Tumor electric field therapy system, tumor therapy equipment, and electrode sheet fault detection method

Abstract

The present invention discloses a tumor electric field therapy system, tumor therapy equipment, and electrode sheet fault detection method. The system includes: at least one electrode sheet, each electrode sheet including multiple electrode sheet units and multiple temperature detection units, each temperature detection unit detecting the temperature at a corresponding electrode sheet unit, each temperature detection unit including a temperature sensor and an isolation subunit, the temperature sensor being used to detect the temperature at the corresponding electrode sheet unit, the isolation subunit being used to isolate the influence of other temperature sensors on the corresponding temperature sensor, and vice versa; an adapter and an electric field generator, the electric field generator being used to generate an alternating electrical signal and transmit the alternating electrical signal to each electrode sheet via the adapter. Thus, mutual influence between temperature sensors can be avoided during temperature detection.

Description

[0001] This application is a divisional application of the invention patent application with the application date of December 30, 2022, application number 202211722151.9, and invention name "Tumor electric field therapy system, tumor treatment equipment and electrode fault detection method". Technical Field

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

[0003] At present, the tumor electric field therapy system mainly includes an electric field generator, an adapter electrically connected to the electric field generator, and multiple pairs of electrodes electrically connected to the electric field generator through the adapter. The electric field generator transmits the alternating electric signal for tumor electric field therapy to each electrode through the adapter, and then applies an alternating electric field to the patient's tumor site through the electrode to perform tumor electric field therapy. Since the alternating electric field applied to the patient will accumulate heat at the corresponding position where the electrode is attached to the skin, in order to avoid low-temperature burns of the skin, a temperature sensor needs to be configured at each electrode unit to monitor the skin surface temperature at each electrode unit. However, in the process of using electrode sheets for tumor treatment, it is inevitable that there will be an abnormal problem in which individual temperature sensors on a very small number of electrode sheets fail after a period of use. If the number of temperature sensors on the electrode sheets fails is too large, it is easy to cause the risk of low-temperature burns to the patient. Summary of the Invention

[0004] The present invention aims to at least partially address one of the technical problems in the related art. To this end, a first object of the present invention is to provide a tumor therapy field system that can monitor electrode damage during use, allowing users to replace the electrodes promptly and avoiding or reducing the risk of low-temperature burns.

[0005] The second object of the present invention is to provide an electrode sheet for a tumor electric field therapy system.

[0006] The third object of the present invention is to provide a tumor treatment device.

[0007] A fourth object of the present invention is to provide a method for detecting electrode sheet failure.

[0008] A fifth object of the present invention is to provide a computer-readable storage medium.

[0009] A sixth object of the present invention is to provide an adapter for a tumor electric field therapy system.

[0010] The seventh object of the present invention is to provide an electric field generator for a tumor electric field treatment system.

[0011] To achieve the above-mentioned purpose, the present invention provides a tumor electric field therapy system, comprising: at least one pair of electrode sheets, each of the electrode sheets comprising a plurality of electrode sheet units and a plurality of temperature detection units, each of the temperature detection units being arranged corresponding to one electrode sheet unit to detect the temperature at the corresponding electrode sheet unit, each of the temperature detection units comprising a temperature sensor and an isolation subunit, the temperature sensor being used to detect the temperature at the corresponding electrode sheet unit, the isolation subunit being used to isolate the influence of other temperature sensors on the corresponding temperature sensor and the influence of the corresponding temperature sensor on other temperature sensors; an adapter and an electric field generator, the electric field generator being used to generate an alternating electric signal, and transmitting the alternating electric signal to each of the electrode sheets through the adapter to generate an alternating electric field through the electrode sheets.

[0012] Furthermore, the temperature sensor has a signal terminal and a ground terminal, the isolation sub-unit includes a diode, the diode has an anode and a cathode, the anode of the diode is connected to the ground terminal of the temperature sensor, the cathode of the diode serves as the ground terminal of the temperature detection unit, and the signal terminal of the temperature sensor serves as the signal terminal of the temperature detection unit.

[0013] Furthermore, the adapter is used to periodically sample the analog temperature signal detected by each temperature detection unit in the electrode sheet, and the adapter or the electric field generator determines the detection coding array of the electrode sheet based on the sampled analog temperature signal detected by each temperature detection unit, and compares the detection coding array with a preset standard coding array to identify the fault condition of each temperature detection unit in the electrode sheet.

[0014] According to the tumor electric field therapy system of an embodiment of the present invention, the analog temperature signal detected by each temperature detection unit in the electrode sheet is sampled through an adapter, and the isolation subunits provided according to the temperature detection units avoid mutual influence between the temperature detection units, thereby ensuring that the signals detected by the temperature detection units are accurate and correct, and the detection coding array of the electrode sheet is determined based on the sampled analog temperature signal detected by each temperature detection unit, and the detection coding array is compared with the preset standard coding array to identify the fault condition of each temperature detection unit in the electrode sheet, thereby being able to monitor whether the electrode sheet is damaged during use, so that the user can replace the electrode sheet in time to avoid or reduce the risk of low-temperature burns in patients.

[0015] Furthermore, the adapter includes a controller and an ADC sampling unit, the ADC sampling unit is connected to the controller, and the ADC sampling unit is used to sample the analog temperature signal detected by each temperature detection unit, obtain a number of AD sampling values, and send the number of AD sampling values to the controller.

[0016] Furthermore, the controller determines the detection code array of the electrode sheet according to the plurality of AD sampling values, and compares the detection code array with the preset standard code array to identify the fault condition of each temperature detection unit in the electrode sheet.

[0017] Furthermore, the controller is also used to determine the number of faulty temperature detection units in the electrode sheet when comparing the detection coding array with a preset standard coding array, and determine whether the electrode sheet needs to be replaced based on the number.

[0018] Furthermore, the adapter also includes a reminder unit, which is connected to the controller, wherein the controller is also used to control the reminder unit to issue a first reminder message and instruct the electric field generator to continue working when there is a faulty temperature detection unit in the electrode sheet.

[0019] Furthermore, the controller is also used to control the reminder unit to issue a second reminder message and instruct the electric field generator to stop working when it is determined that the electrode sheet needs to be replaced.

[0020] Furthermore, the controller is also used to determine the temperature of the corresponding electrode sheet unit based on the several AD sampling values, and when it is identified that the electrode sheet is overheated based on the temperature of the corresponding electrode sheet unit, it instructs the electric field generator to reduce the amplitude of the alternating electric signal or stop outputting the alternating electric signal.

[0021] Furthermore, the adapter also includes a serial communication unit, which is connected to the controller, wherein the controller is also used to send the multiple AD sampling values to the electric field generator through the serial communication unit, so that the electric field generator determines the detection coding array of the electrode sheet based on the multiple AD sampling values, and compares the detection coding array with a preset standard coding array to identify the fault condition of each temperature detection unit in the electrode sheet.

[0022] Furthermore, the electric field generator is also used to determine the number of faulty temperature detection units in the electrode sheet when comparing the detection coding array with a preset standard coding array, and to determine whether the electrode sheet needs to be replaced based on the number.

[0023] Furthermore, the electric field generator is also used to issue a first reminder message and continue to output the alternating electric signal when a faulty temperature detection unit exists in the electrode sheet.

[0024] Furthermore, the electric field generator is also used to send a second reminder message and stop outputting the alternating electric signal when it is determined that the electrode sheet needs to be replaced.

[0025] Furthermore, the electric field generator is also used to determine the temperature of the corresponding electrode unit based on the several AD sampling values, and when it is identified that the electrode is overheated based on the temperature of the corresponding electrode unit, it reduces the amplitude of the alternating electric signal or stops outputting the alternating electric signal.

[0026] Furthermore, the detection code array includes at least one of a first code, a second code and a third code, wherein the first code is used to indicate that the temperature detection unit is in a normal state, the second code is used to indicate that the temperature detection unit is in an open circuit state or an unset state, and the third code is used to indicate that the temperature detection unit is in a short circuit state.

[0027] Furthermore, the analog temperature signal is represented by a voltage value, and different voltage intervals of the voltage value correspond to different codes.

[0028] Furthermore, the plurality of electrode sheet units are configured into at least three row groups and at least three column groups, wherein the adapter further comprises: a switching unit, the switching unit comprising at least one control switch, the signal ends of the corresponding temperature detection units in each of the column groups being connected together as temperature sampling points, and the ground ends of the corresponding temperature detection units in each of the row groups being commonly connected to the ground pin through corresponding control switches; the controller is further used to configure the switching state of the control switch; the ADC sampling unit is further used to simultaneously sample the temperature signals detected by the corresponding temperature detection units in each of the row groups through corresponding temperature sampling points.

[0029] Furthermore, the adapter further includes: a DC power supply and a voltage dividing unit, the voltage dividing unit includes at least three voltage dividing resistors, and each of the temperature sampling points is connected to the DC power supply via a corresponding voltage dividing resistor.

[0030] Furthermore, it also includes: at least one first connector, each of the first connectors is suitable for connecting the corresponding electrode sheet to the adapter; and a second connector, the second connector is suitable for connecting the electric field generator to the adapter.

[0031] Furthermore, the first connector is configured to connect the adapter to the electrode sheet by means of a plug-in connector, and the second connector is configured to connect the adapter to the electric field generator by means of a plug-in connector.

[0032] To achieve the above-mentioned purpose, the present invention also provides an electrode sheet, which includes multiple electrode sheet units and multiple temperature detection units. Each temperature detection unit is arranged corresponding to an electrode sheet unit to detect the temperature at the corresponding electrode sheet unit. Each temperature detection unit includes a temperature sensor and an isolation subunit. The temperature sensor is used to detect the temperature at the corresponding electrode sheet unit, and the isolation subunit is used to isolate the influence of other temperature sensors on the corresponding temperature sensor and the influence of the corresponding temperature sensor on other temperature sensors.

[0033] Furthermore, the temperature sensor has a signal terminal and a ground terminal, the isolation sub-unit includes a diode, the diode has an anode and a cathode, the anode of the diode is connected to the ground terminal of the temperature sensor, the cathode of the diode serves as the ground terminal of the temperature detection unit, and the signal terminal of the temperature sensor serves as the signal terminal of the temperature detection unit.

[0034] Furthermore, the plurality of electrode sheet units are configured into at least three row groups and at least three column groups, wherein the signal ends of the corresponding temperature detection units in each of the column groups are connected together as temperature sampling points, the ground ends of the corresponding temperature detection units in each of the row groups are commonly connected to a ground pin through a control switch, and the ground ends of the corresponding temperature detection units in different row groups are connected to the ground pin through different control switches, so that the temperature signals detected by the corresponding temperature detection units in each of the row groups are sampled simultaneously by the corresponding temperature sampling points by configuring the switching states of the control switches.

[0035] To achieve the above-mentioned purpose, the present invention further provides a tumor treatment device, comprising the aforementioned tumor electric field treatment system or the aforementioned electrode sheet.

[0036] According to the tumor treatment device of an embodiment of the present invention, through the aforementioned tumor electric field treatment system, it is possible to monitor whether the electrode sheet is damaged during use, so that the user can replace the electrode sheet in time, avoiding or reducing the risk of low-temperature burns for the patient; through the aforementioned tumor electric field treatment system or electrode sheet, it is possible to avoid mutual influence between temperature detection units according to the isolation sub-unit set by the temperature detection unit, ensuring that the signal detected by the temperature detection unit is accurate and correct.

[0037] To achieve the above objectives, the present invention also provides an electrode sheet fault detection method. This electrode sheet fault detection method, applied to the aforementioned tumor electric field therapy system, comprises: acquiring an analog temperature signal detected by each temperature detection unit in the electrode sheet; determining a detection code array for the electrode sheet based on the analog temperature signal detected by each temperature detection unit; and comparing the detection code array with a preset standard code array to identify a fault condition in each temperature detection unit in the electrode sheet.

[0038] According to the electrode sheet fault detection method of an embodiment of the present invention, the analog temperature signal detected by each temperature detection unit in the electrode sheet is obtained, and the detection coding array of the electrode sheet is determined according to the analog temperature signal detected by each temperature detection unit, and the detection coding array is compared with the preset standard coding array to identify the fault condition of each temperature detection unit in the electrode sheet, thereby being able to monitor whether the electrode sheet is damaged during use, so that the user can replace the electrode sheet in time to avoid or reduce the risk of low-temperature burns in patients.

[0039] Furthermore, after comparing the detection coding array with a preset standard coding array, the method further includes: determining the number of faulty temperature detection units in the electrode sheet; and determining whether the electrode sheet needs to be replaced based on the number.

[0040] Furthermore, when a faulty temperature detection unit is identified in the electrode sheet, the method further includes: controlling the tumor electric field therapy system to issue a first reminder message, and controlling the electric field generator to continue operating.

[0041] Furthermore, when it is determined that the electrode sheet needs to be replaced, the method further includes: controlling the tumor electric field therapy system to issue a second reminder message, and controlling the electric field generator to stop working.

[0042] Furthermore, the detection code array includes at least one of a first code, a second code and a third code, wherein the first code is used to indicate that the temperature detection unit is in a normal state, the second code is used to indicate that the temperature detection unit is in an open circuit state or an unset state, and the third code is used to indicate that the temperature detection unit is in a short circuit state.

[0043] Furthermore, the temperature signal is characterized by a voltage value, and the detection code array of the electrode sheet is determined according to the 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 according to 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; and generating the detection code array of the corresponding electrode sheet according to the code corresponding to each temperature detection unit.

[0044] Furthermore, before comparing the detection coding array with the preset standard coding array, the method also includes: when the qualified electrode sheet is connected to the electric field generator through the adapter, controlling the electric field generator to work, and determining the preset standard coding array based on the temperature signal currently detected by each of the temperature detection units.

[0045] Furthermore, after obtaining the temperature signal detected by each temperature detection unit in the electrode sheet, the method also includes: determining the temperature at the corresponding electrode sheet unit based on the temperature signal detected by each temperature detection unit; when it is identified that the electrode sheet is overheated based on the temperature at the corresponding electrode sheet unit, controlling the electric field generator to reduce the amplitude of the alternating electric signal or stop outputting the alternating electric signal.

[0046] To achieve the above-mentioned object, the present invention further provides a computer-readable storage medium having an electrode sheet fault detection program stored thereon, which, when executed by a processor, implements the aforementioned electrode sheet fault detection method.

[0047] According to the computer-readable storage medium of an embodiment of the present invention, the aforementioned electrode sheet fault detection method can monitor whether the electrode sheet is damaged during use, so that the user can replace the electrode sheet in time to avoid or reduce the risk of low-temperature burns for the patient.

[0048] To achieve the above objectives, the present invention also provides an adapter for a tumor therapy field system. The adapter includes a memory, a processor, and an electrode sheet fault detection program stored in the memory and executable on the processor. When the processor executes the electrode sheet fault detection program, the aforementioned electrode sheet fault detection method is implemented.

[0049] According to the adapter of the tumor electric field therapy system according to an embodiment of the present invention, the electrode sheet fault detection method mentioned above can monitor whether the electrode sheet is damaged during use, so that the user can replace the electrode sheet in time to avoid or reduce the risk of low-temperature burns to the patient.

[0050] To achieve the above objectives, the present invention also provides an electric field generator for a tumor therapy field system. The electric field generator includes a memory, a processor, and an electrode sheet fault detection program stored in the memory and executable on the processor. When the processor executes the electrode sheet fault detection program, the aforementioned electrode sheet fault detection method is implemented.

[0051] According to the electric field generator of the tumor electric field therapy system according to an embodiment of the present invention, the electrode sheet fault detection method mentioned above can monitor whether the electrode sheet is damaged during use, so that the user can replace the electrode sheet in time to avoid or reduce the risk of low-temperature burns to the patient.

[0052] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A schematic structural diagram of a tumor treating field system according to an embodiment of the present invention;

[0054] Figure 2 for Figure 1 A schematic diagram of the connection structure of an electrode sheet and an adapter;

[0055] Figure 3 for Figure 1 Schematic diagram of the internal structure of the adapter;

[0056] Figure 4 for Figure 2 Schematic diagram of temperature detection of the temperature detection unit in FIG.

[0057] Figure 5 FIG. 4 is a flow chart of an electrode sheet fault detection method according to an embodiment of the present invention.

[0058] Reference numerals:

[0059] 30. Electrode sheet; 32. Substrate; 33. Electrode sheet unit; 331. Perforation; 34. Temperature detection unit; 341. Temperature sensor; 341A. Signal terminal; 341B. Ground terminal; 342. Diode; 342A. Anode; 342B. Cathode; 35. First cable; 40. First connector; 41. First plug; 42. First socket; 50. Adapter; 51. Controller; 52. ADC sampling unit; 53. Voltage divider unit; Rz, voltage divider resistor; 54. Switch unit; 55. Second cable; 56. Serial communication unit; 60. Second connector; 61. Second plug; 62. Second socket; 70. Electric field generator; K1, K2, K3 and K4, control switches; 1000. Tumor electric field therapy system. DETAILED DESCRIPTION

[0060] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0061] refer to Figures 1 to 4 As shown, the tumor electric field treatment system 1000 includes: at least one pair of electrode sheets 30, an adapter 50 and an electric field generator 70, and at least one pair of electrode sheets 30 is arranged in pairs on the patient's body surface, as shown in FIG. Figure 1 The four electrode sheets 30 are arranged as a pair on the patient's body surface. An adapter 50 is electrically connected to each electrode sheet 30, and an electric field generator 70 is electrically connected to the adapter 50. The electric field generator 70 is used to generate an alternating electric signal for the tumor electric field and transmit the alternating electric signal to each electrode sheet 30 via the adapter 50, thereby generating an alternating electric field between the two paired electrode sheets 30. This alternating electric field is applied to the patient's tumor site to perform tumor electric field therapy.

[0062] refer to Figure 1-Figure 2 The electrode sheet 30 includes a substrate 32, a plurality of electrode sheet units 33 and a plurality of temperature detection units 34 arranged on the substrate 32. Each electrode sheet unit 33 can apply an alternating electric field. Each temperature detection unit 34 is arranged corresponding to an electrode sheet unit 33 to detect the temperature at the corresponding electrode sheet unit 33. The electrode sheet 30 also includes a backing (not shown) supporting the substrate 32 and a first cable 35 electrically connected to the substrate 32. A first connector 40 is connected between the electrode sheet 30 and the adapter 50. The first connector 40 is suitable for connecting the electrode sheet 30 to the adapter 50. The first connector 40 includes a first plug 41 provided at an end of the first cable 35 away from the electrical functional component and a first socket 42 provided on the adapter 50. The first plug 41 and the first socket 42 are press-type spring connectors, that is, the first connector 40 uses a connector to connect the adapter 50 to the electrode sheet 30.

[0063] The substrate 32 of the electrode sheet 30 is arranged in a grid shape, and a plurality of electrode sheet units 33 and a plurality of temperature detection units 34 are spaced apart on the substrate 32. Each electrode sheet unit 33 has a through-hole 331 arranged therethrough, and the through-hole 331 is suitable for installing the temperature detection unit 34. In this embodiment, the through-hole 331 is located in the middle of each electrode sheet unit 33, and each temperature detection unit 34 is accommodated in the through-hole 331 of the corresponding electrode sheet unit 33. Optionally, the electrode sheet unit 33 is a dielectric element, such as a ceramic sheet. The electrode sheet 30 also includes a support plate (not shown) located on the substrate 32 away from the electrode sheet unit 33 to provide strength support for the substrate 32, and the support plate (not shown) is sandwiched between the substrate 32 and the backing (not shown).

[0064] The plurality of electrode sheet units 33 of the electrode sheet 30 are arranged roughly in an array. Figure 1As shown, the 20 electrode sheet units 33 are arranged in four rows and six columns, the first row and the fourth row each have four electrode sheet units 33, and the four electrode sheet units 33 in each row of the first row and the fourth row are all located in each column from the second column to the fifth column, the two middle rows each have six electrode sheet units 33, and the six electrode sheet units 33 in each row of the two middle rows are all located in each column from the first column to the sixth column. The 20 electrode sheet units 33 can also be arranged in four rows and five columns, with each row having five electrode sheet units 33. The 20 electrode sheet units 33 can also be arranged in other array forms. The spatial arrangement of the multiple temperature detection units 34 arranged in a one-to-one correspondence with the electrode sheet units 33 is roughly the same as the array arrangement of the multiple electrode sheet units 33.

[0065] refer to Figure 2 As shown, a plurality of electrode sheet units 33 are connected in parallel through the same conductive trace (AC line) of the substrate 32, and an alternating electric signal is transmitted to them by the conductive trace (AC line), and a therapeutic electric field for treating tumors is formed between the relative electrode sheet 30. The plurality of electrode sheet units 33 and the plurality of temperature detection units 34 are configured into at least three row groups and at least three column groups in terms of circuit connection. In this embodiment, the 20 electrode sheet units 33 are sorted and grouped in the order of detection bits 1 to 20 in terms of circuit connection, and are divided into four row groups and five column groups, that is, the 20 electrode sheet units 33 are arranged in four rows and five columns in terms of circuit connection. Since the plurality of temperature detection units 34 are arranged in a one-to-one correspondence with the plurality of electrode sheet units 33, the plurality of temperature detection units 34 are also arranged in four row groups and five column groups in terms of circuit connection. It should be noted that the arrangement here is to more clearly show the electrical connection between the electrode sheet 30 and the adapter 50, and does not represent the arrangement of the electrode sheet units 33 in the spatial structure. Its spatial structure may be as follows Figure 1 The structure shown is roughly an array.

[0066] Each temperature detection unit 34 has a signal terminal (unnumbered) and a ground terminal (unnumbered). The signal terminals (unnumbered) of the corresponding temperature detection units 34 in each column group are connected together as a temperature sampling point. The ground terminals (unnumbered) of the corresponding temperature detection units 34 in each row group are connected to the ground pin GND through a control switch. The ground terminals (unnumbered) of the corresponding temperature detection units 34 in different row groups are connected to the ground pin GND through different control switches. By configuring the switching state of the control switch, the temperature signals detected by the corresponding temperature detection units 34 in each row group are sampled simultaneously by the corresponding temperature sampling points. Figure 2As shown, in this embodiment, the ground terminals (unnumbered) of the five temperature detection units 34 located in each row group are short-circuited in parallel through the same conductive trace (such as conductive trace 1, 2, 3 or 4) of the substrate 32, and the signal terminals (unnumbered) of the five temperature detection units 34 located in each row group are connected in parallel through five conductive traces (such as conductive traces 5, 6, 7, 8 and 9) of the substrate 32. The signal terminals (unnumbered) of the temperature detection units 34 located in each column group are short-circuited in parallel through the same conductive trace (such as conductive trace 5, 6, 7, 8 or 9) of the substrate 32, and the ground terminals (unnumbered) of the temperature detection units 34 located in each column group are connected in parallel through four conductive traces (such as conductive traces 1, 2, 3 and 4) of the substrate 32.

[0067] refer to Figure 2 As shown, each temperature detection unit 34 includes a temperature sensor 341 and a diode 342. The temperature sensor 341 has a signal terminal 341A and a ground terminal 341B. The diode 342 has an anode 342A and a cathode 342B. The anode 342A of the diode 342 is connected to the ground terminal 341B of the temperature sensor 341. The cathode 342B of the diode 342 serves as the ground terminal (not numbered) of the temperature detection unit 34. The signal terminal 341A of the temperature sensor 341 serves as the signal terminal (not numbered) of the temperature detection unit 34. During temperature detection, the corresponding temperature detection unit 34 can prevent the resistance of other temperature sensors 341 from affecting the resistance of the detected temperature sensor 341 through the diode 342. The end of each diode 342 away from the temperature sensor 341 to which it is connected is short-circuited by the same conductive trace (e.g., conductive trace 1, 2, 3, or 4) on the substrate 32.

[0068] The adapter 50 is used to sample the analog temperature signal detected by each temperature detection unit 34 in the electrode sheet 30, and periodically determine the detection code array of the electrode sheet 30 based on the sampled analog temperature signal detected by each temperature detection unit 34, and compare the detection code array with the preset standard code array to identify the fault condition of each temperature detection unit 34 in the electrode sheet 30. The preset standard code array is the code array when the electrode sheet 30 is qualified. Figure 2-Figure 3 The adapter 50 includes a main control board electrically connected to the first connector 40. The main control board includes a controller 51, an ADC sampling unit 52, a plurality of switch units 54 each consisting of a plurality of corresponding control switches (e.g., control switches K1, K2, K3, and K4), and a serial communication unit 56. The controller 51 is used to configure the switch states of the plurality of control switches of the plurality of switch units 54.

[0069] The ADC sampling unit 52 is connected to the controller 51 and is used to sample the analog temperature signal detected by each temperature detection unit 34 to obtain a number of AD sampling values. Figure 2 As shown, the ADC sampling unit 52 samples the analog temperature signal detected by the corresponding temperature detection unit 34 in each row group at the same time through the corresponding temperature sampling point to obtain a number of AD sampling values. Specifically, the ADC sampling unit 52 has multiple acquisition channels, and the number of acquisition channels is greater than or equal to the number of column groups. In this embodiment, the ADC sampling unit 52 has five acquisition channels 1, 2, 3, 4 and 5. Each acquisition channel only acquires the analog temperature signal detected by the corresponding temperature detection unit 34 at the same time to obtain an AD sampling value. The AD sampling value is a voltage value, that is, the temperature signal is represented by a voltage value. The adapter 50 also includes a DC power supply VCC and a voltage divider unit 53. The voltage divider unit 53 includes at least three voltage divider resistors Rz. Each temperature sampling point is connected to the DC power supply VCC through the corresponding voltage divider resistor Rz.

[0070] The controller 51 is used to configure the on / off states of the control switches. In this embodiment, only one of the four control switches in the switch unit 54 is turned on at any one time, while the other three are turned off. This allows the ADC sampling unit 52 to collect the analog temperature signals detected by the group of temperature detection units 34 that are short-circuited with the turned-on control switches. For example, the ground terminals (unnumbered) of the temperature detection units 34 numbered 1, 2, 3, 4, and 5 are short-circuited together and connected to the ground pin GND through the control switch K1 in the switch unit 54 in the adapter 50. The signal terminals (unnumbered) of the temperature detection units 34 numbered 1, 2, 3, 4, and 5 are respectively connected to the acquisition channels 1-5 of the ADC sampling unit 52 through the corresponding temperature sampling points; the ground terminals (unnumbered) of the temperature detection units 34 numbered 6, 7, 8, 9, and 10 are short-circuited together and connected to the ground pin GND through the control switch K2 in the switch unit 54 in the adapter 50. The signal terminals (unnumbered) of the temperature detection units 34 numbered 6, 7, 8, 9, and 10 are respectively connected to the acquisition channels 1-5 of the ADC sampling unit 52 through the corresponding temperature sampling points; The ground terminals (unnumbered) of the temperature detection units 34 numbered 2, 13, 14, and 15 are short-circuited together and connected to the ground pin GND through the control switch K3 in the switch unit 54 in the adapter 50. The signal terminals (unnumbered) of the temperature detection units 34 numbered 11, 12, 13, 14, and 15 are respectively connected to the acquisition channels 1-5 of the ADC sampling unit 52 through the corresponding temperature sampling points; the ground terminals (unnumbered) of the temperature detection units 34 numbered 16, 17, 18, 19, and 20 are short-circuited together and connected to the ground pin GND through the control switch K4 in the switch unit 54 in the adapter 50. The signal terminals (unnumbered) of the temperature detection units 34 numbered 16, 17, 18, 19, and 20 are respectively connected to the acquisition channels 1-5 of the ADC sampling unit 52 through the corresponding temperature sampling points.

[0071] When the ADC sampling unit 52 obtains a plurality of AD sampling values, it also transmits the plurality of AD sampling values to the controller 51, so that the controller 51 determines the detection code array of the electrode sheet 30 based on the plurality of AD sampling values, compares the detection code array with a preset standard code array, and identifies the fault condition of each temperature detection unit 34 in the electrode sheet 30. In this embodiment, the controller 51 can selectively enable any row of temperature detection units 34 among the 20 temperature detection units 34 to detect temperature by selectively controlling any one of the four control switches in the switch unit 54 to be turned on and the remaining three to be turned off. The ADC sampling unit 52 simultaneously collects the analog temperature signals detected by the group of temperature detection units 34 through the corresponding temperature sampling points to obtain a plurality of AD sampling values, and transmits the AD sampling values to the controller 51. The controller 51 determines the detection code array of the electrode sheet 30 based on the plurality of AD sampling values, compares the detection code array with a preset standard code array, and identifies the fault condition of each temperature detection unit 34 in the electrode sheet 30.

[0072] The adapter 50 further includes a reminder unit (not shown), which is connected to the controller 51. The controller 51 controls the reminder unit (not shown) to issue a first reminder message and instruct the electric field generator 70 to continue operating when a faulty temperature detection unit 34 is present in the electrode sheet 30. For example, the controller 51 controls the reminder unit (not shown), such as an indicator light, to illuminate green when no faulty temperature detection unit 34 is present in the electrode sheet 30, and controls the reminder unit (not shown), such as an indicator light, to illuminate red when a faulty temperature detection unit 4 is present in the electrode sheet 30.

[0073] The controller 51 also determines the number of faulty temperature detection units 34 in the electrode sheet 30 when comparing the detection coding array with the preset standard coding array, and judges whether the electrode sheet 30 needs to be replaced based on the number. For example, when the number exceeds the preset number (the minimum can be set to 1), it is judged that the electrode sheet 30 needs to be replaced, and when the number does not exceed the preset number, it is judged that the electrode sheet 30 does not need to be replaced. The controller 51 can also control the reminder unit (not shown) to send a second reminder message and instruct the electric field generator 70 to stop working when it is judged that the electrode sheet 30 needs to be replaced. For example, when the controller 51 judges that the electrode sheet 30 needs to be replaced, it controls the reminder unit (not shown) such as the indicator light to light red and flash, and can control the reminder unit (not shown) such as the buzzer alarm, and can send a corresponding signal to the electric field generator 70 through the serial communication unit 56 so that the electric field generator 70 stops outputting the alternating electric signal.

[0074] During the process of tumor electric field therapy performed by the electrode sheet 30, the adapter 50 periodically performs the aforementioned electrode sheet 30 fault detection and replaces the electrode sheet 30 in a timely manner. In addition to periodically performing the aforementioned electrode sheet 30 fault detection, the adapter 50 also obtains a number of AD sampling values based on the analog temperature signals detected by each temperature detection unit 34, and transmits the AD sampling values to the controller 51. The controller 51 converts the AD sampling values into a digital temperature signal to determine the temperature at the corresponding electrode sheet unit 33. The controller 51 sends the digital temperature signal to the electric field generator 70 via the serial communication unit 56. When the electric field generator 70 identifies that the electrode sheet 30 is overheated based on the temperature at the corresponding electrode sheet unit 33, the electric field generator 70 reduces the amplitude of the alternating electric signal or stops outputting the alternating electric signal. In this embodiment, the controller 51 can calculate the temperature of each electrode unit 33 in the electrode sheet 30 based on a plurality of AD sampling values, and then compare the temperature with a preset temperature. If the temperature exceeds the preset temperature, the electrode sheet 30 is considered to be overheated. At this time, a corresponding signal can be sent to the electric field generator 70 via the serial communication unit 56, so that the electric field generator 70 stops outputting the alternating electrical signal or reduces the amplitude of the alternating electrical signal. The preset temperature range can be 39°C to 41°C, preferably 40.5°C.

[0075] refer to Figure 1 As shown, the adapter 50 also includes a second cable 55 connected to the electric field generator 70. A second connector 60 is provided between the adapter 50 and the electric field generator 70. The second connector 60 is suitable for connecting the electric field generator 70 to the adapter 50. The second connector 60 includes a second plug 61 provided at the end of the second cable 55 away from the controller 51 and a second socket 62 provided on the electric field generator 70. The second plug 61 and the second socket 62 are press-type spring connectors, that is, the second connector 60 uses a connector to connect the adapter 50 to the electric field generator 70. Figure 3 As shown, when there are four first connectors 40, each first connector, such as X1, Y1, X2, and Y2, is connected to the second connector 60 via an alternating power line. The first connectors, such as X1, Y1, X2, and Y2, are also respectively connected to the switch unit 54 and the ADC sampling unit 52. The second connector 60 is connected to the serial communication unit 56 via a receive data line RX and a transmit data line TX. The VCC pin of the second connector 60 is connected to the power supply terminal of the controller 51, and the GND pin of the second connector 60 is grounded. The VCC pin of the second connector 60 is also connected to the temperature sampling point via a corresponding voltage divider resistor Rz.

[0076] In other embodiments, the controller 51 can also send a number of AD sampling values to the electric field generator 70 through the serial communication unit 56, the second cable 55, and the second connector 60, so that the electric field generator 70 determines the detection code array of the electrode sheet 30 based on the number of AD sampling values, and compares the detection code array with the preset standard code array to identify the fault condition of each temperature detection unit 34 in the electrode sheet 30. The electric field generator 70 also issues a first reminder message and continues to output an alternating electric signal when there is a faulty temperature detection unit 34 in the electrode sheet 30. For example, the electric field generator 70 may include a reminder unit (not shown), and when there is no faulty temperature detection unit 34 in the electrode sheet 30, the electric field generator 70 controls the reminder unit (not shown) such as an indicator light to light green, and when there is a faulty temperature detection unit 4 in the electrode sheet 30, the electric field generator controls the reminder unit (not shown) such as an indicator light to light red.

[0077] The electric field generator 70 also determines the number of faulty temperature detection units 34 in the electrode sheet 30 when comparing the detection coding array with the preset standard coding array, and judges whether the electrode sheet 30 needs to be replaced based on the number. For example, when the number exceeds the preset number, it is judged that the electrode sheet 30 needs to be replaced, and when the number does not exceed the preset number, it is judged that the electrode sheet 30 does not need to be replaced. The electric field generator 70 also sends a second reminder message and stops outputting the alternating electric signal when it determines that the electrode sheet 30 needs to be replaced. For example, when the electric field generator 70 determines that the electrode sheet 30 needs to be replaced, it controls the reminder unit (not shown) such as the indicator light to light up red and flash, and can also control the reminder unit (not shown) such as the buzzer alarm, and stops outputting the alternating electric signal.

[0078] The electric field generator 70 also determines the temperature of the corresponding electrode sheet unit 33 based on a number of AD sampling values, and when it identifies that the electrode sheet 30 is overheated based on the temperature of the corresponding electrode sheet unit 33, it reduces the amplitude of the alternating electric signal or stops outputting the alternating electric signal. For example, the electric field generator 70 can calculate the temperature of each electrode sheet unit 33 in the electrode sheet 30 based on a number of AD sampling values, and then compare the temperature with a preset temperature. If the temperature exceeds the preset temperature, it is considered that the electrode sheet 30 is overheated. At this time, the output of the alternating electric signal can be stopped or the amplitude of the alternating electric signal can be reduced. The preset temperature range can be 39°C to 41°C, preferably 40.5°C.

[0079] That is to say, the adapter 50 or the electric field generator 70 can determine the detection coding array of the electrode sheet 30 based on the AD sampling value, and identify whether there is a fault in the multiple temperature detection units 34 in the electrode sheet 30 according to the detection coding array, and execute corresponding reminders and protection strategies when a fault occurs; it can also obtain the number of faulty temperature detection units 34 based on the detection coding array when a fault occurs, and determine whether the electrode sheet 30 needs to be replaced based on the number, and execute corresponding reminders and protection strategies when the electrode sheet 30 needs to be replaced; it can also obtain the temperature of each electrode sheet unit 33 in the electrode sheet 30 based on the AD sampling value, and determine whether the electrode sheet 30 is over-temperature based on the temperature, and execute corresponding reminders and protection strategies when an over-temperature occurs.

[0080] Optionally, the temperature sensor 341 in the temperature detection unit 34 is a thermistor. In this embodiment, the temperature sensor 341 is a thermistor with a negative temperature coefficient, whose characteristic is that the higher the temperature, the smaller the resistance, and the lower the temperature, the larger the resistance. Since the electrode sheet 30 is applied to the human body surface during use, and the human body surface temperature is generally between 36°C and 37°C, a thermistor with a negative temperature coefficient in the temperature range of 0°C to 50°C can be selected. For example, a thermistor with model NCP18XH103D03RB can be selected. When the temperature it senses is 0°C, the corresponding resistance is approximately 27.45KΩ; when the temperature it senses is 25°C, the corresponding resistance is approximately 10.0KΩ; when the temperature it senses is 50°C, the corresponding resistance is approximately 4.16KΩ. In other embodiments, the temperature sensor 341 is a thermistor with a positive temperature coefficient.

[0081] like Figure 2 and Figure 4 As shown, when the controller 51 controls any one of the control switches in the switch unit 54 to be turned on and the other control switches to be turned off, the DC power supply VCC sequentially provides DC power to the voltage divider resistor Rz, the temperature sensor 341 and the diode 342. The ADC sampling unit 52 in the adapter 50 collects the voltage between the temperature sensor 341 and the voltage divider resistor Rz through the corresponding collection channel, that is, the voltage divided by the temperature sensor 341, the diode 342 and the voltage divider resistor Rz, and obtains an AD sampling value, that is, a voltage value, as shown in the following formula (1):

[0082] VADC=(VCC-VD)×R / (R1+R) (1)

[0083] Among them, VADC is the AD sampling value, that is, the voltage value, VCC is also used to represent the voltage of the DC power supply, VD is the voltage drop of the diode 342, R is the resistance of the temperature sensor 341 (thermistor), and R1 is also used to represent the resistance of the voltage divider resistor Rz.

[0084] Assuming that the voltage drop VD of the diode 342 is 0.3V and the resistance R1 of the voltage divider resistor Rz is 10KΩ, then when the temperature sensed by the temperature sensor 341 (thermistor) is 0°C, the corresponding resistance is approximately 27.45KΩ. Based on formula (1), the corresponding AD sampling value V0 = (3.3-0.3) × 27.45 / (10 + 27.45) = 2.20V can be obtained; when the temperature sensed by the temperature sensor 341 (thermistor) is 25°C, , the corresponding resistance is approximately 10.0KΩ. Based on formula (1), the corresponding AD sampling value V25 = (3.3-0.3) × 10 / (10+10) = 1.50V can be obtained. When the temperature sensed by temperature sensor 341 (thermistor) is 50°C, the corresponding resistance is approximately 4.16KΩ. Based on formula (1), the corresponding AD sampling value V50 = (3.3-0.3) × 4.16 / (10+4.16) = 0.88V can be obtained. When temperature sensor 341 (thermistor) is disconnected, for example, temperature sensor 341 (thermistor) is not soldered or temperature sensor 341 (thermistor) is broken, the corresponding AD sampling value can be 3.3V. When temperature sensor 341 (thermistor) and diode 342 are short-circuited, the corresponding AD sampling value can be 0V.

[0085] Since the ADC sampling unit 52 collects the voltage value of the temperature sensor 341 (thermistor), and the temperature sensor 341 (thermistor) has different voltage values corresponding to different temperatures, the voltage value collected by the ADC sampling unit 52 can be reasonably segmented for distinction, and the voltage value can be converted into a corresponding code, that is, different voltage intervals in which the voltage value is located correspond to different codes, and based on the code, the detection code array of the electrode sheet 30 can be determined. The detection code array includes at least one of a first code, a second code, and a third code, wherein the first code is used to indicate that the temperature detection unit 34 is in a normal state, the second code is used to indicate that the temperature detection unit 34 is in an open circuit state or an unset state, and the third code is used to indicate that the temperature detection unit 34 is in a short circuit state.

[0086] In this embodiment, taking the temperature sensor 341 sensing the temperature within the range of 0°C to 50°C, and the AD sampling value obtained by the ADC sampling unit 52, that is, the voltage value range is 0.88V to 2.20V as an example, considering the detection error factor, etc., the voltage value range can be appropriately enlarged to 0.5V to 3V.

[0087] When the AD sampling value obtained by the ADC sampling unit 52 is greater than 0.5V and less than 3V, the corresponding code is a first code, such as 1; when the AD sampling value obtained by the ADC sampling unit 52 is less than or equal to 0.3V, the corresponding code is a third code, such as 0; and when the AD sampling value obtained by the ADC sampling unit 52 is greater than or equal to 3.1V, the corresponding code is a second code, such as 2. Therefore, in the corresponding detection bits numbered 1 to 20 of the electrode sheet 30, if the temperature sensor 341 is short-circuited, the corresponding code is the third code, such as 0; if the temperature sensor 341 is normal, the corresponding code is the first code, such as 1; and if there is no temperature sensor 341 or the temperature sensor 341 is short-circuited, the corresponding code is the second code, such as 2.

[0088] refer to Figure 2 As shown, under normal circumstances, when the electrode sheet 30 has 20 electrode sheet units 33, each electrode sheet unit 33 includes a temperature sensor 341 and a diode 342, that is, the corresponding detection positions numbered 1 to 20 of the electrode sheet 30 all have temperature sensors 341, and the codes are all 1, the 20 codes are combined to obtain a 20-bit code array of 1111111111 11111 11111. When the temperature sensor 341 is short-circuited, assuming that the temperature sensor 341 of the detection position numbered 1 is short-circuited, the 20-bit code array obtained is 01111 11111 11111 11111.

[0089] Based on the above coding principle, the quality of the electrode sheet 30 can be monitored during use, so that the user can replace the electrode sheet 30 in time to avoid low-temperature burns. The specific process is as follows:

[0090] Step 1: Provide at least one pair of qualified electrode sheets 30 (since the electrode sheets 30 are medical devices, each electrode sheet 30 undergoes multiple tests before leaving the factory to ensure that the electrode sheets 30 are qualified. Therefore, the electrode sheets 30 provided to the user are all qualified electrode sheets 30). Connect the at least one pair of qualified electrode sheets 30 to the aforementioned adapter 50, and connect the aforementioned adapter 50 to the aforementioned electric field generator 70.

[0091] Step 2: Power on the electric field generator 70 to provide a DC power source VCC to the temperature detection unit 34 in at least one pair of qualified electrode sheets 30 for temperature detection. The ADC sampling unit 52 in the adapter 50 collects the analog temperature signals detected by the temperature detection unit 34 of at least one pair of qualified electrode sheets 30, obtaining a plurality of AD sampling values. The controller 51 in the adapter 50 obtains at least two sets of standard code arrays A1 and A2 according to the aforementioned encoding rules. The at least two sets of standard code arrays A1 and A2 can be stored in the adapter 50 and used as comparison codes.

[0092] Step 3: Turn off the power of the electric field generator 70 and place the at least one pair of qualified electrode sheets 30 on the body surface corresponding to the tumor portion of the patient.

[0093] Step 4: Power on the electric field generator 70 to provide a DC power supply VCC to the temperature detection unit 34 in at least one pair of qualified electrode sheets 30 for temperature detection. Simultaneously, it provides an alternating electrical signal to the electrode sheet unit 33 in the electrode sheet 30, thereby forming an alternating electric field between the paired electrode sheets 30 for tumor electric field therapy. The ADC sampling unit 52 in the adapter 50 collects the temperature signals detected by the temperature detection unit 34 in at least one pair of qualified electrode sheets 30, obtaining a plurality of AD sampling values. The controller 51 in the adapter 50 generates at least two sets of detection code arrays B1' and B2' according to the aforementioned encoding rules.

[0094] Step 5: The controller 51 in the adapter 50 compares the detection code arrays B1' and B2' with the corresponding standard code arrays A1 and A2 one by one. If the detection code arrays B1' and B2' are consistent with the standard code arrays A1 and A2, steps 4 and 5 are repeated. If at least one of the detection code arrays B1' or B2' is inconsistent with the standard code arrays A1 and A2, step 6 is performed.

[0095] Step 6: The adapter 50 confirms the number of abnormal temperature detection units 34 in the electrode sheet 30 corresponding to the inconsistent detection code array B1' and / or B2', and determines whether the number of abnormal temperature detection units 34 in the corresponding electrode sheet 30 exceeds the upper limit. If it does not exceed the upper limit, proceed to step 7; if it exceeds the upper limit, proceed to step 8.

[0096] Step 7: Continue to repeat steps 4 and 5.

[0097] Step 8: The adapter 50 issues an alarm by controlling the reminder unit (not shown) inside it, and at the same time sends a corresponding signal to the electric field generator 70 through the serial communication unit 56, so that the electric field generator 70 stops providing alternating electric signals to the electrode sheet unit 33 in the electrode sheet 30, reminding the user to replace the corresponding electrode sheet 30.

[0098] Step nine: Turn off the power of the electric field generator 70 , remove the electrode sheet 30 to be replaced from the adapter 50 , and connect a new electrode sheet 30 to the adapter 50 .

[0099] Step 10: Power on the electric field generator 70 and continue to provide a DC power supply VCC to the temperature detection unit 34 in the electrode sheet 30 connected to the adapter 50 for temperature detection. The ADC sampling unit 52 in the adapter 50 collects the temperature signal detected by the temperature detection unit 34 of the replaced qualified electrode sheet 30 to obtain a number of AD sampling values. The controller 51 in the adapter 50 obtains a new standard coding array A1' or / and A2' according to the aforementioned coding rules, and compares at least one set of the new standard coding array A1' or / and A2' with the corresponding standard coding array A1 or / and A2 stored above. If the new standard coding array A1' or / and A2' is consistent with the standard coding array A1 or / and A2, the power of the electric field generator 70 is turned off and the The replaced new electrode sheet 30 is placed on the body surface corresponding to the tumor part of the patient, and then steps four and five are looped; if after comparing the new standard coding array A1' or / and A2' with the aforementioned stored standard coding arrays A1 or / and A2 one by one, there is at least one set of new standard coding arrays A1' and / or A2' that is inconsistent with the aforementioned stored and corresponding standard coding arrays A1 and / or A2, then steps nine and ten are looped until the new standard coding arrays A1' and / or A2' of the replaced qualified electrode sheet 30 are consistent with the aforementioned stored and corresponding standard coding arrays A1 and / or A2.

[0100] It should be noted that in the above steps, the paired electrode sheets 30 may be electrode sheets 30 of the same design, that is, the paired electrode sheets 30 have the same standard coding arrays, that is, the standard coding arrays A1 and A2 are the same.

[0101] The above steps 1 and 2 can be replaced by the user inputting at least two sets of standard code arrays A1 and A2. The at least two sets of standard code arrays A1 and A2 can be stored in the adapter 50 and used as comparison codes.

[0102] In the above step six, the number of abnormal temperature detection units 34 in the corresponding electrode sheet 30 is determined by the number of codes that are different when the inconsistent detection code array A1' and / or A2' is compared with the corresponding standard code arrays A1 and A2. For example, when A1' is compared with A1, only the first code is different, then the number of abnormal temperature detection units 34 in the corresponding electrode sheet 30 is 1; for another example, when A1' is compared with A1, only the last two codes are different, then the number of abnormal temperature detection units 34 in the corresponding electrode sheet 30 is 2; and so on.

[0103] In step 6 above, the upper limit can be set to 1, indicating that one temperature detection unit 34 on the electrode sheet 30 is abnormal, and step 8 is executed to generate an alarm and replace the electrode sheet 30. In other embodiments, in step 6 above, the upper limit is not limited to 1, but can be a positive integer close to the ratio of the number of temperature detection units 34 on the electrode sheet 30.

[0104] In step eight, the reminder unit (not shown) may include at least two indicator lights (not shown) corresponding to each electrode pad 30, indicating the status of the corresponding electrode pad 30. When the electrode pad 30 does not need to be replaced, both indicator lights (not shown) illuminate green. When the electrode pad 30 needs to be replaced, the indicator light (not shown) corresponding to the electrode pad 30 to be replaced illuminates red. Alternatively, the indicator light (not shown) may be permanently lit or flashing to indicate whether the electrode pad 30 needs to be replaced or not.

[0105] In step eight, the reminder unit (not shown) may further include a buzzer (not shown) to indicate the status of the electrode pad 30 and to alert the user simultaneously with the indicator light (not shown). When the electrode pad 30 does not need to be replaced, the buzzer (not shown) does not sound an alarm; when the electrode pad 30 needs to be replaced, the buzzer (not shown) sounds an alarm.

[0106] While comparing the detection code array with the standard code array in steps 4, 5, and 6 above, temperature monitoring is also performed simultaneously. The steps include the following:

[0107] Step 11: The controller 51 in the adapter 50 calculates the digital temperature signal detected by the temperature detection unit 34 based on a number of AD sampling values, and determines whether the digital temperature signal exceeds the preset temperature. If the digital temperature signal detected by the temperature detection unit 34 of the electrode sheet 30 exceeds the preset temperature, proceed to step 12; if the digital temperature signals detected by the temperature detection unit 34 of the electrode sheet 30 are all below the preset temperature, continue to step 11.

[0108] Step 12: When the controller 51 in the adapter 50 detects that the temperature detected by the temperature detection unit 34 of the electrode sheet 30 exceeds a preset temperature, it sends a corresponding signal through the serial communication unit 56, causing the electric field generator 70 to reduce or shut down the alternating electric signal of the corresponding pair of electrode sheets 30 until the temperature detected by the temperature detection unit 34 of the corresponding electrode sheet 30 is below the preset temperature. The preset temperature range is 39°C to 41°C, preferably 40.5°C.

[0109] It should be noted that the above process is described using the adapter 50 as an example of quality monitoring of the electrode sheet 30. The electric field generator 70 can also perform quality monitoring of the electrode sheet 30, or the adapter 50 and the electric field generator 70 can each perform partial quality monitoring. The details are not repeated here. In addition, the number of electrode sheets 30, the number of electrode sheet units 33 of each electrode sheet 30, and the setting of the sampling code are all illustrative and do not limit the present application.

[0110] In the above embodiment, the analog temperature signal detected by each temperature detection unit 34 in the electrode sheet 30 is sampled by the adapter 50, and the detection code array of the electrode sheet 30 is determined by the adapter 50 or the electric field generator 70 based on the sampled analog temperature signal detected by each temperature detection unit 34, and the detection code array is compared with the preset standard code array to identify the fault condition of each temperature detection unit 34 in the electrode sheet 30 and the number of faulty temperature detection units 34, and then determine whether the electrode sheet 30 needs to be replaced based on the number, so that it is possible to monitor whether the electrode sheet 30 is damaged during use, so that the user can replace the electrode sheet 30 in time to avoid or reduce the risk of low-temperature burns for the patient; it is also possible to determine whether the electrode sheet 30 is overheated based on the sampled analog temperature signal detected by each temperature detection unit 34 through the adapter 30 or the electric field generator 70 to avoid low-temperature burns for the patient.

[0111] The present invention also provides an electrode sheet fault detection method, which is applied to the aforementioned tumor electric field therapy system, referring to Figure 5 As shown, the method includes:

[0112] S91 , obtaining an analog temperature signal detected by each temperature detection unit 34 in the electrode sheet 30 .

[0113] S92 , determining a detection code array of the electrode sheet 30 according to the analog temperature signal detected by each temperature detection unit 34 .

[0114] As an implementation, the analog temperature signal is represented by a voltage value, and a detection code array for the electrode sheet 30 is determined based on the analog 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 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; and generating a detection code array for the corresponding electrode sheet 30 based on the code corresponding to each temperature detection unit 34. For example, the detection code array includes at least one of a first code, a second code, and a third code, wherein the first code is used to indicate that the temperature detection unit is in a normal state, the second code is used to indicate that the temperature detection unit is in an open circuit state or an unset state, and the third code is used to indicate that the temperature detection unit is in a short circuit state.

[0115] S93 , comparing the detection code array with a preset standard code array to identify the fault condition of each temperature detection unit 34 in the electrode sheet 30 .

[0116] Furthermore, when a faulty temperature detection unit 34 in the electrode sheet 30 is identified, the method further includes: controlling the tumor electric field therapy system 1000 to issue a first reminder message, and controlling the electric field generator 70 to continue working.

[0117] Optionally, after comparing the detection code array with a preset standard code array, the method further includes determining the number of faulty temperature detection units 34 in the electrode sheet 30; and determining whether the electrode sheet 30 needs to be replaced based on the number of faulty temperature detection units 34. Furthermore, if it is determined that the electrode sheet 30 needs to be replaced, the method further includes controlling the tumor therapeutic field system 1000 to issue a second reminder message and controlling the electric field generator 70 to stop operating.

[0118] Optionally, before comparing the detection coding array with the preset standard coding array, the method also includes: when the qualified electrode sheet 30 is connected to the electric field generator 70 through the adapter 50, controlling the electric field generator 70 to work, and determining the preset standard coding array based on the analog temperature signal currently detected by each temperature detection unit 34.

[0119] Optionally, after obtaining the analog temperature signal detected by each temperature detection unit 34 in the electrode sheet 30, the method further includes: determining the temperature at the corresponding electrode sheet unit 33 based on the analog temperature signal detected by each temperature detection unit 34; when it is identified that the electrode sheet 30 is overheated based on the temperature at the corresponding electrode sheet unit 33, controlling the electric field generator 70 to reduce the amplitude of the alternating electric signal or stop outputting the alternating electric signal.

[0120] It should be noted that for the description of the electrode sheet fault detection method, please refer to the aforementioned description of the tumor electric field therapy system 1000, which will not be repeated here.

[0121] In the above embodiment, by sampling the analog temperature signal detected by each temperature detection unit 34 in the electrode sheet 30, and determining the detection code array of the electrode sheet 30 based on the sampled analog temperature signal detected by each temperature detection unit 34, and comparing the detection code array with the preset standard code array, the fault condition of each temperature detection unit 34 in the electrode sheet 30 and the number of faulty temperature detection units 34 are identified, and then whether the electrode sheet 30 needs to be replaced is determined based on the number, so that whether the electrode sheet 30 is damaged during use can be monitored, so that the user can replace the electrode sheet 30 in time to avoid or reduce the risk of low-temperature burns for the patient; it can also be determined whether the electrode sheet 30 is overheated based on the sampled temperature signal detected by each temperature detection unit 34 to avoid low-temperature burns for the patient.

[0122] In some embodiments, a tumor treatment device is provided, including: the aforementioned tumor electric field treatment system 1000.

[0123] According to the tumor treatment device of an embodiment of the present invention, through the aforementioned tumor electric field treatment system 1000, it is possible to monitor whether the electrode sheet 30 is damaged during use, so that the user can replace the electrode sheet 30 in a timely manner to avoid or reduce the risk of low-temperature burns to the patient; it can also determine whether the electrode sheet 30 is overheated to avoid low-temperature burns to the patient.

[0124] The present invention further provides a computer-readable storage medium (not shown) on which an electrode sheet fault detection program is stored. When the electrode sheet fault detection program is executed by a processor, the aforementioned electrode sheet fault detection method is implemented.

[0125] According to the computer-readable storage medium (not shown) of an embodiment of the present invention, the aforementioned electrode sheet fault detection method can monitor whether the electrode sheet is damaged during use, so that the user can replace the electrode sheet 30 in a timely manner to avoid or reduce the risk of low-temperature burns in patients; it can also determine whether the electrode sheet 30 is overheated to avoid low-temperature burns in patients.

[0126] The present invention also provides an adapter 50 for a tumor electric field therapy system 1000, comprising a memory (not shown), a processor (not shown), and an electrode sheet fault detection program stored in the memory (not shown) and executable on the processor (not shown). When the processor (not shown) executes the electrode sheet fault detection program, the aforementioned electrode sheet fault detection method is implemented.

[0127] According to the adapter 50 of the tumor electric field therapy system 1000 according to an embodiment of the present invention, the electrode sheet 30 can be monitored during use to determine whether it is damaged through the aforementioned electrode sheet fault detection method, so that the user can replace the electrode sheet 30 in a timely manner to avoid or reduce the risk of low-temperature burns to the patient; it can also determine whether the electrode sheet 30 is overheated to avoid low-temperature burns to the patient.

[0128] The present invention also provides an electric field generator 70 of a tumor electric field therapy system 1000, comprising a memory (not shown), a processor (not shown), and an electrode sheet fault detection program stored in the memory (not shown) and executable on the processor (not shown). When the processor executes the electrode sheet fault detection program, the aforementioned electrode sheet fault detection method is implemented.

[0129] According to the electric field generator 70 of the tumor electric field therapy system 1000 according to an embodiment of the present invention, the electrode sheet 30 can be monitored during use to determine whether it is damaged through the aforementioned electrode sheet fault detection method, so that the user can replace the electrode sheet 30 in a timely manner to avoid or reduce the risk of low-temperature burns to the patient; it can also determine whether the electrode sheet 30 is overheated to avoid low-temperature burns to the patient.

[0130] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device), or in conjunction with such instruction execution system, apparatus, or device. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by an instruction execution system, apparatus, or device, or in conjunction with such instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion having one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0131] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0132] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0133] In addition, the terms "first" and "second" used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in this embodiment. Therefore, the features defined by the terms "first" and "second" in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of such features. In the description of the present invention, the word "plurality" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0134] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "installed," "connected," "connect," and "fixed" appearing in the embodiments should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection. It can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements, or an interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood based on the specific implementation.

[0135] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tumor electric field treatment system, characterized in that: include: At least one pair of electrode sheets, each of the electrode sheets comprising a plurality of electrode sheet units and a plurality of temperature detection units, each of the temperature detection units being arranged corresponding to one electrode sheet unit to detect the temperature at the corresponding electrode sheet unit, each of the temperature detection units comprising a thermistor and a diode, the thermistor being used to detect the temperature at the corresponding electrode sheet unit, the plurality of thermistors being divided into a plurality of groups in terms of circuit connection, each group comprising a plurality of thermistors, the plurality of thermistors in each group being connected in parallel and simultaneously turned on; the thermistor having a signal terminal and a ground terminal, the diode having an anode and a cathode, the anode of the diode being connected to the ground terminal of the thermistor, the cathode of the diode serving as the ground terminal of the temperature detection unit, the signal terminal of the thermistor serving as the signal terminal of the temperature detection unit, and the diode being capable of isolating the influence of other thermistors in the same group on the corresponding thermistor; An adapter and an electric field generator, wherein the electric field generator is used to generate an alternating electric signal and transmit the alternating electric signal to each of the electrode sheets through the adapter to generate an alternating electric field through the electrode sheets.

2. The tumor electric field treatment system according to claim 1, characterized in that: The adapter is used to periodically sample the analog temperature signal detected by each temperature detection unit in the electrode sheet. The adapter or the electric field generator determines the detection coding array of the electrode sheet based on the sampled analog temperature signal detected by each temperature detection unit, and compares the detection coding array with a preset standard coding array to identify the fault condition of each temperature detection unit in the electrode sheet.

3. The tumor electric field treatment system according to claim 2, characterized in that: The adapter includes a controller and an ADC sampling unit, the ADC sampling unit is connected to the controller, and the ADC sampling unit is used to sample the analog temperature signal detected by each temperature detection unit, obtain a plurality of AD sampling values, and send the plurality of AD sampling values to the controller.

4. The tumor electric field treatment system according to claim 3, characterized in that: The controller determines the detection code array of the electrode sheet according to the plurality of AD sampling values, and compares the detection code array with the preset standard code array to identify the fault condition of each temperature detection unit in the electrode sheet.

5. The tumor electric field treatment system according to claim 4, characterized in that: The controller is further configured to determine the number of faulty temperature detection units in the electrode sheet when comparing the detection code array with a preset standard code array, and determine whether the electrode sheet needs to be replaced based on the number.

6. The tumor electric field treatment system according to claim 5, characterized in that: The adapter also includes a reminder unit, which is connected to the controller, wherein the controller is further used to control the reminder unit to issue a first reminder message and instruct the electric field generator to continue working when there is a faulty temperature detection unit in the electrode sheet.

7. The tumor electric field treatment system according to claim 6, characterized in that: The controller is further configured to control the reminder unit to issue a second reminder message and instruct the electric field generator to stop working when it is determined that the electrode sheet needs to be replaced.

8. The tumor electric field treatment system according to claim 3, characterized in that: The controller is also used to determine the temperature of the corresponding electrode sheet unit based on the multiple AD sampling values, and when the electrode sheet is identified to be overheated based on the temperature of the corresponding electrode sheet unit, instruct the electric field generator to reduce the amplitude of the alternating electric signal or stop outputting the alternating electric signal.

9. The tumor electric field treatment system according to claim 3, characterized in that: The adapter also includes a serial communication unit, which is connected to the controller, wherein the controller is also used to send the multiple AD sampling values to the electric field generator through the serial communication unit, so that the electric field generator determines the detection code array of the electrode sheet based on the multiple AD sampling values, and compares the detection code array with a preset standard code array to identify the fault condition of each temperature detection unit in the electrode sheet.

10. The tumor electric field treatment system according to claim 9, characterized in that: The electric field generator is further used to determine the number of faulty temperature detection units in the electrode sheet when comparing the detection code array with a preset standard code array, and to determine whether the electrode sheet needs to be replaced based on the number.

11. The tumor electric field treatment system according to claim 9, characterized in that: The electric field generator is further configured to, when a faulty temperature detection unit exists in the electrode sheet, issue a first reminder message and continue to output an alternating electric signal.

12. The tumor electric field treatment system according to claim 9, characterized in that: The electric field generator is further configured to, when it is determined that the electrode sheet needs to be replaced, issue a second reminder message and stop outputting the alternating electric signal.

13. The tumor electric field treatment system according to claim 9, characterized in that: The electric field generator is also used to determine the temperature of the corresponding electrode unit based on the several AD sampling values, and when it is identified that the electrode is overheated based on the temperature of the corresponding electrode unit, reduce the amplitude of the alternating electric signal or stop outputting the alternating electric signal.

14. The tumor electric field treatment system according to any one of claims 2 to 13, characterized in that: The detection code array includes at least one of a first code, a second code and a third code, wherein the first code is used to indicate that the temperature detection unit is in a normal state, the second code is used to indicate that the temperature detection unit is in an open circuit state or an unset state, and the third code is used to indicate that the temperature detection unit is in a short circuit state.

15. The tumor electric field treatment system according to claim 14, characterized in that: The analog temperature signal is represented by a voltage value, and different voltage intervals of the voltage value correspond to different codes.

16. The tumor electric field treatment system according to claim 3, characterized in that: The plurality of electrode sheet units are configured into at least three row groups and at least three column groups, wherein the adapter further comprises: a switch unit, the switch unit including at least one control switch, wherein the signal terminals of the temperature detection units corresponding to each column group are connected together as a temperature sampling point, and the ground terminals of the temperature detection units corresponding to each row group are connected together to a ground pin through a corresponding control switch; The controller is also used to configure the switch state of the control switch; The ADC sampling unit is further configured to simultaneously sample the temperature signal detected by the corresponding temperature detection unit in each row group through the corresponding temperature sampling point.

17. The tumor electric field treatment system according to claim 16, wherein: The adapter further includes: a DC power supply and a voltage dividing unit, wherein the voltage dividing unit includes at least three voltage dividing resistors, and each of the temperature sampling points is connected to the DC power supply via a corresponding voltage dividing resistor.

18. The tumor electric field treatment system according to claim 1, wherein: Also includes: at least one first connector, each first connector being adapted to connect a corresponding electrode pad to the adapter; A second connector is provided, the second connector being adapted to connect the electric field generator to the adapter.

19. The tumor electric field treatment system according to claim 18, wherein: The first connector is configured to connect the adapter to the electrode sheet using a plug-in connector, and the second connector is configured to connect the adapter to the electric field generator using a plug-in connector.

20. An electrode sheet, characterized in that: include: A plurality of electrode sheet units; Multiple temperature detection units, each of which is arranged corresponding to an electrode sheet unit to detect the temperature at the corresponding electrode sheet unit, each of which includes a thermistor and a diode, the thermistor is used to detect the temperature at the corresponding electrode sheet unit, the multiple thermistors are divided into multiple groups in terms of circuit connection, each group includes multiple thermistors, and the multiple thermistors in each group are connected in parallel and are simultaneously turned on; the thermistor has a signal terminal and a ground terminal, the diode has an anode and a cathode, the anode of the diode is connected to the ground terminal of the thermistor, the cathode of the diode serves as the ground terminal of the temperature detection unit, and the signal terminal of the thermistor serves as the signal terminal of the temperature detection unit, and the diode can isolate the influence of other thermistors in the same group on the corresponding thermistor.

21. The electrode sheet according to claim 20, characterized in that The plurality of electrode sheet units are configured into at least three row groups and at least three column groups, wherein the signal ends of the corresponding temperature detection units in each column group are connected together as a temperature sampling point, the ground ends of the corresponding temperature detection units in each row group are commonly connected to a ground pin through a control switch, and the ground ends of the corresponding temperature detection units in different row groups are connected to the ground pin through different control switches, so that the temperature signals detected by the corresponding temperature detection units in each row group are sampled simultaneously by the corresponding temperature sampling points by configuring the switching states of the control switches.

22. A tumor treatment device, characterized in that: include: The tumor electric field therapy system according to any one of claims 1-19, or the electrode sheet according to any one of claims 20-21.

23. A method for detecting electrode failure, characterized in that: Applied to the tumor treating field system according to any one of claims 1 to 19, the method comprising: Acquiring an analog temperature signal detected by each temperature detection unit in the electrode sheet; Determine the detection code array of the electrode sheet according to the analog temperature signal detected by each temperature detection unit; The detection code array is compared with a preset standard code array to identify the fault condition of each temperature detection unit in the electrode sheet.

24. The method according to claim 23, wherein After comparing the detection code array with a preset standard code array, the method further includes: determining the number of faulty temperature detection units in the electrode sheet; Determine whether the electrode sheet needs to be replaced based on the quantity.

25. The method according to claim 23, characterized in that When it is identified that a faulty temperature detection unit exists in the electrode sheet, the method further includes: The tumor electric field treatment system is controlled to issue a first reminder message, and the electric field generator is controlled to continue working.

26. The method according to claim 24, characterized in that When it is determined that the electrode sheet needs to be replaced, the method further includes: The tumor electric field therapy system is controlled to issue a second reminder message, and the electric field generator is controlled to stop working.

27. The method according to any one of claims 23 to 26, characterized in that The detection code array includes at least one of a first code, a second code and a third code, wherein the first code is used to indicate that the temperature detection unit is in a normal state, the second code is used to indicate that the temperature detection unit is in an open circuit state or an unset state, and the third code is used to indicate that the temperature detection unit is in a short circuit state.

28. The method according to claim 23, wherein The temperature signal is represented by a voltage value, and the detection code array of the electrode sheet is determined according to the temperature signal detected by each temperature detection unit, including: determining a voltage interval in which the voltage value lies; Determining a code corresponding to a corresponding temperature detection unit according to a voltage interval in which the voltage value is located, wherein different voltage intervals in which the voltage value is located correspond to different codes; A detection code array of the corresponding electrode sheet is generated according to the code corresponding to each temperature detection unit.

29. The method according to claim 23, wherein Before comparing the detection code array with a preset standard code array, the method further includes: When the electrode sheet that has passed the test is connected to the electric field generator through the adapter, the electric field generator is controlled to work, and the preset standard coding array is determined according to the temperature signal currently detected by each of the temperature detection units.

30. The method according to claim 23, wherein After obtaining the temperature signal detected by each temperature detection unit in the electrode sheet, the method further includes: Determine the temperature of the corresponding electrode unit according to the temperature signal detected by each temperature detection unit; When it is identified that the electrode sheet is over-temperature based on the temperature of the corresponding electrode sheet unit, the electric field generator is controlled to reduce the amplitude of the alternating electric signal or stop outputting the alternating electric signal.

31. A computer-readable storage medium, characterized in that An electrode sheet fault detection program is stored thereon, and when the electrode sheet fault detection program is executed by the processor, the electrode sheet fault detection method according to any one of claims 23-30 is implemented.

32. An adapter for a tumor electric field treatment system, characterized in that: It includes a memory, a processor, and an electrode sheet fault detection program stored in the memory and executable on the processor. When the processor executes the electrode sheet fault detection program, it implements the electrode sheet fault detection method according to any one of claims 23 to 30.

33. An electric field generator for a tumor electric field treatment system, characterized in that: It includes a memory, a processor, and an electrode sheet fault detection program stored in the memory and executable on the processor. When the processor executes the electrode sheet fault detection program, it implements the electrode sheet fault detection method according to any one of claims 23 to 30.

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