Ablation detection system

Abstract

The utility model provides an ablation detection system, which relates to the field of medical equipment and comprises an ablation module, a detection module, a switching circuit module and an ablation detection electrode. The ablation module and the detection module are both electrically connected with the switching circuit module, and the switching circuit module is electrically connected with the ablation detection electrode; the ablation detection electrode comprises at least one ablation electrode and is used for ablation treatment; the ablation detection electrode further comprises at least two detection electrodes used for detecting target tissue. Only the contact position of the end of the detection electrode and the tissue is conductive, and the other positions are provided with insulating layers; the ablation module is used for outputting ablation current; the detection module is used for outputting the excitation signal and receiving the feedback signal so as to detect the target tissue. The ablation electrode can be guided to reach the preset position of the human tissue. The method can assist in detecting whether target tissues belong to normal tissues, benign tissues or malignant tissues or not, and damage to human tissues is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical equipment, especially to an ablation detection system. BACKGROUND

[0002] Radiofrequency ablation (RFA) is usually used to treat abnormal electrical activity of the heart, such as arrhythmia, or tumors in the body, such as tumors in the lungs, liver, bones, kidneys, or intestines. This technology uses radiofrequency energy to heat and destroy target tissue in a small area. The main mechanism of radiofrequency ablation treatment is heat effect; when radiofrequency current flows through human tissue, the polarized water molecules in the tissue move at high speed due to the rapid change of the electromagnetic field, generating heat (i.e. endogenous heat effect), causing intracellular and extracellular water evaporation, drying, shrinkage, and sterile necrosis, thus achieving the purpose of treatment. The existing ablation electrode needle confirms the specific position of the patient's diseased tissue during treatment. The existing technology mainly uses image information to guide treatment, but radiofrequency ablation is a destructive treatment method that can cause tissue damage. In actual operation, there are problems such as inaccurate positioning of the operation site, or the target tissue is normal tissue or the target tissue is benign, and whether ablation has little effect on human health.

[0003] Chinese patent document CN111012481A describes a radiofrequency ablation catheter and a radiofrequency ablation system, which describes the prior art of radiofrequency ablation equipment. This scheme uses a multi-needle scheme to improve treatment effectiveness, but the multi-needle scheme inevitably causes greater damage to the body. CN112568890A describes a minimally invasive multi-electrode bioelectric impedance detection system and method, which can detect and distinguish different human tissues through electrical signals. However, this scheme does not have a treatment effect. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide an ablation detection system that can freely switch the working mode of the electrode between detection and ablation operation, thereby assisting the ablation electrode in positioning, improving the accuracy of ablation treatment, and detecting whether the target tissue belongs to normal tissue, benign tumor, or malignant tumor to assist the physician in determining whether subsequent ablation operation is needed and how to perform ablation operation.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] An ablation detection system includes an ablation module, a detection module, a switching circuit module, and an ablation detection electrode.

[0007] The ablation module and the detection module are electrically connected to the switching circuit module, and the switching circuit module is electrically connected to the ablation detection electrode.

[0008] The ablation detection electrode comprises at least one ablation electrode for ablation treatment;

[0009] The ablation detection electrode further comprises at least two detection electrodes for detection of the target tissue;

[0010] The detection electrodes are conductive only at the positions where the tips thereof contact the tissue, and the rest positions are provided with an insulating layer;

[0011] The ablation module is configured to output an ablation current;

[0012] The detection module is configured to output an excitation signal and receive a feedback signal for detection of the target tissue;

[0013] The switching circuit module is configured to switch the ablation module or the detection module to be conductive with the ablation detection electrode.

[0014] In a preferred embodiment, the ablation detection electrode comprises a first ablation electrode and a second ablation electrode;

[0015] The first ablation electrode and the second ablation electrode are conductive only at the positions where the tips thereof contact the tissue, and the rest positions are provided with an insulating layer.

[0016] In a preferred embodiment, the ablation electrode is one, and the first detection electrode and the second detection electrode are provided on the ablation electrode;

[0017] The first detection electrode and the second detection electrode are insulated from the ablation electrode;

[0018] The ablation electrode is a single radio frequency electrode or a single microwave electrode;

[0019] The corresponding ablation module is a radio frequency ablation module or a microwave ablation module.

[0020] In a preferred embodiment, the ablation electrode is two;

[0021] One detection electrode is provided on each ablation electrode, and the detection electrodes are insulated from the ablation electrodes;

[0022] In a preferred embodiment, the ablation electrode is two;

[0023] Or a first detection electrode and a second detection electrode are provided on each ablation electrode, and the first detection electrode and the second detection electrode are insulated from the ablation electrodes.

[0024] In a preferred embodiment, a temperature sensor is further provided on the ablation detection electrode, and the temperature sensor is configured to collect the temperature of the target tissue.

[0025] In the preferred scheme, in the switching circuit module, the D6PWM pin of the master control chip Arduino Uno Rev3 is electrically connected with the IN7 pin of the chip ULN2003A, the OV pin of the chip ULN2003A is electrically connected with one end of JP1, the other end of JP1 is electrically connected with one end of the relay K2, the other end of the relay K2 is electrically connected with the resistor C1, the other end of the resistor C1 is electrically connected with the base of the triode Q1, the emitter of the triode Q1 is grounded, the collector of the triode Q1 is electrically connected with one end of the light emitting diode D1, and the other end of the light emitting diode D1 is electrically connected with JP2.

[0026] The master control chip Arduino Uno Rev3 is used for controlling the chip ULN2003A, realizing quick switching of ablation and detection functions, so as to prevent strong current or interference signal in ablation from causing damage to the detection circuit.

[0027] In the preferred scheme, the switching circuit module is a manual switch group, and the ablation module or the detection module is switched on or off with the ablation detection electrode in a manual mode.

[0028] In the preferred scheme, in the detection module, the operation platform is electrically connected with the excitation and detection part.

[0029] The excitation and detection part is provided with a digital phase-sensitive detection and feedback compensation circuit and a reference calibration and switching circuit.

[0030] The digital phase-sensitive detection and feedback compensation circuit is used for providing an excitation signal and detecting the impedance of the target tissue.

[0031] The reference calibration and switching circuit is used for calibrating a signal and providing a stable and accurate reference voltage.

[0032] In the preferred scheme, the operation platform is electrically connected with the touch screen, and the operation platform is further connected with a local model, a local database and a network system.

[0033] The utility model provides a kind of ablation detection system, can utilize the work of switching detection module or ablation module, to carry out target tissue detection or ablation treatment mode of work, with following beneficial effect: one is, can guide ablation electrode to reach the position of preset human tissue. Two can assist confirmation whether to reach the position of expected ablation treatment, to avoid deviating from treatment target. Three can assist detection whether target tissue belongs to normal tissue, benign tissue or malignant tissue, reduce damage to human tissue. BRIEF DESCRIPTION OF DRAWINGS

[0034] The utility model will be further described in connection with the drawings and examples:

[0035] Figure 1 It is the overall structure diagram of the utility model;

[0036] Figure 2 is a structure block diagram of a bipolar structure preferred scheme in the utility model;

[0037] Figure 3 is a structure block diagram of a three-pole structure preferred scheme in the utility model;

[0038] Figure 4 is a structure block diagram of a three-pole structure preferred scheme in the utility model; Figure 3

[0039] Figure 5 is a structure block diagram of a three-pole structure preferred scheme in the utility model; Figure 3

[0040] Figure 6 is a structure block diagram of a four-pole structure preferred scheme in the utility model;

[0041] Figure 7 is a structure block diagram of a six-pole structure preferred scheme in the utility model;

[0042] Figure 8 is a structure block diagram of a temperature sensor in the utility model;

[0043] Figure 9 is a circuit structure diagram of a switching circuit module in the utility model;

[0044] Figure 10 is a demonstration schematic diagram of an intestinal tract detection target tissue provided by the utility model;

[0045] Figure 11 is a detection design system block diagram of the utility model.

[0046] In the figure: ablation detection electrode device 10, switching circuit module 101, ablation module 102, detection module 103, main control processing module 104, impedance data acquisition module 105, lesion position sensing module 106, display module 107, storage module 108, ablation detection electrode 109, first ablation electrode 1091, second ablation electrode 1092, first detection electrode 1093, second detection electrode 1094, single radio frequency electrode 1097, single microwave electrode 1098. DETAILED DESCRIPTION

[0047] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0048] Figure 1 ​​A structural schematic diagram of an ablation detection electrode device provided by an embodiment of the present application, the ablation detection electrode device 10 comprising a switching circuit module 101, an ablation module 102, a detection module 103, a master control processing module 104, an impedance data acquisition module 105, a lesion location sensing module 106, a display module 107, a storage module 108, and an ablation detection electrode 109, and the following is a detailed introduction of the embodiment of the present application:

[0049] Embodiment 1

[0050] As shown in Figure 1 , 10 , the present embodiment shows an ablation detection system, comprising an ablation module 102, a detection module 103, a switching circuit module 101, and an ablation detection electrode 109;

[0051] The ablation module 102 and the detection module 103 are electrically connected with the switching circuit module 101, and the switching circuit module 101 is electrically connected with the ablation detection electrode 109;

[0052] The ablation detection electrode 109 comprises at least one ablation electrode for ablation therapy;

[0053] The ablation detection electrode 109 further comprises at least two detection electrodes for detecting target tissue;

[0054] The detection electrode is only electrically conductive at the position where the tip contacts the tissue, and the rest of the position is provided with an insulating layer;

[0055] Among them, the ablation electrode is used to deliver ablation current, and the detection electrode is used to detect tissue characteristics. The non-contact part of the detection electrode is wrapped with insulating material to ensure that only the electrode tip directly contacts the tissue.

[0056] In specific implementation, in the ablation process, the ablation electrode heats and destroys the lesion tissue by conducting high-frequency current. In the detection stage, the detection electrode is only electrically conductive at the position where the tip contacts the tissue, and the electrical characteristics of the tissue are measured by using a low-frequency excitation signal to help determine the state of the tissue.

[0057] The ablation module 102 is used to output ablation current;

[0058] Specifically, the ablation module 102 can generate alternating current of a specific frequency through a frequency generator, and after adjustment by a power regulator, energy level suitable for ablation therapy is generated to achieve effective tissue ablation.

[0059] In implementation, when the switching circuit module 101 connects the ablation module 102 with the ablation electrode, the ablation module 102 generates high-frequency alternating current or other types of ablation energy, which is transmitted to the ablation electrode through the switching circuit module 101, and the ablation current acts on the target tissue through the ablation electrode, which produces a thermal effect, realizes thermal damage of the lesion area, causes cell death in the tissue, and thus realizes ablation treatment of the lesion.

[0060] The detection module 103 is configured to output an excitation signal and receive a feedback signal to detect the target tissue.

[0061] Specifically, the detection module 103 is provided with a signal generator and a signal receiver, and is electrically connected to the main control processing module 104, the impedance data acquisition module 105 and the display module 107, respectively. The signal generator generates a low-frequency excitation signal, and the signal receiver captures the signal reflected from the tissue. The impedance data acquisition module 105 analyzes the received signal through the main control processing module 104 and forms meaningful data, which is finally displayed through the display module 107 for reference by medical staff.

[0062] In implementation, in the detection mode, the detection module 103 sends a low-frequency excitation signal to the detection electrode through the switching circuit module 101. Since the detection electrode is only conductive at the position where the tip contacts the tissue, the biological impedance or other physical properties of the tissue can be accurately obtained. After the signal receiver receives the feedback signal, the main control processing module 104 analyzes it to obtain information about the state of the tissue, which is presented through the display module 107.

[0063] The switching circuit module 101 is configured to switch the ablation module 102 or the detection module 103 to be conductive with the ablation detection electrode 109. Specifically, the switching circuit module 101 mainly consists of a relay or an analog switch. The switching circuit module 101 enables the ablation electrode and the detection electrode to be connected with different modules respectively, ensures quick conversion between the ablation and detection modes, and controls when to allow the ablation current to pass through the ablation electrode and when to allow the detection signal to pass through the detection electrode.

[0064] In implementation, when the system is in the ablation mode, the switching circuit module 101 automatically identifies the instruction and connects the ablation module 102 with the ablation detection electrode 109, ensuring that the ablation current is transmitted to the target tissue through the ablation electrode.

[0065] In the detection mode, the switching circuit module 101 disconnects the ablation module 102 and connects the detection module 103 with the ablation detection electrode 109, so that the detection signal can enter the tissue from the detection electrode and the feedback signal is sent back to the detection module 103. At the same time, the ablation current can also be effectively isolated to prevent interference with the detection signal.

[0066] Preferably, in order to prevent current leakage or short circuit in accidental situations, the switching circuit module 101 is built-in with various protection mechanisms, such as overload protection, short circuit protection, etc.

[0067] In this embodiment, as shown in FIG. 1, the ablation detection electrode 109 is further provided with a temperature sensor, which is used to collect the temperature of the target tissue. Specifically, the temperature sensor is used to monitor the temperature change in real time during the ablation process, so as to ensure the safety and effectiveness of the treatment. The temperature sensor can accurately measure the temperature of the ablation area, which helps the doctor to control the distribution of heat energy during the ablation process and prevent the normal tissue from being damaged due to excessive heating. Figure 8

[0068] Specifically, when the temperature reaches 43°C to 45°C, the system will maintain in this temperature range, which is suitable for hyperthermia treatment; when ablation treatment is needed, the system will automatically adjust the temperature to 50°C to 60°C or even higher, so as to ensure that the cells are irreversibly damaged.

[0069] In one implementation, when the temperature reaches 43°C to 45°C, although it does not immediately lead to cell death, it can cause cell apoptosis or cell function impairment in a long time, such as several hours. This method is usually used for hyperthermia treatment rather than ablation.

[0070] In another implementation, when the temperature rises to 50°C to 60°C, the cells begin to experience irreversible damage, which usually occurs within a few minutes.

[0071] In yet another implementation, the temperature is further increased to above 60°C, especially to 80°C or above, which can quickly cause protein denaturation and cell structure damage, thereby achieving immediate necrosis of the cells.

[0072] In the treatment of heart diseases (such as arrhythmia), radiofrequency ablation usually generates a temperature of about 70°C in the tissue; for tumor treatment, the temperature of radiofrequency ablation needs to be higher, generally between 60°C to 100°C, and sometimes even as high as 125°C. Preferably, in order to effectively kill tumor cells, a temperature of 80°C to 100°C or above is needed to ensure that the cells are irreversibly damaged and die. Preferably, in some cases, radiofrequency ablation can generate a temperature as high as 105°C to 110°C, so as to achieve the treatment effect. For example, when dealing with large volume tumors or specific types of lesions that are difficult to ablate, such high temperature helps to ensure that the cells in the tissue are irreversibly damaged, thereby achieving complete ablation.

[0073] Further, as shown in FIG. 1, the ablation detection electrode 109 is a first ablation electrode 1091 and a second ablation electrode 1092. Figure 2

[0074] ​​The first ablation electrode 1091 and the second ablation electrode 1092 are only conductive at the positions where the tips contact the tissue, and the rest positions are provided with an insulating layer.

[0075] Specifically, the insulating layer can ensure that the current only acts in the predetermined area. By limiting the range of current action within the treatment area, unnecessary current diffusion can be avoided, not only reducing the impact on surrounding healthy tissues, but also improving the accuracy and controllability of treatment.

[0076] In addition, using multiple ablation electrodes can flexibly adjust the ablation range and shape to adapt to different sizes and shapes of diseased tissues, enhancing the flexibility of treatment plans.

[0077] The preferred scheme is as follows Figure 9 In the switching circuit module 101, the D6PWM pin of the master chip Arduino Uno Rev3 is electrically connected with the IN7 pin of the chip ULN2003A, the OV pin of the chip ULN2003A is electrically connected with one end of JP1, the other end of JP1 is electrically connected with one end of the relay K2, the other end of the relay K2 is electrically connected with the resistor C1, the other end of the resistor C1 is electrically connected with the base of the transistor Q1, the emitter of the transistor Q1 is grounded, the collector of the transistor Q1 is electrically connected with one end of the light-emitting diode D1, and the other end of the light-emitting diode D1 is electrically connected with JP2.

[0078] The master chip Arduino Uno Rev3 is used to control the chip ULN2003A, realizing the rapid switching of ablation and detection functions to prevent strong current or interference signals in ablation from causing damage to the detection circuit.

[0079] Specifically, the master chip Arduino Uno Rev3 outputs a control signal through the D6PWM pin, which is input through the IN7 pin of the ULN2003A, and then controls the state of the relay K2. When the system needs to switch to the ablation mode, Arduino Uno Rev3 sends a signal to make the relay K2 close, allowing the ablation current to pass through; when it needs to switch to the detection mode, Arduino Uno Rev3 sends the opposite signal to make the relay K2 open, cutting off the ablation current path, protecting the detection circuit from strong current.

[0080] In addition, the transistor Q1 and the light-emitting diode D1 constitute an indication circuit. When the relay K2 is closed, the transistor Q1 is turned on, and the light-emitting diode D1 is lit, providing a visual cue for the operator that the system is currently in ablation mode; conversely, when the relay K2 is open, the light-emitting diode is extinguished, indicating that the system has switched to the detection mode.

[0081] Specifically, in the detection mode, the Arduino Uno Rev3 sends a low-level signal to the IN7 pin of the ULN2003A through the D6PWM pin, the OUT pin of the ULN2003A outputs a low level, so that one end of JP1 is grounded, and the relay K2 is in an open state due to the absence of voltage, cutting off the connection between the ablation module 102 and the original electrode, and the detection module 103 can perform detection operation through the detection electrode 1098. At this time, the light-emitting diode D1 is not lit, indicating that the system is in detection mode.

[0082] In the ablation mode, the Arduino Uno Rev3 sends a high-level signal to the IN7 pin of the ULN2003A through the D6PWM pin, and the OUT pin of the ULN2003A outputs a high level, so that one end of JP1 is connected to the power supply, the relay K2 is closed, the ablation module 102 is connected to the original electrode, and the ablation operation starts. The detection module 103 is disconnected from the detection electrode 1098 to avoid being affected by the ablation current. At this time, the light-emitting diode D1 is lit, indicating that the system is in ablation mode.

[0083] Further, the switching circuit module 101 is a manual switch group, which switches the conduction of the ablation module 102 or the detection module 103 and the ablation detection electrode 109 by manual means.

[0084] The manual switch group can be in the form of thyristor or relay, etc.

[0085] In one implementable mode, the manual switch group selects a thyristor, which can be used to control the switching of a high-power load and is suitable for occasions requiring frequent switching and large loads.

[0086] Specifically, when the D6PWM pin of the Arduino Uno Rev3 triggers the thyristor SCR1 to conduct, the ablation module 102 is connected to the ablation detection electrode 109, and the detection module 103 is disconnected from the detection electrode.

[0087] When the D6PWM pin of the Arduino Uno Rev3 stops triggering the thyristor SCR1, the detection module 103 is connected to the detection electrode, and the ablation module 102 is disconnected from the ablation detection electrode 109.

[0088] In another implementable mode, the manual switch group selects a relay, which provides reliable electrical isolation and is suitable for occasions requiring high reliability.

[0089] Specifically, when the D6PWM pin of the Arduino Uno Rev3 sends a high-level signal to the IN7 pin of the ULN2003A, the relay K2 is closed, the ablation module 102 is connected to the ablation detection electrode 109, and the detection module 103 is disconnected from the detection electrode.

[0090] When the D6PWM pin of the Arduino Uno Rev3 sends a low-level signal to the IN7 pin of the ULN2003A, the relay K2 is disconnected, the detection module 103 is connected to the detection electrode, and the ablation module 102 is disconnected from the ablation detection electrode 109.

[0091] The preferred solution is as follows Figure 11 In the detection module 103, the operation platform is electrically connected to the excitation and detection part;

[0092] A digital phase-sensitive detection and feedback compensation circuit and a reference calibration and switching circuit are provided in the excitation and detection part;

[0093] The digital phase-sensitive detection and feedback compensation circuit is used to provide an excitation signal and detect the impedance of the target tissue;

[0094] The reference calibration and switching circuit is used to calibrate the signal and provide a stable and accurate reference voltage.

[0095] Specifically, the operation platform is responsible for processing and analyzing signals from the detection electrode and generating corresponding control instructions based on the detection results. The operation platform has strong computing and data processing capabilities to ensure the accuracy of the detection data. The digital phase-sensitive detection and feedback compensation circuit is used to provide a stable excitation signal and detect the impedance changes of the target tissue. Through the phase-sensitive detection technology, useful signal components can be effectively extracted from background noise, and through the feedback compensation mechanism, the stability of the signal is ensured. The reference calibration and switching circuit is used to calibrate the detection signal to ensure the accuracy and consistency of the detection results, and also provides a stable and accurate reference voltage to eliminate the influence of external environmental factors on the detection results.

[0096] Further, the operation platform is electrically connected to the touch screen, and the operation platform is also connected to the local model, the local database and the network system. Specifically, through the touch screen, the doctor can intuitively view the detection results and operate the functions of the system. The local model and the local database store a large amount of data about tissue characteristics, which can help the system more accurately analyze the detection results.

[0097] In addition, through the connection with the network system, the system can update the latest medical data and technology in real time, improving the intelligent level of the system.

[0098] Embodiment 2:

[0099] The preferred solution is as follows Figure 3 In this embodiment, based on the second embodiment shown in embodiment 1, the main difference between the ablation detection electrode 109 in this embodiment and the ablation detection electrode 109 in embodiment 1 is:

[0100] In the embodiment, the ablation electrode is 1, and the first detection electrode 1093 and the second detection electrode 1094 are arranged on the ablation electrode;

[0101] The first detection electrode 1093 and the second detection electrode 1094 are insulated from the ablation electrode;

[0102] Specifically, by arranging the insulating layer on the non-contact part of the detection electrode, it is ensured that only the electrode tip contacts the tissue, thereby avoiding the disorderly diffusion of the current, thereby improving the accuracy of detection.

[0103] The ablation electrode is a single radio frequency electrode 1097 or a single microwave electrode 1098;

[0104] Both are used to deliver ablation energy to achieve ablation of the diseased tissue.

[0105] The corresponding ablation module 102 is a radio frequency ablation module or a microwave ablation module.

[0106] In an implementable manner, the ablation electrode is a single radio frequency electrode 1097, and the corresponding ablation module 102 is a radio frequency ablation module.

[0107] The radio frequency ablation module mainly consists of a radio frequency power supply, a frequency generator, a power regulator and a control unit; the radio frequency power supply provides energy for the module, the frequency generator generates radio frequency current, the power regulator adjusts the output power, and the control unit monitors and adjusts the output parameters to ensure the safety and effectiveness of the ablation process.

[0108] In implementation, the radio frequency ablation module generates radio frequency current to cause thermal effects in the tissue around the ablation electrode, thereby achieving ablation of the diseased tissue.

[0109] In another implementable manner, the ablation electrode is a single microwave electrode 1098, and the corresponding ablation module 102 is a microwave ablation module.

[0110] The microwave ablation module mainly consists of a microwave source, a power amplifier, a frequency controller and a control system; the microwave source generates microwave energy, the power amplifier amplifies the microwave energy to an appropriate level, the frequency controller ensures the stability of the microwave frequency, and the control system is responsible for monitoring the entire ablation process to ensure uniform distribution of microwave energy and achieve the desired treatment effect.

[0111] In implementation, the microwave ablation module generates microwave energy to cause thermal effects in the tissue around the ablation electrode, thereby achieving ablation of the diseased tissue. The generation and distribution of microwave energy are more uniform, which helps to improve the ablation effect.

[0112] Embodiment 3:

[0113] The preferred scheme is as follows Figure 6In this embodiment, the ablation detection electrode 109 in this embodiment is based on the third implementation shown in Embodiment 1. The main difference between the ablation detection electrode 109 in this embodiment and the ablation detection electrode 109 in Embodiment 1 is that:

[0114] In this embodiment, there are two ablation electrodes.

[0115] One detection electrode is provided on each ablation electrode, and the detection electrode is insulated from the ablation electrode.

[0116] In one implementation, switching circuit scheme one: ablation mode

[0117] Further, the two ablation electrodes are connected to the ablation module 102, and the two detection electrodes are disconnected from the detection module 103 to prevent interference with the ablation process.

[0118] In implementation, in this mode, the system focuses on ablation therapy, and the ablation module 102 outputs radio frequency energy to the lesion tissue through the two ablation electrodes to destroy abnormal tissue.

[0119] Switching circuit scheme two: detection mode

[0120] Further, the two ablation electrodes are disconnected from the ablation module 102, and the two detection electrodes are connected to the detection module 103.

[0121] In implementation, in this mode, the system focuses on detecting the state of the lesion tissue. The detection module 103 sends an excitation signal through the two detection electrodes and receives a feedback signal to evaluate the impedance and other characteristics of the lesion tissue, thereby confirming whether the treatment area is suitable.

[0122] Embodiment 4:

[0123] The preferred scheme is as follows Figure 7 In this embodiment, the ablation detection electrode 109 in this embodiment is based on the fourth implementation shown in Embodiment 1. The main difference between the ablation detection electrode 109 in this embodiment and the ablation detection electrode 109 in Embodiment 1 is that:

[0124] In this embodiment, there are two ablation electrodes.

[0125] Alternatively, a first detection electrode 1093 and a second detection electrode 1094 are provided on each ablation electrode, and the first detection electrode 1093 and the second detection electrode 1094 are insulated from the ablation electrode.

[0126] In one implementation, this embodiment has three circuit switching combination schemes.

[0127] Combination scheme one: ablation mode

[0128] Two ablation electrodes are connected to the ablation module 102, two first detection electrodes 1093 and two second detection electrodes 1094 are disconnected from the detection module 103 to prevent interference with the ablation process.

[0129] In implementation, in this mode, the system focuses on ablation therapy, and the ablation module 102 outputs radiofrequency energy to the lesion tissue through the two ablation electrodes to destroy abnormal tissue.

[0130] Combination scheme two: single group detection mode

[0131] Two ablation electrodes are disconnected from the ablation module 102, and a group of detection electrodes, such as the first detection electrodes 1093 and the second detection electrodes 1094, are connected to the detection module 103, and the other detection electrodes remain disconnected.

[0132] In implementation, in this mode, the system focuses on detecting the state of the lesion tissue. The detection module 103 sends excitation signals through the selected group of detection electrodes and receives feedback signals to evaluate the impedance and other characteristics of the lesion tissue, thereby confirming whether the treatment area is suitable.

[0133] Combination scheme three: multi-group detection mode

[0134] Two ablation electrodes are disconnected from the ablation module 102, and two groups of detection electrodes are connected to the detection module 103, such as two first detection electrodes 1093 and two second detection electrodes 1094 are disconnected from the detection module 103.

[0135] In implementation, in this mode, the system uses the information provided by all detection electrodes to comprehensively evaluate the state of the lesion tissue. The detection module 103 sends excitation signals through all detection electrodes and receives feedback signals to obtain more detailed data to guide the treatment plan. This mode is suitable for cases that require more detailed detection, such as large-volume lesions or multi-lesion detection.

[0136] Embodiment 5:

[0137] Based on the foregoing various embodiments:

[0138] The master processing module 104 is used for calculating and processing data. In this application, the master processing module 104 can analyze the data of the target tissue detected by the detection module 103.

[0139] The main control processing module 104 is a processor, which can include one or more processing units, for example: the processor can include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units can be independent devices or integrated in one or more processors. The controller can be the nerve center and command center of the ablation detection electrode device 10. The controller can generate operation control signals according to instruction operation codes and timing signals to complete the control of instruction fetching and instruction execution. The processor can also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor is a cache memory. The memory can save instructions or data that the processor has just used or repeatedly uses. If the processor needs to use the instructions or data again, it can directly call them from the memory. This avoids repeated access and reduces the waiting time of the processor, thereby improving the efficiency of the system.

[0140] The display module 107 is configured to display images, videos, and the like. The display module 107 can include a display panel, which can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flex light-emitting diode (FLED), a Miniled, a MicroLed, a Micro-oLed, a quantum dot light emitting diode (QLED), or the like. In some embodiments, the ablation detection electrode device 10 can include one or N display modules 107, where N is a positive integer greater than 1.

[0141] The impedance data acquisition module 105 is configured to receive impedance signals fed back by the detection electrodes and acquire the main control processing module 104.

[0142] The lesion position sensing module 106 can be configured to sense a target tissue.

[0143] The storage module 108 can be configured to store computer executable program code and data, the program code including instructions. The storage module 108 can store the code of the target tissue impedance data detection method provided by the embodiments of the present application. The host processing module 104 executes the instructions stored in the storage module 108, thereby performing various functional applications and data processing of the ablation detection electrode device 10. The data can include data required by the ablation detection electrode device 10 in performing the target tissue detection method, such as target tissue related parameters, impedance values, and the like.

[0144] It can be understood that the structure illustrated by the embodiments of the present application does not constitute a specific limitation on the ablation detection electrode device 10. In other embodiments of the present application, the ablation detection electrode device 10 can include more or fewer components than illustrated, or combine certain components, or split certain components, or different arrangement of components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

[0145] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer readable storage medium, or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, DVD), or semiconductor media (for example, solid state disk (SSD)) and the like.

[0146] The various illustrative logical blocks, modules, and circuits described in connection with the embodiments disclosed herein can be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor can be a microprocessor, but, in the alternative, the general purpose processor can be any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, e.g., a combination of a

[0147] The steps of a method or algorithm described in connection with the embodiments disclosed herein can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium can be integral to the processor. The processor and the storage medium can reside in an ASIC.

[0148] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart Figure 1 The flowchart and block diagram in the drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Figure 1 In this manner, computer readable media can take many forms, including but not limited to, non-volatile media and volatile media. Non-volatile media includes, for example, optical or magnetic disks and other persistent memory. Volatile media includes dynamic memories, and forms of

[0149] Although the present application has been described in connection with specific features thereof, it will be evident to an artisan of ordinary skill that many modifications and changes can be made to the application without departing from the spirit and scope of the application. Accordingly, all statements herein are intended to be illustrative only, and not limiting. It will be evident to one of ordinary skill in the art that the application can be practiced without these specific details. Furthermore, this application is intended to cover any and all modifications, variations, combinations or equivalents that fall within the scope of the present application. Accordingly, the application is intended to embrace all alternatives, modifications and variations that fall within the scope of the claims, in addition to those specifically set forth herein.

Claims

1. An ablation detection system, characterized in that: It comprises an ablation module (102), a detection module (103), a switching circuit module (101) and an ablation detection electrode (109); The ablation module (102) and the detection module (103) are both electrically connected to the switching circuit module (101), and the switching circuit module (101) is electrically connected to the ablation detection electrode (109); The ablation detection electrode (109) includes at least one ablation electrode for ablation treatment; The ablation detection electrode (109) further includes at least two detection electrodes for detecting the target tissue; The detection electrode is conductive only at the location where the tip contacts the tissue, and the rest of the location is provided with an insulating layer; The ablation module (102) is used to output an ablation current; The detection module (103) is used to output an excitation signal and receive a feedback signal to detect the target tissue; The switching circuit module (101) is used to switch the ablation module (102) or the detection module (103) to conduction with the ablation detection electrode (109).

2. The ablation detection system according to claim 1, wherein: The ablation detection electrodes (109) are a first ablation electrode (1091) and a second ablation electrode (1092); The first ablation electrode (1091) and the second ablation electrode (1092) are conductive only at the locations where the tips contact the tissue, and the remaining locations are provided with an insulating layer.

3. The ablation detection system according to claim 1, wherein: There is one ablation electrode, and a first detection electrode (1093) and a second detection electrode (1094) are provided on the one ablation electrode; The first detection electrode (1093) and the second detection electrode (1094) are insulated from the ablation electrode; The ablation electrode is a single radiofrequency electrode (1097) or a single microwave electrode (1098); The corresponding ablation module (102) is a radiofrequency ablation module or a microwave ablation module.

4. The ablation detection system according to claim 1, wherein: There are two ablation electrodes; A detection electrode is provided on each ablation electrode, and the detection electrode is insulated from the ablation electrode.

5. The ablation detection system according to claim 1, wherein: There are two ablation electrodes; Alternatively, a first detection electrode (1093) and a second detection electrode (1094) are provided on each ablation electrode, and the first detection electrode (1093) and the second detection electrode (1094) are insulated from the ablation electrode.

6. The ablation detection system according to any one of claims 1 to 5, characterized in that: The ablation detection electrode (109) is also provided with a temperature sensor, which is used to collect the temperature of the target tissue.

7. The ablation detection system according to any one of claims 1 to 5, characterized in that: In the switching circuit module (101), the D6PWM pin of the main control chip Arduino Uno Rev3 is electrically connected to the IN7 pin of the chip ULN2003A, the OV pin of the chip ULN2003A is electrically connected to one end of JP1, the other end of JP1 is electrically connected to one end of the relay K2, the other end of the relay K2 is electrically connected to the resistor C1, the other end of the resistor C1 is electrically connected to the base of the transistor Q1, the emitter of the transistor Q1 is grounded, the collector of the transistor Q1 is electrically connected to one end of the light-emitting diode D1, and the other end of the light-emitting diode D1 is electrically connected to JP2; The main control chip Arduino Uno Rev3 is used to control the chip ULN2003A to achieve rapid switching between ablation and detection functions, so as to prevent strong current or interference signals during ablation from damaging the detection circuit.

8. The ablation detection system according to any one of claims 1 to 5, characterized in that: The switching circuit module (101) is a manual switch group, which manually switches the conduction between the ablation module (102) or the detection module (103) and the ablation detection electrode (109).

9. The ablation detection system according to any one of claims 1 to 5, characterized in that: In the detection module (103), the computing platform is electrically connected to the excitation and detection parts; The excitation and detection part is equipped with a digital phase-sensitive detection and feedback compensation circuit and a reference calibration and switching circuit; The digital phase-sensitive detection and feedback compensation circuit is used to provide the excitation signal and detect the impedance of the target tissue; The reference calibration and switching circuit is used to calibrate the signal and provide a stable and accurate reference voltage.

10. The ablation detection system according to claim 9, characterized in that: The computing platform is electrically connected to the touch screen, and is also connected to a local model, a local database and a network system.

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