CN117883177A

CN117883177A - RF energy generating device and RF energy therapy system

Info

Publication number: CN117883177A
Application number: CN202410044919.4A
Authority: CN
Inventors: 彭亚辉; 马小强; 陆子幸; 沈刘娉
Original assignee: Shanghai Microport EP MedTech Co Ltd
Current assignee: Shanghai Microport EP MedTech Co Ltd
Priority date: 2024-01-11
Filing date: 2024-01-11
Publication date: 2024-04-16

Abstract

The invention provides a radio frequency energy generating device and a radio frequency energy treatment system, wherein the radio frequency energy generating device comprises a detection and control module, an adjustable power supply, a driving circuit, a radio frequency conversion circuit, an output matching circuit and a radio frequency current detection circuit; the adjustable power supply and the driving circuit are both connected with the input end of the radio frequency conversion circuit, and the radio frequency current detection circuit and the output matching circuit are both connected with the output end of the radio frequency conversion circuit; the detection and control module is configured to generate a radio frequency signal source with a radio frequency working frequency and send the radio frequency signal source to the driving circuit so as to control the radio frequency conversion circuit to convert direct current output by the adjustable power supply into alternating current through the driving circuit, thereby outputting radio frequency energy; the output matching circuit is configured to adjust a waveform shape of the radio frequency energy output by the radio frequency conversion circuit. The invention can solve the problems of high cost and difficult maintenance of the existing radio frequency energy generating device.

Description

RF energy generating device and RF energy therapy system

Technical Field

The invention relates to the technical field of medical equipment, in particular to a radio frequency energy generating device and a radio frequency energy treatment system.

Background

Plasma radiofrequency ablation is to introduce radiofrequency energy into human tissue through a corresponding plasma electrode, the human tissue is usually injected with normal saline as electrolyte, the radiofrequency energy can excite charged ions in the electrolyte to generate low-temperature plasma for surgical treatment, or the charged ions can generate heat for tissue coagulation aiming at a sheet by using lower radiofrequency energy. Since the effect of the charged particles in the plasma is limited to the surface layer of the target tissue and is achieved at relatively low temperatures, thermal damage to surrounding tissue is low. Devices and equipment based on radiofrequency plasma ablation are therefore widely used in minimally invasive interventional procedures, such as soft tissue ablation in arthroscopic surgery, ablation of conductive nerves for the treatment of chronic pain. The current radio frequency plasma ablation equipment occupies a main market share by foreign manufacturers, the equipment and corresponding consumables are high in selling price, the maintenance is difficult, the use cost is high, and the burden of patients and doctors is increased.

The current radio frequency plasma ablation equipment cannot provide a friendly user operation interface, parameter setting and information display cannot be conveniently carried out, and more inconvenience is brought to the operation. The inconvenience of operation can prolong the operation time, increase the pain of patients and reduce the operation efficiency. In addition, in the prior art, the use state of consumable electrodes cannot be accurately estimated, so that short circuit or electrode falling off can be possibly caused by electrode damage, medical accidents can be caused by heavy damage, and equipment can be damaged or the service life of the equipment can be reduced.

It should be noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a radio frequency energy generating device and a radio frequency energy treatment system, which can solve the problems of high cost and difficult maintenance of the existing radio frequency energy generating device.

In order to solve the technical problems, the invention provides a radio frequency energy generating device, which comprises a detection and control module, an adjustable power supply, a driving circuit, a radio frequency conversion circuit, an output matching circuit and a radio frequency current detection circuit;

The adjustable power supply, the driving circuit and the radio frequency current detection circuit are all connected with the detection and control module;

The output ends of the adjustable power supply and the driving circuit are connected with the input end of the radio frequency conversion circuit, and the input ends of the radio frequency current detection circuit and the output matching circuit are connected with the output end of the radio frequency conversion circuit;

The detection and control module is configured to generate a radio frequency signal source with a radio frequency working frequency and send the radio frequency signal source to the driving circuit so as to control the radio frequency conversion circuit to convert direct current output by the adjustable power supply into alternating current through the driving circuit, thereby outputting radio frequency energy;

The output matching circuit is configured to adjust the waveform form of the radio frequency energy output by the radio frequency conversion circuit and filter the direct current component in the radio frequency energy;

The radio frequency current detection circuit is configured to measure the output radio frequency current of the radio frequency conversion circuit and transmit the output radio frequency current to the detection and control module.

Optionally, the radio frequency conversion circuit includes a switch circuit and a transformer, the input end of the switch circuit is connected with the adjustable power supply and the output end of the driving circuit, the output end of the switch circuit is connected with the input end of the transformer, the output end of the transformer is connected with the radio frequency current detection circuit and the input end of the output matching circuit, the switch circuit includes a plurality of switch elements, the switch elements are configured to complete switching and switching actions under the control of the driving circuit so as to convert direct current output by the adjustable power supply into alternating current, and the transformer is configured to regulate the voltage of the alternating current output by the switch circuit and realize electrical isolation so as to realize safe output of radio frequency energy.

Optionally, the radio frequency current detection circuit includes a current sensor, the current sensor has an electrical isolation structure, an input side of the current sensor is connected with an output end of the radio frequency conversion circuit, the current sensor is configured to measure an output radio frequency current of the radio frequency conversion circuit and transmit the output radio frequency current to the detection and control module, and the electrical isolation structure is configured to electrically isolate the radio frequency current detection circuit and the radio frequency conversion circuit.

Optionally, the detection and control module is further configured to send a prompt or alarm signal and adjust or cut off the output of the radio frequency energy when the output radio frequency current measured by the radio frequency current detection circuit exceeds a preset current.

Optionally, the radio frequency energy generating device further includes a power supply detection module connected to the detection and control module, the power supply detection module includes a power supply voltage detection circuit and a power supply current detection circuit, the power supply voltage detection circuit and the power supply current detection circuit are both connected to the output end of the adjustable power supply, the power supply voltage detection circuit is configured to measure the output voltage of the adjustable power supply and transmit the output voltage to the detection and control module, and the current detection circuit is configured to measure the output current of the adjustable power supply and transmit the output current to the detection and control module.

Optionally, the output end of the adjustable power supply is provided with an output voltage adjustment interface, and the detection and control module is further configured to adjust the output voltage of the adjustable power supply in real time through the output voltage adjustment interface.

Optionally, the output end of the adjustable power supply is further provided with an output current limit value setting interface, and the detection and control module is further configured to set the output current limit value of the adjustable power supply through the output current limit value setting interface.

Optionally, the detection and control module is further configured to adjust an output current limit value of the adjustable power supply according to an output voltage of the adjustable power supply.

Optionally, the radio frequency energy generating device further comprises a man-machine interaction module connected with the detection and control module, wherein the man-machine interaction module is configured to display equipment state and/or equipment information of the radio frequency energy generating device, and set equipment parameters and switch control of radio frequency energy output by a user;

The detection and control module is also configured to adjust output parameters of the adjustable power supply according to the equipment parameters transmitted by the man-machine interaction module, and to control the on/off of the adjustable power supply according to the on/off control signals of the radio frequency energy output transmitted by the man-machine interaction module.

In order to solve the technical problems, the invention also provides a radio frequency energy treatment system, which comprises an ablation device and any one of the radio frequency energy generation devices, wherein the ablation device is connected with a radio frequency energy output interface of the radio frequency energy generation device so as to transmit radio frequency energy output by the radio frequency energy generation device.

Optionally, the ablation device is provided with an identification circuit, and the detection and control module is further configured to obtain type information of the ablation device according to the identification circuit, obtain preset service life information of the ablation device according to the type information of the ablation device, and evaluate the use state of the ablation device according to the preset service life information and the use time length information of the ablation device.

Optionally, the detection and control module is further configured to send a prompt message when the duty cycle of the usage time of the ablation device relative to the preset service life of the ablation device reaches a first preset percentage; and when the duty ratio of the service life of the ablation device relative to the preset service life of the ablation device reaches a second preset percentage, sending out alarm information and stopping outputting the radio frequency energy, wherein the second preset percentage is larger than the first preset percentage.

Optionally, the identification circuit is configured to detect a parameter value related to the type of the ablation device and send the parameter value to the detection and control module, and the detection and control module is further configured to obtain type information of the ablation device according to the parameter value.

Optionally, the identification circuit includes a memory configured to store at least one of type information, usage time length information, preset service life information, production time information, and product number information of the ablation device, and the detection and control module is further configured to record a first activation time of the ablation device, to acquire the activation time information of the ablation device and store the activation time information in the memory, and to accumulate the usage time length of the ablation device in real time during the usage of the ablation device, and to write the accumulated usage time length into the memory to update the usage time length information stored in the memory.

Optionally, the detection and control module is further configured to perform the following operations after the ablation device is connected to the rf energy output interface of the rf energy generating device:

Judging whether the ablation device is positioned in the effective period according to the starting time information;

if not, sending out alarm information and limiting the use of the ablation device.

Optionally, the ablation device includes radio frequency plasma ablation electrode, radio frequency plasma ablation electrode is from distal end to proximal end including head end electrode, insulator, main body electrode, insulating section, handle, cable and the connector that link to each other in proper order, be equipped with in the cable with the first electrode wire that the head end electrode links to each other and with the second electrode wire that the main body electrode links to each other.

Optionally, the insulation section includes a metal tube and an insulation sleeve sleeved outside the metal tube, a proximal end of the metal tube is connected to a distal end of the handle, and a distal end of the metal tube is connected to a proximal end of the main body electrode.

Optionally, the ablation device further comprises a temperature sensor, the temperature sensor is arranged in the insulator, and a temperature measuring wire connected with the temperature sensor is further arranged in the cable.

Optionally, the ablation device further comprises a liquid line for injecting physiological saline and/or drug inward or discharging waste liquid and/or impurities outward.

Compared with the prior art, the radio frequency energy generating device and the radio frequency energy treatment system provided by the invention have the following beneficial effects:

the invention provides a radio frequency energy generating device which comprises a detection and control module, an adjustable power supply, a driving circuit, a radio frequency conversion circuit, an output matching circuit and a radio frequency current detection circuit, wherein the detection and control module is connected with the adjustable power supply; the adjustable power supply, the driving circuit and the radio frequency current detection circuit are all connected with the detection and control module; the output ends of the adjustable power supply and the driving circuit are connected with the input end of the radio frequency conversion circuit, and the input ends of the radio frequency current detection circuit and the output matching circuit are connected with the output end of the radio frequency conversion circuit; the detection and control module is configured to generate a radio frequency signal source with a radio frequency working frequency and send the radio frequency signal source to the driving circuit so as to control the radio frequency conversion circuit to convert direct current output by the adjustable power supply into alternating current through the driving circuit, thereby outputting radio frequency energy; the output matching circuit is configured to adjust the waveform form of the radio frequency energy output by the radio frequency conversion circuit and filter the direct current component in the radio frequency energy; the radio frequency current detection circuit is configured to measure the output radio frequency current of the radio frequency conversion circuit and transmit the output radio frequency current to the detection and control module. Therefore, the radio frequency energy generating device provided by the invention adopts a modularized design, particularly the radio frequency power control part (comprising the detection and control module and the adjustable power supply) adopts a modularized design, so that the adjustment of equipment parameters of the radio frequency energy generating device is more convenient, the structure is more reliable, the radio frequency energy generating device is easy to design, produce and maintain, the reliability and maintainability of the radio frequency energy generating device are improved, and the overall cost is effectively reduced. In addition, the waveform of the radio frequency energy output by the radio frequency conversion circuit is regulated by the output matching circuit, and the direct current component in the radio frequency energy is filtered, so that the output power of the radio frequency energy generation device provided by the invention can be improved, the direct current component in the output radio frequency current of the radio frequency conversion circuit can be effectively isolated, and the safety performance of the radio frequency energy generation device provided by the invention in the use process can be effectively improved. In addition, the radio frequency current detection circuit is arranged at the output end of the radio frequency conversion circuit, so that the output radio frequency current of the radio frequency conversion circuit can be monitored in real time, and the safety of the radio frequency energy generation device in the use process is further improved.

Because the rf energy treatment system provided by the present invention includes the rf energy generating device provided by the present invention, the rf energy treatment system provided by the present invention has at least all the advantages of the rf energy generating device provided by the present invention, and the description of the advantages of the rf energy generating device provided by the present invention can be referred to above, so that the description thereof will not be repeated here. In addition, the radio frequency energy treatment system provided by the invention can realize the evaluation of the use state of the ablation device (such as a radio frequency plasma ablation electrode), so that the human body injury caused by the over-life use of the ablation device can be effectively avoided, and the safety of the operation can be obviously improved.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a RF energy generating device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an adjustable power supply according to an embodiment of the present invention;

FIG. 3 is a schematic view of an external structure of a RF energy generating device according to an embodiment of the present invention;

FIG. 4 is a schematic view of an overall structure of an ablation device according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of an evaluation flow of usage status of an ablation device according to an embodiment of the present invention.

Wherein, the reference numerals are as follows:

A detection and control module-110; an adjustable power supply-120; a driving circuit-130; a radio frequency conversion circuit-140; an output matching circuit-150; capacitance-C01; resistance-R01; inductance-L01; a radio frequency current detection circuit-160; a power detection module-170; the man-machine interaction module is 180; a display-181; a housing-190; a radio frequency energy output interface-191; a switch control interface-192;

a headend electrode-210; insulator-220; a main body electrode-230; an insulating section-240; a handle-250; a cable-260; a connector-270; a first electrode lead-281; a second electrode lead-282; the circuit-290 is identified.

Detailed Description

The RF energy generating device and RF energy therapy system according to the present invention are described in further detail below with reference to the accompanying drawings and detailed description. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the invention. For a better understanding of the invention with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure for the understanding and reading of the present disclosure, and are not intended to limit the scope of the invention, which is defined by the appended claims, and any structural modifications, proportional changes, or dimensional adjustments, which may be made by the present disclosure, should fall within the scope of the present disclosure under the same or similar circumstances as the effects and objectives attained by the present invention. Specific design features of the invention disclosed herein, including for example, specific dimensions, orientations, positions, and configurations, will be determined in part by the specific intended application and use environment. In the embodiments described below, the same reference numerals are used in common between the drawings to denote the same parts or parts having the same functions, and the repetitive description thereof may be omitted. In this specification, like reference numerals and letters are used to designate like items, and thus once an item is defined in one drawing, no further discussion thereof is necessary in subsequent drawings. Additionally, if a method described herein comprises a series of steps, and the order of the steps presented herein is not necessarily the only order in which the steps may be performed, and some of the described steps may be omitted and/or some other steps not described herein may be added to the method.

It should be noted that in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, or order, to indicate or implying any relative importance or order among such features. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The singular forms "a," an, "and" the "include plural referents, the term" or "is generally used in the sense of comprising" and/or "and the term" several "is generally used in the sense of comprising" at least one, "and the term" at least two "is generally used in the sense of comprising" two or more, "and the term" plurality "is generally used in the sense of comprising" at least two.

It should also be noted that, in the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In addition, in the present invention, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The invention provides a radio frequency energy generating device and a radio frequency energy treatment system, which can solve the problems of high cost and difficult maintenance of the existing radio frequency energy generating device. It should be noted that, as will be understood by those skilled in the art, the term "proximal" herein refers to an end proximal to the operator, and the term "distal" refers to an end proximal to the area to be treated.

In order to achieve the above-mentioned idea, the present invention provides a rf energy generating device, please refer to fig. 1, which is a schematic diagram of an overall structure of a rf energy generating device according to an embodiment of the present invention. As shown in fig. 1, the rf energy generating apparatus provided by the present invention includes a detection and control module 110, an adjustable power supply 120, a driving circuit 130, a rf conversion circuit 140, an output matching circuit 150, and a rf current detection circuit 160; the adjustable power supply 120, the driving circuit 130 and the rf current detection circuit 160 are all connected to the detection and control module 110; the output ends of the adjustable power supply 120 and the driving circuit 130 are connected to the input end of the rf conversion circuit 140, and the input ends of the rf current detection circuit 160 and the output matching circuit 150 are connected to the output end of the rf conversion circuit 140; the detecting and controlling module 110 is configured to generate a radio frequency signal source (i.e. a frequency signal) with a radio frequency working frequency, and send the radio frequency signal source to the driving circuit 130, so as to control the radio frequency converting circuit 140 to convert the direct current output by the adjustable power supply 120 into alternating current through the driving circuit 130, thereby outputting radio frequency energy; the output matching circuit 150 is configured to adjust the waveform of the rf energy output by the rf conversion circuit 140, and filter out the dc component in the rf energy; the rf current detection circuit 160 is configured to measure the rf current output from the rf conversion circuit 140 and transmit it to the detection and control module 110.

Therefore, the radio frequency energy generating device provided by the invention adopts a modularized design, particularly the radio frequency power control part (comprising the detection and control module 110 and the adjustable power supply 120) adopts a modularized design, so that the adjustment of equipment parameters of the radio frequency energy generating device is more convenient and the structure is more reliable, the radio frequency energy generating device is easy to design, produce and maintain, the reliability and maintainability of the radio frequency energy generating device are improved, and the overall cost is effectively reduced. In addition, the output matching circuit 150 is arranged to adjust the waveform of the radio frequency energy output by the radio frequency conversion circuit 140 and filter the direct current component in the radio frequency energy, so that the output power of the radio frequency energy generation device provided by the invention can be improved, the direct current component in the output radio frequency current of the radio frequency conversion circuit 140 can be effectively isolated, and the safety performance of the radio frequency energy generation device provided by the invention in the use process can be effectively improved. In addition, the rf current detection circuit 160 is disposed at the output end of the rf conversion circuit 140, so that the rf current output by the rf conversion circuit 140 can be monitored in real time, thereby further improving the safety of the rf energy generating device provided by the invention in use.

It should be noted that, as those skilled in the art will appreciate, ZL in fig. 1 represents a radio frequency load, that is, an object to which radio frequency energy acts, for example, the radio frequency load may be a human body. It should be further noted that, as those skilled in the art can understand, the rf energy generating device provided by the present invention may cooperate with a corresponding plasma ablation electrode to generate plasma under a proper working condition so as to achieve ablation of biological tissue, or generate heat so as to achieve a coagulation function.

In some exemplary embodiments, the detection and control module 110 includes digital logic circuits such as a frequency divider circuit, a microcontroller, or an FPGA (field programmable gate array) for generating the radio frequency signal source. Further, the frequency dividing circuit includes an oscillating circuit configured to generate an initial frequency signal of a high frequency and a counter (frequency divider) configured to divide the initial frequency signal of the high frequency to generate a radio frequency signal source of a radio frequency operating frequency.

Specifically, the oscillating circuit may include a high-precision RC circuit and a corresponding frequency generator, and a high-precision and high-stability crystal oscillating source. Further, the details of how the counter (frequency divider) divides the high-frequency initial frequency signal to generate the rf signal source of the rf operating frequency can be referred to as related art known to those skilled in the art, and will not be described herein.

It should be noted that, as those skilled in the art can understand, the specific content of how to generate the rf signal source through a digital logic circuit such as a Microcontroller (MCU) or an FPGA (field programmable gate array) may refer to the related art known to those skilled in the art, and will not be described herein.

Referring to fig. 2, a schematic structure of an adjustable power supply 120 according to an embodiment of the invention is shown. In some exemplary embodiments, the adjustable power source 120 is an AC/DC (alternating current/direct current) power source, the input of the adjustable power source 120 may be 220V of alternating current, the output voltage of the adjustable power source 120 ranges from 10V to 60V, and the maximum direct current output by the adjustable power source 120 is not less than 10A. Therefore, through the arrangement, the power of the radio frequency energy output by the radio frequency energy generating device provided by the invention can be effectively ensured so as to meet the clinical use requirement.

In some exemplary embodiments, the rf conversion circuit 140 includes a switching circuit (not shown) and a transformer (not shown), wherein an input terminal of the switching circuit is connected to the adjustable power supply 120 and an output terminal of the driving circuit 130, an output terminal of the switching circuit is connected to an input terminal of the transformer, an output terminal of the transformer is connected to the rf current detection circuit 160 and an input terminal of the output matching circuit 150, and the switching circuit includes a plurality of switching elements configured to perform switching operations under the control of the driving circuit 130 to convert dc power output from the adjustable power supply 120 into ac power, and the transformer (high frequency transformer) is configured to regulate and electrically isolate the voltage of the ac power output from the switching circuit to achieve safe output of rf energy. Therefore, by setting the radio frequency conversion circuit 140 to a circuit structure including a switch circuit and a transformer (high frequency transformer), not only the safe output of radio frequency energy can be effectively realized, but also the electrical isolation of radio frequency energy can be realized, and meanwhile, the overall structure of the radio frequency energy generating device provided by the invention can be further simplified.

In particular, the switching circuit may be, but not limited to, a full-bridge switching circuit, and the specific structure and operation principle of the switching circuit and the transformer may be referred to as related art known to those skilled in the art, so that a detailed description of the specific structure and operation principle of the switching circuit and the transformer is omitted herein. It should be further noted that, as those skilled in the art will appreciate, the waveform of the radio frequency energy is typically a square wave, sine wave, pulse wave or a converted energy waveform of 100kHz-500 kHz.

In some exemplary embodiments, the driving circuit 130 is configured to convert the rf signal source (frequency signal) into two sets of rf driving signals with complementary phases, so that the plurality of switching elements in the switching circuit in the rf conversion circuit 140 can be driven to perform on/off actions by the two sets of rf driving signals with complementary phases.

With continued reference to fig. 1, in some exemplary embodiments, as shown in fig. 1, the output matching circuit 150 includes a capacitor C01, a resistor R01, and an inductor L01, where one end of the capacitor C01 is connected to the output end of the radio frequency conversion circuit 140, and the other end of the capacitor C01 is simultaneously connected to the resistor R01 and the inductor L01, and the resistor R01 and the inductor L01 are connected in parallel. Therefore, the capacitor C01 can effectively isolate the dc component in the output rf current of the rf conversion circuit 140, so as to effectively improve the safety of the rf energy generating device provided by the invention in the use process; the waveform of the radio frequency energy can be effectively regulated through the resistor R01 and the inductor L01 which are connected in parallel.

It should be noted that, as will be understood by those skilled in the art, the output matching circuit 150 may use other circuit structures capable of achieving the same effect, and specific reference is made to related art known to those skilled in the art, and not listed here.

In some exemplary embodiments, the rf current detection circuit 160 includes a current sensor having an electrical isolation structure with an input side connected to the output of the rf conversion circuit 140, the current sensor configured to measure the output rf current of the rf conversion circuit 140 and transmit to the detection and control module 110, and the electrical isolation structure configured to electrically isolate the rf current detection circuit 160 and the rf conversion circuit 140.

Specifically, the electrical isolation structure is a special measurement amplifying circuit, and there is no direct circuit coupling between the input and output and the power circuit, i.e. the signal has no common ground during transmission, and the rf current detection circuit 160 is isolated from the rf conversion circuit 140 by breaking the ground loop. In addition, the electrical isolation structure can transmit, convert, isolate, amplify and remotely transmit the current signal, and the radio frequency current output by the radio frequency current detection circuit 160 can be monitored by matching with the current sensor.

In some exemplary embodiments, the detection and control module 110 is further configured to send a prompt or alarm signal and adjust or cut off the output of rf energy when the output rf current measured by the rf current detection circuit 160 exceeds a preset current. Therefore, when the output rf current of the rf conversion circuit 140 exceeds the preset current, a prompt or alarm signal is sent out and the output of rf energy is reduced or cut off, so that the patient can be effectively prevented from being damaged due to the overlarge rf current flowing through the body of the patient, and the safety in the operation process can be further improved. It should be noted that, as those skilled in the art will appreciate, the preset current should be less than the maximum safe current value that can be borne by the human body.

Specifically, the detection and control module 110 includes a comparator or a controller, through which the rf current value measured by the rf current detection circuit 160 can be compared with the preset current to determine whether the output rf current of the rf conversion circuit 140 exceeds the preset current, and when it is determined that the output rf current of the rf conversion circuit 140 exceeds the preset current, a protection circuit and/or a control circuit in the detection and control module 110 can send out a prompt or alarm signal and reduce or cut off the output of rf energy.

In some exemplary embodiments, the rf energy generating device further includes a power detection module 170 connected to the detection and control module 110, where the power detection module 170 includes a power voltage detection circuit (not shown) and a power current detection circuit (not shown), where the power voltage detection circuit and the power current detection circuit are both connected to the output of the adjustable power supply 120, where the power voltage detection circuit is configured to measure the output voltage of the adjustable power supply 120 and transmit the output voltage to the detection and control module 110, and where the current detection circuit is configured to measure the output current of the adjustable power supply 120 and transmit the output current to the detection and control module 110. Thus, the output voltage of the adjustable power supply 120 can be monitored in real time by the power supply voltage detection circuit; the output current of the adjustable power supply 120 can be monitored in real time by the power supply current detection circuit.

In some exemplary embodiments, the output terminal of the adjustable power supply 120 has an output voltage adjustment interface (not shown in the figure), and the detection and control module 110 is further configured to adjust the output voltage of the adjustable power supply 120 in real time through the output voltage adjustment interface. Therefore, by adjusting the output voltage of the adjustable power supply 120 in real time, the output voltage of the adjustable power supply 120 can be effectively ensured not to exceed the corresponding output voltage limit value, so that the stability of the adjustable power supply 120 in the use process can be effectively ensured.

In some exemplary embodiments, the output terminal of the adjustable power supply 120 further has an output current limit value setting interface (not shown in the figure), and the detection and control module 110 is further configured to set the output current limit value of the adjustable power supply 120 through the output current limit value setting interface. Therefore, the controller and its accessory circuits in the detection and control module 110 can set the output current limit value of the adjustable power supply 120 through the output current limit value setting interface, so that the rf energy generating device provided by the invention can be suitable for different treatment requirements.

Further, since the output current of the adjustable power supply 120 has a correlation with the output rf current of the rf conversion circuit 140, the rf power finally output is smaller than the power provided by the dc power output by the adjustable power supply 120, usually due to the loss of the rf conversion circuit 140. Meanwhile, since the device (i.e., the energy generating means) allows a large power or current to be output in a short time, the output current limit value of the adjustable power supply 120 generally leaves a margin. The current relationship calculated by the power is as follows: the output radio frequency current is less than or equal to the controller limit/protection current (i.e., the preset current) is less than or equal to the direct current power supply limit current (i.e., the output current limit value of the power supply 120) is less than or equal to the power supply maximum allowable output current.

In some exemplary embodiments, the detection and control module 110 is further configured to adjust the output current limit value of the adjustable power supply 120 according to the output voltage of the adjustable power supply 120. Specifically, when the output voltage of the adjustable power supply 120 is low, the output current limit value of the adjustable power supply 120 is increased; when the output voltage of the adjustable power supply 120 is higher, the output current limit value of the adjustable power supply 120 is reduced, so as to ensure that the output power of the adjustable power supply 120 does not exceed the maximum output power, and the output current of the adjustable power supply 120 does not exceed the maximum output current.

In some exemplary embodiments, the detection and control module 110 is further configured to control the adjustable power supply 120 to operate in a constant current output mode when the output current of the adjustable power supply 120 is equal to the output current limit value of the adjustable power supply 120. Therefore, by controlling the adjustable power supply 120 to operate in the constant current output mode when the output current of the adjustable power supply 120 is equal to the output current limit value of the adjustable power supply 120, it is possible to effectively ensure that the output current of the adjustable power supply 120 is less than or equal to the output current limit value, and the output voltage of the adjustable power supply 120 is less than or equal to the output voltage limit value.

With continued reference to fig. 1, in some exemplary embodiments, as shown in fig. 1, the rf energy generating apparatus further includes a man-machine interaction module 180 connected to the detection and control module 110, where the man-machine interaction module 180 is configured to display a device state and/or device information of the rf energy generating apparatus, and provide a user with on/off control of setting device parameters and rf energy output. Therefore, the man-machine interaction module 180 can conveniently perform parameter setting, information display and on-off control of radio frequency energy output, thereby bringing convenience to operation, further being beneficial to shortening operation time, relieving pain of patients and improving operation efficiency. It should be noted that, as understood by those skilled in the art, the device state includes whether the rf energy generating apparatus currently outputs rf energy, a working gear, whether an abnormality occurs, and the like; the equipment information comprises type information, maximum output power information and the like of the radio frequency energy generating device; the device parameters include the mode of operation of the radiofrequency energy generating device (e.g., cutting mode or coagulation mode), the operating gear, etc. Specifically, the man-machine interaction module 180 may be composed of a display 181 (see fig. 3), buttons, foot switches, and the like.

In some exemplary embodiments, the detection and control module 110 is further configured to adjust the output parameters of the adjustable power supply 120 according to the device parameters transmitted by the man-machine interaction module 180, and to control the adjustable power supply 120 to be turned on and off according to the on and off control signals of the rf energy output transmitted by the man-machine interaction module 180. Therefore, the output voltage, the output power and/or the output current of the adjustable power supply 120 are adjusted in real time according to the equipment parameters set by the user, so that the output radio frequency energy can be adjusted, the actual operation requirement can be better met, and the treatment effect can be improved; the on/off control of the rf energy output can be effectively realized by the on/off control of the adjustable power supply 120, which is more convenient for operation.

Fig. 3 is a schematic view showing an appearance structure of a rf energy generating device according to an embodiment of the invention. As shown in fig. 3, the radio frequency energy generating device provided by the present invention further includes a housing 190, the detection and control module 110, the adjustable power supply 120, the driving circuit 130, the radio frequency conversion circuit 140, the output matching circuit 150, the radio frequency current detection circuit 160 and the power supply detection module 170 are all located in the housing 190, the man-machine interaction module 180 is disposed on the housing 190, a radio frequency energy output interface 191 is disposed on the housing 190, the radio frequency energy output interface 191 is connected with an output end of the output matching circuit 150, and the radio frequency energy output interface 191 is configured to be connected with an ablation device so as to output radio frequency energy to the ablation device. Therefore, by arranging the housing 190, the detection and control module 110, the adjustable power supply 120, the driving circuit 130, the rf conversion circuit 140, the output matching circuit 150, the rf current detection circuit 160 and the power supply detection module 170 can be sealed in the housing 190, so that damage to the circuit caused by external water and gas can be effectively prevented, and the service life of the rf energy generating device provided by the invention can be prolonged.

With continued reference to fig. 3, in some exemplary embodiments, as shown in fig. 3, a switch control interface 192 is further provided on the housing 190 and coupled to the detection and control module 110, the switch control interface 192 being configured to start or stop the output of rf energy. In particular, the switch control interface 192 may be connected to a foot switch, whereby a user may control the switching on and off of the rf energy output through the foot switch, thereby facilitating operation.

In some exemplary embodiments, the detection and control module 110 further includes a storage device and a timing module, so that the radio frequency energy generating device provided by the present invention can have a certain data storage function through the storage device, and the radio frequency energy generating device provided by the present invention can have a certain timing function through the timing module.

To achieve the above-mentioned idea, the present invention further provides a radiofrequency energy therapy system, where the radiofrequency energy therapy system includes an ablation device and the radiofrequency energy generating device described above, and the ablation device is connected to the radiofrequency energy output interface 191 of the radiofrequency energy generating device, so as to transmit the radiofrequency energy output by the radiofrequency energy generating device. Because the rf energy treatment system provided by the present invention includes the rf energy generating device provided by the present invention, the rf energy treatment system provided by the present invention has at least all the advantages of the rf energy generating device provided by the present invention, and the description of the advantages of the rf energy generating device provided by the present invention can be referred to above, so that the description of the advantages of the rf energy treatment system provided by the present invention will not be repeated herein. It should be noted that in some embodiments, the ablation device may include a radiofrequency plasma ablation electrode, and in other embodiments, the ablation device may include an ablation catheter as known to those skilled in the art.

Please continue to refer to fig. 4, which is a schematic diagram illustrating an overall structure of an ablation device according to an embodiment of the present invention. As shown in fig. 4, the ablation device includes a radiofrequency plasma ablation electrode, the radiofrequency plasma ablation electrode includes, from a distal end to a proximal end, a head end electrode 210, an insulator 220, a main body electrode 230, an insulation section 240, a handle 250, a cable 260 and a connector 270, a first electrode lead 281 connected to the head end electrode 210 and a second electrode lead 282 connected to the main body electrode 230 are disposed in the cable 260, a proximal end of the first electrode lead 281 is connected to the connector 270, a distal end of the first electrode lead 281 is connected to the head end electrode 210, a proximal end of the second electrode lead 282 is connected to the connector 270, and a distal end of the second electrode lead 282 is connected to the main body electrode 230. Thus, the connector 270 may be connected to the rf energy output interface 191 to electrically connect the ablation device and the rf energy generating device, so that the rf energy output by the rf energy generating device may be transmitted to the head electrode 210 and the body electrode 230 to act on the region to be treated. In addition, by providing a handle 250 at the proximal end of the ablation device, it can be held for use by a user, thereby providing more convenient handling.

It should be noted that the head electrode 210 and the body electrode 230 form an electrode pair to form a radio frequency energy circuit together with an electrolyte between the electrode pair during use, as will be appreciated by those skilled in the art. In a cutting mode, the radio frequency energy output by the radio frequency energy generating device is higher, so that charged ions in the electrolyte can be excited to generate low-temperature plasma for surgical treatment; in the coagulation mode, the radio frequency energy output by the radio frequency energy generating device is low, so that charged ions in the electrolyte can vibrate to generate heat for tissue coagulation.

With continued reference to fig. 4, as shown in fig. 4, in some exemplary embodiments, the area of the body electrode 230 is substantially larger than the area of the head electrode 210. Thus, by setting the area of the main electrode 230 to be much larger than the area of the head electrode 210, plasma can be ensured to be concentrated on the head electrode 210, thereby precisely removing lesion tissues and reducing the damage range to biological tissues.

In some exemplary embodiments, the insulating section 240 includes a metal tube (not shown) having a proximal end connected to the distal end of the handle 250 and an insulating sleeve (not shown) coupled to the exterior of the metal tube, the distal end of the metal tube being connected to the proximal end of the body electrode 230. Thus, by providing the insulating section 240 as a structure including a metal tube and an insulating sleeve provided outside the metal tube, not only can the overall structure of the ablation device be effectively simplified, but also the distal end of the ablation device can be conveniently pushed to the region to be treated.

Further, the metal tube and the main body electrode 230 are integrally formed. Thus, by providing the metal tube and the main body electrode 230 as a single structure, the process of the ablation device can be further simplified, and the production cost of the ablation device can be reduced.

In some exemplary embodiments, the head electrode 210, the body electrode 230, and the metal tube are made of metal materials such as stainless steel, molybdenum, tungsten, and platinum. For example, the main body electrode 230 and the metal tube are made of stainless steel, and the head electrode 210 is made of a high-temperature-resistant and corrosion-resistant metal material.

In some exemplary embodiments, the ablation device further comprises a temperature sensor (not shown) disposed inside the insulator 220, and a temperature measurement wire (not shown) connected to the temperature sensor is further disposed in the cable 260, a proximal end of the temperature measurement wire is connected to the connector 270, and a distal end of the temperature measurement wire is connected to the temperature sensor. Therefore, the temperature of the area to be treated can be detected in real time through the temperature sensor, and damage to a patient caused by overhigh temperature is effectively prevented; the temperature data measured by the temperature sensor can be transmitted to the detection and control module 110 in real time through the temperature measuring wire.

In some exemplary embodiments, the ablation device further comprises a fluid line (not shown) for inward infusion of a fluid, such as saline and/or a drug; or to drain liquids, such as waste liquids, impurities, outwards. Thus, saline and/or medication may be infused into the patient through the fluid line, and waste fluid and/or impurities generated during ablation may be expelled from the patient.

With continued reference to fig. 4, as shown in fig. 4, in some exemplary embodiments, the ablation device is provided with an identification circuit 290, and the detection and control module 110 is further configured to obtain type information of the ablation device according to the identification circuit 290, obtain preset service life information of the ablation device according to the type information of the ablation device, and evaluate a usage state of the ablation device according to the preset service life information and the usage time information of the ablation device.

Since the plasmoid generated at the distal end of the ablation device (e.g., an ablation device including a rf plasma ablation electrode) contains highly reactive particles, these highly reactive particles are highly corrosive to the tip electrode 210 and the body electrode 230, and as the duration of the plasmoid increases, the corrosive effects may destroy the structure of the electrode (including the tip electrode 210 and the body electrode 230) and cause a portion of the electrode (including the tip electrode 210 and the body electrode 230) to fall off. The detached electrodes (including the head electrode 210 and the body electrode 230) may be dropped into human tissue of the operation region, thereby causing injury to the human body, or require a user to spend much time and cost for removing the detached electrodes (including the head electrode 210 and the body electrode 230). Therefore, the identification circuit 290 is arranged at the proximal end of the ablation device (such as the ablation device comprising the radio frequency plasma ablation electrode), so that the detection and control module 110 can identify the type of the ablation device, and further determine the preset service life of the ablation device according to the type of the ablation device, thereby evaluating the use state of the ablation device according to the preset service life and the use time length information of the ablation device (namely judging whether the ablation device can be used continuously) so as to effectively avoid human injury caused by the use of the over-service life of the ablation device, and further remarkably improve the safety of an operation.

It should be noted that, as those skilled in the art will appreciate, the specific installation location of the identification circuit 290 is not limited in the present invention, for example, the identification circuit 290 may be installed in the connector 270, the cable 260, or the handle 250. It should be further noted that, as those skilled in the art can understand, the mapping relationship between the type of the ablation device and the preset service life is stored in the detection and control module 110.

In particular, when designing an ablation device (e.g., an ablation device including a radiofrequency plasma ablation electrode), a safe service life of a certain type of ablation device (e.g., an ablation device including a radiofrequency plasma ablation electrode) may be determined through a number of experiments, such as 30 minutes for an X01 type ablation device and 15 minutes for an X02 type ablation device.

In some exemplary embodiments, the identification circuit 290 is configured to detect a parameter value associated with the type of the ablation device and send the parameter value to the detection and control module 110, and the detection and control module 110 is further configured to obtain type information of the ablation device based on the parameter value. In particular, the different parameter values represent different ablation device types (e.g., ablation devices including radio frequency plasma ablation electrodes), which may be resistance values or other electrical parameter values (e.g., capacitance values or inductance values). The mapping relationship between the parameter value and the type of the ablation device is stored in the detection and control module 110, so that the detection and control module 110 can obtain the type information of the ablation device according to the parameter value and the mapping relationship.

In other exemplary embodiments, the identification circuit 290 includes a memory configured to store type information and at least one of usage time information, preset lifetime information, production time information, and product number information of the ablation device, and the detection and control module 110 is further configured to record a first activation time of the ablation device, to obtain the activation time information of the ablation device and store the activation time information in the memory, and to accumulate the usage time of the ablation device in real time and write the accumulated usage time in the memory during the usage of the ablation device, so as to update the usage time information stored in the memory (which may be updated in real time or may be updated periodically). Therefore, the detection and control module 110 can directly obtain the type information, the service life information and the preset service life information of the ablation device by reading the data stored in the memory, so that the overall structure of the identification circuit 290 can be simplified, and the situation that the historical service information of the ablation device is lost and the wrong service life judgment is caused after the ablation device is plugged in and plugged out again can be effectively prevented.

It should be noted that, as understood by those skilled in the art, the initial value of the usage period is 0. It should also be noted that the present invention is not limited to the specific type of memory, which may be, but is not limited to, an EEPROM (electrically erasable programmable read only memory) chip, as will be appreciated by those skilled in the art.

In some exemplary embodiments, the memory stores the type information of the ablation device and ablation device information such as time of use information, preset service life information, production time information, product number information, etc., in an encrypted manner. Therefore, the ablation device information can be effectively prevented from being illegally rewritten to reuse the ablation device which is only used for one time. Furthermore, the time information in the radio frequency energy generating device is forbidden to be randomly adjusted and changed, and only a specific person authorized by a manufacturer is allowed to calibrate in a password authorization mode.

In some exemplary embodiments, when the identification circuit 290 includes a memory, the detection and control module 110 is further configured to, after the ablation device is connected to the rf energy output interface 191 of the rf energy generating device, perform the following operations:

Thus, since the expiration date (i.e., how long it is effective after first activation) of each type of ablation device is certain, it is possible to accurately determine whether the ablation device is within the expiration date by the activation time information stored in the memory. By sending out alarm information and limiting the use of the ablation device when the ablation device exceeds the expiration date, the ablation device can be effectively prevented from being used for an expiration date, and invalid treatment is avoided.

Specifically, when the ablation device (e.g., an ablation device including a radiofrequency plasma ablation electrode) is equipped with the identification circuit 290 with a memory, a processor (or controller) in the radiofrequency energy generation device can communicate with the memory in the ablation device after the ablation device is plugged into the radiofrequency energy generation device, so as to read the type information of the ablation device. After the radio frequency energy generating device identifies the ablation device, firstly judging whether the ablation device is located in the effective period according to the starting time information stored in the memory, and outputting alarm information and limiting the use of the ablation device if the ablation device is judged to exceed the effective period. If the ablation device is determined to be in the effective period, whether the ablation device can be used continuously is further determined according to the using time of the ablation device.

In some exemplary embodiments, the detection and control module 110 is further configured to issue a reminder message when the usage of the ablation device is long relative to a preset lifetime of the ablation device by a first preset percentage; and when the duty ratio of the service life of the ablation device relative to the preset service life of the ablation device reaches a second preset percentage, sending out alarm information and stopping outputting the radio frequency energy, wherein the second preset percentage is larger than the first preset percentage. Therefore, when the service life of the ablation device reaches the preset service life of the first preset percentage, prompt information is sent, and when the service life of the ablation device reaches the preset service life of the second preset percentage, alarm information is sent and the output of radio frequency energy is stopped, so that the damage to human bodies caused by the service life of the ablation device can be effectively avoided, and the safety of an operation can be remarkably improved.

It should be noted that, as those skilled in the art can understand, the specific values of the first preset percentage and the second preset percentage are not limited in the present invention, and the specific values of the first preset percentage and the second preset percentage may be set according to actual requirements, for example, the first preset percentage may be set to 80%, and the second preset percentage may be set to 90% or 100%.

Specifically, please refer to fig. 5, which is a schematic diagram illustrating a usage status evaluation flow chart of an ablation device according to an embodiment of the present invention. As shown in fig. 5, when the ablation device is provided with the identification circuit 290 without the memory, after the ablation device is plugged into the rf energy generating device, the rf energy generating device identifies the type of the ablation device, and manually selects whether the ablation device is first connected, if the ablation device is first connected, a processor (or a controller) in the rf energy generating device establishes a new total time variable (i.e., new record) for using the ablation device, and if the ablation device is not first connected to the rf energy generating device, the processor (or the controller) in the rf energy generating device uses the current record (i.e., new record). Another variable Ttemp records the duration of a single output of energy as the ablation device outputs energy each time, the energy output time of each time being added to the total operating time (i.e., the duration of use) of the ablation device, tall. When Tall (i.e., the duration of use) reaches a certain proportion (i.e., a first preset percentage) of the preset service life of the type of ablation device, for example 80%, a long-duration indication of the use of the ablation device is displayed on the display 181 of the radio frequency energy generating device, for example, the ablation device with a design life of 30 minutes gives an indication when the cumulative use reaches 24 minutes. When the toll (i.e., the duration of use) approaches the design life of the ablation device, such as reaching 90% or 100% of the design life, the rf energy generating device sends out an alarm message and inhibits the output of rf energy. It can be seen that a disadvantage of the identification circuit 290 without memory installed in the ablation device is that after the ablation device is reinserted, historical usage information is lost, resulting in erroneous usage time determinations.

Further, as shown in fig. 5, when the ablation device (for example, the ablation device including the rf plasma ablation electrode) is provided with the identification circuit 290 with the memory, after the ablation device is inserted with the rf energy generating device, the processor (or the controller) in the rf energy generating device can communicate with the memory in the ablation device, so as to read the type information, the service life information, the preset service life information, and the like of the ablation device. After the radio frequency energy generating device can identify the type of the ablation device, firstly judging whether the ablation device is connected for the first time according to the starting time information stored in the memory, if the ablation device is judged not to be connected for the first time, reading the using time length information stored in the memory of the ablation device (namely, reading the using record in the memory), using and updating the record so as to update the using time length of the ablation device in real time, and if the using time length of the ablation device reaches a certain proportion (namely, a first preset percentage) of the preset service life of the ablation device, for example, 80 percent, sending out prompt information, judging that the ablation device can be continuously used, and if the using time length of the ablation device is close to or reaches the preset service life of the ablation device, sending out warning information and limiting the use of the ablation device. If the length of use of the ablation device is less than a certain proportion (i.e., a second preset percentage, such as 90%) of the preset life of the ablation device, then the electrode is determined to be available for continued use, and the newly generated length of use is accumulated with the existing length of use, and the accumulated length of use (i.e., the updated length of use) is written into the memory of the ablation device at regular intervals, such as updating the length of use information of the ablation device every 10 seconds. It can be seen that the advantage of having a memory-containing identification circuit 290 within the ablation device is that historical usage information can be stored and read with little impact on the overall usage time determination after reinsertion of the ablation device.

In summary, the rf energy generating device and the rf energy treatment system provided by the invention have the following beneficial effects:

(1) The radio frequency energy generating device provided by the invention adopts a modularized design, particularly the radio frequency power control part (comprising the detection and control module 110 and the adjustable power supply 120) adopts a modularized design, so that the adjustment of equipment parameters of the radio frequency energy generating device is more convenient, the structure is more reliable, the radio frequency energy generating device is easy to design, produce and maintain, the reliability and maintainability of the radio frequency energy generating device are improved, and the overall cost is effectively reduced. In addition, the output matching circuit 150 is arranged to adjust the waveform of the radio frequency energy output by the radio frequency conversion circuit 140 and filter the direct current component in the radio frequency energy, so that the output power of the radio frequency energy generation device provided by the invention can be improved, the direct current component in the output radio frequency current of the radio frequency conversion circuit 140 can be effectively isolated, and the safety performance of the radio frequency energy generation device provided by the invention in the use process can be effectively improved. In addition, the rf current detection circuit 160 is disposed at the output end of the rf conversion circuit 140, so that the rf current output by the rf conversion circuit 140 can be monitored in real time, thereby further improving the safety of the rf energy generating device provided by the invention in use.

(2) The radio frequency energy treatment system provided by the invention can be used for predicting the residual life of an ablation device (such as an ablation device comprising a radio frequency plasma ablation electrode), so that the damage to a human body caused by the use of the over-life of the ablation device can be effectively avoided, and the safety of an operation can be obviously improved.

It should be noted that in the description of the present specification, descriptions of terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in this specification and the features of the various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

It should be further noted that the above description is only for the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any changes and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, the present invention is intended to include such modifications and alterations insofar as they come within the scope of the invention or the equivalents thereof.

Claims

1. The radio frequency energy generating device is characterized by comprising a detection and control module, an adjustable power supply, a driving circuit, a radio frequency conversion circuit, an output matching circuit and a radio frequency current detection circuit;

2. The apparatus according to claim 1, wherein the rf conversion circuit includes a switching circuit and a transformer, an input terminal of the switching circuit is connected to the adjustable power supply and an output terminal of the driving circuit, an output terminal of the switching circuit is connected to an input terminal of the transformer, an output terminal of the transformer is connected to the rf current detection circuit and an input terminal of the output matching circuit, the switching circuit includes a plurality of switching elements configured to perform switching and switching operations under control of the driving circuit to convert dc power output from the adjustable power supply into ac power, and the transformer is configured to adjust a voltage of the ac power output from the switching circuit and to realize electrical isolation to realize safe output of rf energy.

3. The rf energy generating device of claim 1, wherein the rf current detection circuit comprises a current sensor having an electrical isolation structure, an input side of the current sensor being connected to an output of the rf conversion circuit, the current sensor being configured to measure an output rf current of the rf conversion circuit and transmit to the detection and control module, the electrical isolation structure being configured to electrically isolate the rf current detection circuit from the rf conversion circuit.

4. The rf energy generating device of claim 1, wherein the detection and control module is further configured to send a prompt or alarm signal and adjust or cut off the output of rf energy when the output rf current measured by the rf current detection circuit exceeds a preset current.

5. The rf energy generating device of claim 1, further comprising a power supply detection module coupled to the detection and control module, the power supply detection module comprising a power supply voltage detection circuit and a power supply current detection circuit, the power supply voltage detection circuit and the power supply current detection circuit each coupled to the output of the adjustable power supply, the power supply voltage detection circuit configured to measure the output voltage of the adjustable power supply and transmit to the detection and control module, the current detection circuit configured to measure the output current of the adjustable power supply and transmit to the detection and control module.

6. The device of claim 5, wherein the output of the adjustable power supply has an output voltage adjustment interface, and wherein the detection and control module is further configured to adjust the output voltage of the adjustable power supply in real time via the output voltage adjustment interface.

7. The radio frequency energy generating device of claim 5, wherein the output of the adjustable power supply further has an output current limit setting interface, the detection and control module further configured to set an output current limit of the adjustable power supply via the output current limit setting interface.

8. The rf energy generating device of claim 7, wherein the detection and control module is further configured to adjust an output current limit of the adjustable power supply based on an output voltage of the adjustable power supply.

9. The radio frequency energy generating device according to claim 1, further comprising a man-machine interaction module connected to the detection and control module, wherein the man-machine interaction module is configured to display equipment status and/or equipment information of the radio frequency energy generating device, and provide a user with on-off control of setting equipment parameters and radio frequency energy output;

10. A radio frequency energy treatment system comprising an ablation device and a radio frequency energy generating device according to any one of claims 1 to 9, the ablation device being connected to a radio frequency energy output interface of the radio frequency energy generating device for transmitting radio frequency energy output by the radio frequency energy generating device.

11. The rf energy therapy system of claim 10, wherein the ablation device is provided with an identification circuit, and the detection and control module is further configured to obtain type information of the ablation device based on the identification circuit, obtain preset life information of the ablation device based on the type information of the ablation device, and evaluate a usage status of the ablation device based on the preset life information and the usage duration information of the ablation device.

12. The rf energy therapy system of claim 11, wherein the detection and control module is further configured to issue a reminder when a ratio of a length of use of the ablation device relative to a preset lifetime of the ablation device reaches a first preset percentage; and when the duty ratio of the service life of the ablation device relative to the preset service life of the ablation device reaches a second preset percentage, sending out alarm information and stopping outputting the radio frequency energy, wherein the second preset percentage is larger than the first preset percentage.

13. The rf energy therapy system of claim 11, wherein the identification circuit is configured to detect a parameter value associated with a type of the ablation device and send to the detection and control module, the detection and control module further configured to obtain type information for the ablation device based on the parameter value.

14. The rf energy therapy system of claim 11, wherein the identification circuit comprises a memory configured to store at least one of type information, and length of use information, preset lifetime information, production time information, and product number information of the ablation device, the detection and control module is further configured to record a first activation time of the ablation device, to obtain and store the activation time information of the ablation device into the memory, and to accumulate a length of use of the ablation device in real time during use of the ablation device, and to write the accumulated length of use into the memory to update the length of use information stored in the memory.

15. The rf energy therapy system of claim 14, wherein the detection and control module is further configured to, after the ablation device is coupled to the rf energy output interface of the rf energy generation device, perform the following operations:

16. The rf energy therapy system of claim 10, wherein the ablation device comprises an rf plasma ablation electrode comprising, from distal to proximal, a headend electrode, an insulator, a body electrode, an insulation segment, a handle, a cable, and a connector connected in sequence, wherein a first electrode lead connected to the headend electrode and a second electrode lead connected to the body electrode are disposed within the cable.

17. The rf energy therapy system of claim 16, wherein the insulating section comprises a metal tube and an insulating sleeve sleeved outside the metal tube, a proximal end of the metal tube being connected to a distal end of the handle, a distal end of the metal tube being connected to a proximal end of the body electrode.

18. The rf energy therapy system of claim 16, wherein the ablation device further comprises a temperature sensor disposed within the insulator, and wherein a temperature measurement lead coupled to the temperature sensor is disposed within the cable.

19. The rf energy therapy system of claim 10, wherein the ablation device further comprises a fluid line for injecting saline and/or medication inward or draining waste fluid and/or impurities outward.