Tumor electric field therapeutic apparatus and control method

Abstract

The invention provides a tumor electric field therapeutic apparatus and a control method thereof. The tumor electric field therapeutic apparatus comprises a host which comprises a signal generator and a first controller, and the signal generator is configured to generate an alternating current signal; the adapter comprises a switch unit and a second controller, and the switch unit is configured to receive the alternating current electric signal from the signal generator; and an electrode patch configured to transmit an AC electrical signal through the switch unit to establish a tumor treatment electric field, the first controller configured to control the signal generator not to generate an AC electrical signal in response to determining that communication between the host and the adapter is abnormal, and wherein the first controller is configured to control the signal generator not to generate an AC electrical signal in response to determining that communication between the host and the adapter is abnormal. The second controller is configured to disconnect the switching unit in response to determining that the adapter is abnormally connected to at least one of the host and the electrode patch, thereby disconnecting transmission of the AC electrical signal to the electrode patch. When the tumor electric field therapeutic instrument works abnormally, transmission of alternating current signals is independently controlled through the host and the adapter, and safety is improved.

Description

Technical Field

[0001] The present disclosure relates to tumor treating fields (TTF) technology, and in particular to a tumor treating fields apparatus and a control method. Background Art

[0002] Tumor electric field therapy is a method that uses a low-intensity medium-frequency (for example, 100-300kHz) alternating electric field to prevent the formation of spindle microtubules during mitosis of certain tumor cells, inhibit the separation of intracellular organelles during cell division, and induce apoptosis of cells during mitosis, thereby achieving the effect of treating tumors.

[0003] Compared with traditional cancer treatments, TTF has an innovative mechanism of action. Some physiological characteristics of tumor cells, such as geometric shape and high-frequency mitosis, make them susceptible to TTF. TTF disrupts the normal aggregation of tubulin by exerting directional forces on polar particles (such as macromolecules and organelles) within the cell. These processes may lead to physical damage to the cell membrane and cell apoptosis. At the end of cell mitosis, the structural morphology of the cleavage furrow will lead to an uneven distribution of the electric field around it. At the same time, under the influence of TTF, the electric field intensity at the cleavage furrow is significantly enhanced, and the charged substances in the cell move toward the cleavage furrow, which interferes with or even destroys the formation of the cell structure, and ultimately leads to cell division failure and apoptosis.

[0004] In the related art, TTF is generated and delivered to the patient via a tumor therapy field device. However, during the use of the tumor therapy field device, there is a risk of equipment abnormality. If the delivery of the AC signal to the patient is not stopped in time, it may cause abnormal burns or other dangerous situations to the patient. Therefore, it is necessary to provide a stable and safe tumor therapy field device and a method for establishing a tumor treatment electric field. Summary of the invention

[0005] It would be advantageous to provide a mechanism that alleviates, mitigates, or even eliminates one or more of the above-mentioned problems.

[0006] According to one aspect of the present disclosure, a tumor treatment electric field apparatus is provided, comprising: a host, including a signal generator and a first controller, the signal generator being configured to generate an alternating current signal; an adapter, including a switch unit and a second controller, the switch unit being configured to receive the alternating current signal from the signal generator; and an electrode patch being configured to transmit the alternating current signal through the switch unit to establish a tumor treatment electric field, wherein the first controller is configured to control the signal generator not to generate the alternating current signal in response to determining that there is an abnormal communication between the host and the adapter, and wherein the second controller is configured to disconnect the switch unit in response to determining that there is an abnormal connection between the adapter and at least one of the host and the electrode patch, thereby disconnecting the transmission of the alternating current signal to the electrode patch.

[0007] In some embodiments, the first controller is further configured to determine abnormal communication between the host and the adapter, wherein the abnormal communication between the host and the adapter includes at least one of the following: abnormal electrode patch temperature, abnormal connection between the host and the adapter, or the host does not meet the startup conditions.

[0008] In some embodiments, the adapter also includes a temperature detector electrically connected to the electrode patch, the temperature detector is configured to detect the temperature of the electrode patch and generate a temperature signal representing the temperature of the electrode patch, and the temperature signal is transmitted to the host to determine whether the temperature of the electrode patch is abnormal.

[0009] In some embodiments, the host also includes a first transceiver, which is electrically connected to the first controller, and the adapter also includes a second transceiver, which is electrically connected to the first transceiver to enable communication between the host and the adapter, and the second transceiver is also electrically connected to the temperature detector to transmit the temperature signal from the temperature detector to the first transceiver.

[0010] In some embodiments, the first controller is configured to determine that the electrode patch temperature is abnormal by determining the following conditions: the temperature signal is abnormal; and the filtered temperature signal is abnormal.

[0011] In some embodiments, a first threshold time is preset in the first controller, which is configured to determine that the connection between the host and the adapter is abnormal by determining the following conditions: the first connection between the host and the adapter is abnormal; and the host and the adapter are abnormally connected again within the first threshold time after the first connection abnormality.

[0012] In some embodiments, the first controller is configured to determine that the host does not meet the startup condition by determining at least one of the following conditions: the startup signal is not triggered, or the first controller self-test is abnormal.

[0013] In some embodiments, a second threshold time is preset in the second controller, which is also configured to determine at least one of the following: an abnormal connection between the adapter and the host, or an abnormal connection between the adapter and the electrode patch.

[0014] In some embodiments, the second controller is configured to determine that the connection between the adapter and the host is abnormal by determining the following conditions: the first connection between the adapter and the host is abnormal; and the second connection between the adapter and the host is abnormal within a second threshold time after the first abnormal connection.

[0015] In some embodiments, the second controller is configured to determine that the connection between the adapter and the electrode patch is abnormal by determining the following conditions: the first connection between the adapter and the electrode patch is abnormal; and the filtered temperature signal representing the temperature of the electrode patch indicates that the second connection between the adapter and the electrode patch is abnormal.

[0016] According to another aspect of the present disclosure, a control method for a tumor electric field therapy device is provided, comprising: in response to determining that there is an abnormal communication between a host and an adapter, a first controller controls a signal generator not to generate an alternating current signal; and in response to determining that there is an abnormal connection between the adapter and at least one of the host and an electrode patch, a second controller disconnects a switch unit, thereby disconnecting the transmission of the alternating current signal to the electrode patch.

[0017] In some embodiments, in response to determining that the host and the adapter communicate abnormally, before the first controller controls the signal generator not to generate an AC signal, it also includes: the first controller determines that the host and the adapter communicate abnormally, wherein the abnormal communication between the host and the adapter includes at least one of the following items: abnormal electrode patch temperature, abnormal connection between the host and the adapter, or the host does not meet the startup conditions.

[0018] In some embodiments, the first controller determines that the electrode patch temperature is abnormal by determining the following conditions: a temperature signal representing the temperature of the electrode patch is abnormal; and the filtered temperature signal is abnormal.

[0019] In some embodiments, the first controller determines that the connection between the host and the adapter is abnormal by determining the following conditions: the first connection between the host and the adapter is abnormal; and the host and the adapter are abnormally connected again within a first threshold time after the first abnormal connection.

[0020] In some embodiments, the first controller determines that the host does not meet the startup condition by determining at least one of the following conditions: the startup signal is not triggered, or the first controller self-test is abnormal.

[0021] In some embodiments, in response to determining that the adapter is abnormally connected to at least one of the host and the electrode patch, before the second controller disconnects the switch unit, it also includes: the second controller determines at least one of the following: the adapter is abnormally connected to the host, or the adapter is abnormally connected to the electrode patch.

[0022] In some embodiments, the second controller determines that the connection between the adapter and the host is abnormal by determining the following conditions: the first connection between the adapter and the host is abnormal; and the second connection between the adapter and the host is abnormal within a second threshold time after the first abnormal connection.

[0023] In some embodiments, the second controller determines that the connection between the adapter and the electrode patch is abnormal by determining the following conditions: the first connection between the adapter and the electrode patch is abnormal; and the filtered temperature signal representing the temperature of the electrode patch indicates that the second connection between the adapter and the electrode patch is abnormal.

[0024] These and other aspects of the disclosure will be apparent from and elucidated with reference to the embodiments described hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Further details, features and advantages of the present disclosure are disclosed in the following description of example embodiments in conjunction with the accompanying drawings, in which:

[0026] Figure 1 is a schematic block diagram of a tumor treatment field apparatus according to an exemplary embodiment;

[0027] Figure 2 is a schematic block diagram of the internal structure of a tumor treatment field apparatus according to an exemplary embodiment;

[0028] Figure 3 is a schematic flow chart of a control method of a tumor therapeutic field apparatus according to an exemplary embodiment;

[0029] Figure 4 is a schematic flow chart of a control method of a host of a tumor electric field therapy apparatus according to an exemplary embodiment;

[0030] Figure 5 is a schematic flow chart of a method for controlling an adapter of a tumor electric field therapy apparatus according to an exemplary embodiment. DETAILED DESCRIPTION

[0031] Tumor electric field therapy is a non-invasive anti-mitotic treatment method that transmits low-intensity medium-frequency alternating current signals to the lesion site, thereby interfering with the mitosis of tumor cells, inhibiting tumor cell proliferation, interfering with tumor cell migration, and reducing the tumor's ability to repair DNA.

[0032] The tumor electric field therapy device mainly includes a host, an adapter electrically connected to the host to achieve signal transmission, and an electrode patch electrically connected to the host through the adapter. The electrode patch is applied to the skin of the human body corresponding to the lesion, so that the alternating current signal generated by the signal generator in the host is applied to the area where the tumor is located to achieve tumor electric field therapy.

[0033] During the process of tumor electric field therapy, there may be a risk of equipment abnormality. If the delivery of AC signals to the patient cannot be stopped in time, it may cause abnormal burns or other dangerous situations to the patient. Existing treatment equipment usually only controls the signal generator to stop outputting AC signals through the control device of the host. This single control method may fail when the host is abnormal. Therefore, in order to improve safety, it is necessary to design a redundant control method for the tumor electric field therapy device.

[0034] Figure 1 FIG. 1 is a schematic block diagram of a tumor electric field treatment apparatus 100 according to an exemplary embodiment. Figure 1As shown, the tumor electric field therapy device 100 includes a host 110, an adapter 120 electrically connected to the host 110, and an electrode patch 130 electrically connected to the host 110 through the adapter 120.

[0035] Figure 2 yes Figure 1 The schematic block diagram of the internal structure of the tumor electric field therapeutic apparatus 100 is shown in FIG. Figure 2 As shown, the host 110 includes a signal generator 111 and a first controller 113. The signal generator 111 is configured to generate an alternating current signal. The first controller 113 is electrically connected to the signal generator 111 and can control whether the signal generator 111 generates an alternating current signal. When the host 110 and the adapter 120 communicate abnormally, the first controller 113 controls the signal generator 111 not to generate an alternating current signal.

[0036] The adapter 120 includes a switch unit 121 and a second controller 124. The switch unit 121 is configured to receive an AC signal from the signal generator 111. The second controller 124 is electrically connected to the switch unit 121 and can control the on and off of the switch unit 121. When the adapter 120 is abnormally connected to at least one of the host 110 and the electrode patch 130, the second controller 124 controls the switch unit 121 to disconnect, thereby disconnecting the transmission of the AC signal to the electrode patch 130.

[0037] The electrode patch 130 is configured to receive an AC signal through the switch unit 121 to transmit the AC signal.

[0038] In the tumor electric field therapy device 100, a first controller 113 and a second controller 124 are respectively provided inside the host 110 and the adapter 120. The first controller 113 and the second controller 124 are independent of each other, and respectively perform corresponding controls according to different abnormal situations during the operation of the tumor electric field therapy device 100. When an abnormality occurs in the tumor electric field therapy device 100, the signal generator 111 can be shut down in time or the control switch unit 121 can be controlled to disconnect the transmission circuit of the AC signal, so that the AC signal will not be transmitted to the electrode patch 130, thereby improving the safety of the tumor electric field therapy device 100.

[0039] In some embodiments, the first controller 113 is also configured to determine that there is abnormal communication between the host 110 and the adapter 120, wherein the abnormal communication between the host 110 and the adapter 120 includes at least one of the following items: abnormal temperature of the electrode patch 130, abnormal connection between the host 110 and the adapter 120, or the host 110 does not meet the startup conditions.

[0040] In some embodiments, the adapter 120 further includes a temperature detector 123 and a second transceiver 122. The second transceiver 122 is electrically connected to the temperature detector 123. The temperature detector 123 is also electrically connected to the electrode patch 130, and can detect the temperature of the electrode patch 130 and generate a temperature signal representing the temperature of the electrode patch 130. The host 110 further includes a first transceiver 112. The first transceiver 112 is electrically connected to the first controller 113 and the second transceiver 122, respectively. The temperature signal generated by the temperature detector 123 can be transmitted to the first transceiver 112 through the second transceiver 122, so that the first controller 113 can determine whether the temperature of the electrode patch 130 is abnormal.

[0041] In some embodiments, when the first controller 113 determines that the temperature signal of the electrode patch 130 is abnormal, the temperature signal representing the temperature of the electrode patch 130 is filtered, and whether the temperature of the electrode patch 130 is abnormal is determined according to the filtered temperature signal. When the temperature of the electrode patch 130 is determined to be abnormal according to the filtered temperature signal, the first controller 113 determines that the temperature of the electrode patch 130 is abnormal, thereby controlling the signal generator 111 to stop generating the AC signal and causing the host 110 to enter the standby state. In this example, the first controller 113 is preset with a temperature range of the electrode patch 130, which is 0°C-50°C.

[0042] In some embodiments, the first controller 113 is also preset with a first threshold time. When the first controller 113 determines that the host 110 and the adapter 120 are abnormally connected for the first time, the host 110 and the adapter 120 are controlled to reconnect and trigger a timeout count. When the host 110 and the adapter 120 are still abnormally connected after exceeding the preset first threshold time, the first controller 113 determines that the host 110 and the adapter 120 are abnormally connected, thereby controlling the signal generator 111 not to generate an AC signal and putting the host 110 in a standby state. In this example, the first threshold time is 2s.

[0043] In some embodiments, when the first controller 113 determines that the start signal is not triggered or the first controller 113 self-checks abnormally, the first controller 113 determines that the host 110 does not meet the start conditions, thereby controlling the signal generator 111 not to generate an AC signal and putting the host 110 in a standby state.

[0044] In some embodiments, the second controller 124 is further configured to determine at least one of the following: the connection between the adapter 120 and the host 110 is abnormal, or the connection between the adapter 120 and the electrode patch 130 is abnormal.

[0045] In some embodiments, the second controller 124 is preset with a second threshold time. When the second controller 124 determines that the first connection between the adapter 120 and the host 110 is abnormal, the adapter 120 is controlled to reconnect with the host 110 and trigger a timeout count. When the adapter 120 and the host 110 are still abnormally connected after exceeding the preset second threshold time, the second controller 124 determines that the connection between the adapter 120 and the host 110 is abnormal, and controls the switch unit 121 to disconnect, so that the AC signal generated by the signal generator 111 cannot be transmitted to the electrode patch 130. In this example, the second threshold time is also 2s.

[0046] In some embodiments, when the second controller 124 determines that the first connection between the adapter 120 and the electrode patch 130 is abnormal, the temperature signal representing the temperature of the electrode patch 130 is filtered, and whether the connection between the adapter 120 and the electrode patch 130 is abnormal is determined according to the filtered temperature signal. When it is determined that the adapter 120 and the electrode patch 130 are still abnormally connected according to the filtered temperature signal, the second controller 124 determines that the connection between the adapter 120 and the electrode patch 130 is abnormal, thereby controlling the switch unit 121 to disconnect, so that the AC signal generated by the signal generator 111 cannot be transmitted to the electrode patch 130. In this example, the temperature range of the electrode patch 130 is preset in the second controller 124, and the temperature range is 0°C-50°C.

[0047] To summarize, a first controller 113 and a second controller 124 are respectively provided inside the host 110 and the adapter 120. The first controller 113 controls whether the signal generator 111 generates an AC signal based on whether there is communication abnormality between the host 110 and the adapter 120. The second controller 124 controls whether the switch unit 121 is disconnected based on whether there is an abnormal connection between the adapter 120 and the host 110 and whether there is an abnormal connection between the adapter 120 and the electrode patch 130. This allows the host 110 and the adapter 120 to independently control the transmission circuit of the AC signal, thereby improving the reliability of the tumor electric field therapy device 100 and reducing the possibility of dangerous situations.

[0048] Figure 3 yes Figure 1 FIG. 3 is a schematic flow chart of a control method 300 of the tumor electric field therapy apparatus 100. Figure 3 As shown, the control method 300 includes:

[0049] In step 320, in response to determining that the communication between the host 110 and the adapter 120 is abnormal, the first controller 113 controls the signal generator 111 not to generate an AC signal;

[0050] In step 340 , in response to determining that the adapter 120 is abnormally connected to at least one of the host 110 and the electrode patch 130 , the second controller 124 disconnects the switch unit 121 , thereby disconnecting the transmission of the AC signal to the electrode patch 130 .

[0051] In the tumor electric field therapy device 100, the first controller 113 in the host 110 independently controls whether the signal generator 111 generates an AC signal, and the second controller 124 in the adapter 120 independently controls whether the switch unit 121 is disconnected, thereby achieving that both the host 110 and the adapter 120 can independently control the conduction or disconnection of the communication circuit that transmits the AC signal to the electrode patch 130, thereby improving the safety of the tumor electric field therapy device 100 during use.

[0052] In some embodiments, step 310 is also included before step 320, and step 310 includes: the first controller 111 determines that the communication between the host 110 and the adapter 120 is abnormal, wherein the communication abnormality between the host 110 and the adapter 120 includes at least one of the following items: abnormal temperature of the electrode patch 130, abnormal connection between the host 110 and the adapter 120, or the host 110 does not meet the startup conditions.

[0053] In some embodiments, step 330 is included before step 340 , and step 330 includes: the second controller 124 determines at least one of the following: the connection between the adapter 120 and the host 110 is abnormal, or the connection between the adapter 120 and the electrode patch 130 is abnormal.

[0054] Although the various operations are depicted in the drawings as being in a particular order, this should not be understood as requiring that the operations must be performed in the particular order shown or in a sequential order, nor should it be understood as requiring that all the operations shown must be performed to obtain the desired results. For example, step 340 may be performed before step 320, or concurrently with step 320, and for another example, step 330 may be performed before step 310, or concurrently with step 310.

[0055] Figure 4 is a schematic flow chart illustrating a control method of the host 110 of the tumor electric field therapeutic device 100. In some embodiments, please refer to Figure 4After the power is turned on, the host 110 runs the environment loading (loading the operating system, file system, etc.), performs hardware initialization (such as ADC, serial port, PWM, DAC and other hardware), and establishes a connection with the adapter 120 and the electrode patch 130. The first controller 113 determines whether the host 110 has the startup conditions. When the host 110 does not have the startup conditions, the first controller 113 controls the signal generator 111 not to generate an AC signal. The host 110 does not have the startup conditions, including at least one of the startup signal not being triggered or the first controller 113 self-test being abnormal. The first controller 113 determines whether to trigger the startup signal. If the startup signal is not triggered, the first controller 113 controls the signal generator 111 not to generate an AC signal. At this time, the host 110 is in a standby state. If the startup signal is triggered, the first controller 113 performs a self-test. If the self-test is abnormal, the first controller 113 controls the signal generator 111 not to generate an AC signal. At this time, the host 110 is still in a standby state.

[0056] When the start signal is triggered and the first controller 113 self-checks normally, the host 110 meets the start condition. The first controller 113 further determines whether the connection between the host 110 and the adapter 120 is abnormal. When the connection between the host 110 and the adapter 120 is abnormal, the first controller 113 controls the signal generator 111 not to generate an AC signal, and the host 110 is in a standby state.

[0057] In some embodiments, the first controller 113 is also preset with a first threshold time. When the host 110 and the adapter 120 are abnormally connected, the first controller 113 controls the host 110 and the adapter 120 to reconnect and triggers a timeout count. When the host 110 and the adapter 120 still fail to connect after exceeding the preset first threshold time, the first controller 113 controls the signal generator 111 not to generate an AC signal, and the host 110 is in a standby state. When the host 110 and the adapter 120 are successfully reconnected within the preset first threshold time, the first controller 113 re-determines whether the connection between the host 110 and the adapter 120 is abnormal. In this example, the first threshold time is 2s.

[0058] When the host 110 is connected to the adapter 120 normally, the first controller 113 controls the signal generator 111 to generate an AC signal and determines whether the temperature of the electrode patch 130 is abnormal. When the temperature of the electrode patch 130 is normal, the first controller 113 controls the signal generator 111 to continue to generate an AC signal and re-determines whether to trigger a start signal. When the temperature of the electrode patch 130 is abnormal, the first controller 113 controls the signal generator 111 to stop generating an AC signal, and the host 110 enters a standby state.

[0059] In some embodiments, when the temperature of the electrode patch 130 is abnormal, the first controller 113 filters the temperature signal representing the temperature of the electrode patch 130, and determines whether the temperature of the electrode patch 130 is abnormal according to the filtered temperature signal. When the temperature of the electrode patch 130 is determined to be abnormal according to the filtered temperature signal, the first controller 113 controls the signal generator 111 to stop generating the AC signal, so that the host 110 enters the standby state. When the temperature of the electrode patch 130 is determined to be normal according to the filtered temperature signal, the first controller 113 re-determines whether the temperature of the electrode patch 130 is abnormal. In this example, the temperature range of the electrode patch 130 is preset in the first controller 113, and the temperature range is 0°C-50°C.

[0060] Figure 5 is a schematic flow chart illustrating a control method of the adapter 120 of the tumor electric field therapeutic apparatus 100. In some embodiments, please refer to Figure 5 After the power is turned on, the adapter 120 runs the environment load (loads the operating system), performs hardware initialization (ADC, serial port, GPIO and other hardware), and establishes a connection with the host 110 and the electrode patch 130. The second controller 124 determines whether the connection between the adapter 120 and the host 110 is abnormal. When the connection between the adapter 120 and the host 110 is abnormal, the second controller 124 controls the switch unit 121 to disconnect, so that the AC signal generated by the signal generator 111 cannot be transmitted to the electrode patch 130.

[0061] In some embodiments, a second threshold time is preset in the second controller 124. When the adapter 120 is abnormally connected to the host 110, the second controller 124 controls the adapter 120 to reconnect to the host 110 and triggers a timeout count. When the adapter 120 and the host 110 still fail to connect after exceeding the preset second threshold time, the second controller 124 controls the switch unit 121 to disconnect, so that the AC signal generated by the signal generator 111 cannot be transmitted to the electrode patch 130. When the adapter 120 and the host 110 are successfully reconnected within the preset second threshold time, the second controller 124 re-determines whether the connection between the adapter 120 and the host 110 is abnormal. In this example, the second threshold time is also 2s.

[0062] When the adapter 120 is connected to the host 110 normally, the second controller 124 determines whether the connection between the adapter 120 and the electrode patch 130 is abnormal. When the connection between the adapter 120 and the electrode patch 130 is normal, the second controller 124 controls the switch unit 121 to close, so that the AC signal generated by the signal generator 111 is transmitted to the electrode patch 130, and re-determines whether the connection between the adapter 120 and the host 110 is abnormal. When the connection between the adapter 120 and the electrode patch 130 is abnormal, the second controller 124 controls the switch unit 121 to open, so that the AC signal generated by the signal generator 111 cannot be transmitted to the electrode patch 130.

[0063] In some embodiments, when the adapter 120 is abnormally connected to the electrode patch 130, the second controller 124 filters the temperature signal representing the temperature of the electrode patch 130, and determines whether the connection between the adapter 120 and the electrode patch 130 is abnormal according to the filtered temperature signal. When it is determined that the adapter 120 is abnormally connected to the electrode patch 130 according to the filtered temperature signal, the second controller 124 controls the switch unit 121 to disconnect, so that the AC signal generated by the signal generator 111 cannot be transmitted to the electrode patch 130. When it is determined that the adapter 120 is normally connected to the electrode patch 130 according to the filtered temperature signal, the second controller 124 re-determines whether the adapter 120 is abnormally connected to the electrode patch 130. In this example, the temperature range of the electrode patch 130 is preset in the second controller 124, and the temperature range is 0°C-50°C.

[0064] Although the present disclosure has been illustrated and described in detail in the drawings and the foregoing description, such illustration and description should be considered illustrative and schematic, not restrictive; the present disclosure is not limited to the disclosed embodiments. By studying the drawings, the disclosure and the appended claims, those skilled in the art will be able to understand and implement variations to the disclosed embodiments when practicing the claimed subject matter. In the claims, the word "comprising" does not exclude other elements or steps that are not listed, the indefinite article "a" or "an" does not exclude a plurality, the term "plurality" means two or more, and "based on" should be interpreted as "based at least in part on". The mere fact that certain measures are recorded in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims

1. A tumor electric field therapeutic apparatus, characterized in that: include: A host, comprising a signal generator and a first controller, wherein the signal generator is configured to generate an alternating current signal; an adapter, comprising a switch unit and a second controller, wherein the switch unit is configured to receive the AC power signal from the signal generator; as well as The electrode patch is configured to transmit the alternating current signal through the switch unit to establish a tumor treatment electric field, The first controller is configured to control the signal generator not to generate the AC signal in response to determining that the host and the adapter communicate abnormally, and The second controller is configured to disconnect the switch unit in response to determining that the adapter is abnormally connected to at least one of the host and the electrode patch, thereby disconnecting the AC signal from being transmitted to the electrode patch.

2. The tumor electric field therapeutic apparatus according to claim 1, characterized in that: The first controller is also configured to determine that the communication between the host and the adapter is abnormal, wherein the communication between the host and the adapter includes at least one of the following: abnormal temperature of the electrode patch, abnormal connection between the host and the adapter, or the host does not meet the startup conditions.

3. The tumor electric field therapeutic apparatus according to claim 2, characterized in that: The adapter also includes a temperature detector electrically connected to the electrode patch, wherein the temperature detector is configured to detect the temperature of the electrode patch and generate a temperature signal representing the temperature of the electrode patch, wherein the temperature signal is transmitted to the host to determine whether the temperature of the electrode patch is abnormal.

4. The tumor electric field therapeutic apparatus according to claim 3, characterized in that: The host also includes a first transceiver, which is electrically connected to the first controller, and the adapter also includes a second transceiver, which is electrically connected to the first transceiver to achieve communication between the host and the adapter, and the second transceiver is also electrically connected to the temperature detector to transmit the temperature signal from the temperature detector to the first transceiver.

5. The tumor electric field therapeutic apparatus according to claim 3, characterized in that: The first controller is configured to determine that the electrode patch temperature is abnormal by determining the following conditions: The temperature signal is abnormal; and The filtered temperature signal is abnormal.

6. The tumor electric field therapeutic apparatus according to claim 2, characterized in that: The first controller is preset with a first threshold time, which is configured to determine whether the connection between the host and the adapter is abnormal by determining the following conditions: The first connection between the host and the adapter is abnormal; and The host and the adapter are abnormally connected again within a first threshold time after the first abnormal connection.

7. The tumor electric field therapeutic apparatus according to claim 2, characterized in that: The first controller is configured to determine that the host does not meet the startup condition by determining at least one of the following conditions: a startup signal is not triggered, or a self-test of the first controller is abnormal.

8. The tumor electric field therapeutic apparatus according to any one of claims 1 to 7, characterized in that: The second controller is further configured to determine at least one of the following: an abnormal connection between the adapter and the host, or an abnormal connection between the adapter and the electrode patch.

9. The tumor electric field therapeutic apparatus according to claim 8, characterized in that: The second controller is preset with a second threshold time, which is configured to determine that the connection between the adapter and the host is abnormal by determining the following conditions: The first connection between the adapter and the host is abnormal; and The adapter and the host are abnormally connected again within a second threshold time after the first abnormal connection.

10. The tumor electric field therapeutic apparatus according to claim 8, characterized in that: The second controller is configured to determine that the connection between the adapter and the electrode patch is abnormal by determining the following conditions: The first connection between the adapter and the electrode patch is abnormal; and The filtered temperature signal representing the temperature of the electrode patch indicates that the reconnection between the adapter and the electrode patch is abnormal.

11. A control method for a tumor electric field therapeutic apparatus as claimed in any one of claims 1 to 10, characterized in that: include: In response to determining that the host and the adapter are communicating abnormally, the first controller controls the signal generator not to generate the AC signal; as well as In response to determining that the adapter is abnormally connected to at least one of the host and the electrode patch, the second controller disconnects the switch unit, thereby disconnecting the AC power signal from being transmitted to the electrode patch.

12. The method according to claim 11, characterized in that Before the first controller controls the signal generator not to generate the AC signal in response to determining that the communication between the host and the adapter is abnormal, the method further includes: The first controller determines that the communication between the host and the adapter is abnormal, wherein the communication between the host and the adapter includes at least one of the following: abnormal temperature of the electrode patch, abnormal connection between the host and the adapter, or the host does not meet the startup conditions.

13. The method according to claim 12, characterized in that The first controller determines that the electrode patch temperature is abnormal by determining the following conditions: The temperature signal indicating the temperature of the electrode patch is abnormal; and The filtered temperature signal is abnormal.

14. The method according to claim 12, characterized in that The first controller determines that the connection between the host and the adapter is abnormal by determining the following conditions: The first connection between the host and the adapter is abnormal; and The host and the adapter are abnormally connected again within a first threshold time after the first abnormal connection.

15. The method according to claim 12, characterized in that The first controller determines that the host does not meet the startup condition by determining at least one of the following conditions: a startup signal is not triggered, or a self-test of the first controller is abnormal.

16. The method according to any one of claims 11 to 15, characterized in that In response to determining that the adapter is abnormally connected to at least one of the host and the electrode patch, before the second controller disconnects the switch unit, the second controller further includes: The second controller determines at least one of the following: the adapter is abnormally connected to the host, or the adapter is abnormally connected to the electrode patch.

17. The method according to claim 16, characterized in that The second controller determines that the connection between the adapter and the host is abnormal by determining the following conditions: The first connection between the adapter and the host is abnormal; and The adapter and the host are abnormally connected again within a second threshold time after the first abnormal connection.

18. The method according to claim 16, characterized in that The second controller determines that the connection between the adapter and the electrode patch is abnormal by determining the following conditions: The first connection between the adapter and the electrode patch is abnormal; and The filtered temperature signal representing the temperature of the electrode patch indicates that the reconnection between the adapter and the electrode patch is abnormal.

Images