CN116077833A - Non-contact electromagnetic field excitation device and method, wearable equipment and physiotherapy platform - Google Patents
Non-contact electromagnetic field excitation device and method, wearable equipment and physiotherapy platform Download PDFInfo
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- A61N2/00—Magnetotherapy
- A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
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Abstract
The application relates to a non-contact electromagnetic field excitation device, a non-contact electromagnetic field excitation method, wearable equipment and a physiotherapy platform. The device comprises: the signal control circuit is electrically connected with the coil through the driving tuning circuit, and the driving tuning circuit is provided with a plurality of tuning links for adjusting resonance points of different frequencies of the coil; the signal control circuit is used for controlling and generating adjustable signals corresponding to signal frequencies and signal types according to external control instructions, generating corresponding first control signals according to the adjustable signals, driving the tuning circuit to automatically configure tuning links corresponding to the adjustable signals according to the first control signals, and driving coils to generate corresponding alternating electromagnetic fields through the tuning links according to the adjustable signals. The adoption of the method can realize multiple resonance points, adjustable resonance points, wider frequency band, wider application range and higher energy efficiency, and meanwhile, the method is not in contact with a target object, is comfortable to attach, and realizes the physiotherapy requirements of various required modes.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a non-contact electromagnetic field excitation device, a non-contact electromagnetic field excitation method, wearable equipment and a physiotherapy platform.
Background
Along with the development of medical instrument technology, wearable equipment technology and other technologies aiming at tumors (especially malignant tumors or cancers) appear, and the technology achieves the effect of inhibiting division and diffusion by externally stimulating tumor cells, so that the current electric field physiotherapy products are led out.
The traditional electric field physiotherapy product has the defects that the electrode is in contact with skin for a long time, the electrode is easy to generate heat, the electrode and the skin are easy to allergic, infect, collapse and the like, the wearing comfort and the usability of the electrode are poor, the magnetic ring or the magnetic chain is closed in a metal coil, the magnetic ring or the magnetic chain is loaded with preset alternating current to generate a preset alternating magnetic field in the metal coil, and the preset alternating electric field is further formed in the direction perpendicular to the magnetic ring.
Disclosure of Invention
Based on the above, it is necessary to provide a non-contact electromagnetic field excitation device, a method, a wearable device and a physiotherapy platform with multiple resonance points, adjustable resonance points, wider frequency band, wider application range, higher energy efficiency, comfortable fit, simplicity and easiness in use.
In a first aspect, the present application provides a non-contact electromagnetic field excitation device, comprising: the signal control circuit is electrically connected with the coil through the driving tuning circuit, and the driving tuning circuit is provided with a plurality of tuning links for adjusting resonance points of different frequencies of the coil;
the signal control circuit is used for controlling and generating an adjustable signal corresponding to the frequency and the type of the signal according to an external control instruction, generating a corresponding first control signal according to the adjustable signal, driving the tuning circuit to automatically configure a tuning link corresponding to the adjustable signal according to the first control signal, and driving the coil to generate a corresponding alternating electromagnetic field through the tuning link according to the adjustable signal, wherein the alternating electromagnetic field is excited to act on a target object, and the interval between the coil and the target object is set.
In one embodiment, the driving tuning circuit comprises a driving module and a tuning module, the driving module is electrically connected with the coil through the tuning module, the driving module is used for converting the adjustable signal into a driving signal, the tuning module is used for automatically configuring a tuning link for outputting the driving signal according to the first control signal, and the driving signal of the tuning link drives the coil to generate a corresponding alternating electromagnetic field.
In one embodiment, the tuning module at least comprises a multiplexing switch and tunable units in each tuning link, the driving module is electrically connected with one end of each tunable unit through the multiplexing switch, the other end of each tunable unit is electrically connected with different taps of the coil, and the turns of the coil corresponding to the different taps are different;
the multiplexing switch is used for selecting a tuning link, and the tunable unit is used for adjusting a frequency resonance point corresponding to the coil.
In one embodiment, the driving tuning circuit further includes an acquisition module, configured to acquire a driving current and a driving voltage output by the driving signal, the signal control circuit is further configured to generate a second control signal according to a phase difference between the driving current and the driving voltage, and the tuning module is further configured to adjust the tunable unit according to the second control signal, so as to adjust the emission efficiency of the coil.
In one embodiment, the signal control circuit is further configured to perform circuit monitoring and protection based on the drive current and the drive voltage.
In one embodiment, the signal control circuit comprises a micro control unit, a digital signal synthesis module, an attenuator module and an amplifying and filtering module, wherein the micro control unit is respectively and electrically connected with the digital signal synthesis module and the attenuator module, the digital signal synthesis module is electrically connected with the attenuator module, and the attenuator module is electrically connected with the driving tuning circuit through the amplifying and filtering module;
the micro control unit is used for controlling the signal frequency and the signal type of the signals generated by the digital signal synthesis module according to the external control instruction and controlling the attenuation multiple of the attenuator module, and the amplifying and filtering module is used for amplifying and filtering the signals generated by the digital signal synthesis module and output by the attenuator module to obtain adjustable signals.
In one embodiment, the signal control circuit further comprises a communication module electrically connected with the micro control unit, and the communication module is used for communicating with an external upper computer to obtain the control instruction.
In a second aspect, the present application provides a non-contact electromagnetic field excitation method, including the steps of:
acquiring a control instruction;
generating an adjustable signal corresponding to the signal frequency and the signal type according to the control instruction, and generating a corresponding first control signal according to the adjustable signal;
and automatically configuring a tuning link corresponding to the adjustable signal according to the first control signal, and driving a coil to generate a corresponding alternating electromagnetic field through the tuning link according to the adjustable signal.
In a third aspect, the present application provides a wearable device, including a wearable body, and a non-contact electromagnetic field excitation device according to any one of the embodiments described above, where the coil is disposed on a side of the wearable body close to the target object, and the coil is disposed at an interval between the coil and the target object, where the wearable body is a head-wearing body or a waistband-type body or a backpack-type body or a clothing-type body.
In one embodiment, the wearable device further comprises a temperature sensor electrically connected with the signal control circuit, wherein the temperature sensor is arranged at a position corresponding to the coil in the wearable body and is used for detecting the working temperature of the coil, and the signal control circuit is further used for adjusting the adjustable signal or closing the output of the adjustable signal according to the working temperature.
In one embodiment, the non-contact electromagnetic field excitation device is provided with a plurality of coils, which are tiled and/or laminated between each other, wherein the coils are rectangular or circular.
In one embodiment, the coil is electrically connected with the driving tuning circuit through a plug interface, and the coil is fixed on the wearable body through an insulating braided wire or a magic tape or a pocket.
In a fourth aspect, the present application provides a physiotherapy platform, including a fixed platform, and a non-contact electromagnetic field excitation device according to any one of the above embodiments, where the coil is disposed on a side of the fixed platform, which is close to the target object, and the coil is disposed at an interval between the coil and the target object.
According to the non-contact electromagnetic field excitation device, the method, the wearable equipment and the physiotherapy platform, on one hand, a plurality of resonance points can be formed on the same coil through driving output of a plurality of different tuning links, so that a widened frequency band is covered, the application range is wider, the emission efficiency of the coil can be ensured to be always kept above required efficiency under the driving output conditions of frequency sweeping, frequency conversion and the like, so that the excitation effect is ensured, the energy efficiency is further improved, corresponding resonance frequency can be independently regulated through each tuning link, the range of the frequency band can be accurately regulated through regulation of each resonance point, the application range is further improved, on the other hand, the coil can be well attached to a target object, a certain interval is kept between the coil and the target object, the coil is free of infection and breaking risk, the coil is comfortable and easy to use, the shape of the physiotherapy part of the coil and the target object is attached, the optimal physiotherapy effect can be achieved, meanwhile, the electromagnetic field generated by the coil can be conveniently controlled through a control driving circuit electrically connected with the coil, and the requirements of various required modes are met, and the physiotherapy is easy to operate and good.
Drawings
In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a block diagram of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 2 is a schematic diagram of an electromagnetic field of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 3 is a diagram of a micro control unit and a power supply circuit of a non-contact electromagnetic field excitation device according to an embodiment;
FIG. 4 is a circuit diagram of a digital signal synthesis module of a non-contact electromagnetic field excitation device according to one embodiment;
FIG. 5 is a circuit diagram of an attenuator module of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 6 is a circuit diagram of an amplification and filtering module of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 7 is a circuit diagram of a drive module of a non-contact electromagnetic field excitation device according to one embodiment;
FIG. 8 is a circuit diagram of a tuning module of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 9 is a circuit diagram of an acquisition module of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 10 is a circuit diagram of a coil of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 11 is a diagram showing multiple resonance points of a non-contact electromagnetic field excitation device in one embodiment;
FIG. 12 is a graph of test results of a non-contact electromagnetic field excitation device according to one embodiment;
FIG. 13 is a general flow diagram of a method of non-contact electromagnetic field excitation in one embodiment;
FIG. 14 is a block diagram of a wearable device in one embodiment;
fig. 15-19 are block diagrams of wearable bodies in some embodiments;
FIG. 20 is a block diagram of tiling of multiple coils in a wearable device in one embodiment;
fig. 21 is a block diagram of a lamination of multiple coils in a wearable device in one embodiment.
Reference numerals illustrate:
1. a target object; 2. tumor cells;
10. a coil; 20. a signal control circuit; 21. a micro control unit; 22. a digital signal synthesis module; 23. an attenuator module; 24. an amplifying and filtering module; 30. driving a tuning circuit; 31. a driving module; 32. a tuning module; 321. a multiplexing switch; 322. a tunable unit; 33. an acquisition module; 40. a wearable body; 50. a temperature sensor.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various names of the same concepts, but these names are not limited by these terms. These terms are only used to distinguish a first name from another name.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and 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 invention. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
In one embodiment, as shown in fig. 1, there is provided a non-contact electromagnetic field excitation device, comprising: the coil 10 is electrically connected with the signal control circuit 20 through the driving tuning circuit 30, and the driving tuning circuit 30 is provided with a plurality of tuning links for adjusting resonance points of different frequencies of the coil;
the signal control circuit 20 is configured to control generation of an adjustable signal corresponding to a signal frequency and a signal type according to an external control instruction, and generate a corresponding first control signal according to the adjustable signal, and the driving tuning circuit 30 is configured to automatically configure a tuning link corresponding to the adjustable signal according to the first control signal, and drive a coil to generate a corresponding alternating electromagnetic field according to the adjustable signal through the tuning link, wherein the alternating electromagnetic field is excited to act on a target object, and the interval between the coil and the target object is set.
Specifically, the signal control circuit receives an external control instruction to control generation of an adjustable signal corresponding to the frequency and the type of the signal, wherein the signal control circuit generates the adjustable signal in a signal modulation mode, the adjustable signal can control the frequency and the electric field intensity of the alternating electromagnetic field, the signal control circuit realizes control of the alternating electromagnetic field through the frequency, the type and the intensity of the signal, and meanwhile, the signal control circuit is also used for controlling selection and configuration of a tuning link in the driving tuning circuit, and particularly, corresponding first control signals are generated according to the adjustable signal to realize relevant control on the driving tuning circuit.
Specifically, the driving tuning circuit is controlled by the adjustable signal to drive the coils to generate an alternating electromagnetic field, wherein the driving tuning circuit selects a tuning link of driving output of the driving tuning circuit according to a first control signal corresponding to the adjustable signal, the output end of each tuning link is connected with the coils, the tuning link transmits alternating current signals which are driven by the driving tuning circuit to the coils to drive the coils to generate the alternating electromagnetic field, frequency resonance points of the coils corresponding to different tuning links are different, and particularly, the frequency of the alternating electromagnetic field generated by the driving coils is enabled to be near the corresponding frequency resonance points according to the signal frequency of the adjustable signal, so that good emission efficiency is achieved. In some embodiments, the tuning links achieve the purpose of tuning the antenna through the tunable units therein, and the specific driving tuning circuit adjusts the tunable units in each tuning link according to the range of the tunable signal, so as to adjust each resonance point, thereby enabling the frequency band of the whole coil to cover the required range, and further, the tunable units can be devices such as an adjustable capacitor.
In some embodiments, the coils may be planar coils, and the shape of the planar coils may be circular, oval, square, rectangular, so as to approximate the shape of the physiotherapy site of the target object, while the number of coils may be one or more, and the plurality of coils may be arranged side by side or opposite to each other so as to fully cover the site requiring physiotherapy. Referring to fig. 2, the generated alternating electromagnetic field acts on tumor cells 2 of a target object 1, the target object 1 may be a body part, and the coil 10 is attached to the target object 1 and keeps a certain interval with the target object 1, and the two are very close to each other, so as to ensure the optimal electromagnetic field acting effect, and in particular, the coil can be separated by some insulating materials.
According to the non-contact electromagnetic field excitation device, on one hand, the driving output of the plurality of different tuning links can form a plurality of resonance points on the same coil, so that the wider frequency band is covered, the application range is wider, the emission efficiency of the coil can be ensured to be always above the required efficiency under the driving output conditions of frequency sweeping, frequency conversion and the like, the excitation effect is ensured, the energy efficiency is further improved, the corresponding resonance frequency can be independently regulated through each tuning link, the range of the frequency band can be accurately regulated through the regulation of each resonance point, the application range is further improved, on the other hand, the coil is well attached to a target object, the coil is kept at a certain interval with the target object, the risk of infection and breaking is avoided, the coil is comfortable and easy to use, the shape of the physiotherapy part of the coil and the target object is attached, the optimal physiotherapy effect can be achieved, meanwhile, the electromagnetic field generated by the coil can be conveniently controlled through the control driving circuit electrically connected with the coil, the physiotherapy requirements of various required modes are met, and the operation is simple and the effect is good.
In one embodiment, referring to fig. 1, the signal control circuit 20 includes a micro control unit 21, a digital signal synthesis module 22, an attenuator module 23, and an amplifying and filtering module 24, where the micro control unit 21 is electrically connected to the digital signal synthesis module 22 and the attenuator module 23, the digital signal synthesis module 22 is electrically connected to the attenuator module 23, and the attenuator module 23 is electrically connected to the driving tuning circuit 30 through the amplifying and filtering module 24; the micro control unit 21 is used for controlling the signal frequency and the signal type of the signal generated by the digital signal synthesis module 22 and controlling the attenuation multiple of the attenuator module 23 according to the external control instruction, and the amplifying and filtering module 24 is used for amplifying and filtering the signal generated by the digital signal synthesis module 22 and output by the attenuator module 23 to obtain an adjustable signal.
Specifically, referring to fig. 3, the micro control unit may be implemented by using a micro control chip, or may also be implemented by using other control circuits, such as a CPU, and the like, and simultaneously, power is supplied through a power chip, where the micro control unit communicates with an external host computer, obtains a control instruction, and obtains corresponding configuration data by analyzing the control instruction, where the configuration data includes, but is not limited to, configuration information of a data signal synthesis module and an attenuator module, and implements control of the digital signal synthesis module and the attenuator module based on the configuration data, so as to implement control of an adjustable signal.
Specifically, referring to fig. 4, the digital signal synthesis module may be implemented by using a digital signal synthesis chip, or may also be implemented by using other signal generators, for example, a signal generator is formed by a reference oscillator, a frequency synthesis module, a modulation module, a level control module, etc., where by receiving configuration information of the micro control unit, a desired signal is generated by a digital signal synthesis technology, a signal type may be a sine wave, a square wave, a triangular wave, etc., a signal frequency may include a range from 0.1kHz to 1MHz, an output form corresponding to the signal includes a fixed frequency mode and a sweep frequency mode, the fixed frequency mode is a fixed frequency output, the sweep frequency mode is a variable frequency output, and various different signals may be formed by different combinations of a signal type, a signal frequency, a signal output form, so as to generate different alternating electromagnetic fields.
Specifically, referring to fig. 5 and 6, the attenuator module may be implemented by using an attenuator chip, or may also be implemented by using other attenuators, and the amplifying and filtering module adopts an operational amplifier, where the attenuator module cooperates with the amplifying and filtering module to implement signal intensity control of the adjustable signal, so as to adjust electric field intensity of the alternating electromagnetic field generated by the coil, the attenuator module receives configuration information of the micro control unit, sets signal attenuation multiple, and a signal output by the digital signal synthesis module is subjected to signal attenuation by the attenuator module, and then is subjected to signal amplification processing by the amplifying and filtering module, so as to obtain a required adjustable signal. In some embodiments, the amplification and filtering module further includes a filter for signal filtering processing to filter out interfering signals in the signal.
In one embodiment, the signal control circuit further includes a communication module electrically connected to the micro control unit, for communicating with an external host computer to obtain the control instruction, where the communication module may be based on wired communication, such as serial communication, bus communication, and the like, or may be based on wireless communication technologies, such as bluetooth, WIFI, zigbee, and the like.
In one embodiment, referring to fig. 1, the driving tuning circuit 30 includes a driving module 31 and a tuning module 32, the driving module 31 is electrically connected to the coil 10 through the tuning module 32, the driving module 31 is used for converting the tunable signal into a driving signal, the tuning module 32 is used for automatically configuring a tuning link of the driving signal output according to a signal frequency of the tunable signal, and the driving signal drives the coil 10 through the tuning link to generate an alternating electromagnetic field.
Specifically, referring to fig. 7, the driving module includes at least a current driving chip for converting the adjustable signal into a driving signal. The current driving chip generates corresponding alternating current signals according to the input adjustable signals so as to drive the coil to generate alternating electromagnetic fields, wherein the adjustable signals are different, the output alternating current signals are different, and the frequency and the type of the output alternating current signals are controlled through the signal frequency and the signal type of the adjustable signals, so that the frequency and the electric field intensity of the alternating electromagnetic fields are controlled.
Specifically, referring to fig. 8, the tuning module 32 includes at least a multiplexing switch 321 and tunable units 322 in each tuning link, the driving module is electrically connected to one end of each tunable unit 322 via the multiplexing switch 321, and the other end of each tunable unit 322 is electrically connected to a different tap of the coil, and referring to fig. 10, the number of turns of the coil corresponding to the different tap is different. The micro control unit in the signal control module generates a first control signal according to the output frequency of the adjustable signal so as to control the multiplexing switch to select a tuning link corresponding to the adjustable signal, namely a tuning link for driving the signal output, so that the frequency of the adjustable signal is matched with the resonance frequency, meanwhile, the signal control module can also control the tuning unit in each tuning link, so that the adjustment of the frequency resonance point corresponding to the coil is realized, the number of turns of the corresponding coil is adjusted through different taps connected with the tuning link, the adjustment of the frequency resonance point corresponding to the coil is realized, namely the number of turns of the coil is adjusted to realize the rough adjustment function of the frequency resonance point, the tunable unit is arranged to realize the fine adjustment function of the frequency resonance point, and the tuning unit and the tunable unit are matched to realize the precise adjustment of the frequency resonance point of the coil. Referring to fig. 11, a plurality of tuning links are used to adjust a plurality of resonance points of the coil, and each resonance point can be adjusted by a corresponding tunable unit, so that a wide range of frequency bands can be covered, and the maximum emission efficiency of the coil in the covered frequency bands can be ensured.
In one embodiment, referring to fig. 1 and 9, the driving tuning circuit 30 further includes an acquisition module 33 for acquiring a driving current and a driving voltage outputted by the driving signal, the signal control circuit 20 is further configured to generate a second control signal according to a phase difference between the driving current and the driving voltage, and the tuning module 32 is further configured to adjust the tunable unit according to the second control signal to adjust the emission efficiency of the coil.
Specifically, the micro control unit in the signal control circuit outputs the driving current and the driving voltage through the driving signal acquired by the acquisition module, and configures each tunable unit through the second control signal, so that the phase difference between the driving current and the driving voltage tends to 0 or reaches a preset requirement, and the emission efficiency of the coil is maximized or reaches the preset requirement. Referring to fig. 9, in this embodiment, the current and the voltage are collected through the sampling resistor, and the phase difference between the driving current and the driving voltage is identified through the phase discriminator, so that the micro-control unit can adjust the emission efficiency, and the emission efficiency of the coil is maximized or reaches the preset requirement.
In some embodiments, the micro control unit in the signal control circuit can also perform circuit monitoring based on the driving current and the driving voltage, and is connected with the output condition of the driving tuning circuit, when abnormal conditions such as short circuit, overvoltage and the like occur, the output of the driving tuning circuit is stopped in time through the control of the micro control unit, so that the effect of circuit protection is achieved.
In one embodiment, the coil is disposed on a PCB substrate, which is a rigid substrate, adapted to the flat body surface of the target object, or an FPC substrate, which is a flexible substrate, adapted to the curved body surface of the target object, and of course, the coil may be more closely attached to the body surface of the target object by a combination of both methods, thereby sufficiently covering the region of the target object where physiotherapy is required.
The present embodiment will now be described in detail with reference to specific circuits, but is not limited thereto.
Referring to fig. 3 to 10, in this embodiment, a Micro Control Unit (MCU) controls a digital signal synthesis module (DDS) to generate a signal a with a required frequency, where the model may be a sine wave signal, a square wave signal, etc., and the signal a is passed through an attenuator module to obtain a signal B, and then amplified by an amplifying filter module to generate an adjustable signal C, and the adjustable signal C is input to a driving module to generate a driving signal D, and meanwhile, the micro control unit controls a multiplexing switch in a tuning module according to the frequency of the adjustable signal to select a tuning link corresponding to a matched resonant frequency, and the driving signal D passes through a tuning link driving coil automatically selected in the tuning module to generate an alternating electromagnetic field.
In the specific circuit, referring to fig. 3 to 10, the upper computer configures the micro CONTROL unit MCU through the bluetooth communication module, the micro CONTROL unit MCU configures the digital signal synthesis module through the mcu_spi signal of the SPI pin according to the configuration data, the micro CONTROL unit configures the attenuation multiple of the attenuator module through the CONTROL [0 … ] signal of the GPIO pin, the digital signal synthesis module generates a sine wave a with a corresponding frequency at the IOUTB end, the signal a is input to the RF1 of the signal digital attenuator module, the attenuated signal B is output from the RF2, the signal B is amplified by the operational amplifier of the amplifying and filtering module to generate a signal C, the signal C is input to the current driving chip from the INP interface to generate a driving signal D and output to the tuning module from the OUT pin, the micro CONTROL unit CONTROLs the multiplexing SWITCH to select the tuning links S1 to S4 of the driving signal D output through the mcu_switch_ctr [0 … ] signal of the GPIO pin, and the driving signal D is input to the corresponding tap of the coil through the selected tuning link, thereby generating an alternating electromagnetic field by the driving coil. Meanwhile, the voltage and current signals of the driving signal D are collected through the collecting module, the phase difference between the voltage and current signals is identified through the phase discriminator, the phase difference is fed back to the micro-control unit through the MCU_VPHS signal, and the micro-control unit adjusts the size of the capacitor through the CTR [0 … ] of the GPIO interface, so that the emission efficiency of the coil is maximized or reaches the preset requirement.
The present embodiment will now be described in detail with reference to the test results, but is not limited thereto.
The device of the embodiment can control and output alternating electromagnetic fields with the frequency of 0.1kHz to 1MHz and the electric field intensity of 0.1V/cm to 10V/cm, and the output waveforms can be: sine waves, square waves, triangular waves and the like are utilized to act on tumor cells by utilizing an alternating electromagnetic field with a sweep frequency of 10kHz to 1MHz, a stepping frequency of 10kHz and an electric field intensity of 1V/cm, the change of the tumor cells is shown in a graph of fig. 12, the graph shows that the OD values of two groups of tumor cells AB are 1.0 before being placed, the OD value of the tumor cells A is about 1.3 after 48 hours, the OD value of the tumor cells B is 0.9 after the sweep effect of the electromagnetic field is utilized, and the device of the embodiment has an inhibition effect on the division and diffusion of the tumor cells.
Based on the same inventive concept, the embodiments of the present application also provide a non-contact electromagnetic field excitation method for implementing the above-mentioned related non-contact electromagnetic field excitation device. The implementation of the solution provided by the method is similar to that described in the above device, so the specific limitation in the embodiments of the method for exciting a non-contact electromagnetic field provided below may be referred to as the limitation of the non-contact electromagnetic field excitation device hereinabove, and will not be repeated here.
In one embodiment, as shown in fig. 13, there is provided a non-contact electromagnetic field excitation method, including the steps of:
s100: acquiring a control instruction;
s200: generating an adjustable signal corresponding to the signal frequency and the signal type according to the control instruction, and generating a corresponding first control signal according to the adjustable signal;
s300: and automatically configuring a tuning link corresponding to the adjustable signal according to the first control signal, and driving a coil to generate a corresponding alternating electromagnetic field through the tuning link according to the adjustable signal.
In one embodiment, automatically configuring a tuning link corresponding to the tunable signal according to the first control signal, and driving the coil through the tuning link according to the tunable signal to generate the corresponding alternating electromagnetic field includes: the driving module converts the adjustable signal into a driving signal, the tuning module automatically configures a tuning link for outputting the driving signal according to the first control signal, and the driving signal of the tuning link drives the coil to generate a corresponding alternating electromagnetic field.
In one embodiment, the method further comprises: and collecting driving current and driving voltage output by the driving signal, generating a second control signal by the signal control circuit according to the phase difference between the driving current and the driving voltage, and adjusting the tunable unit by the tuning module according to the second control signal so as to adjust the emission efficiency of the coil.
In one embodiment, the signal control circuit also performs circuit monitoring and protection based on the drive current and the drive voltage.
In one embodiment, generating the adjustable signal corresponding to the signal frequency and the signal type according to the control instruction includes: the micro control unit controls the signal frequency and the signal type of the signals generated by the digital signal synthesis module according to the external control instruction, and controls the attenuation multiple of the attenuator module, and the amplifying and filtering module amplifies and filters the signals generated by the digital signal synthesis module and output by the attenuator module to obtain adjustable signals.
In one embodiment, as shown in fig. 14, there is provided a wearable device comprising: the wearable body 40 and the non-contact electromagnetic field excitation device according to any of the above embodiments, wherein the coil 10 is disposed on a side of the wearable body 40 close to the target object, and the coil 10 is disposed at a distance from the target object. In some embodiments, referring to fig. 15-19, the wearable body is a head-mounted body or a waistband-type body or a backpack-type body or a clothing-type body, the head-mounted body may be a hat-type, a headband-type, etc., the waistband-type body may be a belt-type, etc., the backpack-type body may be a slant-straddle type, a double-shoulder type, etc., the clothing-type body may be an undergarment-type, a coat-type, a scarf-type, etc.
In particular, the coil may be rectangular or circular, or may be otherwise adapted to the shape of the wearable body, so as to better conform to the user surface to reduce the play enhancing effect.
Specifically, the coil may be a coil obtained based on a common winding manner, for example, a wire wrapping manner is used for winding, an enameled wire is used for winding, a wire wrapping manner is used for winding on the ferrite magnetic sheet, and the like, the coil may also be a coil obtained based on a printed circuit board manufacturing Process (PCB) or a flexible circuit board manufacturing process (FPC), and the coil may also be a coil obtained based on a braiding process, for example, a conductive wire (wire wrapping, enameled wire) is braided into the wearable garment in a braiding process according to a coil arrangement manner, so that the comfort of the wearable garment is improved.
In one embodiment, referring to fig. 14, the wearable device further includes a temperature sensor 50 electrically connected to the signal control circuit 20, where the temperature sensor 50 is disposed at a position corresponding to the coil 10 in the wearable body 40, and is used for detecting an operating temperature of the coil 10, and the signal control circuit 20 is further used for adjusting the adjustable signal or turning off the output of the adjustable signal according to the operating temperature.
Specifically, the temperature sensor can be placed at the center of the coil to accurately measure the temperature of the coil during operation, wherein when the temperature of the coil is too high, the signal control circuit in the non-contact electromagnetic field excitation device can reduce the output power of the driving tuning circuit by adjusting the output of the adjustable signal, or can close the output of the adjustable signal to stop the output of the driving tuning circuit, so that the safety and the comfort of wearing are ensured.
In one embodiment, referring to fig. 20 and 21, the non-contact electromagnetic field excitation device is provided with a plurality of coils that are tiled and/or stacked between them.
Specifically, the coils may be connected in series or in parallel, where, referring to fig. 20, any two coils may be tiled to obtain a larger electromagnetic field acting area, so as to act on a larger portion, and referring to fig. 21, any two coils may also be stacked to obtain a larger electromagnetic field acting strength, so as to act on a deeper portion. Furthermore, the two modes can be combined with each other according to actual requirements so as to obtain an electromagnetic field with larger area and stronger strength.
In one embodiment, the coil is electrically connected with the driving tuning circuit through a plug interface, and the coil is fixed on the wearable body through an insulating braided wire or a magic tape or a pocket.
Specifically, a plug interface is adopted between the coil and the driving tuning circuit, so that different coils can be conveniently replaced, and the non-contact electromagnetic field excitation device is convenient to realize multiple purposes. The coil can be fixed on the wearable body through modes such as insulating braided wire, magic subsides, pocket type, wherein, the braiding mode is through adopting insulating braided wire, fix the coil on the wearable dress, this mode can make coil and wearable dress laminating inseparable, and melt as an organic wholely with the wearable body, there is not obvious abrupt sense, and be difficult for droing, the magic subsides mode is through this coil back subsides magic subsides (LOOP), thereby fix the corresponding magic subsides (HOOK) position at the wearable body, this mode can dismantle, convenient to use relatively and simple, also be convenient for the washing of wearable body, the pocket fixed mode is through on the corresponding position of wearable dress, the pocket that is sewed up with the coil matches for place and fix the coil, this mode is fixed relative position, be difficult for droing.
Other specific limitations regarding the wearable device may be found in the above-mentioned limitations regarding the non-contact electromagnetic field excitation means, which are not repeated here.
In one embodiment, a physiotherapy platform is provided, which comprises a fixed platform and the non-contact electromagnetic field excitation device in any one of the embodiments, wherein the coil is arranged on one side of the fixed platform, which is close to the target object, and the coil and the target object are arranged at intervals. In some embodiments, the stationary platform may be a structure that provides a lying, such as a bed structure, the stationary platform may also provide a sitting structure, such as a recliner structure, and so forth.
For specific limitations of the physiotherapy platform, reference may be made to the above-mentioned limitations of the non-contact electromagnetic field excitation device, and no further description is given here.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (13)
1. A non-contact electromagnetic field excitation device, comprising: the device comprises a signal control circuit, a driving tuning circuit and a coil, wherein the signal control circuit is electrically connected with the coil through the driving tuning circuit, and the driving tuning circuit is provided with a plurality of tuning links for adjusting resonance points of different frequencies of the coil;
the signal control circuit is used for controlling to generate an adjustable signal corresponding to signal frequency and signal type according to an external control instruction and generating a corresponding first control signal according to the adjustable signal, the driving tuning circuit is used for automatically configuring the tuning link corresponding to the adjustable signal according to the first control signal and driving the coil to generate a corresponding alternating electromagnetic field through the tuning link according to the adjustable signal, wherein the alternating electromagnetic field is excited to act on a target object, and the coil and the target object are arranged at intervals.
2. The apparatus of claim 1, wherein the drive tuning circuit comprises a drive module and a tuning module, the drive module being electrically connected to the coil via the tuning module, the drive module being configured to convert the tunable signal into a drive signal, the tuning module being configured to automatically configure the tuning link for the drive signal output in accordance with the first control signal, and to drive the coil via the drive signal of the tuning link to generate the corresponding alternating electromagnetic field.
3. The apparatus of claim 2, wherein the tuning module comprises at least a multiplexing switch and a tunable element in each of the tuning links, the driving module is electrically connected to one end of each of the tunable elements via the multiplexing switch, the other end of each of the tunable elements is electrically connected to a different tap of the coil, and the number of turns of the coil corresponding to the different tap is different;
the multiplexing switch is used for selecting the tuning link, and the tunable unit is used for adjusting the frequency resonance point corresponding to the coil.
4. The apparatus of claim 2, wherein the drive tuning circuit further comprises an acquisition module for acquiring a drive current and a drive voltage of the drive signal output, the signal control circuit further for generating a second control signal based on a phase difference between the drive current and the drive voltage, the tuning module further for adjusting the tunable unit based on the second control signal to adjust the emission efficiency of the coil.
5. The apparatus of claim 4, wherein the signal control circuit is further configured to perform circuit monitoring and protection based on the drive current and the drive voltage.
6. The apparatus of any one of claims 1 to 5, wherein the signal control circuit comprises a micro control unit, a digital signal synthesis module, an attenuator module, and an amplifying and filtering module, the micro control unit is electrically connected to the digital signal synthesis module and the attenuator module, the digital signal synthesis module is electrically connected to the attenuator module, and the attenuator module is electrically connected to the driving tuning circuit through the amplifying and filtering module;
the micro control unit is used for controlling the signal frequency and the signal type of the signals generated by the digital signal synthesis module according to the external control instruction and controlling the attenuation multiple of the attenuator module, and the amplifying and filtering module is used for amplifying and filtering the signals generated by the digital signal synthesis module and output by the attenuator module and filtering the signals to obtain the adjustable signals.
7. The device of claim 6, wherein the signal control circuit further comprises a communication module electrically connected to the micro control unit for communicating with an external host computer to obtain the control command.
8. A method of non-contact electromagnetic field excitation, comprising the steps of:
acquiring a control instruction;
generating an adjustable signal corresponding to the signal frequency and the signal type according to the control instruction, and generating a corresponding first control signal according to the adjustable signal;
and automatically configuring a tuning link corresponding to the adjustable signal according to the first control signal, and driving a coil to generate a corresponding alternating electromagnetic field through the tuning link according to the adjustable signal.
9. A wearable device, comprising a wearable body and a non-contact electromagnetic field excitation device according to any one of claims 1 to 7, wherein a coil is arranged on one side of the wearable body close to a target object, and the coil and the target object are arranged at intervals, and the wearable body is a head-wearing body or a waistband-type body or a backpack-type body or a clothing-type body.
10. The wearable device of claim 9, further comprising a temperature sensor electrically connected to a signal control circuit, wherein the temperature sensor is disposed in the wearable body at a position corresponding to the coil for detecting an operating temperature of the coil, and wherein the signal control circuit is further configured to adjust the adjustable signal or turn off an output of the adjustable signal based on the operating temperature.
11. A wearable device according to claim 9, characterized in that the non-contact electromagnetic field excitation means is provided with a plurality of coils, a plurality of said coils being tiled and/or laminated between each other.
12. The wearable device according to any of claims 9 to 11, wherein the coil is electrically connected to the drive tuning circuit via a plug interface, and the coil is fixed to the wearable body via an insulated braided wire or a velcro or a pocket.
13. A physiotherapy table comprising a fixed table and a non-contact electromagnetic field excitation device according to any one of claims 1 to 7, wherein a coil is provided on a side of the fixed table close to a target object, and the coil is spaced from the target object.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684234.3A CN116077833A (en) | 2022-12-27 | 2022-12-27 | Non-contact electromagnetic field excitation device and method, wearable equipment and physiotherapy platform |
| PCT/CN2023/127062 WO2024139610A1 (en) | 2022-12-27 | 2023-10-27 | Non-contact electromagnetic field excitation apparatus and method, wearable device, and physiotherapy platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684234.3A CN116077833A (en) | 2022-12-27 | 2022-12-27 | Non-contact electromagnetic field excitation device and method, wearable equipment and physiotherapy platform |
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| CN116077833A true CN116077833A (en) | 2023-05-09 |
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| CN202211684234.3A Pending CN116077833A (en) | 2022-12-27 | 2022-12-27 | Non-contact electromagnetic field excitation device and method, wearable equipment and physiotherapy platform |
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| CN (1) | CN116077833A (en) |
| WO (1) | WO2024139610A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024139610A1 (en) * | 2022-12-27 | 2024-07-04 | 赛福凯尔(绍兴)医疗科技有限公司 | Non-contact electromagnetic field excitation apparatus and method, wearable device, and physiotherapy platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080179A1 (en) * | 2002-03-27 | 2003-10-02 | Nippon Sigmax Co., Ltd. | Cytokine controlling device, treating device and treating method |
| CN113692302A (en) * | 2019-02-07 | 2021-11-23 | V·K·沙玛 | System and method for treating cancer cells with alternating polarity magnetic fields |
| IL303111A (en) * | 2020-08-07 | 2023-07-01 | Vivek K Sharma | System and methods for treating cancer cells with alternating polarity magnetic fields |
| CN114690097B (en) * | 2022-03-30 | 2024-11-05 | 深圳市联影高端医疗装备创新研究院 | Physiotherapy coil, magnetic resonance system and physiotherapy method |
| KR102453614B1 (en) * | 2022-04-08 | 2022-10-12 | (주)엠알 | Magnetic field therapy device capable of providing multiple stimulation |
| CN116077833A (en) * | 2022-12-27 | 2023-05-09 | 赛福凯尔(绍兴)医疗科技有限公司 | Non-contact electromagnetic field excitation device and method, wearable equipment and physiotherapy platform |
-
2022
- 2022-12-27 CN CN202211684234.3A patent/CN116077833A/en active Pending
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2023
- 2023-10-27 WO PCT/CN2023/127062 patent/WO2024139610A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024139610A1 (en) * | 2022-12-27 | 2024-07-04 | 赛福凯尔(绍兴)医疗科技有限公司 | Non-contact electromagnetic field excitation apparatus and method, wearable device, and physiotherapy platform |
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| WO2024139610A1 (en) | 2024-07-04 |
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