Ablation apparatus net power detection method, device and electronic equipment

Abstract

The present invention provides a method, device and electronic device for detecting the net power of an ablation instrument, which are applied to an ablation instrument; the method includes: obtaining the current ablation duration, forward power and reflected power of the ablation instrument; calculating the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode according to the current ablation duration; calculating the net power output by the ablation instrument according to the forward power, reflected power and real-time insertion loss. The method calculates the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode according to the ablation duration, and further calculates the net power output by the ablation instrument, so as to alleviate the problem that the power setting in the ablation operation cannot reflect the real microwave energy radiated into the tumor tissue, and improve the accuracy of detecting the net power of the ablation instrument, thereby improving the accuracy and effect of tumor tissue ablation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical ablation, and in particular to a method, a device and an electronic device for detecting the net power of an ablator. Background Art

[0002] At present, microwave ablators on the market only display the set microwave power, but the actual output power of the microwave changes dynamically. The set power cannot reflect the actual microwave energy radiated into the tumor tissue. It has no reference significance in judging the efficacy of ablation surgery and horizontal comparative analysis of clinical ablation cases, and cannot achieve the precise ablation that has always been advocated in clinical practice. Summary of the invention

[0003] The purpose of the present invention is to provide a method, device and electronic equipment for detecting the net power of an ablation device, so as to alleviate the problem that the power set in ablation surgery cannot reflect the actual microwave energy radiated into the tumor tissue, improve the accuracy of detecting the net power of the ablation device, and thus improve the accuracy and effect of tumor tissue ablation.

[0004] In the first aspect, an embodiment of the present invention provides a method for detecting the net power of an ablation instrument, which uses an ablation instrument; the method includes: obtaining the current ablation duration, forward power and reflected power of the ablation instrument; calculating the real-time insertion loss between the microwave transmission port and the microwave ablation radiation electrode of the ablation instrument based on the current ablation duration; calculating the net power output by the ablation instrument based on the forward power, the reflected power and the real-time insertion loss.

[0005] In a preferred embodiment of the present invention, the main control unit of the ablation instrument is connected to a power detection circuit; the step of obtaining the forward power and reflected power of the ablation instrument comprises: obtaining the forward power and reflected power of the ablation instrument through the power detection circuit.

[0006] In a preferred embodiment of the present invention, the step of calculating the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode according to the current ablation duration includes: determining the target impedance corresponding to the current ablation duration based on a preset ablation duration and impedance relationship function; the ablation duration and impedance relationship function is constructed based on the experimentally measured experimental ablation duration of the ablation instrument and the experimental impedance value corresponding to the experimental ablation duration; determining the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode corresponding to the target impedance based on a preset insertion loss and impedance relationship function; the insertion loss and impedance relationship function is constructed based on the experimental impedance value and the experimental insertion loss corresponding to the experimental impedance value.

[0007] In a preferred embodiment of the present invention, before the step of determining the target impedance corresponding to the current ablation duration based on a preset ablation duration and impedance relationship function, the method includes: obtaining multiple experimental ablation durations and multiple experimental impedance values ​​corresponding to the multiple experimental ablation durations; fitting the multiple experimental ablation durations with the multiple experimental impedance values ​​corresponding to the multiple experimental ablation durations to obtain the ablation duration and impedance relationship function; before the step of determining the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode corresponding to the target impedance based on a preset insertion loss and impedance relationship function, the method includes: obtaining multiple experimental impedance values ​​and multiple experimental insertion losses corresponding to the multiple experimental impedance values; fitting the multiple experimental impedance values ​​and the multiple experimental insertion losses corresponding to the multiple experimental impedance values ​​to obtain the insertion loss and impedance relationship function.

[0008] In a preferred embodiment of the present invention, after the step of calculating the net power output by the ablation device based on the forward power, the reflected power and the real-time insertion loss, the method further includes: calculating the change of the net power; calculating the rate of change of the net power based on the change; judging whether the ablation device is abnormal based on the rate of change; and if so, controlling the output of an alarm signal.

[0009] In a preferred embodiment of the present invention, the step of calculating the net power output by the ablation device according to the forward power, the reflected power and the real-time insertion loss comprises: subtracting the forward power, the reflected power and the real-time insertion loss in sequence to obtain the net power output by the ablation device.

[0010] In a preferred embodiment of the present invention, before the step of obtaining the current ablation time, the forward power and the reflected power of the ablation device, the method includes: obtaining the tumor diagnosis data of the user; determining the preset net power of the ablation device based on the tumor diagnosis data; after the step of calculating the net power output by the ablation device based on the forward power, the reflected power and the real-time insertion loss, the method includes: comparing the net power with the preset net power, and determining whether to stop the ablation operation of the ablation device according to the comparison result.

[0011] In a preferred embodiment of the present invention, the step of determining whether to stop the ablation operation of the ablation device according to the comparison result includes: if the net power is equal to the preset net power, determining to stop the ablation operation of the ablation device.

[0012] In the second aspect, an embodiment of the present invention further provides a device for detecting the net power of an ablation device, which is applied to an ablation device; the device comprises: a data acquisition module, which is used to obtain the current ablation time, forward power and reflected power of the ablation device; an insertion loss calculation module, which is used to calculate the real-time insertion loss between the microwave transmitting port and the microwave ablation radiation electrode of the ablation device according to the current ablation time; and a net power calculation module, which is used to calculate the net power output by the ablation device according to the forward power, the reflected power and the real-time insertion loss.

[0013] In a third aspect, an embodiment of the present invention provides an electronic device, comprising a processor and a memory, wherein the memory stores computer executable instructions that can be executed by the processor, and the processor executes the computer executable instructions to implement the above-mentioned method for detecting the net power of the ablation device.

[0014] The present invention has the following beneficial technical effects:

[0015] The embodiments of the present invention provide a method, device and electronic device for detecting the net power of an ablation instrument, which are applied to an ablation instrument; the method includes: obtaining the current ablation duration, forward power and reflected power of the ablation instrument; calculating the real-time insertion loss between the microwave transmitting port and the microwave ablation radiation electrode of the ablation instrument according to the current ablation duration; calculating the net power output by the ablation instrument according to the forward power, the reflected power and the real-time insertion loss. The method calculates the real-time insertion loss between the microwave transmitting port and the output port of the ablation instrument according to the ablation duration, and further calculates the net power output by the ablation instrument, so as to alleviate the problem that the power set in the ablation operation cannot reflect the actual microwave energy radiated into the tumor tissue, and improves the accuracy of detecting the net power of the ablation instrument, thereby improving the accuracy and effect of tumor tissue ablation.

[0016] Other features and advantages disclosed in this embodiment will be described in the subsequent description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technology of the present disclosure.

[0017] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic flow chart of a method for detecting net power of an ablation apparatus provided by an embodiment of the present invention;

[0020] Figure 2 A schematic flow chart of another method for detecting net power of an ablation apparatus provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a device for detecting net power of an ablation apparatus provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of an electronic device is provided for an embodiment of the present invention.

[0023] Icons: 31 - data acquisition module; 32 - insertion loss calculation module; 33 - net power calculation module; 41 - memory; 42 - processor; 43 - bus; 44 - communication interface. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Microwave ablators on the market only display the set microwave power, but the actual output power of the microwave changes dynamically. The set power cannot reflect the actual microwave energy radiated into the tumor tissue, and has no reference significance in judging the efficacy of ablation surgery and horizontal comparative analysis of clinical ablation cases, resulting in low precision and poor effect of ablation operations.

[0026] Based on this, the embodiments of the present invention provide a method, device and electronic device for detecting the net power of an ablation device. The method calculates the real-time insertion loss between the microwave transmitting port of the ablation device and the microwave ablation radiation electrode according to the ablation duration, thereby further calculating the net power output by the ablation device, so as to alleviate the problem that the power setting in the ablation operation cannot reflect the actual microwave energy radiated into the tumor tissue, improve the accuracy of detecting the net power of the ablation device, and thus improve the accuracy and effect of tumor tissue ablation. To facilitate understanding of the embodiments of the present invention, a method for detecting the net power of an ablation device disclosed in the embodiments of the present invention is first introduced in detail.

[0027] Example 1

[0028] In this embodiment, Figure 1A schematic flow chart of a method for detecting net power of an ablation apparatus provided in an embodiment of the present invention. The method is applied to an ablation apparatus.

[0029] In this embodiment, the method is applied to the main control unit of the ablation apparatus mentioned above.

[0030] Depend on Figure 1 As can be seen, the method includes:

[0031] Step S101: obtaining the current ablation duration, forward power and reflected power of the ablation device.

[0032] In this embodiment, the main control unit is connected to the power detection circuit via a directional coupling circuit; the step S101 includes: obtaining the forward power and the reflected power of the ablation device via the power detection circuit.

[0033] Here, the main control unit is connected to the power detection circuit through a directional coupling circuit. Because the microwave transmission link has a large power, if the power detection circuit is directly connected to the main control unit and the forward power and reflected power of the ablation device are obtained through the power detection circuit, the power detection circuit may be burned. Therefore, a directional coupling circuit is added between the main control unit and the power detection circuit to avoid damage to the power detection circuit. Here, the directional coupling circuit includes a bidirectional coupler.

[0034] Furthermore, the ablation apparatus comprises: a microwave emission source, an isolation circuit, a microwave transmission link and an ablation antenna.

[0035] Furthermore, the control unit is also connected to a human-computer interaction module of an external device, and executes the step S101 when receiving a data acquisition instruction sent by the human-computer interaction module.

[0036] Furthermore, the main control unit is also connected to a storage module of an external device, and the storage module is used to store the forward power and the reflected power.

[0037] Furthermore, the step S101 obtains the forward power and reflected power of the ablation device by obtaining the docking port of the ablation antenna.

[0038] Step S102: Calculate the real-time insertion loss between the microwave transmitting port of the ablation apparatus and the microwave ablation radiation electrode according to the current ablation duration.

[0039] In order to meet the clinical treatment needs of tumors in different organs and tumors with different properties, the ablation antenna of the above-mentioned ablation device is often designed into multiple models with different lengths, different outer diameters, different radiation electrode lengths, etc. Therefore, in microwave ablation, its insertion loss will vary due to different models of ablation antennas, tumor ablation progress, etc. In order to obtain the insertion loss of a certain model of ablation antenna in microwave ablation surgery as accurately as possible, before the above-mentioned step S102, the method also includes: experimentally determining the relationship between the impedance and insertion loss of the above-mentioned ablation antenna and the relationship between the impedance and the ablation time, thereby obtaining the relationship between the ablation time and the insertion loss. Furthermore, through the ablation time, the real-time insertion loss corresponding to the ablation time can be obtained based on the above-mentioned relationship between the impedance and the insertion loss and the relationship between the impedance and the ablation time.

[0040] Step S103: Calculate the net power output by the ablation device according to the forward power, the reflected power and the real-time insertion loss.

[0041] An embodiment of the present invention provides a method for detecting the net power of an ablation instrument, which is applied to an ablation instrument; the method includes: obtaining the current ablation duration, forward power and reflected power of the ablation instrument; calculating the real-time insertion loss between the microwave transmitting port of the ablation instrument and the microwave ablation radiation electrode according to the current ablation duration; calculating the net power output by the ablation instrument according to the forward power, the reflected power and the real-time insertion loss. The method calculates the real-time insertion loss between the microwave transmitting port of the ablation instrument and the microwave ablation radiation electrode according to the ablation duration, and further calculates the net power output by the ablation instrument, so as to alleviate the problem that the power set in the ablation operation cannot reflect the actual microwave energy radiated into the tumor tissue, and improve the accuracy of detecting the net power of the ablation instrument, thereby improving the accuracy and effect of tumor tissue ablation.

[0042] Example 2

[0043] Based on Example 1, Figure 2 A flow chart of another method for detecting net power of an ablation apparatus provided by an embodiment of the present invention is provided. The method is applied to an ablation apparatus; the control unit of the ablation apparatus is connected to a power detection circuit.

[0044] Depend on Figure 2 As can be seen, the method includes:

[0045] Step S201: obtaining the current ablation duration, forward power and reflected power of the ablation device.

[0046] In this embodiment, the forward power and reflected power of the ablation apparatus are obtained through the power detection circuit.

[0047] Step S202: Determine the target impedance corresponding to the current ablation duration based on a preset ablation duration and impedance relationship function; the ablation duration and impedance relationship function is constructed based on the experimentally measured experimental ablation duration of the ablation device and the experimental impedance value corresponding to the experimental ablation duration.

[0048] In this embodiment, before the above-mentioned step S202, the above-mentioned method includes: obtaining multiple experimental ablation durations and multiple experimental impedance values ​​corresponding to the above-mentioned multiple experimental ablation durations; fitting the above-mentioned multiple experimental ablation durations and the multiple experimental impedance values ​​corresponding to the above-mentioned multiple experimental ablation durations to obtain the above-mentioned ablation duration and impedance relationship function.

[0049] Step S203: Based on a preset insertion loss and impedance relationship function, determine the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode corresponding to the target impedance; the insertion loss and impedance relationship function is constructed based on the experimental impedance value and the experimental insertion loss corresponding to the experimental impedance value.

[0050] Furthermore, before the above step S203, the above method includes: obtaining multiple experimental impedance values ​​and multiple experimental insertion losses corresponding to the multiple experimental impedance values; fitting the multiple experimental impedance values ​​and the multiple experimental insertion losses corresponding to the multiple experimental impedance values ​​to obtain the insertion loss and impedance relationship function.

[0051] Step S204: Calculate the net power output by the ablation device according to the forward power, the reflected power and the real-time insertion loss.

[0052] After the above step S204, the above method further includes: calculating the change amount of the above net power; calculating the change rate of the above net power based on the above change amount; judging whether the above ablation device has an abnormality based on the above change rate; if so, controlling the output of an alarm signal.

[0053] In actual operation, the net power should be in a state of dynamic and continuous change and continuously decreasing with the progress of time. Assuming a specific state (for example, partial disconnection of microwave transmission), the net power will change dramatically. The control unit of the present invention detects the change in the above net power within a specific time interval, and determines whether the ablation device is abnormal through the above change, and promptly prompts the user to take measures to avoid risks.

[0054] Furthermore, the step S204 includes: subtracting the forward power, the reflected power and the real-time insertion loss in sequence to obtain the net power output by the ablation device.

[0055] In actual applications, before the above step S201, the above method includes: obtaining the user's tumor diagnosis data; determining the preset net power of the above ablation device based on the above tumor diagnosis data; in the above step S204, the above method includes: comparing the above net power with the above preset net power, and determining whether to stop the ablation operation of the above ablation device based on the comparison result.

[0056] Here, the step of determining whether to stop the ablation operation of the ablation device according to the comparison result includes: if the net power is equal to the preset net power, determining to stop the ablation operation of the ablation device.

[0057] An embodiment of the present invention provides a method for detecting the net power of an ablation device, which is applied to an ablation device; the method includes: obtaining the current ablation duration, forward power and reflected power of the ablation device; determining the target impedance corresponding to the current ablation duration based on a preset ablation duration and impedance relationship function; the ablation duration and impedance relationship function is constructed based on the experimentally measured experimental ablation duration of the ablation device and the experimental impedance value corresponding to the experimental ablation duration; determining the real-time insertion loss between the microwave transmission port and the microwave ablation radiation electrode of the ablation device corresponding to the target impedance based on a preset insertion loss and impedance relationship function; the insertion loss and impedance relationship function is constructed based on the experimental impedance value and the experimental insertion loss corresponding to the experimental impedance value; and calculating the net power output by the ablation device based on the forward power, the reflected power and the real-time insertion loss. This method determines the target impedance corresponding to the ablation duration through the correspondence between the ablation duration and the preset ablation duration and impedance relationship function, and then determines the real-time insertion loss corresponding to the target impedance through the target impedance and the input loss and impedance relationship function, so as to further calculate the net power output by the ablation device, so as to alleviate the problem that the power set in the ablation operation cannot reflect the actual microwave energy radiated into the tumor tissue, improve the accuracy of detecting the net power of the ablation device, and further improve the accuracy and effect of tumor tissue ablation.

[0058] Example 3

[0059] Figure 3 The present invention provides a schematic diagram of the structure of a device for detecting the net power of an ablator provided in an embodiment of the present invention. The device for detecting the net power of an ablator is applied to an ablator.

[0060] Depend on Figure 3 As can be seen, the device includes:

[0061] The data acquisition module 31 is used to acquire the current ablation duration, forward power and reflected power of the ablation device.

[0062] The insertion loss calculation module 32 is used to calculate the real-time insertion loss of the microwave transmission port and the output port of the ablation device according to the current ablation duration.

[0063] The net power calculation module 33 is used to calculate the net power output by the ablation device according to the forward power, the reflected power and the real-time insertion loss.

[0064] The data acquisition module 31, the insertion loss calculation module 32 and the net power calculation module 33 are connected in sequence.

[0065] In one embodiment, the main control unit of the ablation instrument is connected to a constant power detection circuit; the data acquisition module 31 is used to obtain the forward power and reflected power of the ablation instrument through the power detection circuit. In one embodiment, the insertion loss calculation module 32 is also used to determine the target impedance corresponding to the current ablation duration based on a preset ablation duration and impedance relationship function; the ablation duration and impedance relationship function is constructed based on the experimentally measured experimental ablation duration of the ablation instrument and the experimental impedance value corresponding to the experimental ablation duration; based on the preset insertion loss and impedance relationship function, the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode corresponding to the target impedance is determined; the insertion loss and impedance relationship function is constructed based on the experimental impedance value and the experimental insertion loss corresponding to the experimental impedance value.

[0066] In one embodiment, the insertion loss calculation module 32 is further used to obtain multiple experimental ablation durations and multiple experimental impedance values ​​corresponding to the multiple experimental ablation durations; fit the multiple experimental ablation durations and the multiple experimental impedance values ​​corresponding to the multiple experimental ablation durations to obtain the ablation duration and impedance relationship function; obtain the multiple experimental impedance values ​​and the multiple experimental insertion losses corresponding to the multiple experimental impedance values; fit the multiple experimental impedance values ​​and the multiple experimental insertion losses corresponding to the multiple experimental impedance values ​​to obtain the insertion loss and impedance relationship function.

[0067] In one embodiment, the net power calculation module 33 is further used to calculate the change in the net power; based on the change, calculate the rate of change of the net power; based on the rate of change, determine whether the ablation device has an abnormality; if so, control the output of an alarm signal.

[0068] In one embodiment, the net power calculation module 33 further subtracts the forward power, the reflected power and the real-time insertion loss in sequence to obtain the net power output by the ablation device.

[0069] In one embodiment, the data acquisition module 31 is also used to obtain the user's tumor diagnosis data; based on the tumor diagnosis data, the preset net power of the ablation device is determined; the net power calculation module 33 is also used to compare the net power with the preset net power, and determine whether to stop the ablation operation of the ablation device based on the comparison result.

[0070] In one embodiment, the net power calculation module 33 is further configured to determine to stop the ablation operation of the ablation device if the net power is equal to the preset net power.

[0071] The ablator net power detection device provided in the embodiment of the present invention has the same technical features as the ablator net power detection method provided in the above embodiment, so it can also solve the same technical problems and achieve the same technical effects. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the device described above can refer to the corresponding process in the above method embodiment, and will not be repeated here.

[0072] Example 4

[0073] This embodiment provides an electronic device, including a processor and a memory, wherein the memory stores computer executable instructions that can be executed by the processor, and the processor executes the computer executable instructions to implement the steps of a method for detecting the net power of an ablation device.

[0074] This embodiment provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of the method for detecting the net power of an ablation device are implemented.

[0075] See also Figure 4 The schematic diagram of the structure of an electronic device shown in the figure comprises: a memory 41 and a processor 42. The memory 41 stores a computer program that can be run on the processor 42. When the processor executes the computer program, the steps provided by the above-mentioned method for detecting the net power of the ablation device are implemented.

[0076] like Figure 4 As shown, the device further includes: a bus 43 and a communication interface 44, a processor 42, a communication interface 44 and a memory 41 are connected via the bus 43; the processor 42 is used to execute executable modules stored in the memory 41, such as computer programs.

[0077] The memory 41 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 44 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used.

[0078] The bus 43 may be an ISA bus, a PCI bus, or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0079] Among them, the memory 41 is used to store the program, and the processor 42 executes the program after receiving the execution instruction. The method executed by the detection device of the net power of the ablation device disclosed in any embodiment of the present invention can be applied to the processor 42, or implemented by the processor 42. The processor 42 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 42 or the instruction in the form of software. The above processor 42 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 41, and the processor 42 reads the information in the memory 41 and completes the steps of the above method in combination with its hardware.

[0080] Furthermore, an embodiment of the present invention also provides a machine-readable storage medium, which stores machine-executable instructions. When the machine-executable instructions are called and executed by the processor 42, the machine-executable instructions prompt the processor 42 to implement the above-mentioned method for detecting the net power of the ablation device.

[0081] The electronic device and computer-readable storage medium provided by the embodiments of the present invention have the same technical features, and therefore can solve the same technical problems and achieve the same technical effects.

[0082] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

Claims

1. A device for detecting net power of an ablation apparatus, characterized in that: An ablation device is used; the device comprises: A data acquisition module, used to acquire the current ablation duration, forward power and reflected power of the ablation device; An insertion loss calculation module is used to obtain multiple experimental ablation durations and multiple experimental impedance values ​​corresponding to the multiple experimental ablation durations; fit the multiple experimental ablation durations and the multiple experimental impedance values ​​corresponding to the multiple experimental ablation durations to obtain an ablation duration and impedance relationship function; based on the ablation duration and impedance relationship function, determine the target impedance corresponding to the current ablation duration; obtain multiple experimental impedance values ​​and multiple experimental insertion losses corresponding to the multiple experimental impedance values; fit the multiple experimental impedance values ​​and the multiple experimental insertion losses corresponding to the multiple experimental impedance values ​​to obtain an insertion loss and impedance relationship function; based on the insertion loss and impedance relationship function, determine the real-time insertion loss between the microwave transmission port of the ablation instrument and the microwave ablation radiation electrode corresponding to the target impedance; The net power calculation module is used to calculate the net power output by the ablation device according to the forward power, the reflected power and the real-time insertion loss.

2. The device for detecting the net power of an ablation apparatus according to claim 1, characterized in that: The main control unit of the ablation instrument is connected to the power detection circuit; The step of obtaining the forward power and reflected power of the ablator comprises: The forward power and reflected power of the ablation device are obtained through the power detection circuit.

3. The device for detecting the net power of an ablation apparatus according to claim 1, characterized in that: The net power calculation module is also used to calculate the change of the net power; based on the change, calculate the change rate of the net power; based on the change rate, determine whether the ablation device has an abnormality; when the ablation device has an abnormality, control the output of an alarm signal.

4. The device for detecting the net power of an ablation apparatus according to claim 1, characterized in that: The step of calculating the net power output by the ablation apparatus according to the forward power, the reflected power and the real-time insertion loss comprises: The forward power, the reflected power and the real-time insertion loss are subtracted in sequence to obtain the net power output by the ablation device.

5. The device for detecting the net power of an ablation apparatus according to claim 1, characterized in that: The data acquisition module is also used to obtain the user's tumor diagnosis data; based on the tumor diagnosis data, determine the preset net power of the ablation device; the net power calculation module is also used to compare the net power with the preset net power, and determine whether to stop the ablation operation of the ablation device based on the comparison result.

6. The device for detecting the net power of an ablation apparatus according to claim 5, characterized in that: The step of determining whether to stop the ablation operation of the ablation device according to the comparison result includes: When the net power is equal to the preset net power, it is determined to stop the ablation operation of the ablation device.

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