Electrode Temperature Detection Method and Tumor Electric Field Therapy System

Abstract

The present invention discloses a method for detecting the temperature of electrode plates and a tumor electric field treatment system. The system includes: at least a pair of electrode plates, each electrode plate including a plurality of electrode elements and a plurality of temperature sensors, each temperature sensor being arranged corresponding to one electrode element to detect the temperature at the corresponding electrode element. Each temperature sensor has a signal terminal and a ground terminal. The plurality of temperature sensors are configured into a plurality of row groups and a plurality of column groups in terms of circuit connection. The corresponding temperature sensors in each row group are connected in series and then connected to a first switch. The ground terminals of the corresponding temperature sensors in each column group are connected together and then connected to a second switch; a controller, configured to configure the switching timings of the first switch and the second switch to sample the analog temperature signals for detecting one or more corresponding combinations among all the temperature sensors of the electrode plates. Thus, without increasing the number of wire cores of the cable, a 100% temperature sensor coverage rate is achieved.

Description

[0001] This application is a divisional application of the invention patent application with the application date of December 30, 2022, application number 202211721902.5, and invention creation name "Electrode Sheet, Electrode Sheet Temperature Detection Method and Tumor Electric Field Therapy System". Technical Field

[0002] The present invention relates to the technical field of medical devices, and in particular to an electrode sheet temperature detection method and a tumor electric field therapy system. Background Art

[0003] Tumor electric field therapy is a tumor treatment method that uses an electric field generator to generate a low-intensity, medium-high frequency alternating electric field to interfere with the mitotic process of tumor cells. The electric field applied in this treatment method can affect the aggregation of tubulin, prevent the formation of the spindle, inhibit the mitotic process, and induce apoptosis of cancer cells.

[0004] Currently, a tumor electric field therapy system mainly includes an electric field generator, an adapter electrically connected to the electric field generator, and multiple pairs of electrode sheets electrically connected to the electric field generator through the adapter. The electric field generator transmits the alternating electric signal for tumor electric field therapy to each electrode sheet through the adapter, and then applies an alternating electric field to the tumor site of the patient through the paired electrode sheets for tumor electric field therapy. Among them, when the electric field is applied to the patient's body, heat will accumulate at the corresponding position where the electrode sheet is attached to the skin. Therefore, it is necessary to monitor the temperature of the electrode sheet attached to the corresponding body surface of the patient's tumor site in real time. When the body surface temperature is too high, it is necessary to adjust the intensity of the alternating electric field in time to avoid low-temperature burns of the patient's skin caused by excessive temperature.

[0005] In the related art, a thermistor element is provided on each corresponding electrode element of the electrode patch, and multiple thermistor elements are connected in parallel with each other. The temperature change of the corresponding electrode element is monitored in real time through the change in the resistance value of the thermistor element. For example, in an electrode patch with 9 electrode elements, 8 thermistor elements are provided, and the resistance values of the 8 thermistor elements are transmitted through a 10-core cable. The 10-core cable includes 1 alternating current signal line (AC line), 1 ground line, and 8 signal lines. The coverage rate of the thermistor elements in this electrode patch is approximately 89% (8 / 9≈0.89). When the number of electrode elements increases, if the number of thermistor elements remains unchanged, it is easy to cause low-temperature burns on the patient's skin. For example, in an electrode patch with 20 electrode elements, 8 thermistor elements are provided, and the coverage rate of the thermistor elements in this electrode patch is approximately 40% (8 / 20 = 0.4), that is, the temperature of more than half of the electrode elements cannot be monitored, and it is easy to cause low-temperature burns on the patient's skin. If a thermistor element is provided on each electrode element to maintain the coverage rate of the thermistor elements, then a cable with more wire cores is required, but this will cause the cable to become thicker and the softness of the cable to become harder, increasing the difficulty of cable fixation. At the same time, the overall weight of the electrode patch will increase due to the increase in the number of wire cores of the cable, which will not only affect the adhesion effect between the electrode patch and the corresponding body surface of the patient's tumor site, but also increase the burden on the patient and cause discomfort. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the first object of the present invention is to propose a tumor electro-field therapy system that can achieve a larger coverage rate of temperature sensors without increasing the number of wire cores of the cable, avoid excessive load on the electrode patch, and maintain the sticking effect of the electrode patch.

[0007] The second object of the present invention is to propose a tumor treatment device.

[0008] The third object of the present invention is to propose a method for detecting the temperature of an electrode patch.

[0009] The fourth object of the present invention is to propose a computer-readable storage medium.

[0010] The fifth object of the present invention is to propose an adapter for a tumor electro-field therapy system.

[0011] The sixth object of the present invention is to propose an electric field generator for a tumor electro-field therapy system.

[0012] To achieve the above object, the present invention provides a tumor electro-field therapy system, comprising: at least a pair of electrode plates, each of the electrode plates including a plurality of electrode elements and a plurality of temperature sensors, each of the electrode elements being capable of applying an alternating electric field, each of the temperature sensors being disposed corresponding to one of the electrode elements to detect the temperature at the corresponding electrode element, each of the temperature sensors having a signal terminal and a ground terminal, and the plurality of temperature sensors being configured into a plurality of row groups and a plurality of column groups in terms of circuit connection, the corresponding temperature sensors in each row group being connected in series and then connected to a first switch, and the ground terminals of the corresponding temperature sensors in each column group being connected together and then connected to a second switch; a controller for configuring the switching timings of the first switch and the second switch to sample the analog temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate.

[0013] In the tumor electro-field therapy system according to an embodiment of the present invention, by configuring a plurality of temperature sensors into a plurality of row groups and a plurality of column groups, and connecting the corresponding temperature sensors in each row group in series and then connecting to a first switch, and connecting the ground terminals of the corresponding temperature sensors in each column group together and then connecting to a second switch, so that by configuring the switching timings of the first switch and the second switch, the temperature signals detected by each temperature sensor can be sampled respectively, thereby achieving 100% coverage rate of the temperature sensors without increasing the number of cable cores, avoiding excessive load on the electrode plate, and maintaining the sticking effect of the electrode plate.

[0014] Furthermore, it further includes an ADC sampling unit, the controller is connected to the ADC sampling unit, and the controller is used to configure the switching timings of the first switch and the second switch, so that the ADC sampling unit samples the analog temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate, and operates and converts the analog temperature signals to obtain the digital temperature signals of each temperature sensor.

[0015] Furthermore, the controller is further used to identify the type of the corresponding electrode plate according to the temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate sampled by configuring the switching combination relationship between the first switch and the second switch.

[0016] Furthermore, the controller is further used to determine whether there is an abnormal temperature sensor in the corresponding electrode plate according to the temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate sampled by configuring the switching combination relationship between the first switch and the second switch.

[0017] Further, after the corresponding temperature sensors in each row group are connected in series, they are connected to a DC power supply through the series connection of the first switch and a voltage-dividing resistor. After the ground terminals of the corresponding temperature sensors in each column group are connected together, they are connected to a ground pin through the second switch.

[0018] Further, the electrode sheet further includes a plurality of diodes. Each diode has an anode and a cathode. Each diode is arranged corresponding to a temperature sensor. Wherein, after the ground terminal of the corresponding temperature sensor in each column group is connected to the anode of the corresponding diode, they are connected together through the cathode of the corresponding diode and then connected to the corresponding second switch.

[0019] Further, the plurality of electrode elements are configured as a plurality of row groups and a plurality of column groups in terms of circuit connection, and the number of the electrode elements in each row group is the same as that of the temperature sensors, and the number of the electrode elements in each column group is the same as that of the temperature sensors.

[0020] Further, there are four electrode sheets.

[0021] To achieve the above object, the present invention further provides a tumor treatment device. A tumor treatment device includes the aforementioned tumor electric field treatment system.

[0022] The tumor treatment device provided by the present invention can achieve a larger temperature sensor coverage rate without increasing the number of cable cores through the aforementioned tumor electric field treatment system, avoid excessive load on the electrode sheet, and maintain the sticking effect of the electrode sheet.

[0023] To achieve the above object, the present invention further provides a method for detecting the temperature of an electrode sheet. A method for detecting the temperature of an electrode sheet is applied to the aforementioned tumor electric field treatment system. The method includes: S210: Configure the switching timings of the first switch and the second switch to sample the analog temperature signals for detecting one or more corresponding combinations among all the temperature sensors of the electrode sheet, and obtain the digital temperature signals corresponding to each temperature sensor; S220: Determine the temperature at each electrode element according to the digital temperature signals.

[0024] The method for detecting the temperature of an electrode sheet provided by the present invention samples the temperature signals detected by each temperature sensor by configuring the switching timings of the first switch and the second switch to obtain temperature signals, and determines the temperature at each electrode element according to the temperature signals, so as to achieve a larger temperature sensor coverage rate without increasing the number of cable cores, avoid excessive load on the electrode sheet, and maintain the sticking effect of the electrode sheet.

[0025] Further, on the condition that the electrode sheet is qualified in the test, after obtaining the digital temperature signal in step S210, the method further includes:

[0026] Determine the switching combination relationship between the first switch and the second switch;

[0027] Identify the type of the corresponding electrode sheet according to the switching combination relationship between the first switch and the second switch and the temperature signals detected by one or more corresponding combinations among all the temperature sensors of the sampled electrode sheet.

[0028] Further, on the condition that the number of temperature sensors in each row group and each column group of the electrode sheet is determined, after obtaining the digital temperature signal in step S210, the method further includes:

[0029] Determine the switching combination relationship between the first switch and the second switch;

[0030] Judge whether there is an abnormal temperature sensor in the corresponding electrode sheet according to the switching combination relationship between the first switch and the second switch and the temperature signals detected by each of the sampled temperature sensors.

[0031] To achieve the above object, the present invention also provides a computer-readable storage medium. A computer-readable storage medium, on which an electrode sheet temperature detection program is stored. When the electrode sheet temperature detection program is executed by a controller, the foregoing electrode sheet temperature detection method is implemented.

[0032] The computer-readable storage medium provided by the present invention can achieve a larger temperature sensor coverage rate without increasing the number of cable cores, avoid excessive load on the electrode sheet, and maintain the sticking effect of the electrode sheet by executing the foregoing electrode sheet temperature detection method.

[0033] To achieve the above object, the present invention also provides an adapter for a tumor electrotherapy system. An adapter for a tumor electrotherapy system includes a memory, a controller, and an electrode sheet temperature detection program stored on the memory and executable on the controller. When the controller executes the electrode sheet temperature detection program, the foregoing electrode sheet temperature detection method is implemented.

[0034] The adapter for a tumor electrotherapy system provided by the invention can achieve a larger temperature sensor coverage rate without increasing the number of cable cores, avoid excessive load on the electrode sheet, and maintain the sticking effect of the electrode sheet by executing the foregoing electrode sheet temperature detection method.

[0035] To achieve the above object, the present invention further provides an electric field generator for a tumor electric field treatment system. An electric field generator for a tumor electric field treatment system includes a memory, a controller, and an electrode sheet temperature detection program stored on the memory and executable on the controller. When the controller executes the electrode sheet temperature detection program, the foregoing electrode sheet temperature detection method is implemented.

[0036] The electric field generator for a tumor electric field treatment system provided by the invention can achieve a larger temperature sensor coverage rate without increasing the number of cable cores, avoid excessive load on the electrode sheet, and maintain the sticking effect of the electrode sheet by executing the foregoing electrode sheet temperature detection method.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 FIG. is a schematic structural diagram of a tumor electric field treatment system according to an embodiment of the present invention;

[0039] Figure 2 is Figure 1 a schematic block diagram of an electrode sheet and an adapter in;

[0040] Figure 3 is Figure 1 a schematic block diagram of the internal structure of the adapter in;

[0041] Figure 4 FIG. is a schematic flowchart of an electrode sheet temperature detection method for a tumor electric field treatment system according to the first embodiment of the present invention.

[0042] REFERENCE SIGNS:

[0043] 1000, tumor electric field treatment system; 100, X1, Y1, X2, and Y2 electrode sheets; 111, substrate; 112, electrode element; 113, temperature sensor; 113A, signal terminal; 113B, ground terminal; 114, diode; 114A, anode; 114B, cathode; 115, first cable; 120, adapter; 121, temperature detection switch unit; 122, ADC sampling unit; 123, controller; 124, serial communication unit; 125, second cable; 126, inverter; 130, electric field generator; 140, first connector; 141, first plug; 142, first socket; 150, second connector; 151, second plug; 152, second socket; K1, K2, K3, and K4, first switches; K5, K6, K7, K8, and K9, second switches; R1-R16, voltage dividing resistors; VCC, DC power supply; GND, ground pin. Detailed implementation manners

[0044] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0045] Referring to Figure 1 as shown, the tumor electric field therapy system 1000 includes: at least a pair of electrode patches 100, an adapter 120 electrically connected to each electrode patch 100, and an electric field generator 130 electrically connected to the adapter 120. At least a pair of electrode patches 100 are arranged in pairs on the patient's body surface. For example, Figure 1 the four electrode patches X1, Y1, X2, and Y2 in, and every two electrode patches are attached to the body surface corresponding to the patient's tumor site as a pair. The electric field generator 130 is used to generate an alternating electric signal, and switch and transmit the alternating electric signal to at least a pair of electrode patches 100 through the adapter 120. Each pair of electrode patches 100 applies the alternating electric signal to the patient's tumor site, so as to generate a therapeutic alternating electric field (i.e., tumor treatment electric field) between the same pair of electrode patches 100 and act on the patient's tumor site to treat the patient's tumor. The alternating electric signals applied by the two electrode patches 100 in the same pair of electrode patches 100 are different. The two electrode patches 100 respectively apply a set of alternating electric signals with opposite polarities, and generate an alternating electric field in one direction between the two electrode patches 100. Different pairs of electrode patches 100 generate alternating electric fields in different directions.

[0046] Referring to Figure 2 as shown, each electrode patch 100 includes a substrate 111, a plurality of electrode elements 112 disposed on the substrate 111, and a plurality of temperature sensors 113. As Figure 1 shown, the plurality of electrode elements 112 are arranged substantially in an array, and each electrode element 112 can apply an alternating electric signal. The plurality of electrode elements 112 of the same electrode patch 100 all apply the same alternating electric signal. Each temperature sensor 113 is disposed corresponding to one electrode element 112, and the number of temperature sensors 113 is equal to the number of electrode elements 112, that is, the coverage rate of the temperature sensors 113 on the electrode patch 100 reaches 100%. As Figure 2 shown, in this embodiment, each electrode patch 100 includes 20 electrode elements 112, and each electrode element 112 is correspondingly provided with a temperature sensor 113, and the temperature at the corresponding electrode element 112 is detected by the temperature sensor 113.

[0047] Each electrode element 112 is provided with a through-hole 116, and a corresponding temperature sensor 113 is adapted to be received in the through-hole 116, so as to realize real-time monitoring of the temperature of each electrode element 112, and avoid the situation that the temperature of some electrode elements 112 cannot be monitored, resulting in too high temperature on the patient's body surface and causing hypothermic burns to the patient. As Figure 2 shown, the through-hole 116 of each electrode element 112 is located in the middle thereof. In this embodiment, the electrode element 112 is a dielectric element. Preferably, the electrode element 112 is a ceramic sheet.

[0048] As Figure 2 shown, a plurality of electrode elements 112 and a plurality of correspondingly arranged temperature sensors 113 are both configured as at least three row groups and at least three column groups in terms of the circuit connection structure. It should be noted that this arrangement is to more clearly show the internal situation of the electrode sheet 100 and the electrical connection between the electrode sheet 100 and the adapter 120, and does not represent the arrangement of the electrode elements 112 in the spatial structure, and its spatial structure may be as Figure 1 shown, a structure that is roughly in an array. The number of electrode elements 112 and temperature sensors 113 in the same row group is the same, and the number of electrode elements 112 and temperature sensors 113 in the same column group is the same. A plurality of electrode elements 112 in each row group are all connected in parallel to the same line, and the lines to which the plurality of electrode elements 112 in each row group are connected in parallel are cascaded into one line, and this line is an alternating current signal line (AC line) for transmitting an alternating current signal to the plurality of electrode elements 112.

[0049] Both ends of each temperature sensor 113 are a signal terminal 113A and a ground terminal 113B respectively. A plurality of temperature sensors 113 in the same row group are connected in series, and one signal terminal 113A located at the end of each row group is connected to the DC power supply VCC through a series-connected first switch (one of K1, K2, K3, and K4) and a voltage-dividing resistor (one of R1, R2, R3, and R4). After the ground terminals 113B of the corresponding temperature sensors 113 in each column group are connected together, they are connected to the ground pin GND through a second switch (one of K5, K6, K7, K8, and K9). The total number of the first switch (K1-K4) and the second switch (K5-K9) does not exceed 9, so as to sample the analog temperature signals detected by one or more corresponding combinations of all the temperature sensors 113 of the electrode sheet 100 by configuring the switching timings of the first switch and the second switch.

[0050] In this embodiment, each electrode sheet has 20 electrode elements 112, and the 20 electrode elements 112 are configured into four row groups and five column groups. Each row group has five temperature sensors 113, and each column group has four temperature sensors 113. The 20 electrode elements 112 are connected in a topological structure and are connected in parallel to an alternating current signal line (AC line) to transmit an alternating current signal by the alternating current signal line (AC line), and a treatment electric field for treating tumors is formed between the opposite electrode sheets 100. After the corresponding five temperature sensors 113 in each row group are connected in series, they are connected to the DC power supply VCC through a series-connected first switch (one of K1, K2, K3, and K4) and a voltage-dividing resistor (one of R1, R2, R3, and R4). After the ground terminals 113B of the corresponding four temperature sensors 113 in each column group are connected together, they are connected to the ground pin GND through a second switch (one of K5, K6, K7, K8, and K9), so that the analog temperature signals detected by the corresponding temperature sensors 113 are sampled by configuring the switching sequences of the first switch (K1, K2, K3, and K4) and the second switch (K5, K6, K7, K8, and K9). As Figure 2 shown, all the temperature sensors 113 in the same row group are connected in series into a line (such as one of the lines 1, 2, 3, and 4) and are connected to the DC power supply VCC through a line connected to the signal terminal 113A of one at the end of each row group. The ground terminals 113B of all the temperature sensors 113 in the same row group are respectively connected to the ground pin GND by 5 ground wires (such as ground wires 5, 6, 7, 8, and 9) in one-to-one correspondence. The ground terminals 113B of all the temperature sensors 113 in the same column group are connected to the same ground wire (such as one of the lines of ground wires 5, 6, 7, 8, or 9). Each row group of serially arranged temperature sensors 113 is connected in series with a first switch (such as one of the first switches K1, K2, K3, and K4) and a voltage-dividing resistor (such as one of the voltage-dividing resistors R1, R2, R3, and R4) at the DC power supply VCC end, and the voltage-dividing resistors (such as the voltage-dividing resistors R1, R2, R3, and R4) are closer to the DC power supply VCC end than the first switch (such as the first switches K1, K2, K3, and K4). Each ground wire (such as one of the ground wires 5, 6, 7, 8, and 9) is connected in series with a second switch (such as one of the second switches K5, K6, K7, K8, and K9). It should be noted that the types of the first switch and the second switch are not limited. For example, they can be normally open switches or normally closed switches, or active switch tubes or passive switch tubes.

[0051] Specifically, referring to Figure 2As shown, five temperature sensors 113 (corresponding serial numbers are 1, 2, 3, 4, and 5) in the first row group are connected in series end to end to form a circuit 1, which is connected to the DC power supply VCC, and is also connected to the first switch K1 and the voltage-dividing resistor R1. The grounding end 113B of the first temperature sensor 113 (corresponding serial number is 1) in the first row group is connected to the grounding wire 5 and is also connected to the second switch K5. The grounding end 113B of the second temperature sensor 113 (corresponding serial number is 2) is connected to the grounding wire 6 and is also connected to the second switch K6. The grounding end 113B of the third temperature sensor 113 (corresponding serial number is 3) is connected to the grounding wire 7 and is also connected to the second switch K7. The grounding end 113B of the fourth temperature sensor 113 (corresponding serial number is 4) is connected to the grounding wire 8 and is also connected to the second switch K8. The grounding end 113B of the fifth temperature sensor 113 (corresponding serial number is 5) is connected to the grounding wire 9 and is also connected to the second switch K9.

[0052] Five temperature sensors 113 (corresponding serial numbers are 6, 7, 8, 9, and 10) in the second row group are connected in series end to end to form a circuit 2, which is connected to the DC power supply VCC, and is also connected to the first switch K2 and the voltage-dividing resistor R2. The grounding end 113B of the first temperature sensor 113 (corresponding serial number is 6) in the second row group is connected to the grounding wire 5 and is also connected to the second switch K5. The grounding end 113B of the second temperature sensor 113 (corresponding serial number is 7) is connected to the grounding wire 6 and is also connected to the second switch K6. The grounding end 113B of the third temperature sensor 113 (corresponding serial number is 8) is connected to the grounding wire 7 and is also connected to the second switch K7. The grounding end 113B of the fourth temperature sensor 113 (corresponding serial number is 9) is connected to the grounding wire 8 and is also connected to the second switch K8. The grounding end 113B of the fifth temperature sensor 113 (corresponding serial number is 10) is connected to the grounding wire 9 and is also connected to the second switch K9.

[0053] Five temperature sensors 113 (corresponding serial numbers are 11, 12, 13, 14, and 15) in the third row group are connected in series end to end to form a circuit 3, which is connected to the DC power supply VCC, and is also connected to the first switch K3 and the voltage-dividing resistor R3. The grounding end 113B of the first temperature sensor 113 (corresponding serial number is 11) in the third row group is connected to the grounding wire 5 and is also connected to the second switch K5. The grounding end 113B of the second temperature sensor 113 (corresponding serial number is 12) is connected to the grounding wire 6 and is also connected to the second switch K6. The grounding end 113B of the third temperature sensor 113 (corresponding serial number is 13) is connected to the grounding wire 7 and is also connected to the second switch K7. The grounding end 113B of the fourth temperature sensor 113 (corresponding serial number is 14) is connected to the grounding wire 8 and is also connected to the second switch K8. The grounding end 113B of the fifth temperature sensor 113 (corresponding serial number is 15) is connected to the grounding wire 9 and is also connected to the second switch K9.

[0054] Five temperature sensors 113 in the fourth row group (with corresponding serial numbers 16, 17, 18, 19, and 20) are connected in series end to end to form a circuit 4, which is connected to a DC power supply VCC, and a first switch K4 and a voltage-dividing resistor R4 are connected. The grounding end 113B of the first temperature sensor 113 (with corresponding serial number 16) in the fourth row group is connected to a ground wire 5 and a second switch K5. The grounding end 113B of the second temperature sensor 113 (with corresponding serial number 17) is connected to a ground wire 6 and a second switch K6. The grounding end 113B of the third temperature sensor 113 (with corresponding serial number 18) is connected to a ground wire 7 and a second switch K7. The grounding end 113B of the fourth temperature sensor 113 (with corresponding serial number 19) is connected to a ground wire 8 and a second switch K8. The grounding end 113B of the fifth temperature sensor 113 (with corresponding serial number 20) is connected to a ground wire 9 and a second switch K9.

[0055] Each electrode plate 100 further includes a plurality of diodes 114, and each diode 114 is arranged corresponding to a temperature sensor 113. The diode 114 has an anode 114A and a cathode 114B. After the grounding ends 113B of the respective temperature sensors 113 in each column group are connected to the anodes 114A of the corresponding diodes 114, they are connected together through the cathodes 114B of the corresponding diodes 114. As Figure 2As shown, the ground terminals 113B of the respective temperature sensors 113 in the first column group (corresponding serial numbers are 1, 6, 11, and 16) are respectively connected to a diode 114, and the anode 114A of the diode 114 is connected to the ground terminal 113B of the corresponding temperature sensor 113. The cathodes 114B of the respective diodes 114 in the first column group are all connected to the ground wire 5; the ground terminals 113B of the respective temperature sensors 113 in the second column group (corresponding serial numbers are 2, 7, 12, and 17) are respectively connected to a diode 114, and the anode 114A of the diode 114 is connected to the ground terminal 113B of the corresponding temperature sensor 113. The cathodes 114B of the respective diodes 114 in the second column group are all connected to the ground wire 6; the ground terminals 113B of the respective temperature sensors 113 in the third column group (corresponding serial numbers are 3, 8, 13, and 18) are respectively connected to a diode 114, and the anode 114A of the diode 114 is connected to the ground terminal 113B of the corresponding temperature sensor 113. The cathodes 114B of the respective diodes 114 in the third column group are all connected to the ground wire 7; the ground terminals 113B of the respective temperature sensors 113 in the fourth column group (corresponding serial numbers are 4, 9, 14, and 19) are respectively connected to a diode 114, and the anode 114A of the diode 114 is connected to the ground terminal 113B of the corresponding temperature sensor 113. The cathodes 114B of the respective diodes 114 in the fourth column group are all connected to the ground wire 8; the ground terminals 113B of the respective temperature sensors 113 in the fifth column group (corresponding serial numbers are 5, 10, 15, and 20) are respectively connected to a diode 114, and the anode 114A of the diode 114 is connected to the ground terminal 113B of the corresponding temperature sensor 113. The cathodes 114B of the respective diodes 114 in the fifth column group are all connected to the ground wire 9. That is, a diode 114 is respectively connected between the ground terminals 113B of all the temperature sensors 113 in the same column group and the ground pin GND. Through this diode 114, it is possible to effectively prevent other temperature sensors 113 from affecting the resistance value of the corresponding temperature sensor 113 detected by the switching sequence control of the first switch and the second switch.

[0056] As Figures 1 - 3 shown, a first connector 140 is connected between each electrode plate 100 and the adapter 120. The first connector 140 is adapted to connect the corresponding electrode plate 100 to the adapter 120. Each electrode plate 100 has a first cable 115 electrically connected to its substrate 111. The first connector 140 includes a first plug 141 provided at one end of the first cable 115 away from the substrate 111 and a first socket 142 provided on the adapter 120. The first plug 141 and the first socket 142 are push-button spring connectors, that is, the first connector 140 connects the adapter 120 and the electrode plate 100 in a plug-and-socket manner.

[0057] AsFigure 1 As shown, four electrode pads X1, Y1, X2, and Y2 are respectively connected to an adapter 120 through a first connector 140. Among them, electrode pads X1 and X2 are configured as a pair of electrode pads 100, and electrode pads Y1 and Y2 are configured as another pair of electrode pads 100. As Figure 3 shown, each first connector 140 is respectively connected Figure 3 to a corresponding one of the lines a1, a2, a3, and a4 in the figure to transmit an alternating current signal with a corresponding polarity in a corresponding direction, so as to generate a therapeutic electric field for treating tumors between a corresponding pair of electrode pads 100 (such as electrode pads X1 and X2 or electrode pads Y1 and Y2). It can be understood that the lines a1, a2, a3, and a4 are AC lines that transmit alternating current signals with corresponding polarities in corresponding directions, and extend into a corresponding one of the electrode pads 100 to provide corresponding alternating current signals for multiple electrode elements 112 of the electrode pad 100. The lines a1, a2, a3, and a4 are connected with a second connector 150 in a direction away from the first connector 140, and the second connector 150 is connected to an electric field generator 130. The electric field generator 130 is powered by a DC power supply, which generates two groups of alternately switched alternating current signals through inversion, filtering, etc. Each group of alternating current signals is two alternating current signals with opposite polarities. The two groups of alternating current signals generated by the electric field generator 130 are respectively transmitted to multiple electrode elements 112 of a corresponding one of the electrode pads 100 through the second connector 150, a corresponding one of the lines a1, a2, a3, and a4, and the corresponding first connector 140. In addition, the electric field generator 130 also transmits the DC power supply to multiple temperature sensors 113 of a corresponding one of the electrode pads 100 through the second connector 150, the power line and ground line of the DC power supply VCC inside the adapter 120, and the corresponding first connector 140, so that the corresponding temperature sensors 113 work and generate analog temperature signals.

[0058] As Figures 2 - 3 shown, each first connector 140 is also respectively connected to a group of temperature switching acquisition lines a5, a6, a7, or a8 with 9 lines. Each temperature switching acquisition line includes: 4 lines respectively connected to first switches K1, K2, K3, and K4 and 5 ground lines respectively connected to second switches K5, K6, K7, K8, and K9. Combining Figures 1 to 3 shown, the first cable 115 of the electrode pad X1 is connected to 10 lines combined by the line a1 and a5 connected to the first connector 140. By analogy, the first cable 115 of the electrode pad Y1 is connected to 10 lines combined by the line a2 and a6 connected to the first connector 140, the first cable 115 of the electrode pad X2 is connected to 10 lines combined by the line a3 and a7 connected to the first connector 140, and the electrode pad Y2 is connected to 10 lines composed of the line a4 and a8 connected to the first connector 140. Correspondingly, asFigures 1 - 2 As shown, each first cable 115 between each electrode piece 100 and the corresponding first connector 140 is a 10-core cable.

[0059] As Figures 2 - 3 shown, a plurality of first switches (K1, K2, K3, and K4) and a plurality of second switches (K5, K6, K7, K8, and K9) connected to each first connector 140 form a temperature detection switch unit 121, and the temperature detection switch unit 121 and voltage dividing resistors (such as voltage dividing resistors R1-R4, R5-R8, R9-R12, or R13-R16) connected to the first switches in each temperature detection switch unit 121 are all located in the adapter 120. The adapter 120 includes the aforementioned plurality of temperature detection switch units 121, voltage dividing resistors (such as voltage dividing resistors R1-R4, R5-R8, R9-R12, or R13-R16), and further includes an ADC sampling unit 122 for collecting the analog temperature signals of the corresponding temperature sensors 113, and a controller 123 for controlling the sequential on / off of the plurality of first switches and the plurality of second switches in the corresponding temperature detection switch unit 121. The controller 123 is used to configure the switch timings of the plurality of first switches and the plurality of second switches of the temperature detection switch unit 121, select one first switch (for example, one of K1, K2, K3, and K4) and one second switch (for example, one of K5, K6, K7, K8, and K9) to close, so as to energize the temperature sensor 113 of the corresponding electrode piece 100, so that the corresponding temperature sensor 113 generates an analog temperature signal. The analog temperature signal is transmitted to the ADC sampling unit 122 through the corresponding first connector 140, 9-channel temperature switching acquisition lines (such as temperature switching acquisition lines a5, a6, a7, or a8), and the temperature detection switch unit 121. The ADC sampling unit 122 collects the analog temperature signal, and then the controller 123 operates and converts the analog temperature signal collected by the ADC sampling unit 122 into a digital temperature signal.

[0060] The plurality of temperature detection switch units 121 in the adapter 120 respectively transmit the analog temperature signals to the corresponding channels of the ADC sampling unit 122 through a set of line groups (one of a9, a10, a11, and a12). Combining Figure 2 and Figure 3As shown, in this embodiment, four temperature detection switch units 121 respectively transmit analog temperature signals to corresponding channels of the ADC sampling unit 122 through a set of line groups (one of a9, a10, a11, and a12). Specifically, the temperature detection switch unit 121 corresponding to the electrode plate X1 transmits the analog temperature signal generated by the corresponding temperature sensor 113 of the electrode plate X1 to channels 1-4 of the ADC sampling unit 122 through the 4-line group a9; the temperature detection switch unit 121 corresponding to the electrode plate Y1 transmits the analog temperature signal generated by the corresponding temperature sensor 113 of the electrode plate Y1 to channels 5-8 of the ADC sampling unit 122 through the 4-line group a10; the temperature detection switch unit 121 corresponding to the electrode plate X2 transmits the analog temperature signal generated by the corresponding temperature sensor 113 of the electrode plate X2 to channels 9-12 of the ADC sampling unit 122 through the 4-line group a11; the temperature detection switch unit 121 corresponding to the electrode plate Y2 transmits the analog temperature signal generated by the corresponding temperature sensor 113 of the electrode plate Y2 to channels 13-16 of the ADC sampling unit 122 through the 4-line group a12. The controller 123 controls the on / off of multiple first switches and multiple second switches in the corresponding temperature detection switch unit 121, and closes one first switch (such as one of K1, K2, K3, and K4) and one second switch (such as one of K5, K6, K7, K8, and K9) to enable the corresponding temperature sensor 113 to generate an analog temperature signal. The ADC sampling unit 122 collects this analog temperature signal and transmits it to the corresponding channel of the ADC sampling unit 122 through a line connected to the closed first switch. That is, when the ADC acquisition unit 122 collects the analog temperature signals of the corresponding temperature sensors 113 on each electrode plate 100, it is transmitted to its corresponding channel through a line in the corresponding line group (one of a9, a10, a11, and a12) connected to the closed first switch.

[0061] As Figures 2 - 3 shown, the adapter 120 further includes a serial communication unit 124, and the serial communication unit 124 transmits the digital temperature signal calculated and converted by the controller 123 to the electric field generator 130. Specifically, the controller 123 controls the on / off of multiple first switches and multiple second switches in each temperature detection switch unit 121, and closes one first switch (such as one of K1, K2, K3, and K4) and one second switch (such as one of K5, K6, K7, K8, and K9) to sequentially obtain the analog temperature signals generated by the corresponding temperature sensors 113 in the electrode plate 100. As Figure 2As shown in the figure, when the controller 123 controls the first switch K1 and the second switch K5 to conduct and other switches to disconnect, the ADC sampling unit 122 samples the analog temperature signal of the first temperature sensor 113 (corresponding serial number is 1) in the first row group; when the controller 123 controls the first switch K1 and the second switch K6 to conduct and other switches to disconnect, the ADC sampling unit 122 samples the combined analog temperature signal of the first to second temperature sensors 113 (corresponding serial numbers are 1 and 2) in the first row group; when the controller 123 controls the first switch K1 and the second switch K7 to conduct and other switches to disconnect, the ADC sampling unit 122 samples the combined analog temperature signal of the first to third temperature sensors 113 (corresponding serial numbers are 1, 2, and 3) in the first row group; when the controller 123 controls the first switch K1 and the second switch K8 to conduct and other switches to disconnect, the ADC sampling unit 122 samples the analog temperature signal of the first to fourth temperature sensors 113 (corresponding serial numbers are 1, 2, 3, and 4) in the first row group; when the controller 123 controls the first switch K1 and the second switch K9 to conduct and other switches to disconnect, the ADC sampling unit 122 samples the analog temperature signal of the first to fifth temperature sensors 113 (corresponding serial numbers are 1, 2, 3, 4, and 5) in the first row group. And so on, the analog temperature signals generated by the temperature sensors 113 in other row groups can be obtained. The serial communication unit 124 is controlled by the controller 123, and the digital temperature signals obtained by the operation and conversion of the controller 123 are serially transmitted through the serial communication unit 124 for the digital temperature signals of each temperature sensor 113, such as transmitted to the electric field generator 130.

[0062] Preferably, the temperature sensor 113 is a thermistor. As Figure 2 shown in the figure, when the serial numbers 1-20 are used as the temperature measurement point labels, the resistance value of the thermistor corresponding to each temperature measurement point label can be represented by Rtn. For example, the resistance value of the thermistor corresponding to the temperature measurement point label 1 is Rt1, specifically the resistance value corresponding to the temperature of the first thermistor in the first row group, the resistance value of the thermistor corresponding to the temperature measurement point label 2 is Rt2, specifically the resistance value corresponding to the temperature of the second thermistor in the first row group, and so on.

[0063] After the controller 123 obtains the analog temperature signal corresponding to the temperature measurement point label, the analog temperature signal is the resistance value of one or more combinations corresponding to the corresponding ones among all the temperature sensors 113 of the electrode plate 100, and the actual temperature of the thermistor corresponding to the temperature measurement point label is calculated through the following formula (1):

[0064] (1)

[0065] Among them, Tn is the actual temperature of the thermistor corresponding to the temperature measurement point label n, x is the analog temperature signal corresponding to the temperature measurement point label n obtained by sampling, span is the maximum range of the ADC sampling unit 122. For example, when the ADC sampling unit 122 uses a 16-bit sampling chip, span is 65535, R is the resistance value of the voltage-dividing resistor, such as the resistance values of the voltage-dividing resistors R1, R2, R3 or R4.

[0066] The resistance value of the thermistor corresponding to the temperature measurement point label can be calculated through the following formula (2):

[0067] (2)

[0068] It can be understood that by transforming formula (2), when obtaining the resistance value of the thermistor corresponding to the temperature measurement point label, the analog temperature signal of the thermistor corresponding to the temperature measurement point label can be obtained:

[0069] (3)

[0070] Among them, y is the analog temperature signal of the thermistor corresponding to the temperature measurement point label.

[0071] It should be noted that by selecting voltage-dividing resistors with appropriate resistance values, such as voltage-dividing resistors R1, R2, R3 and R4, the current flowing through the thermistor can be restricted to avoid excessive temperature rise of the thermistor caused by excessive current, thereby affecting the test accuracy. In severe cases, it may even cause damage to the thermistor, etc.

[0072] Under the condition that the foregoing electrode sheet 100 is qualified in the test, due to the characteristic that the temperature sensor 113 and the electrode element 112 are arranged in one-to-one correspondence, the controller 123 can also configure the switching combination relationship of each first switch and second switch in each temperature detection switch unit 121, so as to identify the electrode sheet 100 (which electrode elements 112 the electrode sheet 100 belongs to) according to the analog temperature signal of each temperature sensor 113 sampled. It should be noted that the qualified electrode sheet 100 at least includes: all temperature sensors 113 and their electrical connections are normal, and all electrode elements 112 and their electrical connections are normal. The type of the electrode sheet 100 here is determined based on the number of electrode elements 112 included in the electrode sheet 100. For example, the electrode sheet 100 with 20 electrode elements 112 is one type, the electrode sheet 100 with 16 electrode elements 112 is another type, and the electrode sheet 100 with 9 electrode elements 112 is yet another type.

[0073] Such as Figure 2As shown, under the condition that the foregoing electrode sheet 100 passes the test, when the tumor electric field treatment system is initialized, the electric field generator 130 does not transmit an alternating current signal to the plurality of electrode elements 112 of the adapter 120 and the electrode sheet 100 at first. Instead, it only transmits the DC power supply VCC to operate the corresponding temperature sensors 113 of the adapter 120 and the electrode sheet 100, so as to avoid the influence of the alternating electric field generated by the alternating current signal on the analog temperature signal detected by the temperature sensor 113 due to temperature change. The analog temperature signals generated by each temperature sensor 113 of the electrode sheet 100 are approximately the same, and the corresponding actual temperatures and resistance values are also approximately the same. For example, the resistance values Rt1, Rt2, Rt3, Rt4, and Rt5 of the thermistors corresponding to the temperature measurement point labels 1, 2, 3, 4, and 5 are approximately the same. The controller 123 can obtain the combined resistance value Rt of the five thermistors in the first row group by controlling the first switch K1 and the second switch K9 to conduct and other switches to disconnect. Since Rt = Rt1 + Rt2 + Rt3 + Rt4 + Rt5 and Rt1, Rt2, Rt3, Rt4, and Rt5 are approximately the same, Rt is approximately equal to 5 times Rt1. Similarly, the combined resistance values of the five thermistors in the second row group, the third row group, and the fourth row group can be obtained as a 5-fold relationship between Rt and Rt1 respectively. Therefore, the number of electrode elements 112 in the electrode sheet 100 can be calculated, and thus it can be determined that the type of the electrode sheet 100 is the electrode sheet 100 with 20 electrode elements 112. According to the sampled analog temperature signal, the actual temperature Tz1 corresponding to each thermistor can be calculated through the above formula (1). Similarly, the actual temperatures Tz2, Tz3, and Tz4 of each thermistor in the second row group, the third row group, and the fourth row group can be obtained respectively, and Tz1, Tz2, Tz3, and Tz4 are approximately the same, and are all approximately the actual temperature corresponding to Rt1.

[0074] As Figure 2 shown, the controller 123 can also configure the switch combination relationship of each first switch and second switch in each temperature detection switch unit 121, so as to determine whether there is an abnormal temperature sensor 113 in the electrode sheet 100 according to the analog temperature signal detected according to one or more corresponding combinations of all the temperature sensors 113 of the electrode sheet 100 sampled.

[0075] As Figure 2As shown, before the electric field generator 130 transmits an alternating current signal to the plurality of electrode elements 112 of the adapter 120 and the electrode plate 100, it first transmits the DC power supply VCC to the corresponding temperature sensors 113 of the adapter 120 and the electrode plate 100 to operate, so as to avoid the influence of the alternating electric field generated by the alternating current signal on the analog temperature signal detected by the temperature sensor 113 due to temperature changes. The analog temperature signals generated by each temperature sensor 113 (thermistor) of the electrode plate 100 are approximately the same, and the corresponding actual temperatures and resistance values are also approximately the same. That is, the total resistance values corresponding to all the thermistors in each row group with the same number of thermistors are approximately the same after being combined.

[0076] Collect and compare the total resistance values corresponding to all the thermistors in each row group. For example, control the first switch K1 and the second switch K9 to conduct, and other switches to disconnect, to obtain the total resistance value corresponding to the five thermistors in the first row group after being combined. Then control the first switch K2 and the second switch K9 to conduct, and other switches to disconnect, to obtain the total resistance value corresponding to the five thermistors in the second row group after being combined, and so on, to complete the total resistance values corresponding to the five thermistors in all row groups after being combined. Finally, determine whether the total resistance values corresponding to the five thermistors in each group are the same or close to each other to determine whether each thermistor is abnormal. In this process, if the total resistance values corresponding to the five thermistors in each group are approximately the same, then each temperature sensor 113 (thermistor) of the electrode plate 100 is normal. If the total resistance value corresponding to the five thermistors in a certain row group is abnormal (different from the total resistance value corresponding to the five thermistors in other row groups), then obtain the resistance and actual temperature of the thermistor corresponding to each temperature measurement point label in the following manner.

[0077] Taking the abnormal total resistance value corresponding to the five thermistors in the first row group as an example. Control the first switch K1 and the second switch K5 to conduct, and other switches to disconnect. At this time, sample and obtain the analog temperature signal of the first thermistor in the first row group. The actual temperature T1 of this thermistor can be calculated through the above formula (1), and the resistance value Rt1 of this thermistor can be calculated through the above formula (2).

[0078] Next, control the first switch K1 and the second switch K6 to conduct, and other switches to disconnect. At this time, sample and obtain the analog temperature signal after combining the first to second thermistors in the first row group. The combined resistance value of the first to second thermistors, that is, Rt1 + Rt2, can be calculated through the above formula (2). Since Rt1 has been obtained, Rt2 can be calculated. Then, according to Rt2 and the above formula (3), the analog temperature signal of the second thermistor can be calculated, and the actual temperature T2 of the second thermistor can be calculated by substituting this analog temperature signal into the above formula (1).

[0079] Next, control the first switch K1 and the second switch K7 to conduct, and turn off other switches. At this time, sample the combined analog temperature signal of the first to the third thermistors in the first row group. Through the above formula (2), the combined resistance value of the first to the third thermistors can be calculated, that is, Rt1 + Rt2 + Rt3. Since Rt1 and Rt2 have been obtained, Rt3 can be calculated. Then, according to Rt3 and the above formula (3), the analog temperature signal of the third thermistor can be calculated, and substituting this analog temperature signal into the above formula (1) to calculate the actual temperature T3 of the third thermistor.

[0080] Next, control the first switch K1 and the second switch K8 to conduct, and turn off other switches. At this time, sample the combined analog temperature signal of the first to the fourth thermistors in the first row group. Through the above formula (2), the combined resistance value of the first to the fourth thermistors can be calculated, that is, Rt1 + Rt2 + Rt3 + Rt4. Since Rt1, Rt2, and Rt3 have been obtained, Rt4 can be calculated. Then, according to Rt4 and the above formula (3), the analog temperature signal of the fourth thermistor can be calculated, and substituting this analog temperature signal into the above formula (1) to calculate the actual temperature T4 of the fourth thermistor.

[0081] Next, control the first switch K1 and the second switch K9 to conduct, and turn off other switches. At this time, sample the combined analog temperature signal of the first to the fifth thermistors in the first row group. Through the above formula (2), the combined resistance value of the first to the fifth thermistors can be calculated, that is, Rt1 + Rt2 + Rt3 + Rt4 + Rt5. Since Rt1, Rt2, Rt3, and Rt4 have been obtained, Rt5 can be calculated. Then, according to Rt5 and the above formula (3), the analog temperature signal of the fifth thermistor can be calculated, and substituting this analog temperature signal into the above formula (1) to calculate the actual temperature T5 of the fifth thermistor.

[0082] Finally, compare the actual temperatures T1, T2, T3, T4, and T5 of the five thermistors. If the actual temperature of a certain thermistor differs significantly from the actual temperatures of other thermistors, it indicates that there is a temperature abnormality in this thermistor, thereby enabling rapid positioning of the abnormal thermistor. If the above abnormal detection of the temperature sensor 113 (thermistor) is performed on the electrode sheet 100 at the ambient temperature, the actual temperatures T1, T2, T3, T4, and T5 of the five thermistors can also be compared with the ambient temperature. If the actual temperature of a certain (some) thermistor differs significantly from the ambient temperature, then this (these) thermistor(s) is / are abnormal thermistors.

[0083] It should be noted that if the resistance values of all row groups are normal, that is, the temperatures are all normal, the actual temperature of the thermistor corresponding to each temperature measurement point label can be obtained in the above manner. That is to say, through the above method, not only can the actual temperature of each thermistor be obtained, but also the abnormal thermistor can be quickly discovered and located by simple comparison, and the electrode sheet 100 with the abnormal thermistor can be found, so as to facilitate the quality inspection of the electrode sheet 100.

[0084] Reference Figure 1 As shown, a second connector 150 is provided between the adapter 120 and the electric field generator 130. The second connector 150 is adapted to connect the electric field generator 130 to the adapter 120. The adapter 120 also has a second cable 125. The second connector 150 includes a second plug 151 provided at one end of the second cable 125 away from the adapter 120 and a second socket 152 provided on the electric field generator 130. The second plug 151 and the second socket 152 are push-button spring connectors, that is, the second connector 150 connects the adapter 120 and the electric field generator 130 in the form of a connector.

[0085] Reference Figure 3 As shown, when there are four electrode sheets 100, the second cable is an 8-core cable. Among them, 4 wire cores are alternating current power lines (a1, a2, a3, and a4) respectively connected to the four first connectors 40, which are used to provide alternating current signals in corresponding directions and polarities. 2 wire cores are the receiving data line RX and the transmitting data line TX electrically connected to the serial communication unit 124 in the adapter 120. The remaining 2 wire cores are the power line and the ground line that provide DC power VCC for at least one temperature sensor 113 of each electrode sheet 100. The controller 123 converts the digital temperature signal sampled by the ADC sampling unit 122 from the corresponding temperature sensor 113 into a digital temperature signal through calculation. The controller 123 controls the serial communication unit 124 to transmit the digital temperature signal to the electric field generator 130 via the second connector 150. That is, after the analog temperature signal collected by the ADC sampling unit 122 in the adapter 120 is converted into a digital temperature signal by the controller 123, it is transmitted to the electric field generator 130 via the serial communication unit 124, the transmitting data line TX connected to the serial communication unit 124, and the second connector 150. It should be noted that the controller 123 can also transmit other information such as the type of the electrode sheet 100 through the serial communication unit 124, which is not limited here.

[0086] In the above embodiments, by connecting multiple electrode elements 112 on the electrode sheet 100 in groups, after the temperature sensors 113 in the same row group are connected in series, they are connected to the DC power supply through the first switch and the voltage-dividing resistor connected in series. After the grounding ends 113B of the temperature sensors 113 in the same column group are connected together, they are connected to the grounding pin GND through the second switch. The total number of the first switch and the second switch does not exceed 9. And by configuring the switching timings of the first switch and the second switch so that the analog temperature signals detected by one or more corresponding combinations among all the temperature sensors 113 of the electrode sheet 100 are sampled respectively, it is possible to achieve a 100% coverage rate of the temperature sensors 113 without increasing the number of wire cores of the cable, avoid excessive load on the electrode sheet 100, and maintain the pasting effect of the electrode sheet 100. For example, Figure 2 When the coverage rate of the temperature sensors 113 on the shown electrode sheet 100 reaches 100%, 22 wire cores are required in the related art, resulting in a very thick first cable 115, very poor flexibility, and very poor pasting effect. However, in this embodiment, it is possible to ensure that the coverage rate of the temperature sensors 113 reaches 100% without increasing the number of wire cores of the first cable 115, so as to realize the comprehensive temperature monitoring of each electrode element 112 in the electrode sheet 100. At the same time, by configuring the switching timings of the first switch and the second switch so that the analog temperature signals detected by one or more corresponding combinations among all the temperature sensors 113 of the electrode sheet 100 are sampled respectively, not only can the actual temperatures of the respective temperature sensors 113, that is, the actual temperatures of the electrode elements 112, be obtained, but also the electrode elements 112 with abnormal temperatures can be quickly located, and different types of electrode sheets 100 can be distinguished. In addition, since the electrode sheet 100 outputs analog temperature signals, it is avoided to provide an ADC sampling unit 122 etc. on the electrode sheet 100, further reducing the overall weight of the electrode sheet 100 and improving the pasting effect of the electrode sheet 100.

[0087] In some embodiments, the number of the electrode elements 112 of the electrode sheet 100 is 9, and they are arranged in a three-row group and a three-column group. The number of the temperature sensors 113 in each row group and each column group is 3. The number of the first switches is equal to the number of the row groups, and the number of the second switches is equal to the number of the column groups. That is, when there are three first switches and three second switches, they are the first switches K1, K2, and K3 and the second switches K4, K5, and K6 respectively. There are three voltage-dividing resistors (R1, R2, and R3) corresponding to the first switches (K1, K2, and K3), there are 6 temperature switching acquisition lines, and there are 12 channels (1-3, 4-6, 7-9, 10-12) in the ADC sampling unit 122 channels. It should be noted that for the electrode sheet 100 with 9 electrode elements 112, compared with Figure 2In the shown example, the difference lies in the different numbers of electrode elements 112 and temperature sensors 113. Correspondingly, when performing temperature sampling, temperature anomaly detection, and determination of the type of electrode sheet 100, the total resistance values of all temperature sensors 113 (thermistors) in each row group are different. The specific sampling process, temperature anomaly detection method, and determination of the type of electrode sheet 100 are basically the same, and will not be elaborated here one by one.

[0088] The present invention also provides a tumor treatment device, including: the aforementioned electrode sheet 100, or the aforementioned tumor electric field treatment system 1000.

[0089] According to the tumor treatment device of the embodiment of the present invention, through the aforementioned electrode sheet 100 or tumor electric field treatment system 1000, it is possible to achieve a 100% coverage rate of temperature sensors 113 without increasing the number of cores of the first cable 115, avoid excessive load on the electrode sheet 100, and maintain the sticking effect of the electrode sheet 100.

[0090] The present invention also provides a method for detecting the temperature of an electrode sheet of a tumor electric field treatment system. The tumor electric field treatment system includes the aforementioned electrode sheet 100, as Figure 4 shown, the method includes:

[0091] S210, configure the switching timings of the first switch and the second switch, so that the analog temperature signals respectively detected for one or more corresponding combinations among all the temperature sensors 113 of the electrode sheet 100 are sampled to obtain digital temperature signals corresponding to each temperature sensor.

[0092] S220, transmit the digital temperature signals to the electric field generator 130 of the tumor electric field treatment system, so that the electric field generator 130 determines the temperature at each electrode element 112 according to the digital temperature signals.

[0093] Optionally, under the condition that the electrode sheet 100 is qualified in testing, after obtaining the digital temperature signals corresponding to each temperature sensor, the method further includes: determining the switching combination relationship between the first switch and the second switch; identifying the type of the corresponding electrode sheet 100 according to the switching combination relationship between the first switch and the second switch, and the analog temperature signals detected for one or more corresponding combinations among all the temperature sensors 113 of the sampled electrode sheet 100.

[0094] Optionally, under the condition of determining the number of temperature sensors 113 in each row group and each column group of the electrode patch 100, after obtaining the digital temperature signals corresponding to each temperature sensor, the method further includes: determining the switching combination relationship between the first switch and the second switch; and determining whether there is an abnormal temperature sensor 113 in the corresponding electrode patch 100 based on the switching combination relationship between the first switch and the second switch and the analog temperature signals detected for one or more corresponding combinations among all the temperature sensors 113 of the electrode patch 100 sampled.

[0095] According to the electrode patch temperature detection method of the tumor electric field therapy system according to an embodiment of the present invention, by configuring the switching timings of the first switch and the second switch, the analog temperature signals detected for one or more corresponding combinations among all the temperature sensors 113 of the electrode patch 100 are respectively sampled to obtain digital temperature signals, and the digital temperature signals are transmitted to the electric field generator 130 of the tumor electric field therapy system 1000, so that the electric field generator 130 can determine the temperature at each electrode element 112 based on the digital temperature signals. Thus, without increasing the number of cores of the first cable 115, a 100% coverage rate of the temperature sensors 113 can be achieved, the excessive load of the electrode patch 100 can be avoided, and the pasting effect of the electrode patch 100 can be maintained.

[0096] The present invention also provides a computer-readable storage medium, on which an electrode patch 100 temperature detection program of the tumor electric field therapy system 1000 is stored. When the electrode patch 100 temperature detection program of the tumor electric field therapy system 1000 is executed by the controller 123, the foregoing electrode patch 100 temperature detection method of the tumor electric field therapy system 1000 is implemented.

[0097] According to the computer-readable storage medium of an embodiment of the present invention, by executing the foregoing electrode patch 100 temperature detection method, a 100% coverage rate of the temperature sensors can be achieved without increasing the number of cores of the first cable 115, the excessive load of the electrode patch 100 can be avoided, and the pasting effect of the electrode patch 100 can be maintained.

[0098] The present invention also provides an adapter 120 of the tumor electric field therapy system 1000, including a memory (not shown), a controller 123, and an electrode patch 100 temperature detection program of the tumor electric field therapy system 1000 stored on the memory (not shown) and operable on the controller 123. When the controller 123 executes the electrode patch 100 temperature detection program of the tumor electric field therapy system 1000, the foregoing electrode patch 100 temperature detection method of the tumor electric field therapy system 1000 is implemented.

[0099] The adapter 120 of the tumor electric field therapy system 1000 according to the embodiments of the present invention can achieve 100% temperature sensor coverage without increasing the number of cores of the first cable 115 by performing the foregoing method for detecting the temperature of the electrode patch 100, avoid excessive load on the electrode patch 100, and maintain the sticking effect of the electrode patch 100.

[0100] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including the controller 123, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion (electronic device) having one or more wirings, a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or otherwise processing as appropriate, and then storing it in a computer memory.

[0101] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0102] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0103] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated in this embodiment. Thus, the features defined with terms such as "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that at least one such feature is included in this embodiment. In the description of the present invention, the meaning of the word "plurality" is at least two or more, such as two, three, four, etc., unless otherwise specifically defined in the embodiments.

[0104] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "mounted", "connected", "coupled", and "fixed", etc. appearing in the embodiments shall be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or integrated. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements, or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific implementation circumstances.

[0105] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A tumor electric field therapy system, characterized in that, Comprising: At least a pair of electrode plates, each of the electrode plates comprising a plurality of electrode elements and a plurality of temperature sensors, each of the electrode elements being capable of applying an alternating electric field, each of the temperature sensors being arranged corresponding to one electrode element to detect the temperature at the corresponding electrode element, each of the temperature sensors having a signal terminal and a ground terminal, the plurality of temperature sensors being configured in terms of circuit connection as a plurality of row groups and a plurality of column groups, after the corresponding temperature sensors in each row group are connected in series, they are connected to a DC power supply through a first switch and a voltage-dividing resistor connected in series, after the ground terminals of the corresponding temperature sensors in each column group are connected together, they are connected to a ground pin through a second switch; A controller for configuring the switching timings of the first switch and the second switch to sample the analog temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate.

2. The tumor electric field therapy system according to claim 1, wherein It further comprises an ADC sampling unit, the controller is connected to the ADC sampling unit, the controller is used for configuring the switching timings of the first switch and the second switch, so that the ADC sampling unit samples the analog temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate, and performs arithmetic conversion on the analog temperature signals to obtain the digital temperature signals of each temperature sensor.

3. The tumor electric field therapy system according to claim 1, characterized in that, The controller is further used for identifying the type of the corresponding electrode plate according to the temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate sampled by configuring the switching combination relationship of the first switch and the second switch.

4. The tumor electro-field therapy system according to claim 1, wherein The controller is further used for judging whether there are abnormal temperature sensors in the corresponding electrode plate according to the temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate sampled by configuring the switching combination relationship of the first switch and the second switch.

5. The tumor electro-field therapy system according to claim 1, wherein The electrode plate further comprises a plurality of diodes, each of the diodes having an anode and a cathode, each of the diodes being arranged corresponding to one temperature sensor, wherein, after the ground terminal of the corresponding temperature sensor in each column group is connected to the anode of the corresponding diode, they are connected together through the cathode of the corresponding diode and then connected to the corresponding second switch.

6. The tumor electric field therapy system according to claim 1, characterized in that, The plurality of electrode elements are configured in terms of circuit connection as a plurality of row groups and a plurality of column groups, and the number of the electrode elements in each row group is the same as that of the temperature sensors, and the number of the electrode elements in each column group is the same as that of the temperature sensors.

7. The tumor electric field therapy system according to any one of claims 1-6, characterized in that There are four of the electrode plates.

8. A tumor treatment device, characterized in that, Comprising: The tumor electric field therapy system according to any one of claims 1-7.

9. A method for detecting the temperature of an electrode sheet, characterized in that, Applied to the tumor electric field therapy system according to any one of claims 1-7, the method comprises: S210: Configure the switching timings of the first switch and the second switch to sample the analog temperature signals detected by one or more corresponding combinations among all the temperature sensors of the electrode plate, and obtain the digital temperature signals corresponding to each temperature sensor; S220: Determine the temperature at each electrode element according to the digital temperature signals.

10. The method for detecting the temperature of the electrode sheet according to claim 9, characterized in that, Under the condition that the electrode sheet is qualified in the test, after obtaining the digital temperature signal in step S210, the method further includes: Determine the switching combination relationship between the first switch and the second switch; Identify the type of the corresponding electrode sheet according to the switching combination relationship between the first switch and the second switch and the temperature signal detected by one or more corresponding combinations among all the temperature sensors of the sampled electrode sheet.

11. The method for detecting the temperature of the electrode sheet according to claim 9, characterized in that, Under the condition of determining the number of temperature sensors in each row group and each column group of the electrode sheet, after obtaining the digital temperature signal in step S210, the method further includes: Determine the switching combination relationship between the first switch and the second switch; Judge whether there is an abnormal temperature sensor in the corresponding electrode sheet according to the switching combination relationship between the first switch and the second switch and the temperature signal detected by each of the sampled temperature sensors.

12. A computer-readable storage medium, characterized in that, It stores an electrode sheet temperature detection program, and when the electrode sheet temperature detection program is executed by a controller, the electrode sheet temperature detection method according to any one of claims 9-11 is implemented.

13. An adapter for a tumor electrotherapy system, characterized in that, It includes a memory, a controller, and an electrode sheet temperature detection program stored on the memory and operable on the controller. When the controller executes the electrode sheet temperature detection program, the electrode sheet temperature detection method according to any one of claims 9-11 is implemented.

14. An electric field generator for a tumor electrotherapy system, characterized in that, It includes a memory, a controller, and an electrode sheet temperature detection program stored on the memory and operable on the controller. When the controller executes the electrode sheet temperature detection program, the electrode sheet temperature detection method according to any one of claims 9-11 is implemented.

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