阅读说明：本技术 中枢神经磁刺激装置 (Central nerve magnetic stimulation device ) 是由 郑云峰 于 2021-02-02 设计创作，主要内容包括：本申请涉及一种中枢神经磁刺激装置,包括、电源、控制电路、磁场发生器和生物传感器,控制电路包括主电路和通信模块；磁场发生器与控制电路连接,用于在控制电路的控制下,输出时变磁场；生物传感器与控制电路连接,用于获取使用者的生物信息；通信模块与主电路连接,用于接收来自外部远程数据库服务器中的使用者生物信息,供主电路根据远程数据库服务器基于用户生物信息确定的用户身份或用户状态控制磁场发生器的输出,为提供个性化、处方化的装置使用方法以及通过对使用者的状态监控,及时做出适当干预,避免使用者误操作。(The application relates to a central nerve magnetic stimulation device, which comprises a power supply, a control circuit, a magnetic field generator and a biosensor, wherein the control circuit comprises a main circuit and a communication module; the magnetic field generator is connected with the control circuit and used for outputting a time-varying magnetic field under the control of the control circuit; the biosensor is connected with the control circuit and used for acquiring biological information of a user; the communication module is connected with the main circuit and used for receiving the biological information of the user from an external remote database server, and the main circuit controls the output of the magnetic field generator according to the user identity or the user state determined by the remote database server based on the biological information of the user, so that the personalized and prescribed device using method is provided, proper intervention is made in time through monitoring the state of the user, and misoperation of the user is avoided.)

1. A central nerve magnetic stimulation device comprises a power supply, a control circuit and a magnetic field generator, and is characterized by also comprising a biosensor;

the control circuit receives information from the biosensor.

2. A central nervous magnetic stimulation apparatus according to claim 1, wherein the power source is connected to the control circuit for providing electrical power to the apparatus;

the magnetic field generator is connected with the control circuit and used for outputting a time-varying magnetic field;

the biosensor is used for acquiring biological information of a user;

the control circuit comprises a main circuit and a communication module.

3. The magnetic stimulation device according to claim 2, wherein the biosensor is configured to collect biological information of the user;

the preset remote database server controls the magnetic field generator to output a time-varying magnetic field through the main circuit based on the user biological information; wherein controlling the magnetic field generator to output a time-varying magnetic field comprises controlling whether the magnetic field generator outputs a time-varying magnetic field and controlling the magnetic field generator to output a time-varying magnetic field of appropriate parameters.

4. A central nervous magnetic stimulation device according to claim 2, characterized in that the biosensor is an electroencephalogram signal sensor, and/or an electrocardiograph signal sensor, and/or an oximetry signal sensor, and/or an echocardiography sensor, and/or a near infrared ray sensor, and/or a face recognition sensor, and/or an expression recognition sensor, and/or an iris recognition sensor, and/or a skin electrical sensor, and/or an electromyography sensor.

5. A central nervous magnetic stimulation device according to claim 2, wherein the communication module is a wireless communication module.

6. A central nervous magnetic stimulation device according to claim 5, wherein the wireless communication module is a cellular mobile communication module and/or a Bluetooth communication module and/or an NB-IOT module and/or a wifi module.

7. A central nervous magnetic stimulation device according to claim 4, wherein the primary circuit receives information from a biosensor;

the biosensor is directly connected with the control circuit, or is connected with the main circuit through a wireless communication module, or is indirectly connected with the main circuit through a communication module after analyzing or relaying or converting the biological information acquired by the biosensor through a remote server.

8. A central nervous magnetic stimulation apparatus according to claim 1, wherein the magnetic field generator comprises a coil portion;

the coil part comprises a plurality of coils which are output independently;

the plurality of coils are output in a synchronous manner, or the plurality of coils are divided into a plurality of combinations and output in a combined manner.

9. A central nervous magnetic stimulation device according to claim 1, wherein the control circuit causes the magnetic field generator to generate a corresponding rhythmic time-varying magnetic field by outputting a time-varying current having a preset carrier frequency and a combined rhythm to the magnetic field generator;

the preset carrier frequency range is 100-20000 Hz, and the frequency range of the combined rhythm is 0.01Hz-200 Hz.

10. A central nervous magnetic stimulation apparatus according to claim 9, wherein the preset carrier frequency is 2500Hz and the combined rhythm is 30-40 Hz.

Technical Field

The application belongs to the technical field of medical or health care instruments, and particularly relates to a central nerve magnetic stimulation device.

Background

The transcranial magnetic stimulation technology is an effective intervention means generally accepted in the current neural regulation field, can achieve the weak-intensity rhythmic transcranial magnetic stimulation technology of deep brain, and has good application prospect due to the characteristic of safe and household use.

In the prior art, medical health care instruments used at home do not have related human body biological recognition function. If the human biological information can be identified and whether the human biological information is output or not is determined according to the human biological information, misoperation can be avoided; furthermore, if the identity of the user can be accurately and automatically identified, the method is favorable for individualized and prescription use and realizes accurate intervention; furthermore, if the user identity can be identified, the state of the user can also be identified, and the intervention effect can be evaluated, intelligent intervention can be realized, and the method is safer and more effective.

Disclosure of Invention

In order to overcome the problems that the prior art, particularly medical health care instruments, cannot identify and record the identity of a user and cannot master various physiological parameters of the user in real time in the using process at least to a certain extent, so that individualized and prescribed equipment cannot be used for different users, real-time accurate intervention is realized, and misoperation is avoided, the application provides a central nerve magnetic stimulation device which is particularly suitable for manufacturing health care or medical instruments and comprises a power supply, a control circuit, a magnetic field generator and a biosensor;

the control circuit receives information from the biosensor.

Optionally, the power supply is connected to the control circuit and configured to provide power to the device;

the magnetic field generator is connected with the control circuit and used for outputting a time-varying magnetic field;

the biosensor is used for acquiring biological information of a user;

the control circuit comprises a main circuit and a wireless communication module.

Optionally, the biosensor is used for collecting biological information of the user;

the preset remote database server controls the magnetic field generator to output a time-varying magnetic field through the main circuit based on the user biological information; wherein controlling the magnetic field generator to output a time-varying magnetic field comprises controlling whether the magnetic field generator outputs a time-varying magnetic field and controlling the magnetic field generator to output a time-varying magnetic field of appropriate parameters.

Optionally, the biosensor is an electroencephalogram signal sensor, and/or an electrocardiosignal sensor, and/or an oximetry signal sensor, and/or an impulse cardiogram sensor, and/or a near infrared ray sensor, and/or a face recognition sensor, and/or an expression recognition sensor, and/or an iris recognition sensor, and/or a skin electric sensor, and/or an electromyography sensor.

Optionally, the communication module is a wireless communication module.

Optionally, the wireless communication module is a cellular mobile communication module and/or a bluetooth communication module and/or an NB-IOT module and/or a wifi module.

Optionally, the main circuit receives information from a biosensor;

the biosensor is directly connected with the control circuit, or is connected with the main circuit through a wireless communication module, or is indirectly connected with the main circuit through a communication module after analyzing or relaying or converting the biological information acquired by the biosensor through a remote server.

Optionally, the magnetic field generator comprises a coil portion;

the coil part comprises a plurality of coils which are output independently;

the plurality of coils are output in a synchronous manner, or the plurality of coils are divided into a plurality of combinations and output in a combined manner.

Optionally, the control circuit outputs a time-varying current with a preset carrier frequency and a combined rhythm to the magnetic field generator, so that the magnetic field generator generates a corresponding rhythmic time-varying magnetic field;

the preset carrier frequency range is 100-20000 Hz, and the frequency range of the combined rhythm is 0.01Hz-200 Hz.

Optionally, the preset carrier frequency is 2500Hz, and the combined rhythm is 30-40 Hz.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

the central nerve magnetic stimulation device provided by the embodiment of the invention comprises a power supply, a control circuit, a magnetic field generator and a biosensor, wherein the control circuit comprises a main circuit and a wireless communication module; the power supply is connected with the control circuit and used for supplying electric energy to the device; the magnetic field generator is connected with the control circuit and used for outputting a time-varying magnetic field under the control of the control circuit; the biological sensor is used for acquiring biological information of a user; the wireless communication module is connected with the main circuit and used for receiving the biological information, transmitting the biological information to an external remote database server under the control of the main circuit, and determining the identity or the state of the user and controlling the working state of the central nerve magnetic stimulation device by the remote database server based on the biological information. Therefore, the biological information of the user is acquired through the biological identification sensor, and is transmitted to the external remote database server through the main circuit or the communication module, so that the remote database server can determine the identity or the state of the user, the identity and the state of the user can be judged, the device can be operated and intervened, the long-term health tracking can be carried out on the user, and an individualized and prescription treatment scheme can be provided.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

FIG. 1 is a block diagram of an embodiment of a central nervous system magnetic stimulation apparatus;

FIG. 2 is a simplified diagram of the coil arrangement of a magnetic field generator in a three-coil configuration for a particular embodiment of a central nervous system magnetic stimulation apparatus;

FIG. 3 is a simplified diagram of the coil arrangement of a magnetic field generator in a two-coil configuration for a particular embodiment of a central nervous system magnetic stimulation apparatus;

FIG. 4 is a simplified diagram of a coil assembly of the magnetic field generator of an embodiment of the central nervous system magnetic stimulation apparatus of the present invention, wherein the coil assembly is a two-coil structure.

In FIGS. 1-4:

a control circuit 101, a power supply 102, a biosensor 103, a magnetic field generator 104, a main circuit 105, and a wireless communication module 106.

Detailed Description

The core of the invention is to provide a central nerve magnetic stimulation device which can apply magnetic stimulation with approximately uniform magnetic field intensity distribution to the brain to reach deep brain and can automatically identify the identity of a user, thereby facilitating the personalized and prescribing treatment of the user, simultaneously monitoring the state of the user in real time, intervening and avoiding the misoperation of the user. In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1:

fig. 1 is a block diagram of a central nervous magnetic stimulation apparatus according to an embodiment of the present invention, and as shown in fig. 1, the central nervous magnetic stimulation apparatus according to the present invention includes a control circuit 101, a power source 102, a biosensor 103, and a magnetic field generator 104; the power supply 102 is connected with the control circuit 101 and used for supplying electric energy to the device; the magnetic field generator 104 is connected to the control circuit 101 for generating a time-varying magnetic field. The control circuit 101 comprises a main circuit 105 and a wireless communication device 106, wherein the main circuit 105 mainly comprises a semiconductor device and a peripheral circuit thereof, the main circuit 105 is connected with the magnetic field generator 104, and the magnetic field generator 104 generates a time-varying magnetic field by generating a time-varying current and outputting the time-varying current to the magnetic field generator 104, and the magnetic field generator 104 is controlled to generate a corresponding time-varying magnetic field by controlling parameters of the time-varying current; specifically, the time-varying current is a time-varying current with a preset carrier frequency and a combined rhythm, the preset carrier frequency range is 100-20000 Hz, and the frequency range of the combined rhythm is 0.01Hz-200 Hz; preferably, the predetermined carrier frequency may be 2500Hz with a combined rhythm of 30-40Hz, such that the coil portion of the magnetic field generator 104, upon receiving the time-varying current, generates a corresponding rhythmic time-varying magnetic field.

The biosensor 103 is specifically an electroencephalogram sensor, and after a user wears the electroencephalogram sensor, the electroencephalogram sensor collects electroencephalogram signals of the user and transmits the electroencephalogram information to the main circuit 105. After receiving the electroencephalogram signal of the user, the main circuit 105 sends the electroencephalogram information to a preset device such as a mobile phone and the like through the internal wireless communication module 106 and sends the electroencephalogram information to a preset remote server, the preset device or the remote server compares and analyzes the data, and based on a data comparison and analysis result, a control instruction is sent to the main circuit 105 through the wireless communication module 106 to control whether the central nerve magnetic stimulation device sends out a time-varying magnetic field and output the time-varying magnetic field with what parameters.

It should be noted that the main circuit 105 receives information of the electroencephalogram sensor, and the specific implementation manner may be that the electroencephalogram sensor is directly connected with the main circuit 105, that is, directly connected through a circuit, and directly performs data transmission; the electroencephalogram sensor can also be connected with the main circuit 105 through the wireless communication module 106, that is, the electroencephalogram sensor is wirelessly connected with the wireless communication module 106, and the detected electroencephalogram information is transmitted into the main circuit 105 through the wireless communication module 106; in addition, the electroencephalogram information collected by the electroencephalogram sensor can be analyzed or relayed or converted by the remote server and then indirectly connected with the main circuit 105 through the wireless communication module 106, and the electroencephalogram signal can be transmitted to the main circuit 105.

The application provides a wireless communication module among central nervous magnetic stimulation device is used for realizing data transmission between main circuit 105 and brain electrical sensor and main circuit 105 and external server or equipment, on the one hand, can with brain electrical sensor wireless communication, receive the user brain electrical information that brain electrical sensor transmitted, on the other hand, can also be under main circuit 105's control, with brain electrical information transfer to external server or equipment in, the equipment can be mobile device such as cell-phone etc., supply external server or equipment to carry out contrastive analysis processing to brain electrical information, can also receive the control signal who is sent by external server or equipment simultaneously through wireless communication module 106, thereby realize that external server or equipment carry out remote control to central nervous magnetic stimulation device.

In practical applications, the wireless communication module 106 may adopt a 4G communication module and/or a bluetooth communication module and/or an NB-IOT module and/or a wifi module, and specifically may be set to one or more types according to actual requirements, so as to realize the information transmission function of the central nerve magnetic stimulation device.

FIG. 2 is a simplified diagram of the coil arrangement of a magnetic field generator in a three-coil configuration for a particular embodiment of a central nervous system magnetic stimulation apparatus; FIG. 3 is a simplified diagram of the coil arrangement of a magnetic field generator in a two-coil configuration for a particular embodiment of a central nervous system magnetic stimulation apparatus; as shown in fig. 2 and 3:

in the application, the magnetic field generator is a pair of coils, the size of the coils is matched with that of the brain, and in practical application, the coils can be a plurality of coils which are mutually independent to output; the plurality of coils are output in a synchronous mode, or the plurality of coils are divided into a plurality of combinations to be output in a combined mode, and specifically, the coils can be set according to actual requirements, for example, in fig. 2, a three-coil magnetic field generator is adopted, and three coils are arranged at the positions of temporal lobes and frontal lobes on two sides of the brain of a user, or two-coil magnetic field generators shown in fig. 3 are adopted and arranged on the left side and the right side of the brain of the user.

It should be noted that, because the time-varying current output by the control circuit 101 is a time-varying current with a preset carrier frequency and a combined rhythm, and the waveform is a trapezoidal wave, a sine wave or a triangular wave, and is unipolar or bipolar, the control circuit 101 can control the parameters of the output time-varying magnetic field by changing the time-varying current input into the magnetic field generator 104, that is, controlling what parameter of the time-varying magnetic field is emitted by the magnetic field generator 104, and controlling the magnetic field parameters for different users and different states of the users, so as to adapt to the treatment requirements and improve the treatment effect.

In practical application, the electroencephalogram sensor can be directly integrated with the main circuit 105 and the wireless communication module 106, and when a user uses the electroencephalogram sensor, the whole device is worn at a proper position of the head for use. The electroencephalogram sensor can also be not integrated with the control circuit, and is connected with the main circuit 105 through a connecting wire or wirelessly, so that a user can wear the electroencephalogram sensor at different positions when using the electroencephalogram sensor. Fig. 4 is a simplified diagram of the structure of a coil in a magnetic field generator 104 in a two-coil configuration, according to an embodiment of the central nervous system magnetic stimulation apparatus provided by the present application, as shown in fig. 4:

the user wears the main part and the brain sensor of the central nerve magnetic stimulation device, the brain sensor collects brain signals of the user from the forehead or other positions of the brain, the brain signals are transmitted to an external operation unit and a storage unit through a wireless communication module 106 in the control circuit 101, such as a mobile phone or a remote server, or transmitted to the remote server through the mobile phone, whether the user needs magnetic stimulation intervention or not and what parameters the user specifically needs are judged through comparison and analysis of the operation unit and the storage unit to the biological signals, then, an instruction is output to the control circuit 101 of the central nerve magnetic stimulation device, individualized magnetic stimulation current is output to the magnetic field generator 104, and effective magnetic stimulation intervention is generated.

The head-wearing type central nerve magnetic stimulation device provided by the embodiment adopts the electroencephalogram sensor to collect electroencephalogram information of a user, after the user wears the device body and the electroencephalogram sensor, the electroencephalogram sensor collects electroencephalogram signals of the user from the forehead or other positions of the brain, the electroencephalogram signals are directly or indirectly transmitted to the control circuit 101, the control circuit 101 transmits the electroencephalogram information to an external operation unit and a storage unit through the wireless communication module 106, such as a mobile phone or a remote server, or transmits the electroencephalogram information to the remote server through equipment such as the mobile phone, and the electroencephalogram information is compared and analyzed by the operation unit and the storage unit to obtain identity information or body state information of the user, judge whether the user needs to intervene in the use of the central nerve magnetic stimulation device or not, and judge what parameters are needed for magnetic stimulation intervention, then, the instructions are output to the control circuit 101 of the head-mounted device, and the control circuit 101 controls the magnetic field generator 104 to output individualized magnetic stimulation to generate effective magnetic stimulation intervention.

It can be understood that, the electroencephalogram information characteristics of epileptic seizure of epileptic patients can be prestored in the remote operation unit and the storage unit, and when the electroencephalogram information of a user collected in real time is received, the electroencephalogram information of the user is judged, so that appropriate instructions are timely output to enable the control circuit of the head-mounted device to output preset effective parameters, and therefore, the epileptic seizure prevention or effective intervention is realized, and the safety and treatment effect of the device are improved.

Example 2:

in the head-wearing central nerve magnetic stimulation device provided by the application, the biosensor 103 can also adopt an ear clip type blood oxygen pulse sensor to realize the function of biological signal detection.

Specifically, as in the above embodiments, the ear clip type blood oxygen pulse sensor is directly or indirectly connected to the control circuit 101, so that the user can wear the ear clip type blood oxygen pulse sensor on the ear, after the user wears the head-wearing device body and the ear clip type blood oxygen pulse sensor, the ear clip type blood oxygen pulse sensor collects the pulse information of the user, transmits the pulse information to the control circuit 101, carries out data analysis and processing by the control circuit 101, or the control circuit 101 transmits the pulse information of the user to the external operation unit and the storage unit through the wireless communication module 106, the operation unit and the storage unit analyze and compare the pulse information to obtain the emotional state information of the user, and according to the analysis result of the emotional state information, outputting a proper pre-stored instruction to the head-mounted device, so that the control circuit 101 of the head-mounted device outputs a preset effective parameter according to the control instruction.

The wear-type central nervous magnetic stimulation device that this embodiment provided can acquire user's pulse information automatically, obtains user's emotional state information based on pulse information analysis processes, can control the operating condition of magnetic stimulation device simultaneously based on user emotional state information, when being directed against autism children or depression patient user, can realize endangering in real time and intervene, and the effect is showing.

Example 3:

the application provides a wear-type central nervous magnetism stimulation device, biosensor can also adopt intelligent electrocardio sensor, for example bracelet, wrist-watch, chest subsides etc.. The user can be bound with the intelligent sensor, the intelligent sensor is bound with the head-wearing type central nerve magnetic stimulation device user through identity, and is bound with the head-wearing type central nerve magnetic stimulation device through a wireless communication module or a wireless communication device matched with the intelligent electrocardio sensor, particularly a near field communication protocol, and data transmission is achieved. The user starts the work of the magnetic stimulation device after wearing the head-wearing type magnetic stimulation device and the intelligent sensor at the same time.

In addition, the intelligent sensor can also transmit the collected biological information to an external storage unit and an operation unit through a wireless communication module or equipment matched with the sensor, the external storage unit and the operation unit carry out data processing and storage on the biological information, and long-term tracking and detection on the health state of the user are realized, so that the using effect of the user is summarized, and a more effective personalized and prescribed treatment scheme is provided for the health state of the user.

Example 4:

the central nerve magnetic stimulation device provided by the application can also be of a headrest type or a chair type, and a user can perform magnetic stimulation treatment by resting the device or sitting on the device. The biosensor 103 is placed or installed on a mattress and a seat of the device, the biosensor 103 can adopt a cardiac shock wave sensor, the cardiac shock wave sensor is directly or indirectly connected with the control circuit 101, the direct connection is realized through circuit hardware, the indirect connection can be realized through a near field communication protocol of a wireless communication module, and data transmission is carried out after the connection. In addition, the device will only operate when it is confirmed that the user is present on the mattress or chair.

In the using process, the user and the cardiac shock wave sensor are subjected to identity binding, and biological information collected by the cardiac shock wave sensor can be transmitted to an external storage unit and an operation unit through the wireless communication module 106 of the magnetic stimulation device or a wireless communication device matched with the cardiac shock wave sensor, so that the user identity can be confirmed, the health state of the user can be judged, the magnetic stimulation device can be intervened, the health state of the user can be tracked for a long time, and a personalized and prescription treatment scheme can be provided for the user.

It should be noted that, the present application introduces a magnetic stimulation device with an electroencephalogram sensor, an ear clip type blood oxygen pulse sensor and an intelligent sensor, and a head pillow type or seat type magnetic stimulation device with a cardiac shock wave sensor by way of example, and in practical applications, different sensors may be combined with different types of device bodies, such as a seat type device with an ear clip type blood oxygen pulse sensor. And the types of the biosensors can be replaced and combined according to actual requirements, for example, the sensors can be an electroencephalogram sensor, and/or an electrocardiosignal sensor, and/or an oximetry signal sensor, and/or an echocardiography sensor, and/or a near infrared ray sensor, and/or a face recognition sensor, and/or an expression recognition sensor, and/or an iris recognition sensor, and/or a skin electric sensor, and/or an electromyography sensor, one or more sensors are arranged and installed in the device, different biological information of the user is acquired, identity information and physical state of the user are obtained, appropriate intervention is carried out, and a personalized and prescribed treatment scheme is provided for the user, the principle of the device is the same as that of the embodiment, and the device can be understood by referring to the embodiment, and will not be described in detail herein.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in 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.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional component mode. The integrated module, if implemented in the form of a software functional component and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 application. 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.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

It should be noted that the present invention is not limited to the above-mentioned preferred embodiments, and those skilled in the art can obtain other products in various forms without departing from the spirit of the present invention, but any changes in shape or structure can be made within the scope of the present invention with the same or similar technical solutions as those of the present invention.