THE FIELD OF ENGINEERING THIS INVENTION BELONGS TO

The invention generally belongs to the field of electrotherapy, i.e. to the field of magnetotherapy. According to the International Patent Classification, the subject matter of the invention can be designated by the basic classification symbol A61N2/00, where all the inventions in the field of magnetotherapy are classified. Likewise, the invention may be further designated by the classification symbol A61N2/04, which denotes the inventions where the use of low-frequency or pulsating circuits is envisaged. The invention can also be marked with the classification symbol H03K3/00, used for marking the monostable, bistable or multistable circuits for the generation of electrical impulses.

TECHNICAL ISSUES

The technical issues encountered before the invention had been related to the manner of construction of an electromagnetic stimulator which will provide a precise and stable electromagnetic wave frequency of 7.83 Hz, which modulates a light-emitting diode (LED) with a wavelength of 624 nm, in order that general health in a human or an animal body is improved. In addition to this, the stimulator needed to comprise connectors, chargers, batteries, power supply, CPUs (central processing unit), oscillators, drivers and LEDs in their specific connection.

At the same time, it was desirable for the electromagnetic stimulator to be small in size, portable and powered by a rechargeable battery.

BACKGROUND ART

The application of magnetotherapy in physical medicine is not unknown, and nowadays there are a large number of various devices used for this purpose. A pulsed magnetic field is mostly used in treatments where devices that induce a magnetic field operate at very low frequencies from 1 Hz to 50 Hz. The magnetic field has a beneficial effect on the stimulation of osteoporosis and leads to the proliferation of bone cartilage and connective tissue, improves blood flow, causes dilation of arterioles and capillaries, improves metabolism and oxygenation of tissues.

For instance, the ELMAG-MK75 device, which uses a low-frequency pulsating magnetic field of different frequencies and creates an induction magnetic field, is well-known for its therapeutic effects.

During the review of patent documentation about the corresponding classification symbols, and professional literature in this field, both in Serbia and abroad, numerous documents relating to the broader field in which the classified invention has been described in the patent application have been found.

One of the well-known examples is the device for pain relief and the healing process acceleration with help of pulsed currents. It is described in the domestic patent register of small patents under No. 1003U (MP-2008/0009). The device consists of stable and monostable multivibrators that are connected in series and that periodically generate a pulse signal via the output transistors on the secondary coil of the output transformer to which the output plate electrodes are connected.

In the the domestic patent register there is a No. 1034U (MP-2008/0101), which represents a device for pain reduction and the healing process acceleration with help of low-frequency currents. The device has four independent channels and can also be applied simultaneously for the therapy of several patients. Each channel contains a microcontroller that monitors the clock generator. The apparatus used in magnetotherapy and described under No. 49765B in the patent register published in Serbia contains at least one device for magnetic field generation with a static and alternating field component on the tissue that needs to be treated.

The British patent register with the classification GB 2417688A describes a device for the treatment of neurological and muscular pain with neurostimulation. The device consists of a pair of electrodes, which are placed superficially on the skin so that a current of 0.2 to 12 mA and a frequency of 1 to 50 Hz are applied to the injury. This device cannot be battery-powered.

The device described in the American patent register under No. US 2007/0106342A transfers electricity to a patient's tissue to neutralise pain. This non-battery powered device consists of a variable body generator, a circuit for tissue impedance measurement and at least one electrode.

None of the abovementioned devices nor any other devices found in the reviewed documentation describe a simple and inexpensive device for commercial production, which could effectively perform the treatment of pain reduction on/in the injured part without the need for professional supervision.

THE ESSENCE OF THE INVENTION

The essence of the electromagnetic stimulator described in this application is to create an electromagnetic field of constant frequency of 7.83 Hz, which the user will be able to use independently for therapeutic purposes at his or her own will. According to the invention, this electromagnetic stimulator creates a low-frequency pulsating electromagnetic field and thus protects the user from disturbing electromagnetic frequencies, balances the autonomic nervous system, helps full mental potential development, facilitates emotional and mental balance, reduces stress, nervousness and tension, increases concentration and attention, affects good mood, relieves pain in inflammatory processes, strengthens immunity and improves the general condition of the body.

This electromagnetic stimulator consists of a charger, a battery, a power supply, an oscillator, a CPU (central processing unit), a driver and a LED diode, which are interconnected in a unique way.

Not only is the stimulator minute in size and mobile, but it also provides a stable frequency in time and temperature at the same time.

BRIEF DESCRIPTION OF THE DRAWINGS

This electromagnetic stimulator invention is described in detail in the following chapter and represented in the following drafts:

Figure 1 - shows a block diagram - the operation principle

Figure 2 - shows a wiring diagram of the central processing unit (CPU) programming

Figure 3 - shows a wiring diagram of the battery

Figure 4 - shows the entire wiring diagram (i.e. combined CPU programming and battery charging)

DETAILED DESCRIPTION OF THE INVENTION

According to the invention, the electromagnetic stimulator creates a low-frequency pulsating electromagnetic field. Therefore, it is used as an apparatus for improving general health since it protects against disturbing electromagnetic frequencies, balances the autonomic nervous system, helps the full mental potential development, facilitates emotional and mental balance, reduces stress, nervousness and tension, increases concentration and attention effortlessly, affects good mood, relieves pain in inflammatory processes, strengthens immunity and improves the general condition of the body. According to the invention, the basic components of the electromagnetic stimulator are a charger 1, a battery 2, a power supply 3, an oscillator 4, a central processing unit (CPU) U3, a driver 6 and a LED 7. The operation of the electromagnetic stimulator is shown in the block diagram (Figure 1).

Whilst the battery 2 is connected on one side to the charger 1 and on the other to the power supply 3, the central processing unit (CPU) U3 is connected on one side to the oscillator 4, and on the other side to the driver 6, which is connected to the LED diode 7.

The oscillator 4 with a frequency of 4Mhz and a precision of 0.5% induces the central processing unit (CPU) U3, where the signal is processed by a software. After the central processing unit U3 outputs a stable signal with a frequency of 7.83Hz, the signal is forwarded to the driver 6 which provides a stable (constant) current for the LED diode 7, where this current is stable (constant) regardless of the battery voltage 2. Therefore, the electromagnetic wave of the LED diode 7 is constant throughout the operation and does not depend on battery charging 2.

The electromagnetic stimulator has its own charger 1 that regulates the voltage and current with which the battery 2 is charged. The current from the battery 2 is also transmitted to the power supply 3 which regulates the voltage from the battery 2, and provides a stable and constant voltage for the supply 3 regardless of the battery voltage 2.

Connector J1 with five pins has a dual purpose. The first one is that it is used for battery 2 charging whereas the second one is central processing unit U3 programming.

In order that the central processing unit U3 is programmed, jumpers J5, J2, J3 and J4 should be connected beforehand whereas jumpers J6, J7 and J8 should be disconnected (Figures 2, 3 and 4). To charge the battery 2 and operate the electromagnetic stimulator, jumpers J2, J3, J4 and J5 should be disconnected, whereas jumpers J6, J7 and J8 should be connected (Figures 2, 3 and 4). In order for the electromagnetic stimulator to perform its function, it is necessary to enter the programming code in the central processing unit U3. To enter the programming code in the central processing unit U3, it is needed to close the connections with jumpers J2, J3, J4 and J5, and leave the connections on jumpers J6, J7 and J8 open.

The DATA signal is transmitted to the central processing unit U3 pin7 from the connector J1 pin2 via the first jumper J2. As for the CLOCK signal, it is transmitted to the central processing unit U3 pin6 from the connector J1 pin3 via the second jumper J3. When it comes to the programming permission signal, it is transmitted to the central processing unit U3 pin4 from the connector J1 pin4 via the third jumper J4. While programming, a voltage of + 5V is connected to the J1 pinl connector in order to supply the central processing unit U3 pinl.

For the operation of the electromagnetic stimulator, it is necessary to open the connections on jumpers J2, J3, J4 and J5 and leave them open whilst the connections on jumpers J6, J7 and J8 are closed.

A voltage of + 5Y that is connected via the pin connector Jl, from the standard USB port (not shown in the drawings), enters the circuit of the U1 pin4 charging regulator via the fourth jumper J7 and the filter capacitor Cl. The first resistor R2 connected to the charging regulator U1 pin5 is used to regulate the current for battery 2 charging. When the battery 2 is full, the signal lamp Ldl, which is connected to the charging regulator U1 pinl via the second resistor Rl, lights up. The second capacitor C2 is connected to the output of the charging regulator U1 pin3 to filter the output voltage.

The current from the battery 2 enters the stabiliser U2 of pinl voltage via the signal filter capacitor C3. The voltage stabiliser U2 provides a stable voltage of 2.5 V on pin5, regardless of the input voltage ranging from 3 V to 4.2V. At the output of the stabiliser U2 of pin5 voltage, there is a stable voltage of 2.5V (Vcc), which is filtered through the third capacitor C4 and powers the central processing unit U3 via pinl, isolation amplifier U5A and oscillator circuit U5B. The thirteenth resistor R4 facilitates an efficient turning off of the stabilised voltage immediately after the power is put out. After the voltage from the voltage stabiliser U2 induces the field effect (FET) transistor Ql, the FET transistor Q1 conducts current and leads to a voltage drop on the third resistor RIO. The voltage drop on the third resistor RIO is induced by the FET transistor Q2, which then conducts current to the fourth resistor R11 and the fifth resistor R12. On the fifth resistor R12, voltage is proportional to the level of battery 2 voltage; however, although proportional, it is of less value. The fourth capacitor C7 filters this voltage and leads it to central processing unit U3 pin6 via fifth jumper J6, where it is used to measure the charging level of the battery 2. When the battery 2 is low (below 3 V), the electromagnetic stimulator does not work.

By pressing the key Ts, the positive voltage is transmitted as a pulse through the diode D1 via the sixth resistor R7 and the first capacitor C6 to the command for turning on the voltage stabiliser U2 and to the pin5 of the central processing unit U3. Whilst a positive voltage on the pin3 of the voltage stabiliser U2 allows for the U2 voltage stabiliser’s operation, the central processing unit U3 determines if the Ts key has been pressed. The seventh resistor R8 serves to discharge the first capacitor C6, after pressing the Ts key, via the sixth and seventh resistors R7 and R8. If the Ts key is kept pressed for more than 3 seconds, a positive voltage is applied to the central processing unit U3 pin4 via the eighth resistor R9 and the sixth jumper J8, as it is determined that the user wants to turn off the electromagnetic stimulator. On the central processing unit U3, pin5 provides a mass spectrum and turns off the voltage stabiliser U2. The voltage stabiliser U2 at the pin5 output provides a mass spectrum and the whole electromagnetic stabiliser turns down.

The quartz resonator filter K1 having an accuracy of up to 0.5% and a temperature stability of up to 0.2% makes an oscillator circuit with a frequency of 4Mb z in combination with a ninth resistor R18 and an inverting circuit U5B. The inverting circuit U5B pin3 and pin4, the ninth resistor R18 and the quartz resonator filter KI pinl and pin3 are connected parallelly while the isolating circuit U5A pinl and pin6 and the inverting circuit U5B pin3 and pin4 are connected in series. After the oscillations of 4MHz are transmitted to the input of the isolation circuit U5A pinl, there is a stable signal on pin6, which is then introduced into the CPU (central processing unit) U3 pin2. The central processing unit U3 processes the signal that becomes a stable signal of 7.83Hz at the output pin3 and induces the voltage stabiliser U4 via pin3, which following the rhythm of the input signal of 7.83Hz permits a voltage of 2.5V at the output of the stabiliser U4 pin5. The voltage stabiliser U4 provides a voltage of 2.5V with a frequency of 7.83Hz on pin 5, which is then filtered with the capacitor C8. At the same time, the signal diode Ld3 is supplied via the tenth resistor R17, emitting a red wavelength of 624nm modulated with 7.83Hz.

The voltage stabiliser U4 serves to keep the current constant through the signal diode Ld3 regardless of the voltage of the battery 2. The eleventh resistor R15 is used for a quick turn-off of the 2.5V voltage. Battery 2 is connected with water + BAT to pinl driver 6 and the key Ts.

When the battery 2 is discharged, the central processing unit U3 pin7 emits a signal of the low battery 2 and then supplies the signal lamp Ld2 via the twelfth resistor R6, which flashes 5 (five) times per second and eventually turns off.

The electromagnetic stimulator is switched on by Ts key pressing, placed on the inflammatory point, and switched off automatically after 30 (thirty) minutes of operation.

It is recommended to apply the stimulator to the inflammatory point 2 (two) times for 30 (thirty) minutes a day in the initial phase of inflammation by positioning the side that vibrates with a red light towards the skin.

For long-term or rheumatological processes, it is desirable to apply the stimulator 10 (ten) and more times during the day.

The invention is for individual use and, when used correctly, has an unlimited duration.