 can be an arc-shaped opening so that the shape of the opening 75 is more compatible with the cross-sectional change of the handle body 42.

[0161] In some embodiments, a first fixed block 71 may be provided at the bottom of the upper shell 7 near the front end, and a first fixed slot 77 may be provided on the lower side of the front end of each opening 75. The first fixed block 71 can be inserted and fixed in a first fixed hole 78 formed by the two first fixed slots 77, that is, the front end of the upper shell 7 can be engaged in the first fixed hole 78 through the first fixed block 71.

[0162] In some embodiments, plug-in card blocks 72 may be provided on both sides of the middle area of ​​the bottom of the upper shell 7, and a plug-in card slot 79 matching the plug-in card block 72 may be provided on the lower side of the middle part of the opening 75, and the two ends of the upper shell 7 can be respectively plugged into the plug-in card slots 79 in the left shell 8 and the right shell 9 through the plug-in card blocks 72.

[0163] In some embodiments, a second fixing block 81 may be provided at the bottom of the upper shell 7 near the rear end, and a second fixing slot 70 may be provided on the lower side of the rear end of each opening 75. The second fixing block 81 can be inserted and fixed in a second fixing hole 82 formed by the two second fixing slots 70, that is, the rear end of the upper shell 7 can be engaged in the second fixing hole 82 through the second fixing block 81.

[0164] In some embodiments, a mounting protrusion 73 may be provided in the middle area of ​​the bottom of the upper housing 7, and the mounting protrusion 73 is integrally formed with the plug-in card blocks 72 on both sides. The lower surface of the mounting protrusion 73 may be provided with a mounting cavity 74 extending toward its upper surface to allow the memory chip 5 to be accommodated and fixed in the mounting cavity 74.

[0165] In some embodiments, a threading hole 83 may be provided at the rear end of the upper housing 7 , and the threading hole 83 may allow a signal cable connected to the electrode needle 1 or the storage chip 5 to pass through.

[0166] The adjustment component 3 is configured to be inserted into the outer surface of the electrode needle 1 and can move relative to the axial direction of the electrode needle 1 to adjust the length of the electrode needle 1 exposed from the adjustment component 3. In some embodiments, the adjustment component may include an adjustment tube 3.

[0167] In some embodiments, the inner diameter of the adjustment tube 3 is larger than the outer diameter of the electrode needle 1, and a protruding step can be formed between the electrode needle 1 and the adjustment tube 3. When the tip of the electrode needle penetrates the eye tissue, the protruding step can contact the eye surface and prevent the adjustment tube from penetrating the eye tissue.

[0168] It is understood that the length of the electrode needle 1 exposed from the adjustment tube 3 is the depth of the electrode needle 1 penetrating the eye tissue. In some embodiments, the depth of the electrode needle penetrating the eye tissue may include 0.5mm to 2.5mm. For example, 0.5mm, 0.7mm, 1.1mm, 1.5mm, 2.5mm, etc. Among them, the depth of the electrode needle penetrating the eye tissue can be determined based on the use requirements.

[0169] In some embodiments, the adjustment tube 3 may include adjustment tubes of different lengths, and the lengths of the electrode needles exposed from the adjustment tubes are different. For example, if the depth of the electrode needles penetrating the eye tissue changes from 1.5 mm to 2.5 mm, a 1 mm shorter adjustment tube is required compared to the previous adjustment tube.

[0170] In some embodiments, the adjusting tube 3 can be installed on the adjusting handle 4 in a variety of ways. For example, the adjusting tube can be fixed to the operating handle by magnetic attraction. For example, the adjusting tube can be fixed to the operating handle by plugging.

[0171] In some embodiments, Fig. 12AAs shown in FIG. 12B, a numerical mark 31 is provided on the outer surface of one end of the regulating tube, and a position mark 32 is provided on the outer surface of the other end. The numerical mark 31 can represent the length of the electrode needle exposed from the regulating tube. For example, the numerical mark 2.5 mm indicates that the length of the electrode needle exposed from the regulating tube is 2.5 mm. The position mark 32 can represent that the regulating tube is inserted to a position where it can be fixedly connected to the operating handle.

[0172] In some embodiments, the in-position mark 32 may include a color area 321 or a color ring 322 provided on the surface of the adjusting tube. When the color area 321 or the color ring 322 is completely covered by the operating handle, it indicates that the adjusting tube is inserted into a position where it can be fixedly connected to the operating handle.

[0173] The electrode needle protection cap 6 is configured to protect the electrode needle. Fig. 9 As shown, the electrode needle protection cap 6 can be a hollow conical structure, covering and fixed on the periphery of the handle end 41.

[0174] In some embodiments, in combination Fig.10 As shown, the electrode needle protection cap 6 may be provided with a second through hole 61, which connects the front and rear sides of the electrode needle protection cap 6 to allow the adjustment tube 3 to pass through the second through hole 61. The electrode needle protection cap 6 is provided with a strip through hole 62 that penetrates the electrode needle protection cap 6 in the radial direction of the electrode needle protection cap 6 and extends along the axial direction.

[0175] In some embodiments, a preset number of strip-shaped clamping arms 63 may be formed in the strip-shaped through hole 62, and the free end of each strip-shaped clamping arm 63 extends toward the direction close to the second through hole 61. The strip-shaped clamping arm 63 can clamp the adjusting tube 3 after elastic deformation. The preset number may include 2.

[0176] In some embodiments, the strip-shaped clamping arms 63 can be symmetrically arranged with respect to each other, and protruding clamping portions 631 are arranged on the inner sides facing each other of the two strip-shaped clamping arms 63, and the clamping surfaces of the clamping portions 631 respectively have semicircular grooves (not shown). When the adjusting tube 3 passes through the second through hole 61, the grooves on the inner surfaces of the clamping portions 631 form a guide channel, and the guide channel of the clamping portion 631 guides the adjusting tube 3 to align and enter the first through hole 43.

[0177] In some embodiments, the adjusting tube 3 can be inserted with the help of the electrode needle protective cap 6. The specific operating steps for installing the adjusting tube 3 are as follows: the operator selects the required model of the adjusting tube 3, inserts the selected adjusting tube 3 from the second through hole 61 of the electrode needle protective cap 6, and presses multiple strip clamping arms 63 at the same time to tighten the adjusting tube 3 centrally, and forms a guide channel to guide the adjusting tube 3 to align with the first through hole 43 of the insertion operating handle 4, thereby realizing the rapid insertion of the adjusting tube 3.

[0178] In some embodiments, the electrode needle protective cap 6 can be used to freely replace the adjustment tube 3 of different lengths, which plays a good guiding role in replacing the adjustment tube 3, facilitates the rapid insertion of the adjustment tube 3 into the operating handle 4, and can quickly obtain the required depth of the electrode needle 1 inserted into the eye.

[0179] In some embodiments, Fig.11A or Fig. 11B As shown, the electrode needle 1 is cylindrical in shape as a whole, and includes an electrode inner pole 21 , an electrode outer pole 23 , and an insulating structure. The insulating structure may include a first insulating layer 22 and a second insulating layer 24 .

[0180] In some embodiments, the cross section of the column structure is, from inside to outside along the radial direction of the electrode needle, the electrode inner pole 21, the first insulating layer 22, the electrode outer pole 23, and the second insulating layer 24, and the central axes Z of the electrode inner pole 21, the first insulating layer 22, the electrode outer pole 23, and the second insulating layer 24 are the same straight line. The electrode inner pole, the first insulating layer, the electrode outer pole, and the second insulating layer form an inner pole region, a first insulating region, an outer pole region, and a second insulating region on the outer surface of the needle tip.

[0181] In some embodiments, the outer diameter range of the electrode needle 1 may include 0.3~0.8mm, wherein the outer diameter range of the electrode inner pole 21 may include 0.1~0.4mm, the outer diameter range of the first insulating layer 22 may include 0.03~0.2mm, the outer diameter range of the electrode outer pole 23 may include 0.05~0.2mm, and the outer diameter range of the second insulating layer thickness 24 may include 0.03~0.2mm.

[0182] In some embodiments, the constituent material of the inner pole may include tungsten, platinum, platinum-iridium alloy, etc. The constituent material of the outer pole may include stainless steel, titanium alloy, for example, 2Cr13, 1Cr13, TC4, etc. The constituent material of the insulating structure may include polyimide, polyetheretherketone, ceramic, parylene, PTFE, glass, ABS, PC, POM, etc.

[0183] In some embodiments, the tip 2 of the electrode needle is a conical structure, and the conical surface of the conical structure is divided into an inner pole region, a first insulating region, an outer pole region and a second insulating region in the direction from the cone tip to the cone bottom. When the radiofrequency ablation device is working, an ablation wave is generated between the inner pole region and the outer pole region.

[0184] In some embodiments, the tip 2 can be formed by grinding, and its length along the axial direction can range from 0.6 to 1.5 mm. The angle between the generatrix of the conical tip 2 and the central axis Z can range from 10 to 20°, preferably 12-16°. In this way, the tip 2 of the electrode needle can meet the strength requirements while being sharp enough, and will not curl or produce burrs due to being too sharp.

[0185] In some embodiments, the electrode 120 may include three or more electrode needles, wherein one of the three or more electrode needles is located at the center as the inner electrode, and the remaining electrode needles are arranged around the electrode needle as the inner electrode as the outer electrode, and insulating material is filled between each electrode needle.

[0186] Please refer to Fig.13 , Fig.13 An example of an electrode including three or more electrode needles is shown in FIG. Fig.10 As shown in the figure, taking the example of a device including five electrode needles, the front end of the electrode 120 is a conical structure, and an electrode inner pole 1321 can be arranged at the tip of the conical structure, and four electrode outer poles 1323 are arranged around the electrode inner pole 1321 on the conical surface of the conical structure, and the rest between the electrode inner pole 1321 and the four electrode outer poles 1323 is a cast insulating structure. It can be understood that Fig.13 The above is only used as an example. In some embodiments, the periphery of the electrode inner pole 1321 can be provided with any number of electrode outer poles, such as 3, 5, 6, 7, etc. In some embodiments, the multiple electrode outer poles can form a regular or irregular shape such as a triangle, a quadrilateral, a pentagon, etc. in the cross section of the electrode. In some embodiments, the electrode inner pole 1321 can be located at a non-central position of the multiple electrode outer poles, such as near the left side or near the right side. In some embodiments, the constituent material of the insulating structure can be the same as the above Fig.11A The insulating structures in the electrode needles 1 shown are made of the same material.

[0187] In some embodiments, Fig.13 The tip of the electrode 120 shown can be formed by grinding. During the grinding process, the tip of the conical needle tip is formed by the inner electrode 1321, and the outer electrode 1323 on the conical surface is exposed during grinding. Fig.13 The diameter size range of the electrode inner pole and the electrode outer pole of the electrode 120 shown may include 0.1-0.3 mm, and the overall size of each electrode needle may be the same as the above-mentioned electrode needle 1.

[0188] In some embodiments, the electrode 120 may include an even number of electrode needles, including a first electrode needle and a second electrode needle with a needle tip, the first electrode needle among the even number of electrode needles is an electrode positive electrode, the second electrode needle is an electrode negative electrode, and the first electrode needle and the second electrode needle are alternately arranged, the first electrode needle and the second electrode needle are both covered with an insulating layer on the periphery, one of the first electrode needle and the second electrode needle is an electrode positive electrode, and the other is an electrode negative electrode.

[0189] See also Fig.14 , the figure shows a schematic diagram of an electrode including an even number of electrode needles. Fig.14As shown, the electrode 120 may be composed of an even number (such as 4, 6, 8, 10, etc.) of electrode needles, and the first electrode needle 14-1 among the even number of electrode needles is the positive electrode, and the second electrode needle 14-2 is the negative electrode. The first electrode needle 14-1 and the second electrode needle 14-2 may be arranged alternately, and the first electrode needle and the second electrode needle are both covered with an insulating layer.

[0190] In some embodiments, the electrode 120 may include four or more electrode needles, and the four or more electrode needles may be arranged in a circular, triangular, polygonal, or other structure in the cross section of the electrode. Preferably, the four or more electrode needles may be arranged in an arc shape (such as a half arc shape, a two-thirds arc shape, a three-quarters arc shape, etc.) and inserted into the operating handle. The arc-shaped electrode needles can better adapt to the shape of the eye tissue. It is worth noting that Fig.14 The structure of the operating handle or housing of the electrode shown may be different from Figure 7 The structure of the operating handle is shown. When the electrode is connected to the ablation host and radio frequency energy is output, an ablation zone can be formed between two adjacent electrode needles, thereby generating ablation waves. The spacing range of the electrode needles arranged at intervals may include 0.3-0.9mm.

[0191] In some embodiments, Fig.14 The size range and constituent materials of the even-numbered electrode needles in the electrode 120 shown may be the same as those of the electrode needles 1. In some embodiments, the even-numbered electrode needles may be arranged in multiple rows.

[0192] In some embodiments, the electrode 120 includes an electrode needle with a tower-shaped front end, and its cross-section includes an electrode inner pole, an insulating layer and an electrode outer pole from the inside to the outside in the radial direction. The electrode inner pole, the insulating layer and the electrode outer pole form an inner pole region, an insulating region and an outer pole region on the tower surface from the top of the tower to the bottom of the tower.

[0193] In some embodiments, the electrode outer pole of the electrode needle with a tower-shaped front end forms a boss at the connection between the tower bottom and the insulating layer, and the boss contacts the eye surface, or the annular table formed between the electrode outer pole and the insulating layer directly contacts the eye surface. Preferably, the boss formed at the connection between the tower bottom and the insulating layer of the electrode outer pole is disc-shaped, and the axial distance from the lower surface of the boss to the needle tip is in the range of 0.5mm-1.8mm.

[0194] Please refer to Fig.15A and 15B , the figure shows an ablation electrode with a stepped electrode needle. Fig.15A and 15BAs shown, the ablation electrode 120 includes an electrode needle 15, the center of the electrode needle 15 is an electrode inner pole 1521, an insulating structure 1522 is provided on the periphery of the electrode inner pole 1521, an electrode outer pole 1523 is sleeved outside the insulating structure 1522, and the electrode inner pole 1521, the insulating structure 1522 and the electrode outer pole 1523 form a step-like structure at the tip of the electrode needle 15 along the axial direction of the electrode needle. In some embodiments, an insulating structure transition portion may be provided between the electrode inner pole 1521 and the insulating structure 1522 to avoid the formation of steps that make it difficult for the electrode needle to penetrate the eye tissue. The outer diameter of the insulating structure 1522 is 0.3-0.8 mm. In some embodiments, the electrode needle 15 may be a non-cylindrical structure.

[0195] like Fig.15A As shown, in some embodiments, at the connection between the tip of the electrode needle 15 and the insulating structure 1522, a boss 1524 protruding from the outer surface of the electrode outer pole 1523 may be formed along the radial direction of the electrode needle. The boss 1524 may be disc-shaped and attached to the patient's ocular surface during ablation. In some embodiments, the boss 1524 may be any shape such as a cuboid, a cube, a cylinder, an irregular body, etc. In some embodiments, the thickness of the boss 1524 (i.e., the length along the axial direction of the electrode needle) may be in the range of 0.1-0.3 mm. In some embodiments, the axial distance from the tip end of the electrode needle 12 to the lower surface of the boss may be in the range of 0.5-1.8 mm.

[0196] like Fig. 15B As shown, in some embodiments, the electrode needle 15 may not be provided with a boss 1523, that is, the table formed between the electrode outer pole 1523 and the insulating structure 1522 directly contacts the eye surface.

[0197] In some embodiments, the electrode needle 15 may only include an inner electrode and an insulating layer around the inner electrode, and the outer electrode is attached to the periphery of the eye to be subjected to radiofrequency ablation in the form of a patch.

[0198] In some embodiments, the electrode 120 may include a sandwich electrode needle 16, which includes an electrode positive electrode, an electrode negative electrode, and an insulating layer disposed between the electrode positive electrode and the electrode negative electrode in a radial direction, wherein the insulating layer forms the tip of the electrode needle. In some embodiments, the sandwich electrode needle 16 may be an electrode needle of a special-shaped structure, or a regular electrode needle of a cylindrical structure with a cone tip.

[0199] Please refer to Fig.16 , the figure shows the electrodes stacked along the radial direction of the electrodes. Fig.16As shown, the electrode needle 16 may have a non-cylindrical structure and a non-conical tip. In some embodiments, the electrode needle 16 may include a first pole 1611, a second pole 1612, and an insulating interlayer 1613 (i.e., an insulating structure) disposed between the first pole and the second pole along the radial direction. The first pole 1611 and the second pole 1612 are respectively the positive electrode and the negative electrode. For example, the first pole is the positive electrode, and the second pole is the negative electrode; or the first pole is the negative electrode, and the second pole is the positive electrode. In some embodiments, the first pole 1611, the second pole 1612, and the insulating clip 1613 may form a hexagonal structure in the cross section of the electrode needle 16. In some embodiments, the thickness of the insulating interlayer 1613 (the length along the radial direction of the electrode needle) may be in the range of 0.1-0.3 mm. In some embodiments, the length of the tip of the electrode needle 16 along its axial direction may be in the range of 0.3-1.5 mm.

[0200] In some embodiments, the constituent material of the insulating structure may include glass, ceramic, basalt, etc. The constituent materials of the first pole and the second pole are the same as those of the electrode needle 1 described above.

[0201] In some embodiments, the electrode needle 1, electrode needle 14, electrode needle 15, and electrode needle 16 can be formed into an insulating structure or an insulating structure and an electrode outer pole in a variety of ways. For example, the electrode needle can form an insulating structure or an insulating structure and an electrode outer pole by means of a coating layer, and form an electrode tip by grinding. For example, the electrode needle can form an insulating structure and a metal electrode outer pole on the needle tip surface of the electrode inner pole by means of vapor deposition and electroplating; in addition, it should be understood that the electrode outer pole and the electrode inner pole in this specification are respectively used as the positive pole and the negative pole during the radiofrequency ablation process, that is, when the inner pole is a positive pole, the outer pole will be a negative pole, or when the inner pole is a negative pole, the outer pole will be a positive pole.

[0202] In some embodiments of the present specification, the radiofrequency ablation device can perform radiofrequency ablation operations more safely and conveniently, and can recommend corresponding treatment plans according to different treatment sites, and can achieve accurate radiofrequency ablation of eye tissues such as ciliary body, trabecular meshwork and iris. For different eye tissues, in order to facilitate the operation of ablation, the morphological structure of the electrode needle can be designed differently, such as the end of the electrode needle that penetrates the eye tissue can be a straight needle, a curved needle with a straight tip, or a curved needle with a curved tip, etc. For example, in some embodiments, the electrode is used to ablate the ciliary body, and its electrode needle 1 is in the form of a straight needle. In some embodiments, the electrode is used to ablate the trabecular meshwork, and its electrode needle is a curved needle with a straight tip.

[0203] It should be understood that Figure 1The RF ablation device and its modules shown can be implemented in various ways. It should be noted that the above description of the RF ablation device and its modules is only for the convenience of description and cannot limit this specification to the scope of the embodiments. It is understandable that for those skilled in the art, after understanding the principle of the system, it is possible to arbitrarily combine the modules or form a subsystem to connect with other modules without deviating from this principle. In some embodiments, Figure 1 The control module, radio frequency module, input / output module, impedance detection module and information reading module disclosed in the specification can be different modules in a system, or one module can realize the functions of two or more modules mentioned above. For example, each module can share a storage module, or each module can have its own storage module. Such variations are all within the protection scope of this specification.

[0204] Furthermore, certain features, structures or characteristics in one or more embodiments of this specification may be appropriately combined.

[0205] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0206] If there is any inconsistency or conflict between the descriptions, definitions, and / or usage of terms in the materials cited in this specification and the contents described in this specification, the descriptions, definitions, and / or usage of terms in this specification shall prevail.

Claims

1. A radiofrequency ablation device for ablating ocular tissue, characterized in that: include: An electrode, comprising an electrode needle with a needle tip, wherein the needle tip of the electrode needle is configured to penetrate into eye tissue; an ablation host connected to the electrode via a transmission line, the ablation host comprising a control module, a radio frequency module and an information reading module; two ends of the radio frequency module are respectively connected to the electrode and the control module, and are configured to provide radio frequency energy to the electrode based on instructions from the control module; Two ends of the information reading module are connected to the electrode and the control module respectively, and are configured to read the electrode information of the electrode and transmit it to the control module.

2. The device according to claim 1, characterized in that The electrode comprises three or more electrode needles, and in a cross section of the electrode, one of the three or more electrode needles is located at the center as an inner electrode, and the remaining electrode needles are arranged as outer electrodes around the electrode needle as the inner electrode, and insulating material is filled between each of the electrode needles; or The electrode comprises an even number of electrode needles, half of which are positive electrodes and the other half are negative electrodes, the positive electrode needles and the negative electrode needles are arranged alternately, and an insulating layer is provided around the periphery of each electrode needle; or The electrode comprises an electrode needle with a tower-shaped front end, and its cross section comprises an electrode inner pole, an insulating layer and an electrode outer pole in sequence from the inside to the outside in the radial direction, and the electrode inner pole, the insulating layer and the electrode outer pole form an inner pole region, an insulating region and an outer pole region in sequence on the tower surface from the tower top to the tower bottom; or The electrode comprises a sandwich electrode needle, which comprises an electrode positive electrode, an electrode negative electrode and an insulating layer arranged between the electrode positive electrode and the electrode negative electrode in a radial direction, and the insulating layer forms the tip of the needle tip of the electrode needle.

3. The device according to claim 2, characterized in that When the electrode includes an even number of electrode needles, the electrode includes a first electrode needle and a second electrode needle with needle tips, the first electrode needle and the second electrode needle are both sheathed with an insulating layer, one of the first electrode needle and the second electrode needle is the positive electrode, and the other is the negative electrode; or, the electrode includes more than four electrode needles, and the more than four electrode needles are arranged in an arc shape on the cross section of the electrode.

4. The device according to claim 2, characterized in that When the electrode includes an electrode needle with a tower-shaped front end, the outer pole of the electrode forms a boss at the connection between the bottom of the tower and the insulating layer, and the boss contacts the surface of the eye; or the annular table surface formed between the outer pole of the electrode and the insulating layer directly contacts the surface of the eye.

5. The device according to claim 4, characterized in that The boss formed at the connection between the tower bottom and the insulating layer of the electrode outer pole is disc-shaped, and the axial distance from the lower surface of the boss to the needle tip is in the range of 0.5mm-1.8mm.

6. The device according to claim 1, characterized in that The tip of the electrode needle is a conical structure, and the conical surface of the conical structure is divided into an inner pole region, a first insulating region, an outer pole region and a second insulating region in the direction from the cone tip to the cone bottom. When the radiofrequency ablation device is working, an ablation wave is generated between the inner pole region and the outer pole region.

7. The device according to claim 6, characterized in that The electrode needle is cylindrical in shape as a whole, and its cross section includes an electrode inner pole, a first insulating layer, an electrode outer pole, and a second insulating layer from the inside to the outside in the radial direction. The electrode inner pole, the first insulating layer, the electrode outer pole, and the second insulating layer form the inner pole region, the first insulating region, the outer pole region, and the second insulating region on the outer surface of the needle tip.

8. The device according to any one of claims 1 to 7, characterized in that: The electrode comprises at least one of the following: An operating handle, in which the electrode needle is installed; An adjusting component, inserted into the outer surface of the electrode needle and movable axially relative to the electrode needle, for adjusting the length of the electrode needle exposed from the adjusting component; The electrode needle protection cap is a hollow conical structure and is used to cover the electrode needle.

9. The device according to claim 8, characterized in that The electrode further comprises a storage chip, and the storage chip is arranged inside the operating handle, or integrated into a plug of a plug-in cable connecting the operating handle and the ablation host.

10. The device according to claim 1, characterized in that The radio frequency module of the ablation host further includes a radio frequency power supply, a radio frequency signal source and a power amplification module; Among them, the input end of the RF signal source is connected to the control module, the output end is connected to the power amplifier module, the other input end of the power amplifier module is connected to the RF power supply, and the output end is connected to the electrode; the power amplifier module is configured to amplify the direct current generated by the RF power supply to form RF energy under the RF signal output by the RF signal source.

11. The device according to claim 10, characterized in that The RF power supply is a voltage-adjustable power supply, which is configured to adjust the voltage to a target value based on the instruction sent by the control module so that the RF module generates a RF signal with a predetermined output power.

12. The device according to claim 1, characterized in that The ablation host also includes: An impedance monitoring module, one end of which is connected to the control module, and the other end of which is connected to the electrode through an electrode connection switching unit, and is configured to monitor the impedance information of the target tissue before and after the RF energy output stops; A voltage and current feedback module is connected to the control module and the electrode respectively, and is configured to monitor the impedance information of the target tissue during the output of the radio frequency energy.

13. The device according to claim 12, characterized in that The electrode connection switching unit includes a single-pole double-throw switch, and the single-pole double-throw switch is used to switch the electrode connected to the ablation host between being connected to the radio frequency module or the impedance monitoring module; wherein, Before the RF energy is output or after the output stops, the single-pole double-throw switch is connected to the impedance monitoring module, and when the output of the RF energy is turned on, the single-pole double-throw switch is connected to the RF module.

14. The device according to claim 1, characterized in that The ablation host further includes at least one of the following: A rotating handle, comprising a handle protrusion, a handle shaft and a handle buckle, wherein the rotating handle is connected to the ablation main unit via the handle shaft; A fan heat dissipation hole is provided on a side of the ablation host close to the fan, and is used to remove the heat generated by the ablation host; The mainboard shielding cover is arranged inside the shell of the ablation host to shield the electromagnetic interference from the outside to the inside of the ablation host or from the inside of the ablation host to the outside.

15. The device according to claim 1, characterized in that The device also includes: A host trolley, the host trolley is configured to carry the ablation host, and the host trolley includes at least one of the following: A front handle, provided at the front end of the host trolley; A rear push handle, arranged at the rear end of the host trolley; A storage box, arranged at the rear end bottom of the host trolley; A locking member is arranged above the bearing platform of the main engine trolley, and a knob connected to the locking member is arranged at the bottom of the bearing platform.

16. The device according to claim 15, characterized in that The ablation host also includes a fixing part, which matches the locking part on the host trolley. When the ablation host is placed on the supporting platform of the host trolley, the fixing part and the locking part can be tightly matched by operating the knob of the locking part, thereby fixing the ablation host on the host trolley.

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