Radio wave generator for promoting blood flow velocity in the ophthalmic artery and central retinal artery

Abstract

The radio wave generator comprises a first radio wave generation circuit, a second radio wave generation circuit, and a control module, wherein the first radio wave generation circuit is connected to a first antenna, the second radio wave generation circuit is connected to a second antenna, and the control module controls the activation of the first and second radio wave generation circuits to generate first and second radio waves. The first radio wave has a fundamental wave of a first frequency and a plurality of first harmonics corresponding to the fundamental wave of the first frequency, and the second radio wave has a fundamental wave of a second frequency and a plurality of second harmonics corresponding to the fundamental wave of the second frequency, wherein the fundamental wave of the second frequency is different from the fundamental wave of the first frequency, and the radio wave generator is capable of promoting blood flow velocity in the ophthalmic artery and the central retinal artery.

Description

Technical Field

[0001] The present invention relates to a device for promoting the blood flow velocity of the human body, and more particularly to a radio wave generating device that promotes the blood flow velocity of the ophthalmic artery and the central retinal artery by radio waves.

Background Art

[0002] Blood circulation is extremely important for maintaining the health and body functions of the human body. However, many people are facing the problem of poor blood circulation, which causes various health problems such as muscle pain, dizziness, cold hands and feet, and fatigue. One of the reasons is that the transport efficiency of nutrients by blood decreases due to the slow blood flow velocity.

[0003] Taking the blood flow velocity of the blood vessels in the eye as an example, in modern life, the use of smartphones has become an indispensable part of daily life. However, staring at the screen of electronic devices such as smartphones for a long time is likely to cause eye fatigue, and it is known that one of the reasons is the decrease in the blood flow velocity of the blood vessels in the eye.

[0004] [[ID=I9]] Conventionally, means for improving blood circulation and increasing blood flow velocity, such as massage and thermotherapy, have been proposed. However, these means have the problem that the user needs to interrupt the work to perform massage, thermotherapy, etc., lacking convenience.

Summary of the Invention

Problems to be Solved by the Invention

[0005] In view of this, an object of the present invention is to provide a radio wave generating device that can promote the blood flow velocity of the ophthalmic artery and the central retinal artery by radio waves.

Means for Solving the Problems

[0006] To achieve the above objective, the present invention provides a radio wave generator for promoting blood flow velocity in the ophthalmic artery and the central retinal artery. The device comprises a plurality of radio wave generating circuits and a control module, the plurality of radio wave generating circuits including a first radio wave generating circuit and a second radio wave generating circuit.

[0007] The first radio wave generating circuit is connected to a first antenna, activated by control, and when activated, generates a first radio wave and transmits it through the first antenna, the first radio wave having a fundamental wave of a first frequency and a plurality of first harmonics corresponding to the fundamental wave of the first frequency, the fundamental wave of the first frequency being at least 10 MHz.

[0008] The second radio wave generation circuit is connected to the second antenna and activated by control. Upon activation, it generates a second radio wave having a second frequency fundamental wave and multiple second harmonics corresponding to that fundamental wave, and transmits it via the second antenna. Here, the second frequency fundamental wave is 10 times or more the frequency of the first frequency fundamental wave. The second radio wave generation circuit is connected to a second antenna, activated by control, and when activated, generates a second radio wave and transmits it through the second antenna, the second radio wave having a second frequency fundamental wave and a plurality of second harmonics corresponding to the second frequency fundamental wave, the second frequency fundamental wave being 10 times or more the frequency of the first frequency fundamental wave.

[0009] The control module is electrically connected to the plurality of radio wave generating circuits and controls the activation of the first radio wave generating circuit and the second radio wave generating circuit to generate the first radio wave and the second radio wave.

[0010] According to the present invention, by having a radio wave emitted from a generator that simultaneously possesses a first frequency fundamental wave, multiple first harmonics, a second frequency fundamental wave, and multiple second harmonics, a technical effect is obtained that increases the blood flow velocity of the ophthalmic artery and the central retinal artery. Users can promote blood flow velocity with radio waves without interrupting their work. [Brief explanation of the drawing]

[0011] [Figure 1] A system block diagram of a wireless radio wave generator according to the first embodiment of the present invention. [Figure 2] Circuit diagram of a first radio wave generation circuit according to a first embodiment of the present invention. [Figure 3] A circuit diagram of a second radio wave generation circuit according to the first embodiment of the present invention. [Figure 4] A diagram showing a portion of the measurement results obtained by a spectrum analyzer of a first radio wave according to a first embodiment of the present invention. [Figure 5] A comparative diagram showing the effect of a wireless radio wave generator according to the first embodiment of the present invention on the systolic blood flow velocity of the ophthalmic artery of a subject. [Figure 6] A comparative diagram showing the effect of a wireless radio wave generator according to the first embodiment of the present invention on the systolic blood flow velocity of the central retinal artery of a subject. [Figure 7] A circuit diagram of a first radio wave generation circuit according to a second embodiment of the present invention. [Figure 8] Circuit diagram of a second radio wave generation circuit according to a second embodiment of the present invention. [Figure 9] External view of a radio wave generator according to the third embodiment of the present invention. [Explanation of Symbols]

[0012] 1, 3: Radio wave generator 100: Wireless radio wave generation circuit 10, 10a: First radio wave generation circuit 102: First power input terminal 12: First crystal oscillator 14: First Amplifier Circuit 16: Second Amplifier Circuit 20, 20a: Second radio wave generation circuit 202: Second power input terminal 22: Second crystal oscillator 24: First Amplifier Circuit 26: Second Amplifier Circuit 30: First Antenna 32: Second antenna 40: Control module 42: Controller 44: Power supply circuit 442: Power output terminal 46: Switch element 462: First terminal 464: Second terminal 466: Control terminal 50: Power supply 52: Start switch 60: Housing C1a, C1b: First capacitor C2a, C2b: Second capacitor Cf1, Cf2: Filter capacitor G, GND: Ground terminal L1a, L1b: First inductor L2a, L2b: Second inductor OE: Output enable terminal OUT: Output terminal P1: Overvoltage protection element P2: Surge protection element Q1a, Q1b: First transistor Q2a, Q2b: Second transistor R: Resistor R1, R2: Voltage level adjustment resistor RL: Current limiting resistor V+: Operating voltage VCC: Power supply terminal

Best Mode for Carrying Out the Invention

[0013] To more clearly explain the present invention, preferred embodiments are given below and described in detail with reference to the drawings. As shown in FIGS. 1 to 3, a radio wave generating device 1 according to a first preferred embodiment of the present invention generates radio waves for promoting the blood flow velocity of the ophthalmic artery and the central retinal artery, and includes a plurality of radio wave generating circuits 100 and a control module 40.

[0014] In this embodiment, the plurality of radio wave generation circuits 100 include at least a first radio wave generation circuit 10 and a second radio wave generation circuit 20.

[0015] The first radio wave generation circuit 10 is connected to the first antenna 30 and is started or stopped by control. When the first radio wave generation circuit 10 is started, it generates a first radio wave and transmits it via the first antenna 30. The first radio wave has a fundamental wave of a first frequency (first harmonic) and a plurality of first harmonics (i.e., higher harmonics) corresponding to the fundamental wave of the first frequency. When the first radio wave generation circuit 10 is stopped by control, the generation of the first radio wave also stops. Each of the plurality of first harmonics is N times the first frequency (N is an integer of 2 or more). The fundamental wave of the first frequency is at least 10 MHz, and preferably in the range of 10 MHz to 70 MHz.

[0016] The fundamental frequency of the first frequency is 36 MHz. That is, the plurality of first harmonics (higher-order harmonics) include at least up to the 4th harmonic, which are 72 MHz, 108 MHz, and 144 MHz, respectively. As shown in Figure 4, the measurement results by the spectrum analyzer showed that the intensity decreased with increasing harmonics, and the intensities of the frequency peaks at 36 MHz, 72 MHz, 108 MHz, and 144 MHz were -6.23 dBm, -24.85 dBm, -34.56 dBm, and -37.18 dBm, respectively. Preferably, the higher-order harmonics include up to the 10th harmonic, and more preferably up to the 12th harmonic, and in this embodiment, the frequency of the 12th harmonic is 432 MHz.

[0017] The second radio wave generation circuit 20 is connected to the second antenna 32 and is activated or deactivated by control. When the second radio wave generation circuit 20 is activated, it generates a second radio wave and transmits it via the second antenna 32. The second radio wave has a fundamental wave (first harmonic) of a second frequency and a plurality of second harmonics (higher harmonics) corresponding to the fundamental wave. Each of the plurality of second harmonics is N times the second frequency (N is an integer of 2 or more). The fundamental wave of the second frequency is at least 10 times the fundamental wave of the first frequency, and preferably in the range of 10 to 13 times.

[0018] In this embodiment, the fundamental frequency of the second frequency is 433 MHz. That is, the plurality of second harmonics (higher harmonics) include at least up to the 4th harmonic, which are 866 MHz, 1299 MHz, and 1732 MHz, respectively. Preferably, they include up to the 10th harmonic, and more preferably up to the 12th harmonic. The fundamental frequency and second harmonics of the second radio wave are intended to compensate for first harmonic components that are absent or have low intensity in the first radio wave. In particular, in this embodiment, the fundamental frequency of the second frequency is 433 MHz, which is approximately 12.03 times the fundamental frequency of the first frequency (36 MHz) and is close to the frequency of the 12th harmonic (432 MHz). Therefore, the intensity of the 432 MHz component can be compensated for.

[0019] Unlike the fundamental frequency of the first frequency, in this embodiment, the fundamental frequency of the second frequency is greater than that of the first frequency. Furthermore, the frequency peak of the fundamental frequency of the second frequency encompasses the range of one frequency peak of the plurality of first harmonics in the frequency domain. That is, the frequency peak of the fundamental frequency of the second frequency overlaps with some of the frequency peaks of the plurality of first harmonics. Preferably, the full width at half maximum (FWHM) range of the fundamental frequency of the second frequency covers the range of one frequency peak of the plurality of first harmonics. For example, if the fundamental frequency of the second frequency is 433 MHz, the FWHM range in the frequency domain includes the peak range of the 12th harmonic (432 MHz) at 36 MHz, and has the effect of complementing the intensity of the 432 MHz component.

[0020] The control module 40 is electrically connected to the first radio wave generation circuit 10 and the second radio wave generation circuit 20. The control module 40 is electrically connected to a power supply 50, from which it receives power. The power supply 50 may be a battery (e.g., a rechargeable battery) or an external power supply. The control module 40 controls the starting and stopping of the first radio wave generation circuit 10 and the second radio wave generation circuit 20. When the control module 40 starts the first radio wave generation circuit 10 and the second radio wave generation circuit 20, the first radio wave and the second radio wave are transmitted from the first antenna 30 and the second antenna 32, respectively. Preferably, the control module 40 is configured to start the first radio wave generation circuit 10 and the second radio wave generation circuit 20 simultaneously, and to generate both radio waves simultaneously. As a result, the radio waves radiated from the radio wave generator 1 include both the first radio wave and the second radio wave simultaneously. In other words, the radio wave simultaneously includes the fundamental wave of the first frequency, the plurality of first harmonics, the fundamental wave of the second frequency, and the plurality of second harmonics.

[0021] In this embodiment, the first radio wave generation circuit 10 has a first power input terminal 102, and the second radio wave generation circuit 20 has a second power input terminal 202. An operating voltage V+ is input to the first power input terminal 102 and the second power input terminal 202 so that the first radio wave generation circuit 10 and the second radio wave generation circuit 20 are activated.

[0022] To supply the operating voltage V+ to the first radio wave generation circuit 10 and the second radio wave generation circuit 20, the control module 40 of this embodiment includes a controller 42, a power supply circuit 44, and a switch element 46. The controller 42 is, for example, a microcontroller, and together with the power supply circuit 44, is electrically connected to the power supply 50 and receives power from the power supply 50. The power supply circuit 44 is a circuit for converting the voltage of the power supply 50 to the operating voltage V+ and has a power output terminal 442. The power supply circuit 44 outputs the operating voltage V+ from the power output terminal 442. In this embodiment, the power supply circuit 44 is a boost circuit.

[0023] The switch element 46 has a first terminal 462, a second terminal 464, and a control terminal 466, and is configured as a transistor, such as a MOSFET or BJT. Taking an n-channel MOSFET as an example, the first terminal 462 is the drain, the second terminal 464 is the source, and the control terminal 466 is the gate. The control terminal 466 receives a control signal and causes conduction between the first terminal 462 and the second terminal 464. For example, when the control signal is at a high voltage level, it becomes conductive, and when the control terminal 466 receives a low voltage level control signal, it causes the connection between the first terminal 462 and the second terminal 464 to be blocked. The first terminal 462 of the switch element 46 is electrically connected to the power output terminal 442 of the power supply circuit 44, and the second terminal 464 is electrically connected to the first power input terminal 102 of the first radio wave generation circuit 10 and the second power input terminal 202 of the second radio wave generation circuit 20. Furthermore, the control terminal 466 of the switch element 46 is electrically connected to the controller 42.

[0024] The controller 42 outputs the control signal to the control terminal 466 of the switch element 46, and by making the first terminal 462 and the second terminal 464 of the switch element 46 conductive, it supplies the operating voltage V+ output from the power output terminal 442 to the first power input terminal 102 and the second power input terminal 202, thereby simultaneously activating the first radio wave generation circuit 10 and the second radio wave generation circuit 20.

[0025] In this embodiment, the controller 42 is selectively electrically connected to the activation switch 52, which generates an activation signal based on user operation, and the controller 42 outputs a control signal based on the activation signal. For example, an activation signal is generated when the user presses and holds the activation switch 52 for 0.5 seconds, and a stop signal is generated when the user presses and holds it again for another 0.5 seconds. When the controller 42 receives the stop signal, it stops outputting the control signal to the control terminal 466 of the switch element 46, blocks the connection between the first terminal 462 and the second terminal 464 of the switch element 46, and stops the operation of the first and second radio wave generation circuits 10 and 20.

[0026] Referring to Figure 2, the first radio wave generation circuit 10 includes a crystal oscillator (hereinafter referred to as the first crystal oscillator 12), a first amplifier circuit 14, and a second amplifier circuit 16. The first crystal oscillator 12 is an active oscillator. The first crystal oscillator 12, the first amplifier circuit 14, and the second amplifier circuit 16 are electrically connected to the first power input terminal 102 and operate in response to the operating voltage V+.

[0027] The first crystal oscillator 12 has an output terminal OUT and generates an electrical signal having a fundamental wave of a first frequency and outputs it via the output terminal OUT. The first crystal oscillator 12 also has a power terminal VCC, a ground terminal GND, and an output enable terminal OE, the ground terminal GND is connected to the ground terminal G, and the output enable terminal OE is left unconnected. The first amplifier circuit 14 is electrically connected to the first crystal oscillator 12 and resonates and amplifies the electrical signal having a fundamental wave of a first frequency to output a resonant signal. The resonant signal includes the fundamental wave of the first frequency and the corresponding plurality of first harmonics. The second amplifier circuit 16 is electrically connected to the first amplifier circuit 14 and the first antenna 30 and further amplifies and / or re-resonates the resonant signal to generate the first radio wave and transmit it via the first antenna 30.

[0028] More specifically, the first amplifier circuit 14 includes a first inductor L1a, a first capacitor C1a, and a first transistor Q1a. The first terminal of the first inductor L1a is electrically connected to the first power input terminal 102. In this embodiment, the first terminal of the first inductor L1a is connected to the first power input terminal 102 via a current limiting resistor RL, but in practice, the current limiting resistor RL can be omitted. The second terminal of the first inductor L1a is connected to the first terminal of the first capacitor C1a and the power supply terminal VCC of the first crystal oscillator 12. The first transistor Q1a has a first terminal, a second terminal, and a third terminal. In this embodiment, a BJT is used as an example, with the first terminal being the collector, the second terminal being the emitter, and the third terminal being the base, but it is not limited to this, and the first transistor Q1a can also be configured as a MOSFET. The first terminal of the first transistor Q1a is electrically connected to the second terminal of the first inductor L1a and the first terminal of the first capacitor C1a, and the second terminal is connected to the ground terminal G. The third terminal is connected to the output terminal OUT of the first crystal oscillator 12 and is electrically connected to the first power input terminal 102 via a resistor R, or to the first power input terminal 102 via the resistor R and the current limiting resistor RL. The first amplification circuit 14 amplifies the electrical signal of the fundamental wave of the first frequency with the first transistor Q1a, generates resonance with the first inductor L1a and the first capacitor C1a, and generates a resonant signal.

[0029] The second amplifier circuit 16 includes a second inductor L2a, a second capacitor C2a, and a second transistor Q2a. The first terminal of the second inductor L2a is electrically connected to the first power input terminal 102, and the second terminal is electrically connected to the first terminal of the second capacitor C2a. The second transistor Q2a has a first terminal, a second terminal, and a third terminal. In this embodiment, a BJT is used as an example, with the first terminal being the collector, the second terminal being the emitter, and the third terminal being the base, but it is not limited to this and may be configured as a MOSFET. The first terminal of the second transistor Q2a is electrically connected to the second terminal of the second inductor L2a and the first terminal of the second capacitor C2a, the second terminal is connected to the ground terminal G, and the third terminal is connected to the second terminal of the first capacitor C1a. The second terminal of the second capacitor C2a is electrically connected to the first antenna 30. The second amplification circuit 16 amplifies the resonant signal with the second transistor Q2a, generates resonance with the second inductor L2a and the second capacitor C2a, outputs the first radio wave, and transmits it via the first antenna 30.

[0030] Optionally, the first and second terminals of the first capacitor C1a are connected to filter capacitors Cf1 and Cf2, respectively, to remove noise. The first radio wave generation circuit 10 may also include an overvoltage protection element P1 connected between the first terminal of the second transistor Q2a and the ground terminal G. The overvoltage protection element P1 forms a discharge path when the voltage at the first terminal of the second transistor Q2a exceeds a predetermined voltage. The overvoltage protection element P1 is, for example, a bidirectional or unidirectional instantaneous voltage suppression diode (TVS diode) and functions as electrostatic discharge protection. Furthermore, the first radio wave generation circuit 10 may also include a surge protection element P2 connected between the second terminal of the second capacitor C2a and the ground terminal G. The surge protection element P2 forms a discharge path when a surge occurs in the second antenna 32. The surge protection element P2 is, for example, a gas discharge tube (GDT) and functions as surge protection.

[0031] Referring to Figure 3, the second radio wave generation circuit 20 has substantially the same configuration as the first radio wave generation circuit 10 and includes a crystal oscillator (hereinafter referred to as the second crystal oscillator 22), a first amplifier circuit 24, and a second amplifier circuit 26. The second crystal oscillator 22 is an active oscillator. The second crystal oscillator 22, the first amplifier circuit 24, and the second amplifier circuit 26 are electrically connected to the second power input terminal 202 and operate in response to an operating voltage V+. The second crystal oscillator 22 has an output terminal OUT and generates an electrical signal having the fundamental wave of the second frequency, which is output from the output terminal OUT.

[0032] The first amplifier circuit 24 is electrically connected to the second crystal oscillator 22 and resonates and amplifies an electrical signal having the second frequency fundamental wave, outputting a resonant signal. The resonant signal includes the second frequency fundamental wave and a plurality of second harmonics corresponding to the second frequency fundamental wave. The second amplifier circuit 26 is electrically connected to the first amplifier circuit 24 and the second antenna 32 and further amplifies and / or re-resonates the resonant signal to generate the second radio wave, which is transmitted via the second antenna 32.

[0033] More specifically, the first amplifier circuit 24 includes a first inductor L1b, a first capacitor C1b, and a first transistor Q1b. The first amplifier circuit 24 has substantially the same configuration as the first amplifier circuit 14 of the first radio wave generation circuit 10, but the differences are as follows. That is, in this embodiment, the first terminal of the first transistor Q1b is electrically connected to the second terminal of the first inductor L1b and the output terminal OUT of the second crystal oscillator 22. The output enable terminal OE of the second crystal oscillator 22 is connected to the third terminal of the first transistor Q1b and a resistor R, and the power supply terminal VCC is connected to the ground terminal GND. The connections of other elements in the first amplifier circuit 24 of the second radio wave generation circuit 20 are the same as those in the first amplifier circuit 14 of the first radio wave generation circuit 10, and a redundant explanation is omitted here. In one embodiment, the second crystal oscillator 22 may also adopt the same connection configuration as the first crystal oscillator 12.

[0034] The first amplification circuit 24 amplifies the fundamental wave signal of the second frequency using the first transistor Q1b, generates resonance using the first inductor L1b and the first capacitor C1b, and outputs the resonant signal.

[0035] The second amplification circuit 26 of the second radio wave generation circuit 20 includes a second inductor L2b, a second capacitor C2b, and a second transistor Q2b. The connection relationships of these elements are substantially the same as those of the second amplification circuit 16 of the first radio wave generation circuit 10, the only difference being that the antenna connected to the second terminal of the second capacitor C2b is the second antenna 32, but a redundant explanation will be omitted. The second amplification circuit 26 amplifies the resonant signal with the second transistor Q2b, generates resonance with the second inductor L2b and the second capacitor C2b, outputs the second radio wave, and transmits it via the second antenna 32.

[0036] The second radio wave generation circuit 20 may also be equipped with filter capacitors Cf1 and Cf2, an overvoltage protection element P1, and a surge protection element P2, similar to the first radio wave generation circuit 10.

[0037] Since both the first and second radio wave generation circuits 10 and 20 employ a two-stage amplification configuration, the intensity of the fundamental wave having the first frequency and the plurality of first harmonics in the first radio wave can be increased, and the intensity of the fundamental wave having the second frequency and the plurality of second harmonics in the second radio wave can be improved.

[0038] Therefore, the radio waves emitted from the radio wave generator of the present invention simultaneously have a fundamental wave of the first frequency, a plurality of first harmonics, a fundamental wave of the second frequency, and a plurality of second harmonics, and have the technical effect of promoting blood flow velocity in the ophthalmic artery and the central retinal artery.

[0039] Figure 5 is a comparative diagram showing the effect of the radio wave generator 1 of this embodiment on the subject's ophthalmic artery systolic blood flow velocity (OA-PSV), and Figure 6 is a comparative diagram showing the effect of the radio wave generator 1 of this embodiment on the subject's central retinal artery systolic blood flow velocity (CRA-PSV). The subjects' ophthalmic artery systolic blood flow velocity and central retinal artery systolic blood flow velocity were measured using the Philips EPIQ Elite 9.0 ultrasound diagnostic device.

[0040] The control group consisted of 21 subjects, and the experimental group consisted of 22 subjects. In Figures 5 and 6, Condition 1 for the control group was the systolic blood flow velocity of the ophthalmic artery and central retinal artery measured after each subject rested for 30 minutes without using a smartphone. Condition 2 was the systolic blood flow velocity of the ophthalmic artery and central retinal artery measured after each subject watched videos on their smartphone for 45 minutes. Condition 3 was the systolic blood flow velocity of the ophthalmic artery and central retinal artery measured after continuing to watch videos on their smartphone for another 45 minutes.

[0041] In Figures 5 and 6, Condition 1 of the experimental group is the systolic blood flow velocity of the ophthalmic artery and central retinal artery measured after each subject rested for 30 minutes without using a smartphone. Condition 2 is the systolic blood flow velocity of the ophthalmic artery and central retinal artery measured after each subject watched videos on a smartphone for 45 minutes. Condition 3 is the systolic blood flow velocity of the ophthalmic artery and central retinal artery measured after the subject watched videos on a smartphone for another 45 minutes while the radio wave generator 1 was activated near the subject and radio waves were emitted from the device.

[0042] As is clear from Figure 5, in both the control and experimental groups, the average ophthalmic artery systolic blood flow velocity decreased after watching a video on a smartphone for 45 minutes (Condition 2). In the control group, it decreased from 40.02380952 cm / sec to 34.60952381 cm / sec, and in the experimental group, it decreased from 39.07272727 cm / sec to 32.88181818 cm / sec. Subsequently, when subjects in the control group watched a video for another 45 minutes without using the radio wave generator 1 (Condition 3), the average ophthalmic artery systolic blood flow velocity decreased to 32.74285714 cm / sec. On the other hand, in the experimental group, when subjects watched a video for another 45 minutes with the radio wave generator 1 activated (Condition 3), the average ophthalmic artery systolic blood flow velocity increased to 40.77272727 cm / sec, clearly exceeding the average ophthalmic artery systolic blood flow velocity in the control group under Condition 3.

[0043] Furthermore, as is clear from Figure 6, in both the control and experimental groups, the mean central retinal artery systolic blood flow velocity decreased after watching a video on a smartphone for 45 minutes (Condition 2). In the control group, it decreased from 15.20952381 cm / sec to 12.27238095 cm / sec, and in the experimental group, it decreased from 13.68318182 cm / sec to 11.49363636 cm / sec. Subsequently, when subjects in the control group watched a video for another 45 minutes without using the radio wave generator 1 (Condition 3), the mean central retinal artery systolic blood flow velocity decreased to 10.67761905 cm / sec. On the other hand, in the experimental group, when subjects watched videos for an additional 45 minutes with the radio wave generator 1 activated (Condition 3), the average central retinal artery systolic blood flow velocity increased to 14.71818182 cm / sec, which was significantly higher than the average central retinal artery systolic blood flow velocity in the control group under Condition 3.

[0044] From the above results, it has been demonstrated that the wireless radio wave generator 1 of this embodiment has the effect of promoting blood flow velocity in the ophthalmic artery and the central retinal artery. By increasing blood flow velocity, eye fatigue can be reduced or delayed.

[0045] Figures 7 and 8 show a first radio wave generation circuit 10a and a second radio wave generation circuit 20a according to a second preferred embodiment of the present invention. As shown in Figure 7, the first radio wave generation circuit 10a has substantially the same configuration as the first radio wave generation circuit 10 of the first embodiment, but differs in that it further includes a voltage level adjustment resistor R1. One end of the voltage level adjustment resistor R1 is electrically connected to the first terminal of the first inductor L1a, and the other end is electrically connected to the third terminal of the second transistor Q2a. The voltage applied to the voltage level adjustment resistor R1 is used to increase the DC level of the resonant signal, that is, the resistance value of the voltage level adjustment resistor R1 is proportional to the DC level of the resonant signal, and the resistance value is also proportional to the intensity of the fundamental wave of the first frequency and the plurality of first harmonics in the first radio wave.

[0046] The second radio wave generation circuit 20a is substantially the same as the second radio wave generation circuit 20 of the first embodiment and includes a voltage level adjustment resistor R2. The connection configuration of the voltage level adjustment resistor R2 is the same as that of the voltage level adjustment resistor R1 of the first radio wave generation circuit 10a. The voltage applied to the voltage level adjustment resistor R2 is also used to increase the DC level of the resonant signal, that is, the resistance value of the voltage level adjustment resistor R2 is proportional to the DC level of the resonant signal, and the resistance value is also proportional to the intensity of the fundamental wave of the second frequency and the plurality of second harmonics in the second radio wave.

[0047] The voltage level adjustment resistors R1 and R2 may be configured as variable resistors, thereby allowing their resistance values ​​to be adjusted, but they may also be configured as fixed resistors.

[0048] Furthermore, in this embodiment, the filter capacitors Cf1 and Cf2 of the first radio wave generation circuit 10a and the second radio wave generation circuit 20a may be configured as variable capacitors so that the frequency components of the noise to be removed can be adjusted.

[0049] Figure 9 shows a radio wave generator 3 according to a third preferred embodiment of the present invention. This device 3 is configured based on the configuration of the first embodiment and further includes a housing 60. The housing 60 has a width and length of approximately 60 to 70 mm and a thickness of 10 to 20 mm, and is formed to dimensions that are easy for the user to carry. The plurality of radio wave generating circuits 100 and the control module 40 are arranged inside the housing 60, and the power supply 50 can also be housed inside the housing 60. The housing 60 of this embodiment is similarly applicable to the second embodiment.

[0050] As described above, the radio waves generated by the radio wave generator of the present invention have the technical effect of promoting blood flow velocity in the ophthalmic artery and central retinal artery, without requiring direct contact with the human body. Users can promote blood flow velocity by the radio waves emitted from the device simply by carrying the radio wave generator, without interrupting their work.

[0051] The above description is merely a preferred embodiment of the present invention, and any changes, modifications, and substitutions that do not depart from the spirit of the present invention are all included within the technical scope of the present invention.

Claims

1. A radio wave generator for promoting blood flow velocity in the ophthalmic artery and the central retinal artery, It comprises multiple radio wave generating circuits, including a first radio wave generating circuit and a second radio wave generating circuit. The first radio wave generation circuit is connected to a first antenna, activated by control, and when activated, generates a first radio wave and transmits it through the first antenna, the first radio wave having a fundamental wave of a first frequency and a plurality of first harmonics corresponding to the fundamental wave of the first frequency, the fundamental wave of the first frequency being at least 10 MHz, The second radio wave generation circuit is connected to a second antenna, activated by control, and when activated, generates a second radio wave and transmits it through the second antenna, the second radio wave having a second frequency fundamental wave and a plurality of second harmonics corresponding to the second frequency fundamental wave, the second frequency fundamental wave being 10 times or more the frequency of the first frequency fundamental wave. Furthermore, the radio wave generating device includes a control module electrically connected to the plurality of radio wave generating circuits, the control module being configured to control the activation of the first radio wave generating circuit and the second radio wave generating circuit so as to generate the first radio wave and the second radio wave.

2. The radio wave generator according to claim 1, wherein the control module is configured to control the first radio wave generation circuit and the second radio wave generation circuit to start simultaneously in order to simultaneously generate the first radio wave and the second radio wave.

3. The first radio wave generation circuit has a first power input terminal, and the second radio wave generation circuit has a second power input terminal. The first power input terminal and the second power input terminal are used to input an operating voltage to start the first radio wave generation circuit and the second radio wave generation circuit. The control module includes a power supply circuit, a switch element, and a controller, wherein the power supply circuit has a power output terminal and outputs the operating voltage from the power output terminal, the switch element has a first terminal, a second terminal, and a control terminal, the first terminal of the switch element is electrically connected to the power output terminal, the second terminal of the switch element is electrically connected to the first power input terminal of the first radio wave generation circuit and the second power input terminal of the second radio wave generation circuit, and the control terminal of the switch element is electrically connected to the controller. The radio wave generator according to claim 1, wherein the controller is configured to output a control signal to the control terminal of the switch element so as to conduct electricity between the first terminal and the second terminal of the switch element and supply the operating voltage output from the power output terminal to the first power input terminal and the second power input terminal.

4. The controller further comprises an electrically connected activation switch, The radio wave generator according to claim 3, wherein the activation switch generates an activation signal by trigger, and the controller is configured to output the control signal based on the activation signal.

5. The first radio wave generation circuit includes a crystal oscillator, a first amplifier circuit, and a second amplifier circuit that operate in response to the operating voltage. The crystal oscillator generates an electrical signal having a fundamental wave of a first frequency, and the first amplification circuit is electrically connected to the crystal oscillator and resonates and amplifies the electrical signal having a fundamental wave of a first frequency to output a resonant signal, the resonant signal having a fundamental wave of a first frequency and a plurality of first harmonics corresponding to the fundamental wave of a first frequency. The radio wave generator according to claim 3, wherein the second amplification circuit is electrically connected to the first amplification circuit and the first antenna, and is configured to amplify the resonant signal to generate a first radio wave and transmit it via the first antenna.

6. The crystal oscillator has an output terminal that outputs an electrical signal having the fundamental wave of the first frequency, The first amplification circuit includes a first inductor, a first capacitor, and a first transistor, wherein the first terminal of the first inductor is electrically connected to the first power input terminal, the second terminal of the first inductor is electrically connected to the first terminal of the first capacitor, the first transistor has a first terminal, a second terminal, and a third terminal, the first terminal of the first transistor is electrically connected to the second terminal of the first inductor, the second terminal of the first transistor is electrically connected to the ground terminal, and the third terminal of the first transistor is electrically connected to the output terminal of the crystal oscillator and connected to the first power input terminal via a resistor. The second amplification circuit includes a second inductor, a second capacitor, and a second transistor, wherein the first terminal of the second inductor is electrically connected to the first power input terminal, the second terminal of the second inductor is electrically connected to the first terminal of the second capacitor, the second transistor has a first terminal, a second terminal, and a third terminal, the first terminal of the second transistor is electrically connected to the second terminal of the second inductor, the second terminal of the second inductor is electrically connected to the ground terminal, the third terminal of the second inductor is connected to the second terminal of the first capacitor, and the second terminal of the second capacitor is electrically connected to the first antenna. The radio wave generating device according to claim 5, configured as described above.

7. The radio wave generator according to claim 6, wherein the first radio wave generation circuit includes a voltage level adjustment resistor, one end of which is electrically connected to the first terminal of the first inductor and the other end of which is electrically connected to the third terminal of the second transistor, and the resistance value of the voltage level adjustment resistor is configured to be proportional to the DC level of the resonant signal and proportional to the intensity of the fundamental wave of the first frequency and the plurality of first harmonics in the first radio wave.

8. The second radio wave generation circuit comprises a crystal oscillator, a first amplifier circuit, and a second amplifier circuit that operate in response to the operating voltage. The crystal oscillator generates an electrical signal having the second frequency fundamental wave, the first amplifier circuit is electrically connected to the crystal oscillator and resonates and amplifies the electrical signal having the second frequency fundamental wave to output a resonant signal, the resonant signal having the second frequency fundamental wave and a plurality of second harmonics corresponding to the second frequency fundamental wave, The radio wave generator according to claim 3, wherein the second amplification circuit is electrically connected to the first amplification circuit and the second antenna, and is configured to amplify the resonant signal to generate the second radio wave and transmit it via the second antenna.

9. The crystal oscillator has an output terminal that outputs an electrical signal having the fundamental wave of the second frequency, The first amplification circuit includes a first inductor, a first capacitor, and a first transistor, wherein the first terminal of the first inductor is electrically connected to the first power input terminal, the second terminal of the first inductor is electrically connected to the first terminal of the first capacitor, the first transistor has a first terminal, a second terminal, and a third terminal, the first terminal of the first transistor is electrically connected to the second terminal of the first inductor and the output terminal of the crystal oscillator, the second terminal of the first transistor is electrically connected to the ground terminal, and the third terminal of the first transistor is electrically connected to the second power input terminal via a resistor. The radio wave generator according to claim 8, wherein the second amplification circuit includes a second inductor, a second capacitor, and a second transistor, the first terminal of the second inductor being electrically connected to the first power input terminal, the second terminal of the second inductor being electrically connected to the first terminal of the second capacitor, the second transistor having a first terminal, a second terminal, and a third terminal, the first terminal of the second transistor being electrically connected to the second terminal of the second inductor, the second terminal of the second transistor being electrically connected to the ground terminal, the third terminal of the second transistor being electrically connected to the second terminal of the first capacitor, and the second terminal of the second capacitor being electrically connected to the second antenna.

10. The radio wave generator according to claim 9, wherein the second radio wave generation circuit includes a voltage level adjustment resistor, one end of which is electrically connected to the first terminal of the first inductor and the other end of which is electrically connected to the third terminal of the second transistor, and the resistance value of the voltage level adjustment resistor is configured to be proportional to the DC level of the resonant signal and proportional to the intensity of the fundamental wave of the second frequency and the plurality of second harmonics in the second radio wave.

11. The radio wave generator according to claim 6 or claim 9, further comprising an overvoltage protection element electrically connected between the first terminal of the second transistor and the ground terminal, which forms a discharge path when the voltage at the first terminal of the second transistor exceeds a predetermined voltage.

12. The radio wave generator according to claim 6 or claim 9, further comprising a surge protection element electrically connected between the second terminal of the second capacitor and the ground terminal, which forms a discharge path when a surge occurs in the second antenna.

13. The radio wave generator according to claim 1, wherein the frequency range of the peak on the frequency spectrum of the fundamental wave of the second frequency includes the frequency range of the peak on the frequency spectrum of one of the plurality of first harmonics.

14. The radio wave generating device according to claim 1, further comprising a housing having a length in the range of 60 mm to 70 mm, a width in the range of 60 mm to 70 mm, and a thickness in the range of 10 mm to 20 mm, wherein the plurality of radio wave generating circuits and the control module are arranged inside the housing.

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