CN218833404U - Tumor electric field treatment system, electrode plate thereof and tumor treatment equipment - Google Patents

Abstract

The utility model discloses a tumour electric field treatment system and electrode slice, tumour treatment equipment thereof, wherein, the electrode slice includes: a substrate; the utility model provides a plurality of electrode slice units of setting on the base plate, a plurality of temperature sensor and multiplexing unit, alternating voltage can be applyed to every electrode slice unit, every temperature sensor corresponds an electrode slice unit setting, multiplexing unit links to each other with every temperature sensor, multiplexing unit is configured to the analog temperature signal timesharing output that detects every temperature sensor, thereby can be under the condition that does not increase cable sinle silk quantity, reach bigger temperature sensor coverage, the heavy burden of electrode slice is too big, the effect of applying of electrode slice has been kept, the output of electrode slice is analog temperature signal simultaneously, avoided setting up ADC sampling unit etc. on the electrode slice, the whole weight of electrode slice has further been reduced, the effect of applying of electrode slice has been improved.

Description

Tumor electric field treatment system, electrode plate thereof and tumor treatment equipment

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a tumour electric field treatment system and electrode slice, tumour treatment equipment thereof.

Background

The tumor electric field therapy is a tumor therapy method which utilizes an electric field generator to generate a low-intensity medium-high frequency alternating electric field to interfere the mitosis process of tumor cells. The electric field applied by the treatment method can affect tubulin aggregation, prevent spindle formation, inhibit mitosis process, and induce cancer cell apoptosis.

At present, the tumor electric field therapy system mainly includes an electric field generating device, a switching device electrically connected to the electric field generating device, and a plurality of pairs of electrode plates electrically connected to the electric field generating device through the switching device. The electric field generating device transmits alternating electric signals for tumor electric field treatment to each electrode plate through the switching device, and then the alternating electric fields are applied to the tumor part of the patient through the electrode plates to carry out the tumor electric field treatment. Wherein, when the electric field was applied to the patient on physically, can gather heat in the relevant position department that the electrode slice subsides applied the skin, consequently need real-time supervision electrode slice to apply the temperature that corresponds the body surface at patient's tumour position, when the body surface temperature was too high, need in time adjust alternating electric field's intensity, avoid the high temperature to lead to patient's skin low temperature scald.

In the related art, each electrode plate is provided with a thermistor element on the corresponding electrode unit, and the plurality of thermistor elements are connected in parallel with each other, and the temperature change of the corresponding electrode unit is monitored in real time through the resistance value change of the thermistor element. For example, in an electrode sheet having 9 electrode units, 8 thermistor elements are provided, and the resistance values of the 8 thermistor elements are transmitted through a 10-core cable, the 10-core cable including 1 alternating current signal line (AC line), 1 ground line, 8 signal lines, the coverage of the thermistor elements in the electrode sheet being about 89% (8/9 ≈ 0.89). When the number of the electrode units is increased, if the number of the thermistor elements is kept unchanged, the phenomenon that the skin of a patient is scalded at a low temperature easily occurs. For example, 8 thermosensitive electrode elements are arranged in an electrode plate with 16 electrode units, the coverage rate of the thermistor elements in the electrode plate is about 50% (8/16 = 0.5), namely, half of the temperature of the electrode units cannot be monitored, and the phenomenon of low-temperature skin scald of a patient is easy to occur. And if all set up a thermistor component on every electrode unit and keep thermistor component's coverage, then just need the cable of more sinle silks, but can lead to the cable to become thick like this, the compliance sclerosis of cable, increase the fixed degree of difficulty of cable, the holistic weight of electrode slice will increase because of the increase of cable sinle silks simultaneously, not only can influence the adhesion effect between the electrode slice and the corresponding body surface of patient's tumour position, still can increase patient's heavy burden, arouse the discomfort.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model discloses a first aim at provides an electrode slice for tumour electric field treatment system, can reach bigger temperature sensor coverage under the condition that does not increase first cable core quantity, avoided the heavy burden of electrode slice too big, kept the subsides of electrode slice and applied the effect, the output of electrode slice is analog temperature signal simultaneously, avoided setting up ADC sampling unit etc. on the electrode slice, further reduced the whole weight of electrode slice, improved the subsides effect of electrode slice.

The second objective of the present invention is to provide an electric field tumor treatment system.

A third object of the present invention is to provide a tumor therapy apparatus.

To achieve the above object, the present invention provides an electrode plate for tumor electric field therapy system, comprising: a substrate; the temperature sensor comprises a plurality of electrode sheet units, a plurality of temperature sensors and a multiplexing unit, wherein the electrode sheet units are arranged on the substrate, alternating voltage can be applied to each electrode sheet unit, each temperature sensor is arranged corresponding to one electrode sheet unit, the multiplexing unit is connected with each temperature sensor, and the multiplexing unit is configured to output analog temperature signals detected by each temperature sensor in a time-sharing mode.

Further, each of the temperature sensors includes a ground terminal and a signal terminal, the multiplexing unit has a plurality of signal input terminals, the ground terminals of the plurality of temperature sensors are commonly connected to a ground pin, and the signal terminal of each of the temperature sensors is connected to one of the signal input terminals of the multiplexing unit.

Further, the multiplexing unit has a ground terminal connected to a ground pin.

Further, the number of signal input terminals of the multiplexing unit is equal to or greater than the number of temperature sensors.

Further, the multiplexing unit includes a first analog multiplexing switch, the first analog multiplexing switch includes a signal output terminal, an enable control terminal and at least one channel control terminal, a selection channel is respectively disposed between the signal output terminal and each signal input terminal of the multiplexing unit, and the first analog multiplexing switch is configured to control the selection channel according to signals received by the enable control terminal and the at least one channel control terminal.

Further, the first analog multiplexing switch further comprises a decoder configured to: when the enabling control terminal receives a channel selection enabling signal, the selecting channels are controlled to be respectively and sequentially conducted according to the channel control signal received by the channel control terminal, and the analog temperature signals detected by the temperature sensors are output in a time-sharing mode.

Furthermore, each selection channel is provided with an analog switch element, a control end of the analog switch element is connected with the decoder, and the analog switch element is controlled by the decoder to turn on or off the corresponding selection channel.

Further, the multiplexing unit further includes a second analog multiplexing switch and a phase inverter, the phase inverter has an input end and an output end, the input end of the phase inverter is connected with the enable control terminal of the first analog multiplexing switch, the second analog multiplexing switch has an enable control terminal connected with the output end of the phase inverter, a plurality of channel control terminals correspondingly connected with each channel control terminal of the first analog multiplexing switch, and a signal output terminal connected with the signal output terminal of the first analog multiplexing switch.

Further, the channel control terminals of the first analog multiplexing switch and the second analog multiplexing switch are 4.

Further, the first analog multiplexing switch and the second analog multiplexing switch each have 16 signal input terminals.

Furthermore, each channel control terminal is correspondingly provided with 1 channel control line, the enable control terminal of the first analog multiplexing switch is correspondingly provided with 1 enable control line, the signal output terminal of the second analog multiplexing switch and the signal output terminal of the first analog multiplexing switch share 1 channel output line, the grounding terminal of the multiplexing unit is correspondingly provided with 1 grounding wire, the power supply terminal of the multiplexing unit is correspondingly provided with 1 direct current power supply wire, the grounding pin is correspondingly provided with 1 grounding wire, and the electrode plate units are correspondingly provided with 1 alternating signal line.

Further, the temperature sensor is a thermistor.

Further, the channel output line is connected to a direct current power supply through a voltage dividing resistor.

Further, the electrode sheet unit is a dielectric element.

Further, the dielectric element is a ceramic sheet.

Furthermore, each electrode sheet unit is provided with a through hole, and the temperature sensor is arranged in the through hole.

Further, the plurality of electrode sheet units are arranged in an array.

The utility model also provides a tumour electric field treatment system, include: at least one pair of the electrode plates; the electric field generator is used for generating an alternating electric signal and transmitting the alternating electric signal to each electrode plate through the adaptor, and the adaptor is used for carrying out AD sampling on the analog temperature signal so as to obtain a temperature sampling signal and transmitting the temperature sampling signal to the electric field generator.

Further, the method also comprises the following steps: at least one pair of first connectors, each said first connector adapted to connect a respective electrode pad to said adaptor; a second connector adapted to connect the electric field generator to the adaptor.

Further, the first connector is configured to connect the adaptor to the electrode pad by means of a socket connector, and the second connector is configured to connect the adaptor to the electric field generator by means of a socket connector.

Furthermore, the adapter comprises a controller, a serial communication unit, an ADC (analog to digital converter) sampling unit and at least two I/O control units, wherein the controller is respectively connected with the serial communication unit, the ADC sampling unit and each I/O control unit, the controller outputs a channel control signal to the multiplexing unit in the corresponding electrode plate through each I/O control unit, the multiplexing unit in the corresponding electrode plate outputs analog temperature signals detected by the temperature sensors connected correspondingly in a time-sharing mode, the ADC sampling unit performs AD sampling on the analog temperature signals, and the serial communication unit transmits the temperature sampling signals to the electric field generator.

Furthermore, every the first connector with link to each other through the alternating signal line between the second connector, the second connector with link to each other through receiving the data line and sending the data line between the serial communication unit, the VCC pin of second connector with the feeder ear of controller links to each other, the GND pin ground of second connector, every sampling end of ADC sampling unit through corresponding first connector with the output of multiplex unit links to each other, every the output of IO the control unit pass through first connector with the enable end and the channel control end of multiplex unit link to each other.

Furthermore, the VCC pin of the second connector is connected to the corresponding sampling end of the ADC sampling unit through a corresponding voltage dividing resistor.

Furthermore, the number of the electrode plates is 4.

The utility model also provides a tumor treatment equipment, include: at least one pair of the electrode plates or the tumor electric field treatment system.

The utility model discloses tumour electric field treatment system, the electrode slice of equipment, through set up the multiplexing unit on the base plate, and link to each other with a plurality of temperature sensor that set up on the base plate, output with the analog temperature signal timesharing that detects every temperature sensor, can be under the condition that does not increase cable sinle silk quantity, reach bigger temperature sensor coverage, multiplexing unit has only been set up on the electrode slice, it is too big to have avoided the heavy burden that traditional electrode slice cable sinle silk quantity increases by a wide margin and leads to, the effect of applying of electrode slice has been kept, the output of electrode slice is analog temperature signal simultaneously, avoided setting up ADC sampling unit etc. on the electrode slice, the whole weight increase of electrode slice has further been avoided, the effect of applying of electrode slice is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of an electric field tumor therapy system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an electrode sheet according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a first analog multiplexing switch according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an adapter according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an electrode sheet according to another embodiment of the present invention.

Reference numerals:

30 30', electrode sheet; 31 31', a multiplexing unit; 311. a first analog multiplexing switch; 3111. a decoder; 3112. a signal input terminal; 312. a second analog multiplexing switch; 313. an inverter; 33. an electrode sheet unit; 331. perforating; 34. a temperature sensor; 341. a ground terminal; 342. a signal terminal; 35. a first cable; 36,36', a substrate; 40. a first connector; 41. a first plug; 42. a first socket; 50. an adapter; 51. a controller; 52. an ADC sampling unit; 53. a voltage dividing resistor; 54. an I/O control unit; 55. a second cable; 56. a serial communication unit; 60. a second connector; 61. a second plug; 62. a second socket; 70. an electric field generator.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The electric field tumor therapy system, the electrode plate thereof and the tumor therapy device according to the embodiments of the present invention will be described with reference to the accompanying drawings.

In some embodiments, and as shown with reference to fig. 1, an electric field tumor treatment system includes: at least one pair of electrode pads 30, an adaptor 50, and an electric field generator 70, wherein the at least one pair of electrode pads 30 are disposed in pairs on the body surface of the patient. For example, in fig. 1, 4 electrode pads 30 are disposed on the body surface of the patient as a pair, an adaptor 50 is electrically connected to each electrode pad 30, and an electric field generator 70 is electrically connected to the adaptor 50. The electric field generator 70 generates an alternating electric signal for tumor electric field therapy, and transmits the alternating electric signal to each electrode sheet 30 through the adaptor 50, so as to form an alternating electric field between the paired electrode sheets to act on the tumor site of the patient for tumor therapy.

Referring to fig. 1 and 2, each electrode sheet 30 includes a backing (not shown), an electrical functional component supported by the backing, and a first cable 35 electrically connected to the electrical functional component. A first connector 40 is connected between each electrode plate 30 and the adaptor 50, and the first connector 40 is adapted to electrically connect the corresponding electrode plate 30 to the adaptor 50. The first connector 40 includes a first plug 41 disposed at an end of the first cable 35 away from the electrical functional component and a first socket 42 disposed on the adaptor 50, wherein the first plug 41 and the first socket 42 are press-type spring connectors, that is, the first connector 40 connects the adaptor 50 and the electrode plate 30 in a connector manner.

As shown in fig. 2, the electrical functional assembly includes a substrate 36, a plurality of electrode sheet units 33 provided on the substrate 36, a plurality of temperature sensors 34, and a multiplexing unit 31. A plurality of electrode sheet units 33 are arranged in an array, and each electrode sheet unit 33 can apply an alternating voltage. Each temperature sensor 34 is provided corresponding to one electrode sheet unit 33. I.e., the number of temperature sensors 34 is equal to the number of electrode sheet units 33, one temperature sensor 34 is provided for each electrode sheet unit 33 when the coverage of the temperature sensors 34 on the electrode sheet 30 is required to reach 100%. As shown in fig. 2, the electrical function module includes 9 electrode sheet units 33 which are disposed on a substrate 36 at intervals and apply an alternating electric field to a patient, 9 temperature sensors 34 which are assembled on the substrate 36, and a multiplexing unit 31 which is disposed on the substrate and time-divisionally outputs analog temperature signals detected by the 9 temperature sensors 34. A multiplexing unit 31 is connected to each temperature sensor 34. In the present embodiment, the tumor electric field treatment system detects the temperature at the corresponding electrode pad unit 33 through the temperature sensor 34, and time-divisionally outputs the analog temperature signal detected by each temperature sensor 34 to the adaptor 50 through the multiplexing unit 31.

Each electrode sheet unit 33 is provided with a through hole 331 therethrough, the through hole 331 being adapted to receive the temperature sensor 34. As shown in fig. 2, the middle portion of each electrode sheet unit 33 has a through hole 331 disposed therethrough, and each temperature sensor 34 is accommodated in the through hole 331 of a corresponding one of the electrode sheet units 33. When the coverage rate of the temperature sensors 34 reaches 100%, the temperature sensors 34 correspond to the electrode sheet units 33 one by one, namely one temperature sensor 34 is accommodated in the through hole 331 in the middle of each electrode sheet unit 33, so that the temperature of each electrode sheet unit 33 is monitored in real time, and low-temperature burn of a patient caused by overhigh temperature of a part region on the body surface of the patient due to the fact that the temperature of some electrode sheet units 33 cannot be monitored is avoided. Alternatively, the electrode sheet unit 33 is a high dielectric element, such as a ceramic sheet.

Each of the temperature sensors 34 has one ground terminal 341 and one signal terminal 342, the ground terminals 341 of the plurality of temperature sensors 34 are commonly connected to the ground pin GND0, and the signal terminal 342 of each of the temperature sensors 34 is connected to one signal input terminal 3112 of the multiplexing unit 31. As shown in fig. 2, the ground terminals 341 of the 9 temperature sensors 34 are commonly connected to the ground pin GND0, and the signal terminals 342 of the 9 temperature sensors 34 are connected in parallel to the 9 signal input terminals 3112,9 of the multiplexing unit 31, and the analog temperature signals detected by the temperature sensors 34 are time-divisionally output to the adapter 50 via the multiplexing unit 31. Optionally, the temperature sensor 34 is a thermistor.

Referring to fig. 2, the multiplexing unit 31 includes a first analog multiplexing switch 311, and the first analog multiplexing switch 311 includes a plurality of signal input terminals 3112, a signal output terminal, an enable control terminal, and a plurality of channel control terminals. In this embodiment, the signal input terminal 3112 of the first analog multiplexing switch 311, that is, the signal input terminal 3112 of the multiplexing unit 31 is connected to one temperature sensor 34 for each signal input terminal 3112. A selection channel is also provided between the signal output terminal of the first analog multiplexing switch 311 and each signal input terminal 3112, respectively. The first analog multiplexing switch 311 controls the selection of channels according to signals received by the enable control terminal and the plurality of channel control terminals. As shown in fig. 3, the first analog multiplexing switch 311 includes 16 signal input terminals 3112, 1 signal output terminal COMMON, 1 enable control terminal INHIBIT, and 4 channel control terminals A, B, C and D, each of the signal input terminals 3112 and the signal output terminals COMMON has a selection channel therebetween, 16 selection channels are provided in total, the enable control terminal INHIBIT is used to control whether 16 selection channels are valid, 4 channel control terminals A, B, C and D are used to select one selection channel to output in a state where 16 selection channels are valid, the signal input terminals 3112 at both ends of the selection channel are communicated with the signal output terminals COMMON, and an analog temperature signal detected by a temperature sensor 34 connected to the signal input terminals 3112 is output to the adapter 50 through the selection channel and the signal output terminals COMMON. The signals of the 4 channel control terminals A, B, C and D are combined into a binary number of 4 bits, and there are 16 different channel control signals, and the 16 different channel control signals time-divisionally control the outputs of the 16 selection channels.

As shown in fig. 3, the first analog multiplexing switch 311 further includes a decoder 3111, and when the enable control terminal INHIBIT receives the channel selection enable signal, the decoder 3111 controls the plurality of selection channels to be turned on sequentially according to the channel control signals received by the channel control terminals A, B, C and D, so as to output the analog temperature signals detected by each temperature sensor 34 to the adaptor 50 in a time-sharing manner. Each selection channel is provided with an analog switch element TG, a control terminal of the analog switch element TG is connected to the decoder 3111, and the analog switch element TG is controlled by the decoder 3111 to turn on or off the corresponding selection channel.

The first analog multiplexing switch 311 further includes a ground terminal GND1 and a power supply terminal VCC1, and the first analog multiplexing switch 311 is supplied with power through the ground terminal GND1 and the power supply terminal VCC 1.

As shown in fig. 2, when the multiplexing unit 31 includes only the first analog multiplexing switch 311, the first connection line 35 includes at least 1 channel control line connected to at least one channel control terminal in a one-to-one correspondence, 1 enable control line connected to 1 enable control terminal in a correspondence, 1 channel output line connected to 1 signal output terminal in a correspondence, 1 direct current power supply line connected to 1 power supply terminal VCC1 in a correspondence, 1 ground line connected to 1 ground terminal GND1 in a correspondence, 1 ground line connected to 1 ground pin GND0 in a correspondence, and 1 alternating signal line AC connected to each electrode pad unit 33. As shown in fig. 3, when the first analog multiplexing switch 311 includes 4 channel control terminals A, B, C and D, the first connection lines 35 may include 4 channel control lines, 1 enable control line, 1 channel output line, 1 direct current power supply line, 2 ground lines, and 1 alternating signal line, for a total of 10 lines, by which 10 lines transmission of the analog temperature signals of up to 16 temperature sensors 34 to the converter 50 can be achieved. The channel output line is also connected to a dc power supply VCC (shown in fig. 4) via a voltage dividing resistor 53, and the voltage dividing resistor 53 and a temperature sensor 34 such as a thermistor element form a voltage dividing circuit for temperature detection.

The controller 51 in the adaptor 50 controls 5I/O ports of an I/O control unit 54 (shown in fig. 4) to output high and low levels, the 5I/O ports of the control unit 54 include 4I/O ports corresponding to 4 channel control lines and 1I/O port corresponding to an enable control line, and output a channel selection enable signal and a channel control signal to the first analog multiplexing switch 311 through the enable control line and the channel control line to drive the first analog multiplexing switch 311 to time-divisionally output the analog temperature signal of the temperature sensor 34, a signal output terminal of the first analog multiplexing switch 311 is connected to the ADC sampling unit 52 in the adaptor 50 through a channel output line to output the analog temperature signal of the temperature sensor 34 to the ADC sampling unit 52 through the channel output line, and the ADC sampling unit 52 converts the analog temperature signal of the temperature sensor 34 into a digital temperature signal to the controller 51.

Referring to fig. 3, the specific workflow is as follows:

when the enable control line is 0 (0 represents low), all select channels are turned off.

When the enable control line is 1 (1 indicates high level), if:

the 4 channel control lines are 0000 (0 indicates a low level, 1 indicates a high level, and the high and low levels of the 4 channel control lines constitute a four-bit binary number), and the decoder 3111 decodes the binary number 0000 to turn on the analog switching element TG on the selected channel 1 and turn off the analog switching elements TG on the other selected channels, thereby making only the selected channel 1 among the 16 selected channels on. At this time, the dc power VCC, the voltage dividing resistor 53, the signal output terminal COMMON of the first analog multiplexing switch 311, the analog switching element TG on the selection channel 1, the temperature sensor 34-1, and the ground pin GND0 form a path, the temperature sensor 34-1 operates to sense the temperature of the corresponding electrode sheet unit 33-1, and the analog temperature signal sensed by the temperature sensor 34-1 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

By analogy, 4 channel control lines are 0001, and the decoder 3111 decodes the binary number 0001 to turn on the analog switching element TG on the selection channel 2 and turn off the analog switching elements TG on the other selection channels, so that only the selection channel 2 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-2 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 0010, and the decoder 3111 decodes the binary number 0010 to turn on the analog switching element TG on the selection channel 3 and turn off the analog switching elements TG on the other selection channels, so that only the selection channel 3 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-3 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 0011, and the decoder 3111 decodes the binary number 0011 to turn on the analog switching element TG on the selected channel 4 and turn off the analog switching elements TG on the other selected channels, so that only the selected channel 4 of the 16 selected channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-4 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 0100, and the decoder 3111 decodes the binary number 0100 to turn on the analog switching element TG on the selection channel 5 and turn off the analog switching elements TG on the other selection channels, thereby turning on only the selection channel 5 of the 16 selection channels. At this time, the analog temperature signal sensed by the temperature sensor 34-5 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 0101, and the decoder 3111 decodes the binary number 0101 to turn on the analog switching element TG on the selection channel 6 and turn off the analog switching elements TG on the other selection channels, thereby turning on only the selection channel 6 of the 16 selection channels. At this time, the analog temperature signal sensed by the temperature sensor 34-6 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 0110, and the decoder 3111 decodes the binary number 0110 to turn on the analog switch element TG on the selection channel 7 and turn off the analog switch elements TG on the other selection channels, so that only the selection channel 7 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-7 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 0111, and the decoder 3111 decodes the binary number 0111 to turn on the analog switch element TG on the selection channel 8 and turn off the analog switch elements TG on the other selection channels, so that only the selection channel 8 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-8 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311, the channel output line.

The 4 channel control lines are 1000, and the decoder 3111 decodes the binary number 1000 to turn on the analog switching element TG on the selection channel 9 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 9 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-9 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311, the channel output line.

The 4 channel control lines are 1001, and the decoder 3111 decodes the binary number 1001 to turn on the analog switch element TG on the selection channel 10 and turn off the analog switch elements TG on the other selection channels, thereby turning on only the selection channel 10 of the 16 selection channels. At this time, the analog temperature signal sensed by the temperature sensor 34-10 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 1010, and the decoder 3111 decodes the binary number 0010 to turn on the analog switching element TG on the selection channel 11 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 11 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-11 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 1011, and the decoder 3111 decodes the binary numbers 1011 to turn on the analog switching elements TG on the selected channel 12 and turn off the analog switching elements TG on the other selected channels, thereby turning on only the selected channel 12 of the 16 selected channels. At this time, the analog temperature signal sensed by the temperature sensor 34-12 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 1100, and the decoder 3111 decodes the binary number 1100 to turn on the analog switch element TG on the selection channel 13 and turn off the analog switch elements TG on the other selection channels, thereby making only the selection channel 13 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-13 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 1101, and the decoder 3111 decodes the binary number 1101 to turn on the analog switching elements TG on the selection channel 14 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 14 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-14 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 1110, and the decoder 3111 decodes the binary number 1110 to turn on the analog switching element TG on the selection channel 15 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 15 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-15 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The 4 channel control lines are 1111 and the decoder 3111 decodes the binary number 1111 to turn on the analog switching element TG on the select channel 16 and turn off the analog switching elements TG on the other select channels, thereby turning on only the select channel 16 of the 16 select channels. At this time, the analog temperature signals sensed by the temperature sensors 34 to 16 are transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311, the channel output line.

It should be noted that the number of the signal input terminals 3112 of the first analog multiplexing switch 311 is equal to or greater than the number of the temperature sensors 34, and as shown in fig. 2 and 3, the number of the signal input terminals 3112 of the first analog multiplexing switch 311 is 16, the electrode pad 30 has 9 temperature sensors 34, and the number of the signal input terminals 3112 of the first analog multiplexing switch 311 is equal to or greater than the number of the temperature sensors 34, so that it can be ensured that all the analog temperature signals detected by the temperature sensors 34 can be output in a time-sharing manner, but in this example, since the number of the temperature sensors 34 is only 9, the controller 51 located in the adaptor 50 controls the I/O control unit 54 to cyclically switch on only the selection channels 1 to 9, and does not need to control the selection channels 10 to 16 to be switched on.

In this embodiment, the time-sharing output of the analog temperature signals of up to 16 temperature sensors can be realized by the first cable 35 with 10 cable cores, so that the coverage rate of the temperature sensors 34 can be increased without increasing the number of cable cores of the first cable 35 between the electrode plate 30 and the adapter 50, and since only one analog multiplexing switch 311 is additionally arranged on the electrode plate 30, compared with the weight of the cable cores added by the first cable 35 of the conventional electrode plate, the weight of the electrode plate 30 can be effectively reduced, so that the electrode plate 30 can maintain a good application effect; meanwhile, the electrode plate 30 outputs an analog temperature signal, so that an ADC (analog-to-digital converter) sampling unit and the like are prevented from being arranged on the electrode plate 30, the increase of the whole weight of the electrode plate 30 is further avoided, and the pasting effect of the electrode plate 30 is improved. Preferably, the analog multiplexing switch 311 is an analog multiplexing switch 311 packaged in a small size, so as to reduce the weight of the analog multiplexing switch 311.

It should be noted that, as shown in fig. 2, in another embodiment, the ground terminals of the plurality of temperature sensors 34 are commonly connected to the ground pin GND0, and may be cascaded with the ground line GND1 connected to the ground terminal of the multiplexing unit 31 on one ground line, that is, the ground pin GND0 is connected to the ground terminal of the first multiplexing switch 311, so that 1 ground line connected to the ground terminal of the multiplexing unit 31 and the first cable 35 may be omitted, the number of cores of the first cable 35 may be further reduced, and the first cable 35 is made more flexible, so that the weight of the electrode sheet 30 may be further reduced, and the application effect of the electrode sheet 30 may be improved. Similarly, the ground terminals 341 of the plurality of temperature sensors 34 may be commonly connected to the ground line GND1 to which the ground terminal of the multiplexing unit 31 is connected, thereby omitting 1 ground line of the first cable 35.

Referring to fig. 4, the adaptor 50 includes a main control board electrically connected to at least one pair of the first connectors 40. The main control board includes a controller 51, an ADC sampling unit 52 connected between the controller 51 and the first connectors 40, a serial communication unit 56 connected to the controller 51, and an I/O control unit 54 connected to a corresponding one of the first connectors 40 and controlled by the controller 51. As shown in fig. 4, when the number of the electrode pads 30 is 4, the number of the sampling terminals of the first connector 40, the I/O control unit 54, and the ADC sampling unit 52 is 4, and the 4I/O control units 54 are in one-to-one correspondence with the 4 first connectors X1, Y1, X2, and Y2, and the 4 first connectors X1, Y1, X2, and Y2 are in one-to-one correspondence with the 4 electrode pads 30, wherein the output terminal of each I/O control unit 54 is connected to the enable terminal and the channel control terminal of the multiplexing unit 31 through the corresponding first connector 40, for example, the enable control terminal and the channel control terminal of the first multiplexing switch 31, and each sampling terminal is connected to the output terminal of the multiplexing unit 31 through the corresponding first connector 40, for example, the signal output terminal of the first multiplexing switch 31.

The controller 51 outputs a channel control signal to the multiplexing unit 31 in the corresponding electrode pad 30 through each I/O control unit 54, so that the multiplexing unit 31 in the corresponding electrode pad 30 outputs the analog temperature signal detected by the temperature sensor 34 connected thereto in a time-division manner, performs AD sampling on the analog temperature signal through the ADC sampling unit 52 to obtain a temperature sampling signal, and transmits the temperature sampling signal to the electric field generator 70 through the serial communication unit 56. As shown in fig. 2 to 4, the controller 51 controls the 4I/O control units 54 to respectively drive the first analog multiplexing switch 311 and the adc sampling unit 52 in the 4 electrode pads 30 to time-divisionally acquire the analog temperature signal detected by the temperature sensor 34 of a corresponding one of the 4 electrode pads 30, convert the analog temperature signal into a digital temperature signal and transmit the digital temperature signal to the controller 51, and the controller 51 converts the digital temperature signal into a temperature value and transmits the temperature value to the electric field generator 70 electrically connected to the adaptor 50 through the serial port communication unit 56. Each sampling end of the ADC sampling unit 52 is connected to the corresponding first connector 40 by a voltage dividing resistor 53, which is a high precision resistor and divides the voltage of the temperature sensor 34, so as to convert the analog temperature signal into a digital temperature signal through the ADC sampling unit 52.

As shown in fig. 2 to 4, the temperature acquisition module of a single electrode sheet 30 is composed of 9 temperature sensors 34 arranged thereon, and a first cable 35, a first connector 40 and 1 voltage-dividing resistor 53, wherein the positive terminal of the voltage-dividing resistor 53 is connected to a dc power supply VCC, the other terminal is connected to a signal terminal 342 of the temperature sensor 34 and an ADC sampling unit 52, and a ground terminal 341 of the temperature sensor 34 is connected to a ground pin GND0.

Since the dc power VCC is a fixed voltage and the resistance of the voltage dividing resistor 53 is not affected by the temperature change, the linear change of the voltage value at the sampling end of the ADC sampling unit 52 is only related to the resistance of the thermistor element, and is equivalent to two resistors, namely the thermistor element and the voltage dividing resistor 53, connected in series for voltage division, and the relationship between the resistor and the voltage is VRT = VCC x (RT/(RT + RS)), where VRT is the voltage at the sampling end of the ADC sampling unit 52, RT is the resistance of the thermistor element at the temperature T (K), and RS is the resistance of the voltage dividing resistor 53. When the resistance value of the thermistor element changes, the acquired voltage value changes along with the resistance value, the voltage value is an analog quantity, and the current temperature value can be obtained through calculation of the controller 51 after the voltage value is converted into a digital temperature signal through the ADC sampling unit 52.

The temperature and resistance value has the relation of RT = RN × e ^B(1/T-1/TN) Where RT is the resistance of the thermistor element at the temperature T (K), RN is the resistance of the thermistor element at the rated temperature TN (K), T is the current temperature value (K), B is the thermal coefficient of the thermistor element, and e is a constant (2.71828). For example, when the dc power supply VCC is 3.3V, the thermistor coefficient B of the thermistor element is 3380, and the resistance RN at 25 ℃ is 10K, when the collected voltage VRT is 1.5022V, the resistance RT of the thermistor element calculated is about 8355.88 Ω, and the current temperature value T is 29.8 ℃. The system adopts a 12-bit analog-to-digital conversion chip, the minimum measurable voltage is about 0.8056mV under the power supply voltage of 3.3V, the corresponding temperature minimum resolution is about 0.03 ℃, and the accuracy of the measurable temperature value is high.

By analogy, the 9 thermistor elements of each electrode sheet 30 transmit the analog temperature signals sensed by the thermistor elements to the corresponding sampling channels of the ADC sampling unit 52 in parallel in a time-sharing manner through the first analog multiplexing switch 311 located thereon, and then the controller 51 controls the serial communication unit 56 to transmit the analog temperature signals to the electric field generator 70 electrically connected to the adaptor 50 in a serial manner.

Referring to fig. 1, the adaptor 50 further includes a second cable 55 electrically connected to the electric field generator 70. When the electrode pads 30 include 4, as shown in fig. 4, the second cable 55 includes 8 conductive cores, where 4 conductive cores are the alternating signal lines X1_ AC, Y1_ AC, X2_ AC and Y2_ AC respectively connected to the 4 first connectors X1, Y1, X2 and Y2, 2 conductive cores are the receiving data line RX and the transmitting data line TX electrically connected to the serial communication unit 56 of the controller 51, and the remaining 2 conductive cores are the power supply line VCC and the ground line GND that provide the operating power supply to the at least one temperature sensor 34 of each electrode pad 30 and the main control board of the adaptor 50.

Referring to fig. 1, a second connector 60 is provided between the adaptor 50 and the electric field generator 70, the second connector 60 being adapted to electrically connect the electric field generator 70 to the adaptor 50. The second connector 60 comprises a second plug 61 provided at an end of the second cable 55 remote 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, i.e. the second connector 60 connects the adaptor 50 and the electric field generator 70 by means of connectors. Referring to fig. 4, each of the first connectors, such as X1, Y1, X2 and Y2, is connected to the second connector 60 through an alternating signal line, such as X1_ AC, Y1_ AC, X2_ AC and Y2_ AC, the second connector 60 is connected to the serial communication unit 56 through a reception data line RX and a transmission data line TX, the VCC pin of the second connector 60 is connected to the power supply terminal of the controller 51, the GND pin of the second connector 60 is connected to ground, and the VCC pins of the second connector 60 are each connected to the corresponding sampling terminal of the ADC sampling unit 52 through a voltage dividing resistor 53.

The controller 51 controls the serial communication unit 56 to transmit the digital temperature signal converted by the ADC sampling unit 52 to the electric field generator 70 via the second connector 60. That is, the analog temperature signal (corresponding to the voltage value of the temperature sensor 34) collected by the adapter 50 is converted into a digital temperature signal by the ADC sampling unit 52, and then transmitted to the electric field generator 70 via the serial communication unit 56, the transmission data line TX connected to the serial communication unit 56, and the second connector 60.

In the above embodiment, by disposing the multiplexing unit 31 on the substrate 36 of the electrode sheet 30 and connecting the multiplexing unit to the plurality of temperature sensors 34 disposed on the substrate 36 to time-divisionally output the analog temperature signal detected by each temperature sensor 34, it is possible to achieve a greater coverage of the temperature sensors 34 without increasing the number of cores of the first cable 35; in addition, under the condition that the number of the temperature sensors 34 on the electrode plate 30 is large, the weight of the first cable 35 is greatly reduced, and the weight of the multiplexing unit 31 is only increased by the electrode plate 30, so that the phenomenon that the load of the electrode plate 30 is too large can be avoided, and the application effect of the electrode plate 30 is kept; meanwhile, the electrode plate 30 outputs an analog temperature signal, and the ADC sampling unit 52 and the like are not arranged on the electrode plate 30, so that the increase of the whole weight of the electrode plate 30 is further avoided, and the application effect of the electrode plate 30 is improved.

Fig. 5 is a schematic structural view of an electrode sheet 30' according to another embodiment of the present invention. The substrate 36' of the electrode sheet 30' in the present embodiment has more electrode sheet units 33 and temperature sensors 34 than the aforementioned electrode sheet 30, and further has a first analog multiplex switch 311 connected to signal terminals (not numbered) of the plurality of temperature sensors 34, and the electrode sheet units 33, the temperature sensors 34, and the first analog multiplex switch 311 of the electrode sheet 30' in the present embodiment are the same as the electrode sheet units 33, the temperature sensors 34, and the first analog multiplex switch 311 of the electrode sheet 30 of the aforementioned embodiment, and therefore the previous reference numerals are used. Compared to the electrode pad 30 of the foregoing embodiment, the multiplexing unit 31 'of the electrode pad 30' of the present embodiment further includes a second analog multiplexing switch 312 and an inverter 313, an enable control terminal of the second analog multiplexing switch 312 is connected to an output terminal of the inverter 313, an input terminal of the inverter 313 is connected to an enable control terminal of the first analog multiplexing switch 311, each channel control terminal of the second analog multiplexing switch 312 is correspondingly connected to each channel control terminal of the first analog multiplexing switch 311, and a signal output terminal of the second analog multiplexing switch 312 is connected to a signal output terminal of the first analog multiplexing switch 311. That is, the first analog multiplexing switch 311 and the second analog multiplexing switch 312 share the enable control line, the channel control line, and the channel output line, but when sharing the enable control line, the inverter 313 is added in the middle, so that only one analog multiplexing switch is active at the same time regardless of whether the level of the enable control line is high or low, and further, the first analog multiplexing switch 311 and the second analog multiplexing switch 312 share the dc power supply line, the ground line, and the alternating signal line, so that the transmission of the analog temperature signals to more temperature sensors 34 can be realized without adding any core.

As shown in fig. 5, 20 electrode sheet units 33 are disposed on the substrate 36 'of the electrode sheet 30', and each electrode sheet unit 33 is correspondingly disposed with one temperature sensor 34, if the number of the signal input terminals 3112 of the first analog multiplexing switch 311 is 16, it is obvious that the number of the temperature sensors 34 exceeds the number of the signal input terminals 3112 of the first analog multiplexing switch 311, and at this time, the second analog multiplexing switch 312 needs to be added to increase the number of the signal input terminals 3112, that is, to increase the number of the selection channels, so as to realize the transmission of the analog temperature signals of 20 temperature sensors 34. Alternatively, the structures of the first analog multiplexing switch 311 and the second analog multiplexing switch 312 may be both the structures shown in fig. 3, that is, each has 4 channel control terminals A, B, C and D and 16 signal input terminals 3112, so as to realize the transmission of analog temperature signals of more than 16 temperature sensors 34 through two analog multiplexing switches.

As shown in fig. 5, when the enable control line is 1 (1 indicates high level), the enable control terminal INHIBIT of the first analog multiplexing switch 311 is active if:

the channel control line is 0000, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0000 to turn on the analog switching element TG on the selection channel 1 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 1 among the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-1 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 0001, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0001 to turn on the analog switching element TG on the selection channel 2 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 2 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-2 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 0010, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0010 to turn on the analog switching element TG on the selected channel 3 and turn off the analog switching elements TG on the other selected channels, thereby making only the selected channel 3 among the 16 selected channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-3 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 0011, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0011 to turn on the analog switching element TG on the selection channel 4 and turn off the analog switching elements TG on the other selection channels, so that only the selection channel 4 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-4 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 0100, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0100 to turn on the analog switching element TG on the selection channel 5 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 5 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-5 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 0101, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0101 to turn on the analog switching element TG on the selection channel 6 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 6 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-6 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 0110, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0110 to turn on the analog switch element TG on the selection channel 7 and turn off the analog switch elements TG on the other selection channels, so that only the selection channel 7 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-7 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 0111, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0111 to turn on the analog switch element TG on the selection channel 8 and turn off the analog switch elements TG on the other selection channels, so that only the selection channel 8 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-8 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1000, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 1000 to turn on the analog switch element TG on the selection channel 9 and turn off the analog switch elements TG on the other selection channels, thereby making only the selection channel 9 among the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-9 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1001, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 1001 to turn on the analog switch element TG on the selection channel 10 and turn off the analog switch elements TG on the other selection channels, so that only the selection channel 10 of the 16 selection channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-10 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1010, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 0010 to turn on the analog switching element TG on the selection channel 11 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 11 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-11 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1011, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 1011 to turn on the analog switch element TG on the selected channel 12 and turn off the analog switch elements TG on the other selected channels, thereby turning on only the selected channel 12 of the 16 selected channels. At this time, the analog temperature signal sensed by the temperature sensor 34-12 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1100, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 1100 to turn on the analog switch element TG on the selection channel 13 and turn off the analog switch elements TG on the other selection channels, thereby making only the selection channel 13 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-13 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1101, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 1101 to turn on the analog switch element TG on the selection channel 14 and turn off the analog switch elements TG on the other selection channels, thereby making only the selection channel 14 of the 16 selection channels on. At this time, the analog temperature signal sensed by the temperature sensor 34-14 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1110, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 1110 to turn on the analog switching element TG on the selection channel 15 and turn off the analog switching elements TG on the other selection channels, thereby making only the selection channel 15 of the 16 selection channels on. At this time, the analog temperature signals sensed by the temperature sensors 34 to 15 are transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

The channel control line is 1111, and the decoder 3111 of the first analog multiplexing switch 311 decodes the binary number 1111 to turn on the analog switch element TG on the selection channel 16 and turn off the analog switch elements TG on the other selection channels, thereby making only the selection channel 16 of the 16 selection channels on. At this time, the analog temperature signals sensed by the temperature sensors 34 to 16 are transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal COMMON of the first analog multiplexing switch 311 and the channel output line.

When the enable control line is 0 (0 indicates low), the enable control terminal of the second analog multiplexing switch 312 is enabled after inversion by the inverter 313 if:

the channel control line is 0000 and the decoder of the second analog multiplex switch 312 decodes the binary number 0000 to turn on the analog switch element TG on the selected channel 1 and turn off the analog switch elements TG on the other selected channels, so that only the selected channel 1 of the 16 selected channels is turned on. At this time, the analog temperature signals sensed by the temperature sensors 34-17 are transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal of the second analog multiplexing switch 312 and the channel output line.

The channel control line is 0001, and the decoder of the second analog multiplexing switch 312 decodes the binary number 0001 to turn on the analog switching element TG on the selection channel 2 and turn off the analog switching elements TG on the other selection channels, so that only the selection channel 2 of the 16 selection channels is turned on. At this time, the analog temperature signals sensed by the temperature sensors 34-18 are transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal of the second analog multiplexing switch 312 and the channel control output.

The channel control line is 0010 and the decoder of the second analog multiplexer switch 312 decodes the binary number 0010 to turn on the analog switching element TG on the selected channel 3 and to turn off the analog switching elements TG on the other selected channels, so that only the selected channel 3 of the 16 selected channels is turned on. At this time, the analog temperature signals sensed by the temperature sensors 34 to 19 are transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal of the second analog multiplexing switch 312 and the channel output line.

The channel control line is 0011, and the decoder of the second analog multiplexer switch 312 decodes the binary number 0011 to turn on the analog switching element TG on the selected channel 4 and turn off the analog switching elements TG on the other selected channels, so that only the selected channel 4 of the 16 selected channels is turned on. At this time, the analog temperature signal sensed by the temperature sensor 34-20 is transmitted to the ADC sampling unit 52 of the converter 50 through the signal output terminal of the second analog multiplexing switch 312 and the channel output line.

It should be noted that, when the electric field tumor therapy system includes the electrode plate 30' shown in fig. 5, the corresponding adapters 50, electric field generators 70, and the like are the same as the corresponding adapters 50, electric field generators 70, and the like when the electrode plate 30 shown in fig. 2 is used, and the difference is that the number of the selection channels that the controller 51 located in the adapters 50 controls the I/O control unit 54 to switch cyclically is different, as shown in fig. 2, the I/O control unit 54 only switches on the selection channels 1 to 9 cyclically, and does not need to control the selection channels 10 to 16 to switch on, as shown in fig. 5, the I/O control unit 54 needs to switch on the selection channels 1 to 20 cyclically.

In the above embodiment, by providing the multiplexing unit 31 'on the substrate 36' of the electrode sheet 30 'and connecting to the plurality of temperature sensors 34' provided on the substrate 36 'to time-divisionally output the analog temperature signals detected by each of the temperature sensors 34', it is possible to achieve a greater coverage of the temperature sensors 34 without increasing the number of cores of the first cable 35.

The utility model provides a tumor treatment equipment, include: the aforementioned electrode pads 30, 30', or the aforementioned tumor electric field treatment system.

According to the utility model discloses tumour treatment equipment, through aforementioned electrode slice 30, 30 'or tumour electric field treatment system, can be under the condition that does not increase first cable 35 sinle silk quantity, reach bigger temperature sensor 34 coverage, and because at electrode slice 30, 30' go up only to increase and set up multiplexing unit 31, compare in the weight of the sinle silk of the first cable 35 increase of traditional electrode slice, can effectively reduce electrode slice 30, 30's weight, electrode slice 30 has been avoided, 30's heavy burden is too big, the effect of applying of electrode slice has been kept.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may 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 an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", and the like, used in the embodiments of the present invention, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying that the technical feature quantity indicated in the embodiments is indicated. Therefore, the features of the embodiments of the present invention defined by the terms "first", "second", and the like, may explicitly or implicitly indicate that at least one of the features is included in the embodiments. In the description of the present invention, the word "plurality" means at least two or two and more, such as two, three, four, etc., unless specifically limited otherwise in the examples.

In the present invention, unless otherwise explicitly specified or limited by the embodiments, the terms "mounted," "connected," and "fixed" appearing in the embodiments are to be understood in a broad sense, for example, the connection may be a fixed connection, a detachable connection, or an integrated connection, and it may be understood that the connection may also be a mechanical connection, an electrical connection, or the like; of course, they may be directly connected or indirectly connected through intervening media, or they may be interconnected within one another or in an interactive relationship. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific implementation.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (25)

1. An electrode sheet for an electric field tumor treatment system, comprising:

a substrate;

the temperature sensor comprises a plurality of electrode sheet units, a plurality of temperature sensors and a multiplexing unit, wherein the electrode sheet units are arranged on the substrate, alternating voltage can be applied to each electrode sheet unit, each temperature sensor is arranged corresponding to one electrode sheet unit, the multiplexing unit is connected with each temperature sensor, and the multiplexing unit is configured to output analog temperature signals detected by each temperature sensor in a time-sharing mode.

2. The electrode pad of claim 1, wherein each of the temperature sensors includes a ground terminal and a signal terminal, the multiplexing unit has a plurality of signal input terminals, the ground terminals of the plurality of temperature sensors are commonly connected to a ground pin, and the signal terminal of each of the temperature sensors is connected to one of the signal input terminals of the multiplexing unit.

3. The electrode pad of claim 2, wherein the multiplexing unit has a ground terminal connected to a ground pin.

4. The electrode pad according to claim 2, characterized in that the number of signal input terminals of the multiplexing unit is equal to or greater than the number of the temperature sensors.

5. The electrode pad of claim 2, wherein the multiplexing unit comprises a first analog multiplexing switch, the first analog multiplexing switch comprises a signal output terminal, an enable control terminal and at least one channel control terminal, a selection channel is respectively arranged between the signal output terminal and each signal input terminal of the multiplexing unit, and the first analog multiplexing switch is configured to control the selection channel according to signals received by the enable control terminal and the at least one channel control terminal.

6. The electrode pad of claim 5, wherein the first analog multiplexing switch further comprises a decoder configured to: when the enabling control terminal receives a channel selection enabling signal, the selecting channels are controlled to be respectively and sequentially conducted according to the channel control signal received by the channel control terminal, and the analog temperature signals detected by the temperature sensors are output in a time-sharing mode.

7. The electrode sheet according to claim 6, wherein each selection channel is provided with an analog switch element, a control end of the analog switch element is connected with the decoder, and the analog switch element is controlled by the decoder to turn on or off the corresponding selection channel.

8. The electrode pad of claim 5, wherein the multiplexing unit further comprises a second analog multiplexing switch and an inverter, the inverter having an input terminal and an output terminal, the input terminal of the inverter being connected to the enable control terminal of the first analog multiplexing switch, the second analog multiplexing switch having an enable control terminal connected to the output terminal of the inverter, a plurality of channel control terminals correspondingly connected to each of the channel control terminals of the first analog multiplexing switch, and a signal output terminal connected to the signal output terminal of the first analog multiplexing switch.

9. The electrode tile of claim 8, wherein the channel control terminals of the first and second analog multiplexing switches are each 4.

10. The electrode pad of claim 9, wherein the signal input terminals of the first and second analog multiplexing switches are each 16.

11. The electrode sheet according to claim 9, wherein 1 channel control line is provided for each of the channel control terminals, 1 enable control line is provided for each of the enable control terminals of the first analog multiplexer switch, 1 channel output line is shared by the signal output terminal of the second analog multiplexer switch and the signal output terminal of the first analog multiplexer switch, 1 ground line is provided for each of the ground terminals of the multiplexer unit, 1 dc power supply line is provided for each of the power supply terminals of the multiplexer unit, 1 ground line is provided for each of the ground pins, and 1 alternating signal line is provided for each of the plurality of electrode sheet units.

12. The electrode sheet of claim 11, wherein the temperature sensor is a thermistor.

13. The electrode pad of claim 12, wherein the channel output line is connected to a direct current power supply through a voltage-dividing resistor.

14. The electrode sheet according to any one of claims 1 to 13, wherein the electrode sheet unit is a dielectric element.

15. The electrode sheet of claim 14, wherein the dielectric element is a ceramic sheet.

16. The electrode sheet according to any one of claims 1 to 13, wherein each of the electrode sheet units is provided with a through hole, and the temperature sensor is disposed in the through hole.

17. The electrode sheet of any one of claims 1-13, wherein the plurality of electrode sheet units are arranged in an array.

18. An electric field tumor treatment system, comprising:

at least one pair of electrode sheets according to any one of claims 1-17;

the electric field generator is used for generating an alternating electric signal and transmitting the alternating electric signal to each electrode plate through the adaptor, and the adaptor is used for carrying out AD sampling on the analog temperature signal so as to obtain a temperature sampling signal and transmitting the temperature sampling signal to the electric field generator.

19. The electric field tumor treatment system of claim 18, further comprising:

at least one pair of first connectors, each said first connector adapted to connect a respective electrode pad to said adaptor;

a second connector adapted to connect the electric field generator to the adaptor.

20. The system of claim 19, wherein the first connector is configured to connect the adapter to the electrode pad in the form of a socket connector, and the second connector is configured to connect the adapter to the electric field generator in the form of a socket connector.

21. The electric field tumor therapy system according to claim 19, wherein the adaptor comprises a controller, a serial communication unit, an ADC sampling unit, and at least two I/O control units, the controller is connected to the serial communication unit, the ADC sampling unit, and each of the I/O control units, respectively, and the controller outputs a channel control signal to the multiplexing unit in the corresponding electrode pad through each of the I/O control units, and causes the multiplexing unit in the corresponding electrode pad to time-divisionally output the analog temperature signal detected by the temperature sensor connected correspondingly, and performs AD sampling on the analog temperature signal through the ADC sampling unit, and transmits the temperature sampling signal to the electric field generator through the serial communication unit.

22. The system of claim 21, wherein each of the first connectors is connected to the second connector through an alternating signal line, the second connector is connected to the serial communication unit through a receiving data line and a transmitting data line, the VCC pin of the second connector is connected to the power supply terminal of the controller, the GND pin of the second connector is grounded, each of the sampling terminals of the ADC sampling units is connected to the output terminal of the multiplexing unit through the corresponding first connector, and the output terminal of each of the I/O control units is connected to the enable terminal and the channel control terminal of the multiplexing unit through the first connector.

23. The electric field tumor therapy system according to claim 22, wherein the VCC pin of the second connector is further connected to the corresponding sampling terminal of the ADC sampling unit through a corresponding voltage dividing resistor.

24. The electric field tumor therapy system according to any one of claims 18-23, wherein the number of electrode pads is 4.

25. A tumor treatment apparatus, comprising: at least one pair of electrode patches according to any one of claims 1-17 or a tumor electric field treatment system according to any one of claims 18-24.

Images