Tumor electric field therapy system, electrode pads and methods

Abstract

This application provides a tumor electric field therapy system, electrode pads, and method. The system includes: at least one pair of electrode pads, each electrode pad including multiple electrode units and multiple temperature detection units, each temperature detection unit corresponding to one electrode unit. The multiple electrode units of each electrode pad are configured in multiple row groups and multiple column groups in terms of circuit connection. The electrode units in each row group are connected in parallel. The temperature detection units in each row group are connected in series. The temperature detection units in each column group are connected to a ground pin through a control switch. The parallel connection of the electrode units in each row group and the series connection of the temperature detection units in each row group are connected to a bidirectional switching unit through a dual-purpose signal line. When the dual-purpose signal line is connected to a temperature sampling point, the on / off state of the control switch is configured to allow the analog temperature signal detected by one or more combinations of corresponding temperature sensors to be sampled based on the temperature sampling point. When the dual-purpose signal line is connected to an alternating power supply line, the electrode units in each row group are applied an alternating electrical signal based on the alternating power supply line. In this way, multiple electrode units are controlled in sections using fewer conductive traces.

Description

Technical Field

[0001] This application relates to tumor electric field therapy technology, and more particularly to a tumor electric field therapy system, electrode pads, and method. Background Technology

[0002] Tumor electric field therapy is a treatment that uses low-intensity, medium-to-high-frequency alternating electric fields to prevent the formation of spindle microtubules during mitosis in certain tumor cells, inhibit the separation of intracellular organelles during cell division, and induce apoptosis in mitotic cells, thereby achieving the therapeutic effect on tumors.

[0003] Compared to traditional cancer treatments, tumor electric field (TEF) therapy has an innovative mechanism of action. Certain physiological characteristics of tumor cells, such as their geometry and high-frequency mitosis, make them susceptible to TEF. TEF therapy disrupts the normal aggregation of tubulin by applying directional forces to intracellular polar particles (such as macromolecules and organelles). These processes can lead to physical damage to the cell membrane and apoptosis. During the telophase of mitosis, the morphology of the cleavage groove leads to an uneven distribution of the electric field around it. Under the influence of TEF, the electric field strength at the cleavage groove is significantly enhanced, causing charged substances in the cell to migrate towards the cleavage groove, interfering with or even destroying cell structure formation, ultimately leading to cell division failure and apoptosis.

[0004] In related technologies, tumor electric field therapy systems use an electric field application device to transmit alternating electrical signals for tumor electric field therapy to electrode pads. These pads then apply an alternating electric field to the patient's tumor site for tumor electric field therapy. When the tumor therapeutic electric field is applied to the patient's body, heat accumulates at the application site, causing a corresponding increase in temperature. Therefore, it is necessary to monitor the temperature at the application site. If the temperature becomes too high, the electric field intensity needs to be adjusted promptly to reduce the risk of burns to the patient's skin.

[0005] Tumor electric field therapy systems include at least one pair of electrode pads, each containing multiple electrode units. Even when the same alternating electrical signal is applied to each electrode unit, the heat generated on each unit will vary depending on its location. This means the temperature of each electrode unit across the entire electrode pad will not be completely uniform. Consequently, some electrode units may exceed a preset temperature while others remain at a normal temperature. To improve the effectiveness of tumor electric field therapy, individual control of overheating electrode units is necessary. However, for electrode pads in related technologies, individual control of electrode units requires a conductive trace for each electrode unit within the electrode pad's substrate. This increases the number of conductive traces within the substrate, making the electrode pad less flexible, and also thickens the cables electrically connected to the electrode pad, increasing its overall weight and hindering proper electrode application. Summary of the Invention

[0006] This application aims to at least partially address one of the technical problems in the related art. Therefore, the first objective of this application is to propose a tumor electric field therapy system that can control multiple electrode units in sections using fewer conductive traces, which not only improves the efficacy of tumor electric field therapy but also facilitates electrode application.

[0007] The second objective of this application is to provide an electrode sheet.

[0008] The third objective of this application is to provide a method for detecting the temperature of an electrode sheet.

[0009] The fourth objective of this application is to provide a method for quality inspection of electrode sheets.

[0010] The fifth objective of this application is to provide a quality inspection system for electrode sheets.

[0011] To achieve the above objectives, a first aspect of this application provides a tumor electric field therapy system, comprising: at least one pair of electrode pads, each electrode pad including multiple electrode units and multiple temperature detection units, each electrode unit capable of applying an alternating electrical signal, and each temperature detection unit corresponding to one electrode unit to detect the temperature at the corresponding electrode unit; wherein the multiple electrode units are configured in circuit connection as multiple row groups and multiple column groups, the electrode units in each row group are connected in parallel to simultaneously apply an alternating electrical signal to each electrode unit connected in parallel in each row group; the temperature detection units in each row group are connected in series; and the temperature detection units in each column group are connected together through a control switch. The electrodes in each row group are connected in parallel and the temperature detection units in each row group are connected in series. They are all connected to a bidirectional switching unit via a dual-purpose signal line. The bidirectional switching unit is configured to switch the dual-purpose signal line to either a temperature sampling point or an alternating power supply line. When the dual-purpose signal line is connected to the temperature sampling point, the switching state of the control switch is configured so that the analog temperature signal detected by one or more combined temperature detection units is sampled based on the temperature sampling point. When the dual-purpose signal line is connected to the alternating power supply line, at least one electrode unit in the row group is subjected to the alternating electrical signal based on the alternating power supply line.

[0012] According to the tumor electric field therapy system of this application embodiment, for each electrode sheet, multiple electrode units are divided into multiple row groups and multiple column groups in terms of circuit connection. The grounding terminals of the temperature detection units corresponding to each electrode unit in each column group are connected to the grounding pin through a control switch. The electrode units in each row group are connected in parallel to simultaneously apply alternating electrical signals to each electrode unit connected in parallel in each row group. The temperature detection units in each row group are connected in series. The parallel connection of each electrode unit in each row group and the series connection of each temperature detection unit in each row group are connected to a bidirectional switching unit through a dual-purpose signal line. At the same time, the bidirectional switching unit is set to switch the dual-purpose signal line to be connected to the temperature sampling point or the alternating power line. When the dual-purpose signal line is connected to the temperature sampling point, the on / off state of the control switch is configured so that the analog temperature signal detected by one or more combinations of corresponding temperature detection units is sampled based on the temperature sampling point. When the dual-purpose signal line is connected to the alternating power line, the electrode units of each row group are applied with alternating electrical signals based on the alternating power line. In this way, temperature sampling and alternating electrical signal application can be achieved through dual-purpose signal lines. Not only is no new AC signal line added, but the original AC signal line is also eliminated. Thus, multiple electrode units can be controlled in zones using fewer conductive traces. Zone control includes applying alternating electrical signals to the electrode units of each row group separately, and acquiring the analog temperature signals detected by one or more temperature detection units corresponding to each row group. This not only achieves accurate and comprehensive temperature detection of all electrode units, but also facilitates the application of electrode sheets.

[0013] Furthermore, each electrode sheet also includes multiple rectification switching modules, each rectification switching module corresponding to one of the multiple row groups of the electrode unit. Each temperature detection unit in each row group is connected in series and then connected to the first terminal of the corresponding rectification switching module. Each electrode unit in each row group is connected in parallel and then connected to the second terminal of the corresponding rectification switching module. The third terminal of the rectification switching module corresponding to each row group is connected to the dual-purpose signal line corresponding to each row group.

[0014] Furthermore, the bidirectional switching unit includes a plurality of bidirectional switching switches that correspond one-to-one with the plurality of rows of the electrode unit, wherein the first end of each bidirectional switching switch is connected to the temperature sampling point of the corresponding row; the second end of each bidirectional switching switch is simultaneously connected to the alternating power supply line; and the third end of each bidirectional switching switch is connected to the dual-purpose signal line corresponding to the corresponding row.

[0015] Furthermore, each of the rectifier switching modules includes an electromagnetic control switch, and the electromagnetic control switch corresponding to each row group is linked with the bidirectional switching switch corresponding to that row group; wherein, when the bidirectional switching switch corresponding to each row group switches to a state where its third terminal is connected to its first terminal, the electromagnetic control switch corresponding to the row group switches to a state where the third terminal of the corresponding rectifier switching module is connected to its first terminal, so that the analog temperature signal detected by one or more temperature detection units corresponding to the configuration of the control switch is sampled respectively; when the bidirectional switching switch corresponding to each row group switches to a state where its third terminal is connected to its second terminal, the electromagnetic control switch corresponding to the row group switches to a state where the third terminal of the corresponding rectifier switching module is connected to its second terminal, so that the electrode unit of each row group is simultaneously applied with the alternating electrical signal based on the alternating power line.

[0016] Furthermore, each of the rectifier switching modules also includes a rectifier bridge and a Zener diode. The first end of the rectifier bridge is connected to the dual-purpose signal line corresponding to the corresponding row group electrode unit and the third end of the electromagnetic control switch. A Zener diode is connected in series between the second end and the fourth end of the rectifier bridge. The third end of the rectifier bridge is connected to the ground pin. The anode of the Zener diode is connected to the fourth end of the rectifier bridge, and the cathode of the Zener diode is connected to the second end of the rectifier bridge. Each electromagnetic control switch includes a first end, a second end, and a third end. The first end of the electromagnetic control switch constitutes the first end of the rectifier switching module, the second end of the electromagnetic control switch constitutes the second end of the rectifier switching module, and the third end of the electromagnetic control switch, after being connected to the first end of the rectifier bridge, constitutes the third end of the rectifier switching module.

[0017] Furthermore, each of the temperature detection units also includes a temperature sensor and a diode connected in series with the temperature sensor. The anode of each diode is connected to the ground terminal of the corresponding temperature sensor, and the cathodes of the diodes corresponding to each column are connected together and then connected to the ground pin through a corresponding control switch.

[0018] Furthermore, each of the temperature sampling points is connected to a DC power supply via a corresponding voltage divider resistor.

[0019] Furthermore, it also includes an adapter, wherein the control switch, the bidirectional switching unit, and the voltage divider resistor are respectively disposed in the adapter.

[0020] Furthermore, the adapter includes a first controller and an ADC unit, the ADC unit being connected to each of the temperature sampling points to sample the analog temperature signal through each temperature sampling point, and the first controller being connected to the ADC unit to determine the temperature at the corresponding electrode unit based on the digital temperature signal output by the ADC unit.

[0021] Furthermore, the first controller is also configured to configure the on / off state of the control switch.

[0022] Furthermore, the first controller is also configured to configure the switching state of the bidirectional switching switch in the bidirectional switching unit.

[0023] Furthermore, it also includes an electric field generator configured to output the alternating electrical signal through the alternating power line.

[0024] Furthermore, the electric field generator includes a second controller and an AC signal generator. The second controller is connected to the AC signal generator and is configured to control the AC signal generator to adjust the intensity of the alternating electrical signal output by the alternating power line.

[0025] Furthermore, the electric field generator is also configured to acquire the temperature at each electrode unit and control the AC signal generator based on the temperature at each electrode unit.

[0026] Furthermore, the electric field generator also includes a power supply switch, which is disposed between the AC signal generator and the bidirectional switching unit. Under the configuration of the second controller, the power supply switch controls whether the AC signal generator outputs the alternating electrical signal through the alternating power supply line.

[0027] Furthermore, the second controller is also configured to configure the on / off state of the control switch.

[0028] Furthermore, the second controller is also configured to configure the switching state of the bidirectional switching switch in the bidirectional switching unit.

[0029] To achieve the above objectives, a second aspect of this application provides an electrode sheet applied to a tumor electric field therapy system. The tumor electric field therapy system includes a bidirectional switching unit. The electrode sheet includes: a substrate; multiple electrode units and multiple temperature detection units disposed on the substrate; each electrode unit can be subjected to an alternating electrical signal; each temperature detection unit is disposed corresponding to one electrode unit to detect the temperature at the corresponding electrode unit; wherein the multiple electrode units are configured in circuit connections as multiple row groups and multiple column groups, with each electrode unit in each row group connected in parallel to simultaneously apply an alternating electrical signal to each electrode unit connected in parallel within each row group; and each temperature detection unit in each row group... The units are connected in series; each temperature detection unit in each column group is connected to the ground pin through a control switch; and each electrode unit in each row group is connected in parallel and each temperature detection unit in each row group is connected to the bidirectional switching unit through a dual-purpose signal line; when the dual-purpose signal line is connected to the temperature sampling point, the on / off state of the control switch is configured so that the analog temperature signal detected by one or more combined temperature detection units is sampled based on the temperature sampling point; when the dual-purpose signal line is connected to the alternating power supply line, at least one electrode unit in the row group is subjected to the alternating electrical signal based on the alternating power supply line.

[0030] To achieve the above objectives, a third aspect of this application provides an electrode temperature detection method applied to the aforementioned tumor electric field therapy system. The method includes: controlling the bidirectional switching unit to connect the dual-purpose signal line corresponding to any row group in the corresponding electrode to the corresponding temperature sampling point; and controlling the control switch corresponding to each column group to sample the analog temperature signal of the corresponding electrode unit based on the corresponding temperature sampling point.

[0031] To achieve the above objectives, a fourth aspect of this application provides a method for quality inspection of an electrode sheet, applied to an electrode sheet quality inspection system. The electrode sheet quality inspection system includes the aforementioned tumor electric field therapy system and a host computer, wherein the host computer and the tumor electric field therapy system are communicatively connected. The method includes: acquiring simulated temperature signals detected by each temperature detection unit in the electrode sheet; determining the state of each temperature detection unit based on the simulated temperature signals detected by each temperature detection unit, and assigning a corresponding code to determine a test code array for the electrode sheet; comparing the test code array with a standard code array to determine whether the electrode sheet is qualified, wherein the standard code includes at least a first code among a first code and a second code, the first code indicating that the temperature detection unit is in a normal state, and the second code indicating that the temperature detection unit is in an open circuit state or an unset state.

[0032] Furthermore, the test code array includes at least one of a first code, a second code, and a third code, wherein the third code is used to indicate that the temperature detection unit is in a short-circuit state.

[0033] Furthermore, the simulated temperature signal is represented by a voltage value. The test code array for the electrode is determined based on the simulated temperature signal detected by each temperature detection unit, including: determining the voltage range in which the voltage value is located; determining the code corresponding to the corresponding temperature detection unit based on the voltage range in which the voltage value is located, wherein different voltage ranges correspond to different codes; and generating a test code array for the corresponding electrode based on the code corresponding to each temperature detection unit.

[0034] Furthermore, before comparing the test encoding array with the standard encoding array, the method further includes: controlling the adapter to operate when a qualified electrode is connected to the adapter of the tumor electric field therapy system, and determining the standard encoding array based on the simulated temperature signal detected by each of the temperature detection units.

[0035] To achieve the above objectives, a fifth aspect of this application provides an electrode quality inspection system, including a tumor electric field therapy system, a host computer, an alarm, and a display. The host computer is communicatively connected to the tumor electric field therapy system, the alarm is communicatively connected to the host computer, and the display is communicatively connected to the host computer. The electrode quality inspection system is used to execute the aforementioned electrode quality inspection method.

[0036] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0037] Figure 1 This is a schematic block diagram of a tumor electric field therapy system according to an embodiment of this application;

[0038] Figure 2 This is a schematic block diagram of a tumor electric field therapy system according to another embodiment of this application;

[0039] Figure 3 for Figure 1 or Figure 2 A schematic diagram of a section structure of the electrode pads in the tumor electric field therapy system shown in the figure;

[0040] Figure 4 for Figure 1 or Figure 2A schematic diagram of the circuit connection between an electrode plate and an adapter in the tumor electric field therapy system shown in the figure.

[0041] Figure 5 This is a schematic diagram of the structure of an electrode unit of the electrode sheet in the tumor electric field therapy system of this application;

[0042] Figure 6 for Figure 1 or Figure 2 The diagram shows a circuit connection between an electrode plate of the tumor electric field therapy system and an adapter and an electric field generator.

[0043] Figure 7 for Figure 1 or Figure 2 A schematic block diagram of the internal structure of the adapter of the tumor electric field therapy system shown;

[0044] Figure 8 for Figure 1 or Figure 2 A schematic block diagram of the internal structure of the electric field generator in the tumor electric field therapy system shown.

[0045] Figure 9 An electrode sheet of a tumor electric field therapy system according to another embodiment of this application and Figure 1 or Figure 2 The circuit connection diagram of the adapter shown is shown;

[0046] Figure 10 This is a schematic block diagram of a tumor electric field therapy system according to another embodiment of this application;

[0047] Figure 11 This is a schematic block diagram of a tumor electric field therapy system according to another embodiment of this application;

[0048] Figure 12 This is a schematic block diagram of a tumor electric field therapy system according to another embodiment of this application;

[0049] Figure 13 for Figure 10 or Figure 11 or Figure 12 A schematic diagram of the circuit connection between an electrode plate and an adapter in the tumor electric field therapy system shown in the figure.

[0050] Figure 14 for Figure 13 A schematic block diagram of the internal structure of the adapter shown;

[0051] Figure 15 for Figure 10 or Figure 11 or Figure 12 The diagram shows the connection between one electrode of the tumor electric field therapy system and another circuit of the adapter.

[0052] Figure 16 and Figure 15 Similarly, it is Figure 10 or Figure 11 or Figure 12 The diagram shows the connection between one electrode of the tumor electric field therapy system and another circuit of the adapter.

[0053] Figure 17 for Figure 15 or Figure 16 A schematic block diagram of the internal structure of the adapter shown;

[0054] Figure 18 An electrode sheet of a tumor electric field therapy system according to another embodiment of this application and Figure 13 or Figure 14 The circuit connection diagram of the adapter shown is shown;

[0055] Figure 19 This is a schematic diagram of the circuit connection between an electrode and an adapter in a tumor electric field therapy system according to another embodiment of this application;

[0056] Figure 20 for Figure 19 A schematic block diagram of the internal structure of the adapter shown;

[0057] Figure 21 This is a schematic diagram of the circuit connection between an electrode and an adapter in a tumor electric field therapy system according to another embodiment of this application;

[0058] Figure 22 for Figure 21 A schematic block diagram of the internal structure of the adapter shown;

[0059] Figure 23 This is a schematic block diagram of a tumor electric field therapy system according to another embodiment of this application;

[0060] Figure 24 for Figure 23 A schematic diagram of the circuit connection between an electrode plate and an adapter in the tumor electric field therapy system shown in the figure.

[0061] Figure 25 and Figure 24 Similarly, also for Figure 23 The diagram shows the connection between one electrode of the tumor electric field therapy system and another circuit of the adapter.

[0062] Figure 26 for Figure 25 A schematic block diagram of the internal structure of the adapter shown;

[0063] Figure 27 This is a schematic flowchart of an electrode temperature detection method according to an embodiment of this application;

[0064] Figure 28 This is a flowchart illustrating an embodiment of the electrode sheet qualification testing method of this application. Detailed Implementation

[0065] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0066] Figure 1 The diagram shown is a schematic representation of a tumor electric field therapy system 100 according to an embodiment of this application. Figure 1 As shown, the tumor electric field therapy system 100 includes: at least one pair of electrode pads 13, an adapter 20 connected to the at least one pair of electrode pads 13, and an electric field generator 30 connected to the adapter 20. The at least one pair of electrode pads 13 can be disposed in pairs on the patient's body surface, such as... Figure 1 The device comprises four electrode pads 13, with each pair of electrode pads 13 positioned on the patient's body surface. An electric field generator 30 supplies power to at least one pair of electrode pads 13, causing them to generate an alternating electric field for tumor treatment. An adapter 20 is electrically connected between the at least one pair of electrode pads 13 and the electric field generator 30, for transmitting the alternating electrical signal generated by the electric field generator 30 to the at least one pair of electrode pads 13. In other words, the electric field generator 30 generates an alternating electrical signal, which is transmitted through the adapter 20 to each electrode pad 13, thereby generating an alternating electric field for tumor treatment between the same pair of electrode pads 13, thus applying the alternating electric field to the patient's tumor site for tumor therapy.

[0067] like Figure 1 As shown, in this embodiment, there are four electrode pads 13, each electrode pad 13 including the same number of electrode units 33, each electrode unit 33 being electrically connected to the adapter 20, and each electrode pad 13 having 20 electrode units 33. In other embodiments, the tumor electric field therapy system 100 may have more or fewer electrode pads 13; in other embodiments, each pair of electrode pads 13 has the same number of electrode units 33, and different pairs of electrode pads 13 may have different numbers of electrode units 33; in other embodiments, the number of electrode units 33 on each electrode pad 13 may be 9, 12, 13, 19, etc.

[0068] In this embodiment, the connection between two electrode units 33 can be called a connecting strip, which allows adjustment of the spacing between the electrode units 33. If an electrode unit 33 is connected to another electrode unit 33 only through a connecting strip, then that electrode unit 33 is an electrode unit 33 with a free end, for example... Figure 1Each electrode pad 13 shown has nine electrode units 33 with free ends. The space surrounding the electrode units 33 with free ends is an open space, meaning that the electrode units 33 with free ends have a certain degree of freedom and can move freely within the open space. For example, the connecting strip can stretch or bend to a certain extent, allowing the electrode units 33 to move in various directions. The reason why some electrode units 33 are set to be in the form of free ends in this embodiment is that after the electrode pad is applied to the human body, the electric field of each electrode unit 33 is inconsistent due to the skin folds and corresponding impedance changes, resulting in inconsistent temperatures among the electrode units 33. Moreover, the electrode units 33 located on the periphery of the electrode pad 13 heat up faster. Therefore, when some electrode units 33 in the electrode pad 13 are in the form of free ends, the heat dissipation space of the peripheral electrode units 33 can be increased by adjusting the electrode units 33 with free ends, thereby accelerating heat dissipation. In addition, the application position of the electrode units 33 with free ends on the human body can be adjusted to flexibly apply the electrode units 33 with free ends to the human body according to actual needs.

[0069] Figure 2 The diagram shown is a schematic representation of a tumor electric field therapy system 100' according to another embodiment of this application. Figure 2 As shown, its main concept and Figure 1 The tumor electric field therapy system 100 shown is the same, except that: Figure 2 The electrode units 33' in the electrode pad 13' of the tumor electric field therapy system 100' shown are connected in different ways. The connection methods of the 10 electrode units 33' on the left and the 10 electrode units 33' on the right of the electrode pad 13' are symmetrical. The 10 electrode units 33' on the left of the electrode pad 13' have 4 electrode units 33' at the free end, and the 10 electrode units 33' on the right of the electrode pad 13' have 4 electrode units 33' at the free end.

[0070] Figure 4 for Figure 1 or Figure 2 The diagram shows the circuit connection between the electrode 13 and the adapter 20 in the tumor electric field therapy system 100. Figure 5 A schematic diagram of the electrode unit 33 is shown. It is worth noting that: Figure 4 The arrangement of electrode units 33 shown is to more clearly illustrate the electrical connection between an electrode piece 13 and the adapter 20. Figure 4 The arrangement of electrode units 33 shown does not represent their spatial arrangement. For example... Figure 4As shown, multiple electrode units 33 in an electrode sheet 13 are configured into multiple row groups and multiple column groups. Each row group is provided with a rectifier switching module 16 having a first terminal, a second terminal and a third terminal. The first terminal of the rectifier switching module 16 is connected to each temperature detection unit 34 connected in series in the corresponding row group. The second terminal of the rectifier switching module 16 is connected to each electrode unit 33 in the corresponding row group. The third terminal of the rectifier switching module 16 is connected to the corresponding bidirectional switching switch 55 through a dual-purpose signal line 19. The third terminal of the rectifier switching module 16 can be connected to its first terminal so that the dual-purpose signal line 19 connected thereto can be electrically connected to each temperature detection unit 34 connected in series in the corresponding row group. The temperature detection signal obtained by the combination of each temperature detection unit 34 in the corresponding row group can be acquired through the dual-purpose signal line 19. The third terminal of the rectifier switching module 16 can also be connected to its second terminal so that the dual-purpose signal line 19 connected thereto can be electrically connected to each electrode unit 33 connected in parallel in the corresponding row group. The AC signal can be transmitted to each electrode unit 33 in the corresponding row group through the dual-purpose signal line 19. The third terminal of the rectifier switching module 16 can cyclically switch between being connected to its first and second terminals, thereby allowing the dual-purpose signal line 19 electrically connected to it to switch between being electrically connected to each series-connected temperature detection unit 34 in the corresponding row group and being electrically connected to each electrode unit 33 in the corresponding row group. This allows the dual-purpose signal line 19 to cyclically switch between acquiring the combined temperature detection signal from the temperature detection units 34 in the corresponding row group and transmitting AC signals to each electrode unit 33 in the corresponding row group. Combined with... Figure 4 , Figure 5 as well as Figure 1 or Figure 2 As shown, the electrode sheet 13 includes: a substrate 31, multiple electrode units 33 electrically connected to the substrate 31 at intervals, multiple temperature detection units 34, multiple rectification switching modules 16, and a first cable 15 electrically connected to the substrate 31. The substrate 31 can be a flexible circuit board. The substrate 31 is embedded with multiple conductive traces, including multiple grounding lines 18, multiple dual-purpose signal lines 19, and a rectifier ground line (unlabeled) that grounds all multiple rectification switching modules 16. The first cable 15 has multi-core wires (not shown), each of which is electrically connected to the multiple grounding lines 18, multiple dual-purpose signal lines 19, and rectifier ground line (unlabeled) of the substrate 31. In this embodiment, the total number of grounding lines 18, dual-purpose signal lines 19, and rectifier ground line (unlabeled) embedded in the substrate 31 does not exceed 10, therefore the number of wires in the first cable 15 does not exceed 10.

[0071] Multiple electrode units 33 are configured into multiple row groups and multiple column groups. In this embodiment, each electrode sheet 13 has 20 electrode units 33. The 20 electrode units 33 are arranged in the order of 1 to 20 in the circuit connection. Electrode units 33-1 to 33-20 are divided into four row groups and five column groups, that is, the 20 electrode units 33 are arranged in four rows and five columns in the circuit connection. Each electrode unit 33 corresponds to a temperature detection unit 34. Each temperature detection unit 34 has a signal terminal 34-1 and a ground terminal 34-2. Both the electrode units 33 and the temperature detection units 34 are soldered to the substrate 31. Since multiple temperature detection units 34 are arranged one-to-one with multiple electrode units 33, the multiple temperature detection units 34 are also arranged in four rows and five columns in the circuit connection. It should be noted that the arrangement here is to more clearly show the electrical connection between the electrode sheet 13 and the adapter 20, and does not represent the spatial arrangement of the electrode units 33. The spatial structure may be as follows. Figure 3 The structure shown is roughly array-like, but it can also be other structures, such as petal-shaped or scattering-shaped, and can be regular or irregular. Electrode unit 33 is configured to apply alternating electrical signals to the patient's tumor site. Temperature detection unit 34 is configured to detect the temperature of the patient's body surface in contact with electrode pad 13, i.e., the temperature at the corresponding electrode unit 33, and output a temperature detection signal to adapter 20. In this embodiment, the multi-purpose signal line 19 of substrate 31 is respectively configured to correspond one-to-one with multiple rows of electrode units 33, and is configured to transmit the alternating electrical signal generated by electric field generator 30 to each electrode unit 33 in the corresponding row group. That is, electrode units 33 located in the same row group are connected in parallel to the same conductive trace and then short-circuited through a rectifier switching module 16 corresponding to that row group and the same multi-purpose signal line 19 of substrate 31. The multi-purpose signal line 19 of substrate 31 is electrically connected to the first cable 15, and then electrically connected to the electric field generator 30 via adapter 20. Furthermore, the dual-purpose signal line 19 of the substrate 31 receives the alternating electrical signal generated by the electric field generator 30 through the first cable 15 and the adapter 20.

[0072] Multiple grounding lines 18 are respectively configured to correspond one-to-one with multiple columns of electrode units 33, and are used to sequentially short-circuit and ground each temperature detection unit 34 in each column. That is, the grounding terminal 34-2 of multiple temperature detection units 34 located in the same column is short-circuited to the same grounding line 18 of the substrate 31, and the grounding terminal 34-2 of temperature detection units 34 located in different columns is connected in parallel to different grounding lines 18 of the substrate 31. During the temperature detection period, only one of the multiple grounding lines 18 is conducting at any given time, and the rest are disconnected. The temperature detection unit 34 includes a temperature sensor 35 with a signal terminal 35-1 and a grounding terminal 35-2 at its two ends. The signal terminal 35-1 of the temperature sensor 35 can be used as the signal terminal 34-1 of the temperature detection unit 34, and the grounding terminal 35-2 of the temperature sensor 35 can be used as the grounding terminal 34-2 of the temperature detection unit 34. Multiple temperature sensors 35 located in the same row group are connected in series. After being connected to the first terminal 1 of the corresponding rectifier switching module 16 at a signal terminal 35-1 at the end of each row group, they are connected to the DC power supply VCC through a series-connected bidirectional switching switch 55 and voltage divider resistor 53. The ground terminal 35-2 of each temperature sensor 35 in each column group is connected to the corresponding diode 36, and then connected to the control switch 54 through one of the multiple grounding lines 18, and finally connected to the ground pin GND. The tumor electric field therapy system 100 configures the switching sequence of the bidirectional switching switch 55, the rectifier switching module 16 and the control switch 54 so that the analog temperature signals detected by one or more combinations of the temperature sensors 35 in the electrode sheet 13 are sampled or an AC signal is applied to the corresponding electrode unit 33 in the electrode sheet 13.

[0073] like Figure 4As shown, the bidirectional switching unit (unlabeled) includes a bidirectional switching switch 55 corresponding to each row group. The first end of each bidirectional switching switch 55 (such as acquisition end 1) is connected to the detection channel of the corresponding ADC unit 52 as the temperature sampling point of the corresponding row group. The second end of each bidirectional switching switch 55 (such as input end 2) is also connected to the alternating power supply line 57. The third end of each bidirectional switching switch 55 is connected to the dual-purpose signal line 19 corresponding to the corresponding row group. All temperature sensors 35 located in the same row are connected in series and then connected to a dual-purpose signal line 19 (such as one of dual-purpose signal lines 19-1, 19-2, 19-3, and 19-4) through a rectifier switching module 16 corresponding to that row group. This dual-purpose signal line 19 is also connected to the DC power supply VCC. The grounding terminals 35-2 of all temperature sensors 35 located in the same row are connected to the grounding pin GND via corresponding grounding lines 18 (such as grounding lines 18-1, 18-2, 18-3, 18-4, and 18-5). The grounding terminals 35-2 of all temperature sensors 35 located in the same column are connected to the same grounding line 18 (such as grounding lines 18-1, 18-2, 18-4, and 18-5). 3, 18-4, 18-5 (one of them), each row of temperature sensors 35 is connected in series with a bidirectional switch 55 (such as bidirectional switch 55-1, 55-2, 55-3 or 55-4) and a voltage divider resistor 53 (such as voltage divider resistor R1, R2, R3 or R4) in series at the DC power supply VCC terminal, and the voltage divider resistor 53 (such as voltage divider resistor R1, R2, R3 or R4) is closer to the DC power supply VCC terminal than the bidirectional switch 55 (such as bidirectional switch 55-1, 55-2, 55-3 or 55-4). Each grounding wire 18 is connected in series with a control switch 54 (such as control switch 54-1, 54-2, 54-3, 54-4 or 54-5).

[0074] In this embodiment, with a temperature detection unit 34 configured in each electrode unit 33 for temperature detection, the above-described circuit design reduces the number of wires in the first cable 15, preventing the cable from becoming thicker and harder, thus increasing the difficulty of cable fixation; simultaneously, it avoids the increased number of wires in the first cable 15 affecting the adhesion between the electrode pad 13 and the corresponding body surface of the patient's tumor site. The substrate 31 has a total of 10 embedded grounding wires 18, dual-purpose signal lines 19, and rectified ground wires (unlabeled). Specifically, in this embodiment, the substrate 31 has 5 embedded grounding wires 18, 4 dual-purpose signal lines 19, and 1 rectified ground wire (unlabeled). The number of grounding wires 18 is related to the number of column groups N of the electrode unit 33, which is equal to the number of column groups of the electrode unit 33, where N is a positive integer. The number of dual-purpose signal lines 19 is related to the number of row groups M of the electrode unit 33, which is equal to the number of row groups of the electrode unit 33, where M is a positive integer. The number L of the conductive traces electrically connecting the first cable 15 and the electrode plate 13 embedded in the substrate 31 is equal to the sum of the number of the rectifier ground wire (unlabeled), the ground wire 18, and the dual-purpose signal wire 19.

[0075] Multiple electrode units 33 are arranged in a roughly two-dimensional array on the substrate 31 at intervals. For example... Figure 3As shown, the electrode pad 13 in this embodiment includes 20 electrode units 33, arranged in a four-row, six-column array. The first and fourth rows each have four electrode units 33, and the second and third rows each have six electrode units 33. The four electrode units 33 in each of the first and fourth rows are located in columns two through five, and the six electrode units 33 in each of the second and third rows are located in columns one through six. When an AC signal is applied to each electrode unit of the electrode pad for an extended period, the temperature rise at the corresponding skin surface area detected by the temperature detection unit varies due to differences in the location and heat generation of each electrode unit. When the temperature of some electrode units rapidly reaches or exceeds the safety threshold temperature set by the tumor electric field therapy system, the electric field generator of the tumor electric field therapy system will stop transmitting AC signals to all electrode units on the electrode pad to avoid low-temperature burns to the patient. However, this operation will shorten the effective time for applying AC signals to each electrode unit 33. To overcome this problem, in this embodiment, the electrode pad 13 divides each electrode unit 33 into zones based on the location of each electrode unit 33 and the temperature change detected by the corresponding temperature detection unit 34 when an AC signal is applied. This allows for increased effective time of AC signal application for each electrode unit 33 without causing low-temperature burns to the patient's skin. In this embodiment, the 20 electrode units 33 are spatially divided into four regions: Region 1 to Region 4. Specifically, the two electrode units 33 located in the first row, second column and first row, third column, and the three electrode units 33 located in the second row, first column, second row, second column and second row, third column are divided into region 1; the two electrode units 33 located in the first row, fourth column and first row, fifth column, and the three electrode units 33 located in the second row, fourth column, second row, fifth column and second row, sixth column are divided into region 2; the three electrode units 33 located in the third row, first column, third row, second column and third row, third column, and the two electrode units 33 located in the fourth row, second column and fourth row, third column are divided into region 3; and the three electrode units 33 located in the third row, fourth column, third row, fifth column and third row, sixth column, and the two electrode units 33 located in the fourth row, fourth column and fourth row, fifth column are divided into region 4. In terms of circuit connection, each region (1-4) corresponds to a row group. In other embodiments, the 20 electrode units 33 may also be arranged or divided into regions in other ways. Of course, in other embodiments, the electrode sheet 13 may also have other numbers of electrode units 33. In summary, the implementation of this application is not limited by the number and arrangement of the electrode units 33 of the electrode sheet 13.

[0076] Each electrode unit 33 can be subjected to an alternating electrical signal, thereby enabling the paired electrode sheets 13 to apply an alternating electric field to the tumor site of the patient. Optionally, the electrode unit 33 is a dielectric element, such as a ceramic sheet, or a polymer dielectric layer made of polymer materials. Each temperature detection unit 34 is provided corresponding to one electrode unit 33 to detect the temperature at the corresponding electrode unit 33. Each temperature detection unit 34 can be located at any position of the corresponding electrode unit 33, such as... Figure 4 and Figure 5 As shown, in this embodiment, each electrode unit 33 is provided with a through hole 331, which is suitable for mounting a temperature detection unit 34. For example, each electrode unit 33 has a through hole 331 in the middle, and each electrode unit 33's through hole 331 houses a corresponding temperature detection unit 34. Each temperature detection unit 34 also includes a diode 36 connected in series with a temperature sensor 35 to prevent reverse current flow that could affect the accuracy of the temperature signal detected by other temperature sensors 35. Spatially, the diode 36 can be disposed together with the temperature sensor 35 within the through hole 331 of the electrode unit 33.

[0077] Each diode 36 has an anode 36-1 and a cathode 36-2. The ground terminal 35-2 of the temperature sensor 35 of each temperature detection unit 34 is connected in series with the anode 36-1 of the corresponding diode 36. Two adjacent temperature detection units 34 in a row are connected in series via the signal terminal 35-1 of the temperature sensor 35 of one temperature detection unit 34 to the cathode 36-2 of the diode 36 of the other temperature detection unit 34 to achieve series connection between the two temperature detection units 34. In each column, the anode 36-1 of the diode 36 of each temperature detection unit 34 is connected to the ground terminal 35-2 of its corresponding temperature sensor 35. After the cathodes 36-2 of the diodes 36 of each temperature detection unit 34 are connected together, they are connected to the ground pin GND through a corresponding control switch 54. At this time, the cathode 36-2 of the diode 36 serves as the ground terminal 34-2 of the temperature detection unit 34, and the signal terminal 35-1 of the temperature sensor 35 serves as the signal terminal 34-1 of the temperature detection unit 34. The temperature sensor 35 can be a thermistor or other temperature sensors besides a thermistor.

[0078] like Figure 4As shown, the electrode plate 13 in this embodiment includes five grounding wires 18, each grounding wire 18 being used to ground the grounding terminals 34-2 of the temperature detection units 34 in the same row. The five grounding wires 18 of the electrode plate 13 are the first grounding wire 18-1, the second grounding wire 18-2, the third grounding wire 18-3, the fourth grounding wire 18-4, and the fifth grounding wire 18-5. In the five columns of electrode sheet 13, the first column includes electrode unit 33-1, electrode unit 33-6, electrode unit 33-11, and electrode unit 33-16; the second column includes electrode unit 33-2, electrode unit 33-7, electrode unit 33-12, and electrode unit 33-17; the third column includes electrode unit 33-3, electrode unit 33-8, electrode unit 33-13, and electrode unit 33-18; the fourth column includes electrode unit 33-4, electrode unit 33-9, electrode unit 33-14, and electrode unit 33-19; and the fifth column includes electrode unit 33-5, electrode unit 33-10, electrode unit 33-15, and electrode unit 33-20.Specifically, the first grounding wire 18-1 is used to ground the temperature detection units 34 corresponding to electrode units 33-1, 33-6, 33-11, and 33-16 in the first column group; the second grounding wire 18-2 is used to ground the two temperature detection units 34 in the first row group that correspond to and are connected in series with electrode units 33-1 and 33-2 respectively, the two temperature detection units 34 in the second row group that correspond to and are connected in series with electrode units 33-6 and 33-7 respectively, the two temperature detection units 34 in the third row group that correspond to and are connected in series with electrode units 33-11 and 33-12 respectively, and the first... In the four-row group, the two temperature detection units 34 corresponding to and connected in series with electrode units 33-16 and 33-17 are grounded together; the third grounding wire 18-3 is used to connect the three temperature detection units 34 located in the first row group corresponding to and connected in series with electrode units 33-1 to 33-3, the three temperature detection units 34 located in the second row group corresponding to and connected in series with electrode units 33-6 to 33-8, the three temperature detection units 34 located in the third row group corresponding to and connected in series with electrode units 33-11 to 33-13, and the three temperature detection units 34 located in the third row group corresponding to and connected in series with electrode units 33-11 to 33-13, and the three temperature detection units 34 located in the fourth row group. The three temperature detection units 34 in the fourth row group, which correspond to and are connected in series with electrode units 33-16 to 33-18 respectively, are grounded together; the fourth grounding wire 18-4 is used to connect the four temperature detection units 34 in the first row group, which correspond to and are connected in series with electrode units 33-1 to 33-4 respectively, the four temperature detection units 34 in the second row group, which correspond to and are connected in series with electrode units 33-6 to 33-9 respectively, the four temperature detection units 34 in the third row group, which correspond to and are connected in series with electrode units 33-11 to 33-14 respectively, and the four temperature detection units 34 in the fourth row group, which correspond to and are connected in series with electrode units 33-16 to 33-18 respectively. The four temperature detection units 34, which correspond to and are connected in series, are grounded together; the fifth grounding wire 18-5 is used to ground the five temperature detection units 34 located in the first row group that correspond to and are connected in series with electrode units 33-1 to 33-5, the five temperature detection units 34 located in the second row group that correspond to and are connected in series with electrode units 33-6 to 33-10, the five temperature detection units 34 located in the third row group that correspond to and are connected in series with electrode units 33-11 to 33-15, and the five temperature detection units 34 located in the fourth row group that correspond to and are connected in series with electrode units 33-16 to 33-20.It should be noted that these grounding wires 18 can be selectively closed or opened, for example, by connecting each grounding wire 18 in series with a control switch 54. That is, the grounding terminal 34-1 of the temperature detection unit 34 corresponding to each electrode unit 33 in each column is connected to the grounding pin GND through a control switch 54, which will be described in detail below. Figure 5 In each column, the grounding terminal 35-1 of the corresponding temperature sensor 35 is connected to the anode 36-1 of the corresponding diode 36, and then connected together through the cathode 36-2 of the corresponding diode 36. In short, each grounding wire 18 connects the grounding terminal 34-2 of each temperature detection unit 34 corresponding to all electrode units 33 in the corresponding column to the ground by shorting it with the corresponding diode 36.

[0079] like Figure 4As shown, the electrode sheet 13 in this embodiment also includes four dual-purpose signal lines 19. One end of each dual-purpose signal line 19 is connected to all parallel electrode units 33 in each row group and the series temperature detection units 34 in each row group through a corresponding rectifier switching module 16 (for example, after all temperature detection units 34 in each row group are connected in series, one temperature detection unit 34 located at the end is connected to one end of the corresponding dual-purpose signal line 19 in that row group through the rectifier switching module 16). The other end of each dual-purpose signal line 19 is connected to an adapter 20 for receiving temperature detection signals and transmitting alternating electrical signals. Specifically, the four dual-purpose signal lines 19 of the electrode sheet 13 include a first dual-purpose signal line 19-1, a second dual-purpose signal line 19-2, a third dual-purpose signal line 19-3, and a fourth dual-purpose signal line 19-4. Five electrode units 33, from electrode unit 33-1 to electrode unit 33-5, are connected in parallel and then connected to the first dual-purpose signal line 19-1 via the corresponding rectifier switching module 16. The temperature detection units 34 corresponding to each of the five electrode units 33, from electrode unit 33-1 to electrode unit 33-5, are connected in series and also connected to the first dual-purpose signal line 19-1 via the same rectifier switching module 16. Five electrode units 33-6 to electrode unit 33-10, from electrode unit 33-6 to electrode unit 33-10, are connected in parallel and then connected to the second dual-purpose signal line 19-2 via the same rectifier switching module 16. The temperature detection units 34 corresponding to each of the five electrode units 33, from electrode unit 33-6 to electrode unit 33-10, are connected in series and then connected to the second dual-purpose signal line 19-2 via the same rectifier switching module 16. Five electrode units 33, from unit 33-11 to electrode unit 33-15, are connected in parallel and then connected to the third dual-purpose signal line 19-3 via a corresponding rectifier switching module 16. The temperature detection units 34 corresponding to each of the five electrode units 33, from unit 33-11 to electrode unit 33-15, are connected in series and then connected to the third dual-purpose signal line 19-3 via the same rectifier switching module 16. Similarly, five electrode units 33, from unit 33-16 to electrode unit 33-20, are connected in parallel and then connected to the fourth dual-purpose signal line 19-4 via a corresponding rectifier switching module 16. The temperature detection units 34 corresponding to each of the five electrode units 33, from unit 33-16 to electrode unit 33-20, are connected in series and then connected to the fourth dual-purpose signal line 19-4 via the same rectifier switching module 16. In short, each dual-purpose signal line 19 connects the electrode units 33 in the same row group in parallel and the temperature detection units 34 corresponding to each of the electrode units 33 in the same row group in series via the corresponding rectifier switching module 16, and then connects them to an external device. It should be noted that these dual-purpose signal lines 19 can selectively transmit alternating electrical signals or receive temperature detection signals. This can be achieved by connecting each dual-purpose signal line 19 in series with a bidirectional switching switch 55 and a rectifier switching module 16, and coordinating with the closing or opening of the grounding wire 18.In other words, the electrode units 33 in each row group are connected in parallel, and the temperature detection units 34 in each row group are connected in series, and are all connected to a corresponding bidirectional switching switch 55 in the bidirectional switching unit (unlabeled) through a dual-purpose signal line 19. Each of the multiple bidirectional switching switches 55 in the bidirectional switching unit (unlabeled) is configured to switch the dual-purpose signal line 19 to either a temperature sampling point (unlabeled) or an alternating power supply line 57. When the dual-purpose signal line 19 is connected to a temperature sampling point (unlabeled), the switching state of the control switch 54 is configured so that the temperature detection signal detected by the corresponding temperature detection unit 34 in each column group is sampled based on the temperature sampling point (unlabeled). Alternatively, when the dual-purpose signal line 19 is connected to the alternating power supply line 57, at least one electrode unit 33 in each row group is subjected to an alternating electrical signal based on the alternating power supply line 57, which will be described in detail below.

[0080] like Figure 4 As shown, the electrode sheet 13 in this embodiment also includes multiple rectification switching modules 16, each corresponding to a row group. Each rectification switching module 16 includes an electromagnetic control switch 162 with a first terminal 1, a second terminal 2, and a third terminal 3, a rectifier bridge 161, and a Zener diode 163. The first terminal of the electromagnetic control switch 162 constitutes the first terminal of the rectification switching module 16, the second terminal 2 of the electromagnetic control switch 162 constitutes the second terminal of the rectification switching module 16, and the third terminal 3 of the electromagnetic control switch 162, after being connected to the first terminal of the rectifier bridge 161, constitutes the third terminal of the rectification switching module 16. The electromagnetic control switch 162 can be a relay or a thyristor. Each temperature detection unit 34 in each row group is connected in series to the first terminal of the corresponding rectification switching module 16, each electrode unit 33 in each row group is connected in parallel to the second terminal of the corresponding rectification switching module 16, and the third terminal of the rectification switching module 16 corresponding to each row group is connected to a dual-purpose signal line 19 corresponding to each row group. Taking the first row group as an example, the temperature detection units 34 corresponding to each of the electrode units 33-1 to 33-5 in the first row group are connected in series and then connected to the first end of the corresponding rectification switching module 16. The electrode units 33-1 to 33-5 are connected in parallel and then connected to the second end of the corresponding rectification switching module 16. The third end of the rectification switching module 16 corresponding to the first row group is connected to the first dual-purpose signal line 19-1 corresponding to the first row group.

[0081] The rectifier bridge 161 includes a first terminal 1, a second terminal 2, a third terminal 3, and a fourth terminal 4. Taking the first row group as an example, the first terminal 1 of the rectifier bridge 161 is connected to the dual-purpose signal line 19-1 corresponding to the first row group and the third terminal 3 of the electromagnetic control switch 162. A Zener diode 163 is connected in series between the second terminal and the fourth terminal of the rectifier bridge 161. The third terminal of the rectifier bridge 161 is connected to the ground pin GND. The anode of the Zener diode 163 is connected to the fourth terminal of the rectifier bridge 161, and the cathode of the Zener diode 163 is connected to the second terminal of the rectifier bridge 161. The Zener diode 163 can be a diode.

[0082] The electromagnetic control switch 162 corresponding to each row group is linked to the bidirectional switching switch 55 corresponding to that row group. Taking the first row group as an example, when the bidirectional switching switch 55-1 corresponding to the first row group switches to its first terminal 1, the electromagnetic control switch 162 corresponding to the first row group also switches to its first terminal 1, so that the third terminal 3 of the electromagnetic control switch 162 is connected to its first terminal 1 and disconnected from its second terminal 2, so that the analog temperature signals detected by one or more temperature detection units 34 corresponding to the configuration control switch 54 are sampled respectively according to the switching state of the configuration control switch 54. When the bidirectional switching switch 55-1 corresponding to the first row group switches to its second terminal 2, the electromagnetic control switch 162 corresponding to the first row group also switches to its second terminal 2, so that the third terminal 3 of the electromagnetic control switch 162 is disconnected from its first terminal 1 and connected to its second terminal 2, so that all electrode units 33 of the first row group are simultaneously applied with alternating electrical signals based on the alternating power supply line 57. At this time, all control switches 54 are in the off state. The linkage principle of the electromagnetic control switch 162 and the corresponding bidirectional switching switch 55 in the second to fourth rows is the same as that of the electromagnetic control switch 162 and the bidirectional switching switch 55 in the first row.

[0083] The tumor electric field therapy system 100 of this embodiment includes at least one pair of electrode pads 13 as described above, an adapter 20 electrically connected to the electrode pads 13, and an electric field generator 30 electrically connected to the adapter 20. The adapter 20 is connected between the electrode pads 13 and the electric field generator 30. The electric field generator 30 provides alternating electrical signals to multiple electrode units 33 of the electrode pads 13 via the adapter 20 and the dual-purpose signal line 19 of the electrode pads 13, or is used to receive temperature detection signals output by temperature detection units 34 corresponding to multiple electrode units 33. The adapter 20 transmits the alternating electrical signals generated by the electric field generator 30 to the dual-purpose signal line 19 of the electrode pads 13, and is also configured to receive temperature detection signals output by the multiple dual-purpose signal lines 19 of the electrode pads 13.

[0084] refer to Figure 4As shown, the adapter 20 includes: a first controller 51, multiple ADC units 52 connected to the first controller 51, multiple voltage-reducing resistors 53 and multiple control switches 54 corresponding to each of the multiple ADC units 52, multiple bidirectional switching switches 55 corresponding to each of the multiple ADC units 52, a first communication unit 56, an alternating power line 57 corresponding to each of the bidirectional switching switches 55, and a first power module 58 connected to the first communication unit 56, the first controller 51, and the multiple ADC units 52. The first power module 58 provides DC power VCC to each electronic component of the adapter 20. The adapter 20 also includes multiple circuit lines (unlabeled). The corresponding circuit lines (unlabeled) in the multiple circuit lines (unlabeled) are electrically connected to the multiple ground lines 18, multiple dual-purpose signal lines 19, and rectifier ground lines (unlabeled) in the substrate 31 of the corresponding electrode plate 13 through the first cable 15 of the corresponding electrode plate 13. The multiple circuit lines (unlabeled) include multiple alternating power supply lines 57 that transmit alternating electrical signals to the corresponding electrode plates 13 and are electrically connected to the multiple dual-purpose signal lines 19 in the substrate 31 of the corresponding electrode plate 13; multiple circuit lines (unlabeled) that are electrically connected one-to-one to the multiple dual-purpose signal lines 19 in the substrate 31 of the corresponding electrode plates 13 and are used to power each temperature detection unit 34 of the electrode plate 13 or transmit the temperature detection signal of the electrode plate 13; multiple circuit lines (unlabeled) that are electrically connected one-to-one to the multiple grounding lines 18 in the substrate 31 of the corresponding electrode plates 13; and one circuit line (unlabeled) that is electrically connected to the rectifier ground line (unlabeled) of each rectifier switching module 16. The number L of circuit lines electrically connecting the adapter 20 to the first cable 15 of the electrode plate 13 is equal to the sum of the number of rows and columns of the electrode units 33 of the electrode plate 13 plus one; the number H of circuit lines electrically connecting the adapter 20 to the first cables 15 of each of the X electrode plates 13 is equal to X times the number of circuit lines electrically connected to a single electrode plate 13, that is, H=XL=X*(M+N+1). The number of groups of control switches 54 and the number of groups of bidirectional switching switches 55 are related to the number of electrode plates 13. The number of groups of control switches 54 is the same as the number of groups of bidirectional switching switches 55, and is not less than the number of electrode plates 13. Optionally, the number of groups of control switches 54 and bidirectional switching switches 55 is the same as the number of electrode plates 13. The following detailed description only takes the electrical connection of an electrode plate 13 with 20 electrode units 33 to the adapter 20 as an example.

[0085] Each group of control switches 54 has multiple control switches 54, which are respectively connected to the adapter 20 and electrically connected to the circuit lines (unlabeled) corresponding one-to-one with the multiple grounding wires 18 of a corresponding electrode plate 13, and are configured to control the on or off of the multiple grounding wires 18. The circuit lines (unlabeled) that are each electrically connected to the multiple grounding wires 18 of the electrode plate 13 are grounded at the end closest to the control switch 54. The number of control switches 54 in each group of control switches 54 is related to the number of grounding wires 18 on the substrate 31 of the corresponding electrode plate 13; in this embodiment, the two are equal. Figure 4As shown, in this embodiment, the multiple control switches 54 are respectively the first control switch 54-1, the second control switch 54-2, the third control switch 54-3, the fourth control switch 54-4, and the fifth control switch 54-5. The multiple control switches 54 in the same group each control the closing or opening of the corresponding grounding wire 18 of the same electrode plate 13. The first control switch 54-1 is used to control the closing or opening of the first grounding wire 18-1 of the corresponding electrode plate 13, and can then cooperate with the corresponding group of bidirectional switching switches 55 to control the energization and de-energization of the temperature detection units 34 corresponding to the four electrode units 33 (electrode units 33-1, 33-6, 33-11, and 33-16) in the first column group of the electrode plate 13; the second control switch 54-2 is used to control the closing or opening of the second grounding wire 18-2 of the electrode plate 13, and can then cooperate with the corresponding group of bidirectional switching switches 55 to control the energization and de-energization of the temperature detection units 34 corresponding to the four electrode units 33 (electrode units 33-1, 33-6, 33-11, and 33-16). The temperature detection units 34 corresponding to electrode units 33-1 and 33-2, 33-6 and 33-7, 33-11 and 33-12, 33-16 and 33-17 in the first and second columns of the electrode sheet 13 are energized and de-energized. The third control switch 54-3 is used to control the closing or opening of the third grounding wire 18-3 of the electrode sheet 13, and can cooperate with the corresponding bidirectional switching switch 55 to control the electrode units in each column of the first to third columns of the electrode sheet 13. Temperature detection units 34 corresponding to electrode units 33-1 to 33-3, 33-6 to 33-8, 33-11 to 33-13, and 33-16 to 33-18 are energized and de-energized. The fourth control switch 54-4 controls the opening or closing of the fourth grounding wire 18-4 of the electrode plate 13, and can cooperate with the corresponding bidirectional switching switches 55 to control the electrode units 33-1 to 33-4 and 33-18 in each of the first to fourth columns of the electrode plate 13. -6 to electrode units 33-9, 33-11 to 33-14, and 33-16 to 33-19, corresponding to each temperature detection unit 34, are energized and de-energized. The fifth control switch 54-5 controls the opening or closing of the fifth grounding wire 18-5 of the electrode plate 13, and can cooperate with the corresponding bidirectional switching switch 55 to control the energization and de-energization of each of the 20 electrode units 33-1 and 33-20 in the first to fifth columns of the electrode plate 13. The control switch 54 can be a mechanical switch, such as a relay. The control switch 54 can also be an electronic switch, and each control switch 54 can be opened and closed by an additional first controller 51.

[0086] In this embodiment, all sets of control switches 54 are electronic switches. The first controller 51 is communicatively connected to the multiple sets of control switches 54 and is used to sequentially and cyclically control the opening and closing states of multiple control switches 54 in each set of control switches 54. This sequentially and individually activates each of the multiple grounding wires 18 of the corresponding electrode plate 13 and coordinates with the switching of the corresponding bidirectional switching switch 55 to collect the temperature detection signals detected by all temperature detection units 34 on the electrode plate 13. The number of control switches 54 in each set is the same as the number of grounding wires 18 of the corresponding electrode plate 13.

[0087] Each group of bidirectional switching switches 55 is provided with multiple bidirectional switching switches 55. The multiple bidirectional switching switches 55 in each group are respectively connected to the adapter 20 and electrically connected to the circuit lines (unlabeled) that correspond one-to-one with the multi-purpose signal lines 19 of the corresponding electrode plate 13. The number of bidirectional switching switches 55 in each group of bidirectional switching switches 55 is related to the number of multi-purpose signal lines 19 on the substrate 31 of the corresponding electrode plate 13, and is equal to the number of multi-purpose signal lines 19 on the substrate 31 of the corresponding electrode plate 13. Each bidirectional switch 55 has a acquisition terminal 1 and an input terminal 2. The acquisition terminals 1 of multiple bidirectional switches 55 in the same group are electrically connected to the corresponding detection channels of the multiple detection channels of the corresponding group of ADC units 52 as corresponding temperature sampling points (unlabeled). The input terminal 2 of each bidirectional switch 55 in the same group is electrically connected to the corresponding AC power line 57 and is configured to control the multiple dual-purpose signal line 19 to be connected to the corresponding AC power line 57 to transmit AC electrical signals or to the corresponding detection channel of the corresponding group of ADC units 52 to receive the temperature detection signal output by the temperature detection unit 34. Each bidirectional switch 55 may also include a third terminal (unlabeled) electrically connected to the corresponding dual-purpose signal line 19.

[0088] like Figure 4As shown, taking the electrical connection of one electrode plate 13 with the adapter 20 as an example, in this embodiment with 20 electrode units 33, the multiple bidirectional switching switches 55 are respectively the first bidirectional switching switch 55-1, the second bidirectional switching switch 55-2, the third bidirectional switching switch 55-3, and the fourth bidirectional switching switch 55-4. The multiple bidirectional switching switches 55 in the same group control the corresponding dual-purpose signal line 19 of the same electrode plate 13 to switch between transmitting alternating electrical signals and transmitting temperature detection signals. Specifically, the first bidirectional switching switch 55-1 can, in conjunction with the rectifier switching module 16 corresponding to the first row group of the electrode 13 and in cooperation with the corresponding control switches 54-1, 54-2, 54-3, 54-4, and 54-5, control the first dual-purpose signal line 19-1 of the corresponding electrode 13 to turn on the electrode units 33-1 to 33-5 in the first row group to transmit alternating electrical signals to the electrode units 33-1 to 33-5 in the first row group, or turn on the signal terminals 34-2 of each temperature detection unit 34 corresponding to the electrode units 33-1 to 33-5 in the first row group so that the temperature detection signals (such as analog temperature signals) detected by one or more combinations of the temperature detection units 34 corresponding to these electrode units 33 are sampled and output to the corresponding ADC unit 52. The second bidirectional switching switch 55-2 can be linked with the rectifier switching module 16 corresponding to the second row group of the electrode 13 and cooperate with the corresponding control switches 54-1, 54-2, 54-3, 54-4, and 54-5 to control the second dual-purpose signal line 19-2 of the corresponding electrode 13. This enables the electrode units 33-6 to 33-10 in the second row group to conduct alternating electrical signals to the electrode units 33-6 to 33-10 in the second row group, or enables the signal terminals 34-2 of each temperature detection unit 34 corresponding to the electrode units 33-6 to 33-10 in the second row group to conduct. This allows the temperature detection signals (such as analog temperature signals) detected by one or more combinations of the temperature detection units 34 corresponding to these electrode units 33 to be sampled and output to the corresponding ADC unit 52.The third bidirectional switching switch 55-3 can, in conjunction with the rectifier switching module 16 corresponding to the third row group of the electrode 13 and in cooperation with the corresponding control switches 54-1, 54-2, 54-3, 54-4, and 54-5, control the third dual-purpose signal line 19-3 of the corresponding electrode 13 to enable the electrode units 33-11 to 33-15 in the third row group to conduct alternating electrical signals to the electrode units 33-11 to 33-15 in the third row group, or enable the signal terminals 34-2 of each temperature detection unit 34 corresponding to the electrode units 33-11 to 33-15 in the third row group to conduct, so that the temperature detection signals (such as analog temperature signals) detected by one or more combinations of the temperature detection units 34 corresponding to these electrode units 33 are sampled and output to the corresponding ADC unit 52. The fourth bidirectional switching switch 55-4, in conjunction with the rectifier switching module 16 corresponding to the fourth row group of the electrode 13 and in cooperation with the corresponding control switches 54-1, 54-2, 54-3, 54-4, and 54-5, controls the fourth dual-purpose signal line 19-4 of the corresponding electrode 13. This enables the electrode units 33-16 to 33-20 in the fourth row group to conduct, transmitting alternating electrical signals to the electrode units 33-16 to 33-20 in the fourth row group. Alternatively, it enables the signal terminals 34-2 of each temperature detection unit 34 corresponding to the electrode units 33-16 to 33-20 in the fourth row group to conduct, so that the temperature detection signals (e.g., analog temperature signals) detected by one or more combinations of the temperature detection units 34 corresponding to these electrode units 33 are sampled and output to the corresponding ADC unit 52.

[0089] When all bidirectional switching input terminals 2 in each group of bidirectional switching switches 55 are turned on and all acquisition terminals 1 are turned off, and the third terminals of the corresponding rectifier switching modules 16 are also connected to the second terminals, and all control switches 54 in the corresponding group of control switches 54 are turned off, alternating electrical signals can be transmitted to each electrode unit 33 in the corresponding row group of the corresponding electrode sheet 13; when the acquisition terminals 1 of each bidirectional switching switch 55 in each group of bidirectional switching switches 55 are turned on sequentially and time-divisionally, and all input terminals 2 are turned off, and the third terminals of the corresponding rectifier switching modules 16 are connected to the first terminals, they can cooperate with each control switch 54 in the corresponding group of control switches 54 to transmit the temperature detection signals collected by the temperature sensors 35 of the temperature detection units 34 corresponding to each electrode unit 33 on the electrode sheet 13 in a time-division manner. The bidirectional switching switches 55 can be mechanical switches, such as relays. The bidirectional switching switches 55 can also be electronic switches, and each bidirectional switching switch 55 can be switched by an additional first controller 51.

[0090] In this embodiment, all sets of bidirectional switching switches 55 are electronic switches. The first controller 51 is communicatively connected to the multiple sets of bidirectional switching switches 55, and is used to control the switching of multiple bidirectional switching switches 55 in each set between their respective acquisition terminals 1 and input terminals 2, and to control the switching of the third terminal 3 of the electromagnetic control switch 162 in the corresponding rectifier switching module 16 between being connected to its first terminal and being connected to its second terminal 2. At the same time, it cooperates with the closing or opening of the corresponding control switch 54 to continuously monitor the temperature of the patient's body surface detected by all temperature detection units 34 on the electrode pad 13 or to transmit alternating electrical signals to the patient through each electrode unit 33.

[0091] In this embodiment, each ADC unit 52 is electrically connected to the acquisition terminals 1 of multiple bidirectional switching switches 55 in the corresponding group through multiple circuit lines (unlabeled) within the adapter 20, and is configured to receive the temperature detection signal transmitted by the multi-channel dual-purpose signal line 19 of the corresponding electrode 13, and convert the temperature detection signal from an analog signal to a digital signal. For example... Figure 4 As shown, each ADC unit 52 contains four detection channels A, B, C, and D, namely, the first detection channel A, the second detection channel B, the third detection channel C, and the fourth detection channel D. Each detection channel A, B, C, and D is used to connect to one of the multiple dual-purpose signal lines 19 through a corresponding bidirectional switch 55. Specifically, the first detection channel A is connected to the first dual-purpose signal line 19-1 through the acquisition terminal 1 of the first bidirectional switch 55-1, the second detection channel B is connected to the second dual-purpose signal line 19-2 through the acquisition terminal 1 of the second bidirectional switch 55-2, the third detection channel C is connected to the third dual-purpose signal line 19-3 through the acquisition terminal 1 of the third bidirectional switch 55-3, and the fourth detection channel D is connected to the fourth dual-purpose signal line 19-4 through the acquisition terminal 1 of the fourth bidirectional switch 55-4. Each detection channel A, B, C, and D is used to receive the temperature detection signal collected by the temperature detection unit 34 corresponding to each electrode unit 33 in the row group connected to the corresponding dual-purpose signal line 19. In addition, each detection channel A, B, C, and D is connected to a first power supply module 58 via a corresponding voltage divider resistor 53 in the adapter 20 to provide detection voltage to the detection channel A, B, C, and D. The first power supply module 58 provides DC power.

[0092] In this embodiment, the first communication unit 56 is configured to acquire digital signals output by multiple sets of ADC units 52 and send the digital signals to the electric field generator 30. The electric field generator 30 is also configured to control and adjust the voltage of the alternating electrical signal provided to the multiple electrode units 33 of the electrode sheet 13 according to the received digital signals. For example, when any of the received digital signals exceeds a preset threshold, it indicates that the temperature detected by the temperature detection unit 34 corresponding to at least one electrode unit 33 in the electrode sheet 13 exceeds the preset temperature threshold (e.g., 41°C, 42°C, etc.). At this time, the voltage of the alternating electrical signal output by the electric field generator 30 can be appropriately reduced to avoid the electrode unit 33 of the electrode sheet 13 from becoming too hot when the alternating electrical signal is applied, causing low-temperature burns to the patient's skin. The aforementioned preset temperature threshold and preset threshold can be determined according to human safety thresholds. The first communication unit 56 is controlled by the first controller 51 and serially transmits the digital signals converted by multiple sets of ADC units 52. In this embodiment, the preset temperature threshold can be a value within the range of 36°C-45°C.

[0093] refer to Figure 6 and Figure 7 In this embodiment, the first power module 58 is electrically connected to the second power module 32 of the electric field generator 30 and is configured to supply power to the first controller 51, multiple ADC units 52, and the first communication unit 56 of the adapter 20. Each electrode 13 is connected to the adapter 20 via a first connector 60, which is adapted to connect the corresponding electrode 13 to the adapter 20. Figure 1 As shown, the first connector 60 includes a first plug 61 located at the end of the first cable 15 away from the electrode plate 13 and a first socket 62 located on the adapter 20. The first plug 61 and the first socket 62 are press-type spring connectors, that is, the first connector 60 connects the adapter 20 and the electrode plate 13 by means of a connector. Each first cable 15 has four wires that are electrically connected to four bidirectional switching switches 55 in a corresponding group, five wires that are electrically connected to five control switches 54 in a corresponding group, and one wire that is connected to a rectifier ground wire (unlabeled) that is short-circuited to the third end of the rectifier bridge 161 of each rectifier switching module 16 in the corresponding group. That is, each first connector 60 is electrically connected to a corresponding group of bidirectional switching switches 55 and a corresponding group of control switches 54 of the adapter 20 through nine of the ten wires, and is connected to the electric field generator 30 through a corresponding alternating power line 57 of the adapter 20.

[0094] A second connector 70 is provided between the adapter 20 and the electric field generator 30, and the second connector 70 is adapted to connect the electric field generator 30 to the adapter 20. For example... Figure 1As shown, the adapter 20 also includes a second cable 25 connected to the second connector 70. The second connector 70 includes a second plug 71 located at the end of the second cable 25 away from the first controller 51 and a second socket 72 located on the electric field generator 30. The second plug 71 and the second socket 72 are push-button spring connectors, that is, the second connector 70 connects the adapter 20 to the electric field generator 30 using a connector method. Each first connector 60, such as X1, Y1, X2, and Y2, is connected to the second connector 70 via a corresponding alternating power line 57. The first connectors 60, such as X1, Y1, X2, and Y2, are also connected to a corresponding set of control switches 54 and a corresponding set of ADC units 52, respectively. Each first connector 60 is connected to the second connector 70 and the corresponding set of ADC units 52 via a corresponding set of bidirectional switching switches 55. The second cable 25 has eight wires, including four wires 1 to 4 that are electrically connected to the corresponding alternating power lines 57 and used for transmitting alternating electrical signals, one wire 5 that is electrically connected to the data receiving line RX of the first communication unit 56, one wire 6 that is electrically connected to the data transmitting line TX of the first communication unit 56, one wire 7 that is electrically connected to the VCC power line of the first power module 58, and one wire 8 that is electrically connected to the GND line of the first power module 58. The second connector 70 is connected to the first communication unit 56 via the data receiving line RX and the data transmitting line TX. The VCC pin of the second connector 70 is connected to the VVC power line of the first power module 58, and the GND pin of the second connector 70 is connected to the GND line of the first power module 58 and grounded. The VCC pin of the second connector 70 is also connected to the corresponding group of voltage-reducing resistors 53 and the corresponding group of ADC units 52 via the VCC power line of the first power module 58.

[0095] refer to Figure 6 and Figure 8The electric field generator 30 includes a second power supply module 32, a second controller 37, an AC signal generator 39, a second communication unit 38, and a set of power switches 40. The VCC pin of the second connector 70 is also electrically connected to the VCC power line of the second power supply module 32, and the GND pin of the second connector 70 is grounded through the GND line of the second power supply module 32. The second power supply module 32 is also connected to and supplies power to the second controller 37 and the AC signal generator 39, respectively. The second communication unit 38 is electrically connected to the wire 5 of the second connector 70 through its data receiving line RX and to the wire 6 of the second connector 70 through its data transmitting line TX, thereby enabling information exchange between the electric field generator 30 and the adapter 20. The second controller 37 is also electrically connected to the second communication unit 38, the AC signal generator 39, and a set of power switches 40. The second controller 37 is configured to control the opening and closing of each power switch 40 in the set of power switches 40 and adjust the relevant parameters of the alternating electrical signal applied by the AC signal generator 39 according to the relevant digital signals received from the adapter 20 by the second communication unit 38. The AC signal generator 39 is electrically connected to the conductors 1 to 4 of the second connector 70 for transmitting alternating electrical signals through the set of power switches 40. The set of power switches 40 includes multiple power switches 40, and the multiple power switches 40 are arranged one-to-one with multiple electrode plates 13. Each power switch 40 is electrically connected to a corresponding conductor 1, 2, 3, 4 in the second connector 70 for transmitting alternating electrical signals through an AC power line 41-1, 41-2, 41-3, 41-4, and is also electrically connected to the corresponding electrode plate 13 through the corresponding conductors 1, 2, 3, 4 of the second connector 70, so as to transmit an alternating electrical signal to each electrode plate 13. The AC signal generator 39 is electrically connected to the group of power supply switches 40 via multiple AC power lines 41. Specifically, the number of power supply switches 40 of the electric field generator 30 is related to the number of electrode plates 13. In this embodiment, the number of power supply switches 40 is equal to the number of electrode plates 13, and both are four. The power supply switches 40 include a first power supply switch 40-1, a second power supply switch 40-2, a third power supply switch 40-3, and a fourth power supply switch 40-4, which are electrically connected to the wires 1 to 4 of the second connector 70 respectively.One end of the first power supply switch 40-1 is electrically connected to the AC signal generator 39 via the AC power line 41 of the electric field generator 30, and the other end is electrically connected to the corresponding conductor 1 for transmitting alternating electrical signals in the second connector 70 via an AC power line 41-1, and is also electrically connected to the AC power line 57 at port X1 of the adapter 20 via the conductor 1 of the second connector 70. The AC power line 57 at port X1 of the adapter 20 is electrically connected to the first connector 60, and the first connector 60 at port X1 of the adapter 20 is electrically connected to the corresponding electrode plate 13, so as to control whether the AC signal generator 39 transmits alternating electrical signals to the electrode plate 13 electrically connected to port X1 of the adapter 20. The second power supply switch 40-2 is electrically connected at one end to the AC signal generator 39 via the AC power line 41 of the electric field generator 30, and at the other end via an AC power line 41-2 to the corresponding conductor 2 of the second connector 70 for transmitting alternating electrical signals. The conductor 2 of the second connector 70 is then electrically connected to the alternating power line 57 at port Y1 of the adapter 20. The alternating power line 57 at port Y1 of the adapter 20 is electrically connected to the first connector 60. The first connector 60 at port Y1 of the adapter 20 is electrically connected to the corresponding electrode 13, thereby controlling whether the AC signal generator 39 supplies alternating electrical signals to the electrode 13 electrically connected to port Y1 of the adapter 20. The third power supply switch 40-3 is electrically connected at one end to the AC signal generator 39 via the AC power line 41 of the electric field generator 30, and at the other end via an AC power line 41-3 to the corresponding conductor 3 of the second connector 70 for transmitting alternating electrical signals. The conductor 3 of the second connector 70 is then connected to the alternating power line 57 at port X2 of the adapter 20. The alternating power line 57 at port X2 of the adapter 20 is connected to the first connector 60. The first connector 60 at port X2 of the adapter 20 is connected to the corresponding electrode 13, thereby controlling whether the AC signal generator 39 supplies alternating electrical signals to the electrode 13 electrically connected to port X2 of the adapter 20. The fourth power supply switch 40-4 is electrically connected at one end to the AC signal generator 39 via the AC power line 41 of the electric field generator 30, and at the other end via an AC power line 41-4 to the corresponding wire 4 in the second connector 70 that transmits alternating electrical signals. It is also electrically connected via the wire 4 of the second connector 70 to the alternating power line 57 at port Y2 of the adapter 20. The alternating power line 57 at port Y2 of the adapter 20 is electrically connected to the first connector 60. The first connector 60 at port Y2 of the adapter 20 is electrically connected to the corresponding electrode plate 13, so as to control whether the AC signal generator 39 transmits alternating electrical signals to the electrode plate 13 electrically connected to port Y1 of the adapter 20.

[0096] The following will refer to Figures 4 to 7 The working principle of the tumor electric field therapy system 100 in this embodiment is described in detail.

[0097] The electromagnetic control switch 162 in the rectifier switching module 16 is a normally closed switch. By default, the third terminal 3 of the electromagnetic control switch 162 is connected to the first terminal 1 and connected to each temperature sensor 35 in the corresponding row group. The electromagnetic control switch 162 is linked to the corresponding bidirectional switching switch 55. When the corresponding bidirectional switching switch 55 switches to its acquisition terminal 1, the electromagnetic control switch 162 also switches to connect its third terminal 3 to the first terminal 1, so that the temperature sensor 35 located in the same row group is connected to the corresponding dual-purpose signal line 19, and the connection between the electrode unit 33 in the corresponding row group and the corresponding dual-purpose signal line 19 is disconnected. The corresponding control switches 54 are closed in sequence to obtain the analog temperature signal detected by the corresponding temperature sensor 35. When the corresponding bidirectional switch 55 is switched to its input terminal 2, the AC signal will trigger the electromagnetic control switch 162 after passing through the rectifier bridge 161. The electromagnetic control switch 162 is also switched to make its third terminal 3 and its second terminal 2 conduct, so as to connect the electrode unit 33 located in the same row group to the corresponding dual-purpose signal line 19, disconnect the temperature sensor 35 in the corresponding row group from the corresponding dual-purpose signal line 19, and disconnect all control switches 54 to transmit AC signals to the corresponding electrode unit 33.

[0098] Specifically, when it is necessary to detect the temperature at each electrode unit 33 of an electrode plate 13, the second controller 37 of the electric field generator 30 controls the corresponding power supply switch 40 to disconnect the alternating electrical signal applied to the electrode plate 13. The first controller 51 of the adapter 20 or the second controller 37 of the electric field generator 30 controls the acquisition terminal 1 of each of the multiple bidirectional switching switches 55 electrically connected to the electrode plate 13 to be turned on and the input terminal 2 to be turned off, and in conjunction with this, controls the electromagnetic control switch 162 in the rectifier switching module 16 corresponding to each bidirectional switching switch 55. The third terminal 3 is connected to the first terminal 1 and disconnected from the second terminal 2, thus disconnecting the alternating electrical signal applied to the electrode plate 13. Simultaneously, the first controller 51 of the adapter 20 or the second controller 37 of the electric field generator 30 controls each of the control switches 54 in a set of control switches 54 electrically connected to the electrode plate 13 to be turned on sequentially and in a time-division manner. At this time, the temperature detection signals of the temperature detection units 34 corresponding to the electrode units 33 in the corresponding row group can be collected through multiple detection channels A, B, C, and D of a set of ADC units 52 corresponding to the electrode plate 13. These temperature detection signals can be characterized by voltage values. Only one of the five control switches 54 in the set of control switches 54 corresponding to the electrode plate 13 can be turned on at any given time, while the other four are disconnected. When all power supply switches 40 are disconnected, and only one of the four bidirectional switching switches 55 corresponding to the ADC unit 52 is switched to its acquisition terminal 1, while the rest are switched to its input terminal 2, one of the dual-purpose signal lines 19 of the electrode plate 13 can be electrically connected to a detection channel (A, B, C, or D) of the corresponding ADC unit 52 to conduct. With this configuration, the ADC unit 52 can acquire the voltage value of the first temperature detection unit 34 in the same row group that is shorted by a grounding wire 18 corresponding to the control switch 54, or the voltage values ​​of the first and second temperature detection units 34 connected in series, or the voltage values ​​of the first to third temperature detection units 34 connected in series, or the voltage values ​​of the first to fourth temperature detection units 34 connected in series, or the voltage values ​​of the first to fifth temperature detection units 34 connected in series.

[0099] Specifically, multiple bidirectional switching switches 55 can be switched sequentially to collect the temperature detected by the temperature detection unit 34 corresponding to the electrode unit 33 of each row group.

[0100] When it is necessary to collect the temperature detection signal detected by the temperature detection unit 34 corresponding to each electrode unit 33 in the first row group, the second controller 37 of the electric field generator 30 controls the power supply switch 40 corresponding to the electrode 13 to disconnect the alternating electrical signal applied to the electrode 13, and controls the first bidirectional switching switch 55-1 to switch to its acquisition terminal 1, and the second bidirectional switching switch 55-2, the third bidirectional switching switch 55-3 and the fourth bidirectional switching switch 55-4 to switch to their respective input terminals 2. At the same time, the electromagnetic control switch 162 in the rectifier switching module 16 corresponding to the first bidirectional switching switch 55-1 is switched to the state where its third terminal 3 is connected to its first terminal 1, and the third terminal 3 of the electromagnetic control switch 162 in each rectifier switching module 16 corresponding to the second bidirectional switching switch 55-2 to the fourth bidirectional switching switch 55-4 is connected to its second terminal 2. Next, multiple control switches 54 are closed individually in sequence. Specifically, control switch 54-1 is closed first, and control switches 54-2, 54-3, 54-4, and 54-5 are all opened. The temperature detection unit 34 corresponding to electrode unit 33-1 is energized, and the temperature detection units 34 corresponding to the remaining electrode units 33 are de-energized. The signal terminal 34-1 of the temperature detection unit 34 corresponding to electrode unit 33-1 is short-circuited on the first detection channel A of the ADC unit 52 in this group. Since only the ground terminal 34-2 of the temperature detection unit 34 corresponding to electrode unit 33-1 is grounded, while the corresponding terminals of electrode units 33-2 to 33-5 in the same row group are closed... The grounding terminal 34-2 of the temperature detection unit 34 is disconnected, and each temperature detection unit 34 is equipped with a diode 36 connected in series with the temperature sensor 35 to prevent reverse current and ensure that the temperature detection units 34 corresponding to the other electrode units 33 will not affect the resistance value of the temperature detection unit 34 corresponding to the electrode unit 33-1. Therefore, only the temperature detection unit 34 corresponding to the electrode unit 33-1 is effectively working on the first detection channel A of this ADC unit 52. The temperature detection signal (voltage value) collected by the first detection channel A is the voltage value of the temperature detection unit 34 corresponding to the electrode unit 33-1. At this time, the accurate acquisition of the temperature detection signal at the electrode unit 33-1 is completed.

[0101] Next, close control switch 54-2 and disconnect control switches 54-1, 54-3, 54-4, and 54-5. The temperature detection units 34 corresponding to electrode units 33-1 and 33-2 are connected in series and energized. The remaining temperature detection units 34 corresponding to electrode units 33 are de-energized. In this group of ADC units 52, the signal terminal 34-1 of the temperature detection unit 34 corresponding to electrode unit 33-1 is short-circuited on the first detection channel A. Since only the ground terminal 34-2 of the temperature detection unit 34 corresponding to electrode unit 33-2 is grounded, while the ground terminals 34-2 of the temperature detection units 34 corresponding to electrode units 33-3 to 33-5 in the same row are disconnected, and each temperature detection unit 34 has a connection to the temperature... The temperature sensor 35 is connected in series with the corresponding diode 36 to prevent reverse current and ensure that the temperature detection units 34 of the other electrode units 33 do not affect the resistance values ​​of the temperature detection units 34 corresponding to electrode units 33-1 and 33-2. Therefore, only the temperature detection units 34 corresponding to electrode units 33-1 and 33-2 are effectively operating on the first detection channel A of this ADC unit 52. At this time, the temperature detection signal (voltage value) collected by the first detection channel A is the combined voltage value of the temperature detection units 34 corresponding to electrode units 33-1 and 33-2 (that is, the combined voltage value is the combined voltage value of the temperature detection units 34 corresponding to electrode units 33-1 and 33-2). Subtracting the voltage value of electrode unit 33-1 from this combined voltage value yields the voltage value of electrode unit 33-2. Similarly, when only control switch 54-3 is closed and the other control switches 54 are open, the temperature detection signal (voltage value) collected by the first detection channel A is the combined voltage value of the temperature detection units 34 corresponding to each of electrode units 33-1 to 33-3; when only control switch 54-4 is closed and the other control switches 54 are open, the temperature detection signal (voltage value) collected by the first detection channel A is the combined voltage value of the temperature detection units 34 corresponding to each of electrode units 33-1 to 33-4; when only control switch 54-5 is closed and the other control switches 54 are open, the temperature detection signal (voltage value) collected by the first detection channel A is the combined voltage value of the temperature detection units 34 corresponding to each of electrode units 33-1 to 33-5. After acquiring the voltage value or combined voltage value detected by the temperature detection units 34 of each electrode unit 33 in the first row group, the temperature detection signal corresponding to each electrode unit 33 in the first row group can be obtained by simple subtraction conversion.

[0102] Similarly, when it is necessary to collect the temperature detection signal detected by the temperature detection unit 34 corresponding to the electrode unit 33 of the second row group, the second controller 37 of the electric field generator 30 controls the power supply switch 40 corresponding to the electrode 13 to disconnect the alternating power signal applied to the electrode 13, the second bidirectional switching switch 55-2 switches to its acquisition terminal 1, and all other bidirectional switching switches 55 switch to their respective input terminals 2. The electromagnetic control switch 162 in the rectifier switching module 16 corresponding to the second bidirectional switching switch 55-2 switches to the state where its third terminal is connected to its first terminal, and the electromagnetic control switch 162 of each rectifier switching module 16 corresponding to the other rows switches to the state where its third terminal is connected to its second terminal. And in turn, one of the multiple control switches 54 is closed in sequence. At this time, only the second detection channel B in the ADC unit 52 of this group is turned on and can successively collect the voltage value or combined voltage value of the temperature detection unit 34 corresponding to each electrode unit 33 of the second row group, thereby obtaining the temperature detection signal corresponding to each electrode unit 33 of the second row group.

[0103] The control logic for collecting the temperature detection signals detected by the temperature detection unit 34 corresponding to the electrode unit 33 in the third and fourth rows is similar to the control logic for the first or second row group.

[0104] Therefore, the first controller 51 of the adapter 20 or the second controller 37 of the electric field generator 30 can acquire the temperature detection signals of the temperature detection units 34 corresponding to all electrode units 33 of the electrode sheet 13 by controlling a set of bidirectional switching switches 55 and a set of control switches 54, which are all electrically connected to a certain electrode sheet 13, as well as the rectifier switching modules 16 corresponding to and linked with the set of bidirectional switching switches 55. That is, the bidirectional switching unit (unlabeled) is configured to switch the dual-purpose signal line 19 of the corresponding row group to the corresponding temperature sampling point (unlabeled) and simultaneously control the corresponding rectifier switching module 16, and by configuring the on / off state of the control switch 54 of the corresponding column group, the temperature detection signal of a single temperature detection unit 34 or a combined temperature detection signal of multiple temperature detection units 34 can be obtained. Similarly, the temperature detection signals of the temperature detection units 34 of each electrode unit 33 of other electrode sheets 13 can be obtained.

[0105] The first controller 51 or the second controller 37, multiple ADC units 52, and multiple bidirectional switching switches 55 can automatically execute operations through pre-programmed program code. For example, the first controller 51 or the second controller 37 first controls the first bidirectional switching switch 55-1 in the corresponding group of bidirectional switching switches 55 to switch to the acquisition terminal 1, making its acquisition terminal 1 conductive and its input terminal 2 disconnected. All other bidirectional switching switches 55 are switched to their respective input terminals 2. At the same time, the third terminal of the electromagnetic control switch 162 in the corresponding rectifier switching module 16 is connected to the first terminal, making its third terminal disconnected from the second terminal. Then, control switches 54-1 to 54-5 are closed sequentially. Similarly, the switching of the second bidirectional switching switch 55-2, the third bidirectional switching switch 55-3, and the fourth bidirectional switching switch 55-4 can be controlled. Through this operation, temperature detection signals of all temperature detection units 34 on at least one pair of electrode plates 13 can be obtained.

[0106] Therefore, in the embodiments of this application, by cooperating with the control switch 54, the bidirectional switching switch 55 and the electromagnetic control switch 162 in the rectifier switching module 16, temperature detection at each electrode unit 33 can be achieved without mutual interference and with high detection accuracy.

[0107] Specifically, when it is necessary to apply an alternating electrical signal to each electrode unit 33 of a certain electrode plate 13, the first controller 51 of the adapter 20 or the second controller 37 of the electric field generator 30 controls all of the control switches 54 electrically connected to the electrode plate 13 to be disconnected; controls the input terminal 2 of each of the multiple bidirectional switching switches 55 electrically connected to the electrode plate 13 to be turned on and the acquisition terminal 1 to be turned off; at the same time, the third terminal of the electromagnetic control switch 162 of each corresponding rectifier switching module 16 is turned on and its second terminal is turned off; and the second controller 37 of the electric field generator 30 controls a power supply switch 40 electrically connected to the electrode plate 13 to be turned on. At this time, the second controller 37 of the electric field generator 30 controls the AC signal generator 39 to apply an alternating electrical signal to each electrode unit 33 of the electrode plate 13 through the alternating power supply line 57, and the magnitude of the applied alternating electrical signal voltage or current is adjustable. That is, the bidirectional switching unit (unlabeled) is configured to simultaneously connect the dual-purpose signal lines 19 corresponding to at least two row groups to the alternating power supply line 57, so that the electrode units 33 of at least two row groups are simultaneously subjected to alternating electrical signals based on the alternating power supply line 57. Since multiple electrode units 33 of each row group are connected in parallel, when an alternating electrical signal is applied to the electrode units 33 of the electrode sheet 3, an alternating electrical signal is simultaneously applied to multiple electrode units 33 within a row group. In other embodiments, alternating electrical signals can also be applied to the electrode units 33 of two or three row groups simultaneously within the same time period; details will not be elaborated here.

[0108] It should be noted that in this embodiment, the control switch 54, which is electrically connected to each of the multiple grounding lines 18 of the electrode plate 13, and the bidirectional switching switch 55, which is electrically connected to each of the multiple dual-purpose signal lines 19 of the electrode plate 13, are both located in the adapter 20. However, in other embodiments, the control switch 54, which is electrically connected to the grounding line 18, and the bidirectional switching switch 55, which is electrically connected to the dual-purpose signal line 19, may also be located on the electrode plate 13 or in the electric field generator 30, which will not be elaborated further here. In addition, the ADC unit 52 located in the adapter 20 may also be located in the electric field generator 30 and directly controlled by the second controller 37.

[0109] The tumor electric field therapy system 100 of this application can achieve real-time, comprehensive and accurate monitoring of the temperature of all electrode units 33 on the electrode sheet 13 without increasing the number of wire cores in the first cable 15 electrically connected to the electrode sheet 13. Based on the obtained temperature detection signals, it can determine whether the electrode sheet 13 is qualified; or it can determine whether the temperature detection unit 34 of the electrode sheet 13 is faulty or abnormal based on the obtained temperature detection signals, and determine whether the electrode sheet 13 needs to be replaced based on the number of faulty or abnormal temperature detection units 34; or, if the electrode sheet is qualified, it can identify the electrode sheet type based on the obtained temperature detection signals; or, if the electrode sheet is qualified, it can determine whether the electrode unit 33 of the electrode sheet 13 is overheated based on the obtained temperature detection signals, and thus control the alternating electrical signal applied to the electrode sheet 13 or the corresponding row of electrode units 33 of the electrode sheet 13, avoiding low-temperature burns to the patient's body surface during tumor treatment through the electrode sheet 13. Furthermore, the substrate 31 of the electrode sheet 13 of this application is electrically connected to the signal terminal 34-1 of the same electrode unit 33 and its corresponding temperature detection unit 34 via the same dual-purpose signal line 19. This allows for the transmission of alternating electrical signals in a first mode and DC signals for temperature signal acquisition and the acquired temperature detection signals in a second mode via the dual-purpose signal line 19. Simultaneously, it significantly reduces the number of conductive traces (grounding line 18, dual-purpose signal line 19) laid on the substrate, reducing the wiring difficulty of the substrate 31, simplifying the manufacturing process, reducing the weight of the substrate 31, and lowering manufacturing costs. The electrode sheet 13 of this application can also switch between applying alternating electrical signals for tumor treatment and transmitting DC signals for temperature acquisition and transmitting the acquired temperature detection signals through a combination of control switch 54 electrically connected to the grounding line 18, bidirectional switching switch 55 electrically connected to the dual-purpose signal line 19, and rectifier switching module 16 linked to the bidirectional switching switch 55.

[0110] Specifically, when it is necessary to apply alternating electrical signals to the patient through the electrode units 33 of a certain electrode pad 13, the first controller 51 of the adapter 20 or the second controller 37 of the electric field generator 30 controls all the control switches 54 in a set of control switches 54 corresponding to the electrode pad 13 to be disconnected, and at the same time controls all the bidirectional switching switches 55 in a set of bidirectional switching switches 55 corresponding to the electrode pad 13 to be switched to their respective input terminals 2, so that the acquisition terminals 1 of these bidirectional switching switches 55 are all disconnected and the input terminals 2 are all turned on, and the first terminals of the electromagnetic control switches 161 in each rectifier switching module 16 corresponding to each bidirectional switching switch 55 are all disconnected from their third terminals and the second terminals are all turned on to their third terminals, so that each dual-purpose signal line 19 of the electrode pad 13 is electrically connected to an alternating power supply line 57 corresponding to the electrode pad 13 of the adapter 20, thereby transmitting the alternating electrical signals to each electrode unit 33 of the electrode pad 13. When the digital temperature signals corresponding to the temperature detection signals of the temperature detection units 34 corresponding to all electrode units 33 of the detected electrode plate 13 are much lower than the preset temperature threshold stored in the electric field generator 30 or the adapter 20, the electric field generator 30 controls the AC signal generator 39 through its second controller 37 to continue generating alternating electrical signals with increased voltage or current amplitude, or with constant voltage or current amplitude. These signals are then transmitted to the corresponding electrode plate 13 through a corresponding alternating power line 57 of the adapter 20, so that the electrode plate 13 continues to receive alternating electrical signals. When the digital temperature signals corresponding to the temperature detection signals of the temperature detection units 34 corresponding to all electrode units 33 of the detected electrode plate 13 are lower than but close to the preset temperature threshold stored in the electric field generator 30 or the adapter 20, the electric field generator 30 can reduce the voltage or current of the alternating electrical signal generated by the AC signal generator 39 through the second controller 37, thereby reducing the voltage of the alternating electrical signal applied to the electrode plate 13. Or current; when the digital temperature signal corresponding to the temperature detection signal of the temperature detection unit 34 corresponding to the temperature unit 33 of a certain electrode plate 13 is detected to be greater than the preset temperature threshold, the electric field generator 30 controls the power supply switch 40 electrically connected to the electrode plate 13 to disconnect through the second controller 37, so as to stop applying the alternating current signal to the electrode plate 13; or the second controller 37 of the electric field generator 30 or the first controller 21 of the adapter 20 controls all the bidirectional switching switches 55 in a group of bidirectional switching switches 55 electrically connected to the electrode plate 13 to switch from their input terminal 2 to the acquisition terminal 1, that is, all the acquisition terminals 1 of all the bidirectional switching switches 55 in a group of bidirectional switching switches 55 electrically connected to the electrode plate 13 are turned on and all the input terminals 2 are turned off, and the first terminal of the electromagnetic control switch in the rectifier switching module 16 corresponding to each bidirectional switching switch 55 is turned on and the second terminal is turned off, thereby stopping the application of the alternating current signal to the electrode plate 13;Alternatively, when a digital temperature signal corresponding to the temperature detection signal of a temperature detection unit 34 corresponding to an electrode unit 33 on a certain electrode plate 13 is detected to be greater than a preset temperature threshold, the second controller 37 of the electric field generator 30 controls the power supply switch 40 electrically connected to the electrode plate 13 to remain on, and the second controller 37 of the electric field generator 30 or the first controller 21 of the adapter 20 controls a bidirectional switching switch 55 electrically connected to the electrode unit 33 on the electrode plate 13 to switch from its input terminal 2 to its acquisition terminal 1, and the second controller 37 of the electric field generator 30 or the first controller 21 of the adapter 20 simultaneously controls the power supply switch 40 to remain on. The remaining bidirectional switches 55, whose digital temperature signals corresponding to the temperature detection signals of electrode pad 13 do not exceed a preset temperature threshold and are electrically connected to electrode units 33 in different rows from those whose temperature detection signals exceed the preset temperature threshold, remain electrically connected to their respective input terminals 2. This stops applying alternating electrical signals to all electrode units 33 in the row containing electrode units 33 whose digital temperature signals corresponding to the temperature detection signals of electrode pad 13 exceed the preset temperature threshold, while continuing to apply alternating electrical signals to the remaining electrode units 33 in the other rows whose digital temperature signals corresponding to the temperature detection signals of electrode pad 13 do not exceed the preset temperature threshold. This achieves a tumor electric field therapy system 100 based on an alternating electrical signal application control method using temperature detection signals.

[0111] Another tumor electric field therapy system is described below, such as Figure 9 The embodiment shown illustrates a circuit connection diagram between the electrode 13A and the aforementioned adapter 20 in the tumor electric field therapy system. The main concept of this tumor electric field therapy system is... Figure 4 Similar to the tumor electric field therapy system 100 in this embodiment, the electrode pad 13A is electrically connected to the adapter 20 via a first connector 60 with 10 core wires, and also includes a substrate 31A, a plurality of electrode units 33A, 33-1A-33-19A distributed on the substrate 31A and having through holes 331A, a temperature detection unit 34A corresponding to each electrode unit 33A, a plurality of rectifier switching modules 16A disposed on the substrate 31A, and a plurality of dual-purpose signal lines embedded on the substrate 31A. The components 19A, 19-1A to 19-4A, grounding wire 18A, 18-1A to 18-5A, and rectifier ground wire (unlabeled) are included. The rectifier switching module 16 also includes a rectifier bridge 161A, an electromagnetic control switch 162A, and a Zener diode 163A. The difference lies in that each electrode sheet 13A in this tumor electric field therapy system includes 19 electrode units 33A, and the number of electrode units 33A in each row and column group of each electrode sheet 13A is different. For example, the 19 electrode units 33A of each electrode sheet 13A are divided into four row groups and five column groups. Each row group in the first three rows has 5 electrode units 33A, and each row group in the fourth row has 4 electrode units 33A.

[0112] Other aspects of this embodiment, such as the temperature detection method of electrode 13A and the alternating electric signal application control method, are similar to those of the tumor electric field therapy system 100 described above, and will not be repeated here.

[0113] The following describes several other tumor electric field therapy systems 100'', 100''', 100''''. In these examples, each tumor electric field therapy system 100'', 100''', 100'''' includes four electrode pads 13'', 13''', 13'''', adapters 20A and 20B electrically connected to the electrode pads 13'', 13''', 13'''', and an electric field generator 30 electrically connected to the adapters 20A and 20B. Each electrode pad 13'', 13''', 13'''' includes 13 electrode units 33'', 33''', 33'''' respectively. The connection method between the 13 electrode units 33'', 33''', 33'''' differs from that of the electrode units 33'', 33''', 33'''' located at the free end.

[0114] For details, please refer to the following: Figure 10 As shown, in the tumor electric field therapy system 100'', each electrode sheet 13'' includes 13 electrode units 33'', and each electrode sheet 13'' does not have an electrode unit 33'' at a free end. The number of electrode units 33'' in each row and column group of each electrode sheet 13'' varies. Specifically, these 13 electrode units 33'' are arranged in a spatial structure of five rows and five columns. The first and fifth rows each include two electrode units 33'', with the two electrode units 33'' in each row located in the second and fourth columns, respectively. The second to fourth rows each include three electrode units 33'', with the three electrode units 33'' in each row located in the first, third, and fifth columns, respectively. Adjacent electrode units 33'' in each of the above five rows are connected by a connecting strip (unlabeled). In each of the first, third, and fifth columns, adjacent electrode units 33'' are connected by a connecting strip (unnumbered). The electrode unit 33'' in the second column of the first row is connected to the electrode units 33'' in the first and third columns of the second row by a connecting strip (unnumbered); the electrode unit 33'' in the fourth column of the first row is connected to the electrode units 33'' in the third and fifth columns of the second row by a connecting strip (unnumbered); the electrode unit 33'' in the second column of the fifth row is connected to the electrode units 33'' in the first and third columns of the fourth row by a connecting strip (unnumbered); and the electrode unit 33'' in the fourth column of the fifth row is connected to the electrode units 33'' in the third and fifth columns of the fourth row by a connecting strip (unnumbered).

[0115] Continue to refer to Figure 11 As shown, the arrangement of electrode units 33''' in the electrode pads 13''' of the tumor electric field therapy system 100''' is the same as that of electrode units 33''' in the tumor electric field therapy system 100'', the difference being: no connecting strip is provided between the electrode unit 33''' located in the first row, second column and the two electrode units 33''' located in the first row, fourth column and the second row, first column; no connecting strip is provided between the electrode unit 33''' located in the fifth row, fourth column and the two electrode units 33''' located in the fifth row, second column and the fourth row, fifth column; no connecting strip is provided between the two electrode units 33''' located in the second row, fifth column and the third row, fifth column; no connecting strip is provided between the two electrode units 33''' located in the third row, first column and the fourth row, first column. The connecting strips (not shown) of the electrode pads 100''' are arranged in this way to form corresponding open spaces and free ends, facilitating application.

[0116] Continue to refer to Figure 12 As shown, the main concept of the tumor electric field therapy system 100''' is the same as that of the tumor electric field therapy system 100'' described above, except that: the 13 electrode units 33'''' in each electrode sheet 13'''' of this tumor electric field therapy system 100'''' are connected by 18 connecting strips (unlabeled). Specifically, no connecting strips are provided between adjacent electrode units 33'''' in the first and fifth rows; no connecting strips are provided between two electrode units 33'''' in the first and third columns of the second row; and no connecting strips are provided between two electrode units 33'''' in the third and fifth columns of the fourth row. This arrangement of the connecting strips (not shown) of the electrode sheet 100'''' creates corresponding open spaces and free ends, facilitating application.

[0117] The circuit connection diagrams of the electrode plates 13'', 13''', 13'''' and the adapters 20A and 20B in the above-mentioned tumor electric field therapy systems 100'', 100''', 100'''' can be found in the diagrams. Figure 13 , Figure 15 , Figure 16 The circuit connection diagram shown in any of the examples. Specifically, such as... Figure 13The diagram shows the circuit connection between electrode pad 13B and adapter 20A in the tumor electric field therapy system. Each electrode pad 13B has 13 electrode units 33B, 33-1B to 33-13B, divided into three row groups and five column groups. The first two row groups each have five electrode units 33B, and the third row group has three electrode units 33B. Each electrode pad 13B includes three rectifier switching modules 16B, corresponding one-to-one with the three row groups. Each electrode unit 33B also has a through-hole 331B and a corresponding temperature detection unit 34B. The substrate 31B of electrode plate 13B also has embedded dual-purpose signal lines 19B, 19-1B to 19-3B corresponding to the three row groups of electrode unit 33B and electrically connected to the corresponding rectifier switching module 16B; ground lines 18B, 18-1B to 18-5B corresponding to the five column groups of electrode unit 33B; and rectifier ground lines (unlabeled) that ground each rectifier switching module 16B. Each rectifier switching module 16B also includes the aforementioned rectifier bridge 161B, electromagnetic control switch 162B, and Zener diode 163B. Electrode plate 13B is electrically connected to adapter 20A through a first connector 60A with 9 core wires. Adapter 20A is connected to electric field generator 30A through a second connector 70A.

[0118] Combination Figure 14 The diagram shows the internal structure of the adapter 20A adapted to the electrode 13B. The adapter 20A includes a first controller 51A, an ADC unit 52A, a first power module 58A, a first communication unit 56A, four sets of bidirectional switching switches 55A corresponding to the four electrode 13Bs, four sets of control switches 54A, four sets of voltage divider resistors 53A corresponding to the four sets of bidirectional switching switches 55A, and AC power lines 57A corresponding to each of the four electrode 13Bs. Each set of bidirectional switching switches 55A includes three bidirectional switching switches 55A, 55-1A to 55-3A, corresponding to the three rows of each electrode 13B. Each set of control switches 54A includes five control switches 54A, 54-1A to 54-5A, corresponding to the five columns of each electrode 13B. Each group of voltage dividers 53A, R1 to R12 includes three voltage divider resistors R1-R3, R4-R6, R7-R9, and R10-R12, which correspond one-to-one with the bidirectional switching switches 55-1A to 55-3A of the corresponding group.

[0119] Continue to refer to Figure 15The diagram shows the circuit connection between electrode pads 13C and adapter 20B in the tumor electric field therapy system. Each electrode pad 13C contains 13 electrode units 33C, 33-1C to 33-13C, which can be further divided into four row groups and four column groups. The first three row groups each have four electrode units 33C, and the fourth row group has one electrode unit 33C. Electrode pads 13C include four rectifier switching modules 16C, each corresponding to one of the four row groups. Each electrode unit 33C also corresponds to a temperature detection unit 34C. The substrate 31C of electrode sheet 13C also has embedded dual-purpose signal lines 19C, 19-1C to 19-4C corresponding to the four row groups of electrode unit 33C and electrically connected to the corresponding rectifier switching module 16C; ground lines 18C, 18-1C to 18-4C corresponding to the four column groups of electrode unit 33C; and rectifier ground lines (unlabeled) that ground each rectifier switching module 16C. Each rectifier switching module 16C also includes the aforementioned rectifier bridge 161C, electromagnetic control switch 162C, and Zener diode 163C. Electrode sheet 13C is electrically connected to adapter 20B via a first connector 60B with 9 core wires. Adapter 20B is connected to electric field generator 30 via a second connector 70B. Figure 16 As shown, it illustrates the electrode pad 13D and... Figure 15 The circuit connection diagram of the adapter 20B shown illustrates that the 13 electrode units 33D, 33-1D to 33-13D of the electrode plate 13D can be further divided into four row groups and four column groups. The first row group has four electrode units 33D, and each row group from the second to the fourth row group has three electrode units 33D. The electrode plate 13D also includes four rectifier switching modules 16D, each corresponding to one of the four row groups. Each electrode unit 33D also corresponds to a temperature detection unit 34D. The substrate 31D of electrode sheet 13D also embeds dual-purpose signal lines 19D, 19-1D to 19-4D corresponding to the four row groups of electrode unit 33D, ground lines 18D, 18-1D to 18-4D corresponding to the four column groups of electrode unit 33D, and rectifier ground lines (unlabeled) that ground each rectifier switching module 16D. Each rectifier switching module 16D also includes a rectifier bridge 161D, an electromagnetic control switch 162D, and a Zener diode 163D. Electrode sheet 13D is electrically connected to adapter 20B via a first connector 60B with 9 core wires. Adapter 20B is connected to electric field generator 30 via a second connector 70B. Figure 17The diagram shows the internal structure of the adapter 20B adapted to electrode plates 13C and 13D. The adapter 20B includes a first controller 51B, an ADC unit 52B, a first power module 58B, a first communication unit 56B, four sets of bidirectional switching switches 55B and four sets of control switches 54B corresponding to the four electrode plates 13C and 13D respectively, four sets of voltage divider resistors 53B, R1 to R16 corresponding to the four sets of bidirectional switching switches 55B respectively, and AC power lines 57B corresponding to the corresponding electrode plates 13C and 13D. Each set of bidirectional switching switches 55B includes four bidirectional switching switches 55B, 55-1B to 55-4B, corresponding to the four row groups of each electrode plate 13C and 13D respectively. Each set of control switches 54B includes four control switches 54B, 54-1B to 54-4B, corresponding to the four column groups of each electrode plate 13C and 13D respectively. Each group of voltage divider resistors 53B has voltage divider resistors R1-R4, R5-R8, R9-R12, and R13-R16 that correspond one-to-one with the four bidirectional switching switches 55-1B to 55-4B in the corresponding group.

[0120] Other aspects of these embodiments, such as the temperature detection methods for electrode plates 13B, 13C, and 13D, and the alternating electric signal application control methods, are similar to those of the tumor electric field therapy system 100 described above, and will not be repeated here.

[0121] Several other tumor electric field therapy systems are described below. In these examples, each electrode sheet 13E, 13F, and 13G includes 12 electrode units 33E, 33-1E to 33-12E, 33F, 33-1F to 33-12F, 33G, and 33-1G to 33-12G, respectively. The connection between the 12 electrode units 33E, 33-1E to 33-12E, 33F, 33-1F to 33-12F, 33G, and 33-1G to 33-12G and the electrode units 33E, 33F, and 33G at their free ends may differ.

[0122] For each electrode sheet 13E, 13F, 13G, comprising 12 electrode units 33E, 33-1E to 33-12E, 33F, 33-1F to 33-12F, 33G, 33-1G to 33-12G, such as Figure 18 As shown, it illustrates the electrode pad 13E in the tumor electric field therapy system and... Figure 13The circuit connection diagram of the adapter 20A shown illustrates that in this tumor electric field therapy system, each electrode pad 13E has 12 electrode units 33E, 33-1E to 33-12E divided into three row groups and five column groups. The first two row groups each have five electrode units 33E, and the third row group has two electrode units 33E. Each electrode unit 33E also corresponds to a temperature detection unit 34E. Each electrode pad 13E includes three rectifier switching modules 16E, corresponding one-to-one with the three row groups. The rectifier switching module 16E also includes a rectifier bridge 161E, an electromagnetic control switch 162E, and a Zener diode 163E. Each electrode plate 13E's substrate 31E is also embedded with dual-purpose signal lines 19E, 19-1E to 19-3E that correspond one-to-one with the three row groups of the electrode unit 33E and are electrically connected to the corresponding rectifier switching module 16E; grounding lines 18E, 18-1E to 18-5E that correspond one-to-one with the five column groups of the electrode unit 33E; and a rectifier grounding line (unlabeled) that grounds each rectifier switching module 16E. Each set of bidirectional switching switches 55A of the adapter 20A includes three bidirectional switching switches 55A, 55-1A to 55-3A, which correspond one-to-one with the three row groups of each electrode plate 13E. Each set of control switches 54A of the adapter 20A includes five control switches 54A, 54-1A to 54-4A, which correspond one-to-one with the five column groups of each electrode plate 13E. Each group of voltage divider resistors 53A in adapter 20A includes three voltage divider resistors R1-R3, R4-R6, R7-R9, and R10-R12, which correspond one-to-one with the three bidirectional switching switches 55A in the corresponding group. Each electrode plate 13E is connected to adapter 20A via a first connector 60A with nine-core wires.

[0123] like Figure 19 The diagram shows the circuit connection between electrode 13F and adapter 20C in the tumor electric field therapy system. The 13 electrode units 33F, 33-1F to 33-12F can be further divided into three row groups and four column groups, with each row group containing four electrode units 33F. Each electrode unit 33F also corresponds to a temperature detection unit 34F. Each electrode 13F includes three rectifier switching modules 16F, corresponding one-to-one with the three row groups. Each rectifier switching module 16F also includes a rectifier bridge 161F, an electromagnetic control switch 162F, and a Zener diode 163F. Each electrode sheet 13F also has embedded dual-purpose signal lines 19F, 19-1F to 19-3F corresponding to the three row groups of the electrode unit 33F, ground lines 18F, 18-1F to 18-4F corresponding to the four column groups of the electrode unit 33F, and rectifier ground lines (unlabeled) that ground each rectifier switching module 16F. See Figure 20The diagram shows the internal structure of the adapter 20C adapted to the electrode plates 13F. The adapter 20C includes a first controller 51C, an ADC unit 52C, a first power module 58C, a first communication unit 56C, four sets of bidirectional switching switches 55C corresponding to the four electrode plates 13F, four sets of control switches 54C, four sets of voltage divider resistors 53C, R1-R3, R4-R6, R7-R9, and R10-R12 corresponding to the four sets of bidirectional switching switches 55C, and alternating power lines 57C electrically connected to the corresponding electrode plates 13F. Each set of bidirectional switching switches 55C includes three bidirectional switching switches 55C, 55-1C to 55-3C, corresponding to the three row groups of each electrode plate 13F. Each set of control switches 54C includes four control switches 54C, 54-1C to 54-4C, corresponding to the four column groups of each electrode plate 13F. Each electrode 13F is electrically connected to the adapter 20C via a corresponding first connector 60C with 8 core wires. The adapter 20C is electrically connected to the electric field generators 30 and 30A via a second connector 70C.

[0124] like Figure 21 The diagram shows a schematic of the circuit connection between the electrode pad 13G and the adapter 20D in the tumor electric field therapy system. The 13 electrode units 33G, 33-1G to 33-12G can be further divided into four row groups and three column groups, with each row group containing three electrode units 33G. The electrode pad 13G includes four rectifier switching modules 16G, each corresponding to one of the four row groups. Each electrode unit 33G has a corresponding temperature detection unit 34G. The substrate 31G of the electrode pad 13G also has embedded dual-purpose signal lines 19-1G to 19-4G, each corresponding to one of the four row groups of the electrode unit 33G and electrically connected to the corresponding rectifier switching module 16G; grounding lines 18G, 18-1G to 18-3G, each corresponding to one of the three column groups of the electrode unit 33G; and rectifier ground lines (unlabeled) that ground each rectifier switching module 16G. Each rectifier switching module 16G also includes a rectifier bridge 161G, an electromagnetic control switch 162G, and a Zener diode 163G. Each electrode plate 13G is connected to the adapter 20D via a first connector 60D with 8-core wires. See also Figure 22The diagram shows the internal structure of the adapter 20D adapted to the electrode plates 13G. The adapter 20D includes a first controller 51D, an ADC unit 52D, a first power module 58D, a first communication unit 56D, four sets of bidirectional switching switches 55D corresponding to the four electrode plates 13G, four sets of control switches 54D, four sets of voltage-delay resistors 53D corresponding to each of the four sets of bidirectional switching switches 55D, and four alternating power lines 57D corresponding to each of the four electrode plates 13G. Each set of bidirectional switching switches 55D includes four bidirectional switching switches 55D, 55-1D to 55-4D, corresponding to the four row groups of each electrode plate 13G. Each set of control switches 54D includes three control switches 54D, 54-1D to 54-3D, corresponding to the three column groups of each electrode plate 13D. Each voltage divider resistor 53D has four voltage divider resistors R1-R4, R5-R8, R9-R12, and R13-R16. Adapter 20D is connected to electric field generator 30 via second connector 70D.

[0125] Other aspects of these embodiments, such as the temperature detection methods for electrode plates 13E, 13F, and 13G, and the alternating electrical signal application control methods, are similar to those of the tumor electric field therapy system 100 described above, and will not be repeated here.

[0126] Another tumor electric field therapy system 100 is described below. In this example, each electrode sheet 13 includes nine electrode units 33, and the connection between the nine electrode units 33 and the electrode units 33 at their free ends are as follows: Figure 23 As shown.

[0127] The circuit connection diagrams of electrode 13' and adapters 20C and 20E in the aforementioned tumor electric field therapy system 100 can be referred to respectively. Figure 24 , Figure 25 The circuit connection diagram is shown in the image. Specifically, for example... Figure 24 As shown, it illustrates the electrode pad 13H in this tumor electric field therapy system and... Figure 20The circuit connection diagram of the adapter 20C shown illustrates that in this tumor electric field therapy system, the nine electrode units 33H, 33-1H to 33-9H of each electrode pad 13H are divided into three row groups and four column groups. Each row group in the first two rows has four electrode units 33H, and each row group in the third row has one electrode unit 33H. The electrode pad 13H includes three rectifier switching modules 16H, each corresponding to one of the three row groups. The connection plate 31H of the electrode pad 13H is embedded with dual-purpose signal lines 19H, 19-1H to 19-3H that correspond one-to-one with the three row groups of the electrode unit 33H and are electrically connected to the corresponding rectifier switching modules 16H; grounding lines 18H, 18-1H to 18-4H that correspond one-to-one with the four column groups of the electrode unit 33H; and a rectifier ground line (unlabeled) that grounds all rectifier switching modules 16H. Each rectifier switching module 16H also includes a rectifier bridge 161H, an electromagnetic control switch 162H, and a Zener diode 163H. Each electrode plate 13H is electrically connected to the adapter 20C via a first connector 60C with 8-core wires. Each set of bidirectional switching switches 55C of the adapter 20C includes three bidirectional switching switches 55C, 55-1C to 55-3C, which correspond one-to-one with the three row groups of each electrode plate 13H. Each set of control switches 54C includes four control switches 54C, 54-1C to 54-4C, which correspond one-to-one with the four column groups of each electrode plate 13H.

[0128] like Figure 25 The illustrated embodiment shows a schematic diagram of the circuit connection between the electrode pad 13I and the adapter 20E in the tumor electric field therapy system. Each electrode pad 13I in the tumor electric field therapy system has nine electrode units 33I, 33-1I to 33-9I, which can be further divided into three row groups and three column groups. Each row group has three electrode units 33I. Each electrode unit 33I corresponds to a temperature detection unit 34I. The electrode pad 13I includes three rectifier switching modules 16I, each corresponding to one of the three row groups. The substrate 31I of the electrode pad 13I is embedded with dual-purpose signal lines 19, 19-1I to 19-3I, each corresponding to one of the three row groups of the electrode unit 33I and electrically connected to the corresponding rectifier switching module 16I; grounding lines 18I, 18-1I to 18-3I, each corresponding to one of the three column groups of the electrode unit 33I; and a rectifier ground line (unlabeled) that grounds all rectifier switching modules 16I. Each rectifier switching module 16I also includes a rectifier bridge 161I, an electromagnetic control switch 162I, and a Zener diode 163I. Each electrode plate 13I is electrically connected to the adapter 20E via a first connector 60E with 7-core wires. See also Figure 26The adapter 20E includes a first controller 51E, an ADC unit 52E, a first power module 58E, a first communication unit 56E, four sets of bidirectional switching switches 55E corresponding to the four electrode plates 13I, four sets of control switches 54E, four sets of voltage-delay resistors 53E, R1-R3, R4-R6, R7-R9, and R10-R12 corresponding to the four sets of bidirectional switching switches 55E, and four alternating power lines 57E corresponding to the four electrode plates 13I. Each set of bidirectional switching switches 55E includes three bidirectional switching switches 55-1E to 55-3E, corresponding to the three row groups of each electrode plate 13I. Each set of control switches 54E includes three control switches 54-1E to 54-3E, corresponding to the three column groups of each electrode plate 13I. Each group of voltage divider resistors 53E has three voltage divider resistors R1-R3, R4-R6, R7-R9, and R10-R12 that correspond one-to-one with the bidirectional switching switches 55-1E to 55-3E of the corresponding group.

[0129] Other aspects of these embodiments, such as the temperature detection method for electrode plates 13H and 13I and the alternating electric signal application control method, are similar to those of the tumor electric field therapy system 100 described above, and will not be repeated here.

[0130] This application provides an electrode temperature detection method, applied to the aforementioned tumor electric field therapy systems. The following example uses a tumor electric field therapy system 100. Figure 27 As shown, it includes the following steps:

[0131] Step 210: Control the bidirectional switching unit so that at least one row group in the corresponding electrode sheet 13 is connected to the corresponding temperature sampling point via the dual-purpose signal line 19, wherein the first and third ends of the rectifier switching module 16 corresponding to the row group in the corresponding electrode sheet 13 are connected.

[0132] Specifically, the power supply switch 40, the bidirectional switching switch 55 which is electrically connected to each electrode unit 33 of the electrode sheet 13, and the rectifier switching module 16 are controlled to disconnect the alternating electrical signal applied to each electrode unit 33 of the electrode sheet 13, and at the same time connect the DC electrical signal applied to the signal terminal 34-1 of the temperature detection unit 34 of each electrode unit 33 of the electrode sheet 13.

[0133] Furthermore, the bidirectional switching switch 55 electrically connected to each electrode unit 33 of the electrode plate 13 is switched from its end connected to the alternating current signal to its end connected to the direct current signal. That is, the bidirectional switching switch 55 electrically connected to the electrode plate 13 is switched from its input terminal 2 to its acquisition terminal 1. At the same time, the electromagnetic control switch 162 in the rectifier switching module 16 is also switched from the state where its third terminal is connected to its second terminal to the state where its third terminal is connected to its first terminal. Alternatively, the bidirectional switching switch 55 electrically connected to each electrode unit 33 of the electrode plate 13 is switched from the on state to the off state and the signal terminal 34-1 of the temperature detection unit 34 of each electrode unit 33 of the electrode plate 13 is switched from the off state to the on state.

[0134] Step 220: Control the control switch 54 corresponding to each column group so as to sample the analog temperature signal of the corresponding electrode unit 33 based on the corresponding temperature sampling point.

[0135] Specifically, the control switch 54, which is electrically connected to the ground terminal 34-2 of the temperature detection unit 34 of each electrode unit 33 of the electrode sheet 13, is turned on in a time-sequential manner to obtain the temperature detection signal of the temperature detection unit 34 of each electrode unit 33 of the electrode sheet 13.

[0136] In some embodiments, when the dual-use signal line 19 corresponding to each row group is connected to the corresponding temperature sampling point, the control switch 54 corresponding to each column group is controlled, including: controlling the control switch 54 corresponding to each column group to close sequentially, so as to sample the analog temperature signal of each electrode unit 33 in each row group respectively.

[0137] The electrode temperature detection method of this application can quickly and accurately obtain the temperature of all electrode units of the electrode sheet; and can determine whether the temperature detection units of the electrode sheet are faulty, abnormal, or whether the electrode sheet is qualified and needs to be replaced based on the obtained temperature detection signals of all temperature detection units of the electrode sheet; it can also determine whether each electrode unit of the electrode sheet is overheated based on the obtained temperature detection signals of all temperature detection units of the electrode sheet when all temperature detection units of the electrode sheet are normal, and then control the alternating electrical signal applied to the electrode sheet or each electrode unit of the electrode sheet; it can also identify the electrode sheet type when the temperature detection signals of each temperature detection unit of the electrode sheet are normal.

[0138] This application provides a method for quality inspection of electrode pads, applied to an electrode pad quality inspection system. Taking a tumor electric field therapy system 100 as an example, the electrode pad quality inspection system includes the aforementioned tumor electric field therapy system 100 and a host computer (not shown). The host computer (not shown) and the tumor electric field therapy system 100 are communicatively connected. Specifically, the host computer (not shown) is electrically connected to an adapter 20. The adapter 20 is used to sample the analog temperature signal detected by each temperature detection unit 34 in the electrode pad 13, determine the test code array of the electrode pad 30 based on the sampled temperature signal detected by each temperature detection unit 34, and send the test code array to the host computer (not shown) so that the host computer (not shown) can compare the test code array with the standard code array when the tested electrode pad 13 is qualified, and determine whether the electrode pad 13 is qualified.

[0139] Specifically, refer to Figure 28 As shown, the temperature detection method for the electrode sheet includes the following steps:

[0140] S310, acquire the temperature signal detected by each temperature detection unit 34 in the electrode sheet 13.

[0141] S320, determine the test code array B of electrode sheet 13 based on the analog temperature signal detected by each temperature detection unit 34.

[0142] Specifically, the state of each temperature detection unit 34 is determined based on the analog temperature signal detected by each temperature detection unit 34, and a corresponding code is assigned to determine the test code array of the electrode plate 13. When the ADC unit 52 obtains several AD sample values, it also sends several AD sample values ​​to the first controller 51, so that the first controller 51 can determine the test code array of the electrode plate 13 based on the several AD sample values, and send it to the host computer (not shown) through the first communication unit 56.

[0143] For example, when the AD sample value obtained by ADC unit 52 is greater than 0.5V and less than 3V, the corresponding code is the first code, such as 1; when the AD sample value obtained by ADC unit 52 is less than or equal to 0.3V, the corresponding code is the third code, such as 0; when the AD sample value obtained by ADC unit 52 is greater than or equal to 3.1V, the corresponding code is the second code, such as 2.

[0144] Therefore, in the corresponding detection positions numbered 1 to 20 of electrode 13, if the temperature sensor 35 is short-circuited, the corresponding code is the third code, such as 0; if the temperature sensor 35 is normal, the corresponding code is the first code, such as 1; if there is no temperature sensor 35 or the temperature sensor 35 is open-circuited, the corresponding code is the second code, such as 2.

[0145] Taking an electrode plate 13 with 20 electrode units 33 as an example, each electrode unit 33 corresponds to a temperature sensor 35. That is, the corresponding detection positions of electrode plate 13 numbered 1 to 20 all have temperature sensors 35, and the code for each is 1. Combining the 20 codes yields a 20-bit standard code array: 11111 11111 11111 11111. When the temperature sensor 35 is open-circuited, assuming the temperature sensor 35 at detection position 1 is open-circuited, the resulting 20-bit code array is 2111111111 11111 11111. When the temperature sensor 35 is short-circuited, assuming the temperature sensor 35 at detection position 1 is short-circuited, the resulting 20-bit code array is 01111 11111 11111 11111.

[0146] The test code array is compared with the standard code array to determine whether the electrode sheet 13 is qualified. The standard code includes at least the first code of the first code and the second code. The first code is used to indicate that the temperature detection unit 34 is in a normal state, and the second code is used to indicate that the temperature detection unit 34 is in an open circuit state or an unset state.

[0147] Optionally, the simulated temperature signal is represented by a voltage value. The test code array B of the electrode plate 13 is determined based on the simulated temperature signal detected by each temperature detection unit 34, including: determining the voltage range in which the voltage value is located; determining the code corresponding to the corresponding temperature detection unit 34 based on the voltage range in which the voltage value is located, wherein different voltage ranges in which the voltage value is located correspond to different codes (0, 1 or 2); and generating the test code array B of the corresponding electrode plate 13 based on the code (0, 1 or 2) corresponding to each temperature detection unit 34.

[0148] S330, compare the test code array B with the standard code array A to determine whether the electrode sheet 13 is qualified.

[0149] Optionally, the standard encoding array A includes at least a first encoding, and may also include a second encoding. The test encoding array B includes at least one of the first, second, and third encodings. The first encoding indicates that the temperature detection unit is in a normal state, the second encoding indicates that the temperature detection unit is in an open-circuit state or an unset state, and the third encoding indicates that the temperature detection unit is in a short-circuit state. In this embodiment, the first encoding is "1", the second encoding is "2", and the third encoding is "0".

[0150] Optionally, the electrode sheet quality inspection system may also include an alarm and a display. The alarm is communicatively connected to a host computer (not shown), and the display is also communicatively connected to the host computer. After comparing the test code array B with the standard code array A to determine whether the electrode sheet 13 is qualified, the method further includes displaying the test code array B, the standard code array A, and whether the electrode sheet 13 is qualified on the display. Furthermore, if the electrode sheet 13 is unqualified, an alarm can be triggered to issue a warning message.

[0151] Optionally, before comparing the test code array B with the standard code array A, the method further includes: controlling the adapter 20 to operate when the qualified electrode 13 is connected to the adapter 20, and determining the standard code array A based on the analog temperature signal detected by each temperature detection unit 34 at present.

[0152] Taking electrode plate 13A with 19 electrode units 33A as an example, each electrode unit 33A corresponds to a temperature sensor 35A. That is, the corresponding detection positions of electrode plate 13A numbered 1 to 19 all have temperature sensors 35A, and the code for each is 1. Combining the 19 codes yields a 19-bit standard code array: 11111 11111 11111 1111. When temperature sensor 35A is open-circuited, assuming the temperature sensor 35A at detection position number 1 is open-circuited, the resulting 19-bit code array is 2111111111 11111 1111. When temperature sensor 35A is short-circuited, assuming the temperature sensor 35A at detection position number 1 is short-circuited, the resulting 19-bit code array is 01111 11111 11111 1111. By comparing the test code array with the standard code array, the pass / fail status of electrode plate 13A can be determined.

[0153] Taking electrode plate 13B with 13 electrode units 33B as an example, each electrode unit 33B corresponds to a temperature sensor 35B. That is, the corresponding detection positions of electrode plate 13B numbered 1 to 13 all have temperature sensors 35B, and the code for each is 1. Combining the 13 codes yields a 13-bit standard code array: 11111 11111 111. When temperature sensor 35B is open-circuited, assuming the temperature sensor 35B at detection position number 1 is open-circuited, the resulting 13-bit code array is 2111111111111. When temperature sensor 35B is short-circuited, assuming the temperature sensor 35B at detection position number 1 is short-circuited, the resulting 13-bit code array is 01111 11111 111. By comparing the test code array with the standard code array, the conformity of electrode plate 13B can be determined.

[0154] Similarly, the above quality testing methods can also be applied to electrode sheets 13E, 13F, 13G with 12 electrode units 33E, 33F, 33G or electrode sheets 13H, 13I with 9 electrode units 33H, 33I, and will not be elaborated further here.

[0155] By using the electrode sheet quality inspection method, during the production process of electrode sheet 13, it is possible to monitor whether each temperature detection unit 34 of electrode sheet 13 is properly connected, thereby determining whether electrode sheet 13 is qualified, so as to screen out unqualified electrode sheets 13, thereby ensuring that each temperature detection unit 34 of the electrode sheet 13 leaving the factory can perform normal testing.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tumor electric field therapy system, characterized in that, include: At least one pair of electrode plates, each electrode plate including multiple electrode units and multiple temperature detection units, each electrode unit capable of applying an alternating electrical signal, and each temperature detection unit corresponding to one electrode unit to detect the temperature at the corresponding electrode unit; wherein, the multiple electrode units are configured in multiple row groups and multiple column groups in circuit connection, the electrode units in each row group are connected in parallel; the temperature detection units in each row group are connected in series; the temperature detection units in each column group are connected to a ground pin through a corresponding control switch; and the electrode units and temperature detection units in each row group are connected to a bidirectional switching unit through a corresponding dual-purpose signal line; wherein, the electrode units and temperature detection units located in the same row group are connected to the bidirectional switching unit through the same dual-purpose signal line, and the electrode units and temperature detection units located in different row groups are connected to the bidirectional switching unit through different dual-purpose signal lines; the temperature detection units located in the same column group are connected to a ground pin through the same control switch, and the temperature detection units located in different column groups are connected to a ground pin through different control switches; The bidirectional switching unit is configured to switch the dual-purpose signal line to either a temperature sampling point or an alternating power supply line. When the dual-purpose signal line is connected to the temperature sampling point, the switching state of the control switch is configured so that the analog temperature signal detected by one or more combined temperature detection units is sampled based on the temperature sampling point. When the dual-purpose signal line is connected to the alternating power line, at least one electrode unit of the row group is subjected to the alternating electrical signal based on the alternating power line.

2. The tumor electric field therapy system according to claim 1, characterized in that, Each electrode sheet further includes multiple rectification and switching modules, each rectification and switching module corresponding to one of the multiple row groups of the electrode unit. Each temperature detection unit in each row group is connected in series and then connected to the first end of the corresponding rectifier switching module; Each electrode unit in each row group is connected in parallel and then connected to the second end of the corresponding rectifier switching module; The third terminal of the rectifier switching module corresponding to each row group is connected to the dual-purpose signal line corresponding to each row group.

3. The tumor electric field therapy system according to claim 2, characterized in that, The bidirectional switching unit includes a plurality of bidirectional switching switches, each corresponding one-to-one with one of the rows of the electrode unit, wherein, The first terminal of each bidirectional switching switch is connected to the temperature sampling point of the corresponding row group; The second terminal of each of the bidirectional switching switches is simultaneously connected to the alternating power supply line; The third terminal of each of the bidirectional switching switches is connected to the dual-purpose signal line corresponding to the row group.

4. The tumor electric field therapy system according to claim 3, characterized in that, Each of the rectifier switching modules includes an electromagnetic control switch, and the electromagnetic control switch corresponding to each row group is linked with the bidirectional switching switch corresponding to that row group; wherein... When the bidirectional switching switch corresponding to each row group switches to the state where its third terminal is connected to its first terminal, the electromagnetic control switch corresponding to the row group switches to the state where the third terminal of the corresponding rectifier switching module is connected to its first terminal, so that the analog temperature signal detected by one or more temperature detection units corresponding to the combination is sampled according to the switching state of the control switch. When the bidirectional switching switch corresponding to each row group switches to the state where its third terminal is connected to its second terminal, the electromagnetic control switch corresponding to the row group switches to the state where the third terminal of the corresponding rectifier switching module is connected to its second terminal, so that the electrode unit of each row group is simultaneously applied with the alternating electrical signal based on the alternating power line.

5. The tumor electric field therapy system according to claim 4, characterized in that, Each of the rectifier switching modules further includes a rectifier bridge and a Zener diode. The first end of the rectifier bridge is connected to the dual-purpose signal line corresponding to the corresponding row group electrode unit and the third end of the electromagnetic control switch. A Zener diode is connected in series between the second end and the fourth end of the rectifier bridge. The third end of the rectifier bridge is connected to the ground pin. The anode of the Zener diode is connected to the fourth end of the rectifier bridge, and the cathode of the Zener diode is connected to the second end of the rectifier bridge. Each electromagnetic control switch includes a first end, a second end, and a third end. The first end of the electromagnetic control switch constitutes the first end of the rectifier switching module, the second end of the electromagnetic control switch constitutes the second end of the rectifier switching module, and the third end of the electromagnetic control switch, after being connected to the first end of the rectifier bridge, constitutes the third end of the rectifier switching module.

6. The tumor electric field therapy system according to claim 1, characterized in that, Each temperature detection unit also includes a temperature sensor and a diode connected in series with the temperature sensor. The anode of each diode is connected to the ground terminal of the corresponding temperature sensor. The cathodes of the diodes in each group are connected together and then connected to the ground pin through a corresponding control switch.

7. The tumor electric field therapy system according to claim 1, characterized in that, Each of the temperature sampling points is connected to a DC power supply via a corresponding voltage divider resistor.

8. The tumor electric field therapy system according to claim 7, characterized in that, It also includes an adapter, wherein the control switch, the bidirectional switching unit and the voltage divider resistor are respectively disposed in the adapter.

9. The tumor electric field therapy system according to claim 8, characterized in that, The adapter includes a first controller and an ADC unit. The ADC unit is connected to each of the temperature sampling points to sample the analog temperature signal through each temperature sampling point. The first controller is connected to the ADC unit to determine the temperature at the corresponding electrode unit based on the digital temperature signal output by the ADC unit.

10. The tumor electric field therapy system according to claim 9, characterized in that, The first controller is also configured to configure the on / off state of the control switch.

11. The tumor electric field therapy system according to claim 9, characterized in that, The first controller is also configured to configure the switching state of the bidirectional switching switch in the bidirectional switching unit.

12. The tumor electric field therapy system according to claim 3, characterized in that, It also includes an electric field generator configured to output the alternating electrical signal through the alternating power line.

13. The tumor electric field therapy system according to claim 12, characterized in that, The electric field generator includes a second controller and an AC signal generator. The second controller is connected to the AC signal generator and is configured to control the AC signal generator to adjust the intensity of the alternating electrical signal output by the alternating power line.

14. The tumor electric field therapy system according to claim 13, characterized in that, The electric field generator is also configured to acquire the temperature at each electrode unit and control the AC signal generator based on the temperature at each electrode unit.

15. The tumor electric field therapy system according to claim 13, characterized in that, The electric field generator also includes a power supply switch, which is disposed between the AC signal generator and the bidirectional switching unit. Under the configuration of the second controller, the power supply switch controls whether the AC signal generator outputs the alternating electrical signal through the alternating power supply line.

16. The tumor electric field therapy system according to claim 13, characterized in that, The second controller is also configured to configure the on / off state of the control switch.

17. The tumor electric field therapy system according to claim 13, characterized in that, The second controller is also configured to configure the switching state of the bidirectional switching switch in the bidirectional switching unit.

18. An electrode sheet, characterized in that, The tumor electric field therapy system according to any one of claims 1-17, the tumor electric field therapy system comprising a bidirectional switching unit, wherein the electrode pads comprise: substrate; Multiple electrode units and multiple temperature detection units are disposed on the substrate. Each electrode unit can be subjected to an alternating electrical signal, and each temperature detection unit is disposed corresponding to one electrode unit to detect the temperature at the corresponding electrode unit. The electrode units are configured in multiple rows and columns, with each electrode unit in each row connected in parallel and each temperature detection unit in each row connected in series. Each temperature detection unit in each column is connected to a grounding pin via a corresponding control switch. Furthermore, each electrode unit and each temperature detection unit in each row is connected to a bidirectional switching unit via a corresponding dual-purpose signal line. Electrode units and temperature detection units within the same row are connected to the bidirectional switching unit via the same dual-purpose signal line, while electrode units and temperature detection units in different row groups are connected to the bidirectional switching unit via different dual-purpose signal lines. Temperature detection units within the same column are connected to a grounding pin via the same control switch, while temperature detection units in different column groups are connected to a grounding pin via different control switches. The dual-purpose signal line is configured to connect to either a temperature sampling point or an alternating power supply line. When the dual-purpose signal line is connected to the temperature sampling point, the switching state of the control switch is configured so that the analog temperature signal detected by one or more combined temperature detection units is sampled based on the temperature sampling point. When the dual-purpose signal line is connected to the alternating power line, at least one electrode unit of the row group is subjected to the alternating electrical signal based on the alternating power line.

19. A method for detecting the temperature of an electrode sheet, characterized in that, The method, applied to the tumor electric field therapy system according to any one of claims 1-17, comprises: The bidirectional switching unit is controlled to connect the dual-purpose signal line corresponding to any row group in the corresponding electrode sheet to the corresponding temperature sampling point. The control switch corresponding to each column group is controlled so as to sample the analog temperature signal of the corresponding electrode unit based on the corresponding temperature sampling point.

20. The method according to claim 19, characterized in that, With the dual-purpose signal lines corresponding to each row group connected to the corresponding temperature sampling points, the control switch corresponding to each column group is controlled, including: The control switches corresponding to each of the column groups are closed sequentially to sample the analog temperature signal of each electrode unit in each row group.

21. A method for quality inspection of electrode sheets, characterized in that, A quality inspection system for electrode pads, the quality inspection system for electrode pads comprising a tumor electric field therapy system according to any one of claims 1-17 and a host computer, wherein the host computer and the tumor electric field therapy system are communicatively connected, the method comprising: Acquire the analog temperature signal detected by each temperature detection unit in the electrode sheet; The state of each temperature detection unit is determined based on the analog temperature signal detected by each temperature detection unit, and a corresponding code is assigned to determine the test code array of the electrode sheet; The test code array is compared with the standard code array to determine whether the electrode sheet is qualified. The standard code includes at least the first code of the first code and the second code. The first code is used to indicate that the temperature detection unit is in a normal state, and the second code is used to indicate that the temperature detection unit is in an open circuit state or an unset state.

22. The method for quality inspection of electrode sheets according to claim 21, characterized in that, The test code array includes at least one of a first code, a second code, and a third code, wherein the third code is used to indicate that the temperature detection unit is in a short-circuit state.

23. The method for quality inspection of electrode sheets according to claim 21, characterized in that, The simulated temperature signal is characterized by a voltage value. A test code array for the electrode sheet is determined based on the simulated temperature signal detected by each temperature detection unit, including: Determine the voltage range in which the voltage value falls; The code corresponding to the temperature detection unit is determined based on the voltage range in which the voltage value is located, wherein different voltage ranges correspond to different codes; A test code array for the corresponding electrode sheet is generated based on the code corresponding to each temperature detection unit.

24. The method for quality inspection of electrode sheets according to claim 23, characterized in that, Before comparing the test encoded array with the standard encoded array, the method further includes: When a qualified electrode is connected to the adapter of the tumor electric field therapy system, the adapter is controlled to operate, and the standard encoding array is determined based on the analog temperature signal detected by each of the temperature detection units.

25. A quality inspection system for electrode sheets, characterized in that, The system includes a tumor electric field therapy system as described in any one of claims 1-17, a host computer, an alarm, and a display, wherein the host computer is communicatively connected to the tumor electric field therapy system, the alarm is communicatively connected to the host computer, the display is communicatively connected to the host computer, and the electrode quality inspection system is used to perform the electrode quality inspection method according to any one of claims 21-24.

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