JPS60210267A - Pulse magnetic field treating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a frequency-variable pulsed magnetic field therapy device that utilizes a pulsed magnetic field.

[Prior art]

In general, many clinical studies have shown that among the pathological syndromes exhibited by humans, there are syndromes that can be improved by applying a magnetic field to a part of the human body.

Conventional magnetic therapy devices that utilize permanent magnets or alternating magnetic fields with large magnetic flux densities have been proposed many times, but such magnetic therapy devices lack immediate therapeutic effects or have no effect. This has caused problems such as the sustainability of the product being impaired.

For these reasons, the present inventors have previously developed a pulsed magnetic field therapy device (Japanese Patent Application No. 58-91529), which has been applied to patient treatment with good results.

This pulsed magnetic field therapy device makes full use of the pulsed magnetic field generated by the fCVIA by energizing an electromagnet with a pulsed current, and generates the pulsed magnetic field at arbitrary intervals by operating a switch, thereby allowing this magnetic field to act on the human body. achieved the therapeutic goal. In this case, the pulse magnetic field is generated at an interval of approximately 2 seconds (approximately 0.5 Hz), and an extremely low frequency is used.

However, in this Yorina Kurusu hot water treatment device,
Since the frequency of the pulsed magnetic field is fixed to some extent,
There was a problem that a pulsed magnetic field of an arbitrary frequency could not be applied to the human body, resulting in a lack of efficiency in therapeutic effects.

[Summary of the invention] The present invention has been made in view of the above circumstances.
The purpose is to provide a variable frequency pulsed magnetic field therapy device that can efficiently produce therapeutic effects by applying a pulsed magnetic field of any frequency to the human body.

In order to achieve this purpose, the Nokuru hot water treatment device of the present invention includes a rectifier circuit that rectifies alternating current from a commercial power source, a switch circuit that connects and disconnects the power supply path, and a switch circuit that turns on the switch circuit. A variable frequency oscillator that is turned off is provided, and the electromagnet is excited based on the rectified output that is intermittent by the switch circuit, so that the frequency of the pulsed magnetic field generated from the electromagnet can be arbitrarily varied. In this case, an oscillator capable of generating a frequency in the range of several Hz to 30 f(z) is used as the oscillator, and the pulse magnetic field of any frequency within that range can be varied.

Here, the reason why the frequency of the pulsed magnetic field is selected from 1 Hz to 30 Hz and the frequency is changed by Qf is as follows. In general, it is known that when a fluctuating magnetic field such as a chiban magnetic field or a pulsed magnetic field is applied to the human body, whether or not the effect appears depends on the frequency of the fluctuating 7ai field applied, and the effect on the human body. The degree of expression is frequency dependent. ing. Although this can be said when generally considered as a phenomenon common to the human body, there are also individual differences in the wavenumber dependence of Ji'lIJ.

Generally 201. (It is said that 7& is also significant in terms of the degree of effect of the frequency z, but it is said that individual differences within the frequency range of the number fiz = -30■i are also observed.However, This is inevitable because we have not yet reached a definitive opinion on this matter.
Therefore, the present inventors focused on the research results of the therapeutic effect using magnetism in 1, and applied a pulsed magnetic field with a variable frequency within the range of several Hz to 30 Hz, with a center frequency of 20 Hz, on the human body. It has been discovered that the therapeutic effect can be achieved most efficiently by Hereinafter, the present invention will be explained in detail using examples.

Embodiment FIG. 1 is a basic circuit configuration diagram of a Kurusu hot water treatment device according to an embodiment of the present invention. In the same number, 1 is 50)
1z'f: 1j60Hz commercial 'aL Ryo, 2 is a transformer that steps down the AC voltage from this commercial power supply 1 to about 30 to 40V, 3 is a silicon that steps down the voltage in the transformer 2 and performs full wave regulation of the AC voltage. A bridge-type full-wave rectifier circuit consisting of diodes, 4 is a non-contact AC relay as a switch circuit that periodically connects and disconnects the AC output of the transformer 2 input to the rectifier circuit 3; ) for several Hz to 30
A variable frequency square wave oscillator 5 whose frequency can be arbitrarily varied in Hz is connected, and its output terminal (secondary side) is connected in series between the secondary side of the transformer 2 and the input terminal of the full-wave rectifier circuit 3. It is connected to the. This non-contact AC relay 4 is a solid state relay with zero voltage switching characteristics, which is composed of, for example, a light emitting element, a light receiving element, a non-zero voltage spark suppression circuit, and a triac. The input rectangular wave signal is converted into an optical 1d signal by a light emitting element. The light-receiving element converts it into the original rectangular wave signal, and a non-zero voltage point a suppression circuit triggers near zero voltage of the AC R waveform supplied to the triac to turn on the triac. In addition, 6 is a detection capacitor connected in parallel between the output terminals of the bridge type full-wave conditioning circuit 3, and 7 is a shielded electromagnet as its load. ! i-style circuit, 3! The intermittent full-wave rectified output output from J iH is smoothed by the capacitor 6, and after fLL, its b
It is designed to generate pulsed magnetic field sound according to the frequency of the original rectangular wave when excited by a force current (l).

Next, the operation of the above embodiment will be explained with reference to FIGS. 2 to 5. Here, the frequency of commercial power supply 1 is 50
An example will be shown when the frequency of the rectangular wave oscillator 5 is 10)(z). When commercial electricity 1 is input,
The AC voltage of 50) 1z supplied from this commercial power supply 1 is stepped down to about 30 to 40V by the transformer 2, and the AC voltage is interrupted by the non-contact AC relay 4 and then transferred to the full-wave rectifier circuit 3.
is man-powered. At this time, the non-contact father IIJ relay 4
has the characteristic of zero-voltage switching, so its on and off operations perform switching when the AC voltage becomes zero. Therefore, the full wave rectifier circuit 3
The voltage waveform input to is 0.0 as shown in Figure 2.
5 seconds (Square wave optical oscillator 5 oscillates: +-(l H,
The waveform appears for 1/2 of the time corresponding to the rectangular wave frequency of z) and disappears for the same time (0.05 seconds.In addition, in the voltage waveform in Fig. 2, there is a node (Kn) at the point where the AC voltage is zero.
ot) appears, this is due to the zero voltage switching characteristics of the non-contact AC relay 4.

As a result, the intermittent full-wave rectifier circuit outputted from the full-wave rectifier circuit 3 is 100f(
The waveform is a rectangular wave with the pulsating flow of z as the carrier wave. At this time, as shown in Figure 3, the time during which the 100 Hz pulsating flow appears is 0.06 seconds (6 100 Hz pulse waves) or 0.05 seconds (5 100 Hz pulse waves). If , chew. It's a shame, sometimes it's 0.05 seconds for both sides. The reason why the VC time becomes somewhat unstable is due to the zero voltage switching characteristics of the non-contact AC relay 4. Other reasons may include the following.

However, there is also some variation in the wave number of the spinal cord 1, centered on the 1st point of the rectangular wave oscillator 5V frequency Q, and the frequencies of the iL and others are as follows: ! 4W is thought to be similar to the phenomenon described above.

Then, when the full-wave rectifier circuit 3 outputs an intermittent IJJ force, as shown in Figure 3, which passes through the entire detection capacitor 6 and is input to both ends of the electromagnet 1, this The intermittent full-wave rectified wave is smoothed by the capacitor 6, and a voltage waveform as shown in FIG. 4 is supplied to both ends of the electromagnet I. At this time, the time during which the pulse wave portion appears in the voltage waveform V in FIG. 4 is 0066 seconds, and the time for one cycle is approximately 0.1 seconds.

Therefore, the time the pulse appears is longer than the time it does not appear. This phenomenon occurs 62 because of the characteristics of the non-contact crossing series relay 4 and because the capacitor 6 has a relatively large capacity (9,400 μF). Also, as shown in Figure 4,
At the top of the pulse wave, a certain Mf of 1001-ratio is not sufficiently removed and remains, resulting in a sawtooth wave.

The reason for this is that since the impedance of the 'fji magnet 7 is set to a low value fc, it cannot be sufficiently removed even if a large capacitance capacitor is used.

By the way, 1001-17. Content 6 is the only force method that almost completely eliminates the interaction of content 6. 4! , it is sufficient to insert a resistor or a choke coil in series between the magnets 7. However, due to the following two reasons,
This has not been done.

(5) In the pulse hot water treatment device of this embodiment, the electromagnet 1
is built into a treatment bed, and five units are connected in parallel to apply a pulsed magnetic field from the neck to the feet of the human body. In other words, the human body is showered with a pulsed magnetic field. Therefore, usually 4
At 0V, the power is about 20A, or about 800W. Even if a resistor or choke coil is used, it requires a relatively large amount of power, the equipment is large, and it is necessary to manage power and heat generation, making it complicated. Become.

Another reason is that even if the 100 Hz interaction cannot be completely removed, this will in no way reduce the therapeutic effect. In the above-mentioned pulse hot water treatment device of the previous application, the result was that the fluctuation of the magnetic field accompanying the electric vibration was extremely effective. Therefore, it is considered that it would be better to have a 100 Hz (1) sawtooth wave even in the device constructed in Example Ah.

Figure 5 is a waveform diagram when the fluctuations in the voltage supplied to both ends of the electromagnet 1 and the fluctuations in the magnetic field are simultaneously recorded.
a) The same voltage waveform as in Fig. 4 above is shown in Fig. 4 (b).
shows the variation of the magnetic field. To record the fluctuations in the magnetic field, place a coil (40 turns, area 25 crn2) on one pole of the U-shaped electromagnet, record the fluctuations in the voltage at both ends of the coil, and record the fluctuations in the magnetic field. The fluctuation of From the waveform in Figure 5, it can be seen that the fluctuation of the magnetic field is in the form of a distorted waveform of the radio wave flowing through the electromagnet. However, it is also clear that this form is a pulsed magnetic field.

In this way, according to the above embodiment, the current flowing through the opening defroster 1 is interrupted by the non-contact father υ1c relay 4, and the current is connected to the electric bridge type full-wave rectifier circuit 3 and the capacitor. After detection, by supplying it to the electromagnet t, the electromagnet 7 can generate a pulsed magnetic field as shown in FIG. 5(b). By varying the rectangular wave frequency of the rectangular wave generator 5 input to the rectangular wave generator 4 in the range of several Hz to 30 Hz, a pulsed magnetic field of any frequency within that range can be applied to the human body.

Note that when varying the frequency of the rectangular wave oscillator 5, when the frequency of the rectangular wave is fDIz) and the commercial frequency of the commercial power source 1 is F (Hz), the frequency ratio F/f is an integer. In such a case, the time when the pulse current is on and the time when it is off are in a comparatively equal relationship and are repeated repeatedly. However, if 1'/f is not an integer, a kind of beat will occur. Therefore, a pulsed magnetic field is also generated in response to this beat. However, this does not reduce the therapeutic effect.

Next, treatment methods and effects will be explained. When using the pulsed magnetic field therapy device according to the present invention, a set of five electromagnets is installed in the treatment bed, and the pulsed magnetic field is applied to the body parts from the neck to the feet to perform treatment. became. Of course, when acting locally, it is also possible to use 1 group or 2.3 groups.

The symptoms targeted for treatment are mainly pain in the back and lumbar region, rheumatic diseases, etc., but good therapeutic effects may not be achieved [7].

The treatment time is 10 to 20 minutes each time. The frequency is 5
The frequencies range from Hz to 30 Hz, and depending on individual differences, the frequency that the patient feels most comfortable with is selected over the course of several treatments. i based on my experience in my current position 1
Many patients seem to feel comfortable when a pulsed magnetic field with a frequency of around tlOH2 (711z to 15Hz) is applied.

The above-mentioned/recently applied pulsed magnetic field therapy device (which generates a pulsed rlFi field approximately once every 2 seconds) can treat relatively strong pain16
However, the variable frequency pulsed magnetic field treatment device according to the present invention has a remarkable therapeutic effect on O1, which has become chronic. It has even been recognized that it is effective in tubs.

All treatments were performed using the device of the present invention in which five γ(I magnets were incorporated into the treatment bed), and no adverse symptoms of the human body Vζ, which may be considered side effects, were observed.

In the above-described embodiment, a platform is shown in which the intermittent full-wave rectified output output from the full-wave rectifier circuit is smoothed by a capacitor. However, the present invention is not limited to this, and Is it possible to directly excite an electromagnet using full-wave rectified output, or use AC from a commercial power source? l: It is an intermittent switch circuit, and various types of relays other than the non-contact current relay of the above embodiment can be used.

(Effects of the Invention) As explained above, if the pulsed magnet of the present invention is used in a hot spring, the frequency i and number of the pulsed magnetic field can be expressed as klz~3゜ll.
Since it can be arbitrarily varied over the range of z, it becomes possible to select the most effective one for the human body to be treated, and thus the most efficient treatment effect can be achieved. I can smell the monkey effect.

[Brief explanation of the drawing]

Figure 1 d is a basic circuit diagram of the pulsed magnetic field therapy device according to this embodiment, Figures 2 to 4 are voltage waveform diagrams at various parts in Figure 1, and Figure 5 is FIG. 2 is a waveform diagram showing the 4tj relationship between the fluctuation of the dragon H- at both ends of the electromagnet in FIG. 1 and the fluctuation of the magnetic field. 1...@Commercial power =, 2...so transformer, 3...-full wave rectifier circuit, 4...non-contact current relay (switch circuit), 5...variable frequency square wave Oscillator, 6... capacitor for threat/detection, 1... electromagnet. Patent bleeding person Kyo Nakagawa - Hiroshi Ishidan -E Tadashi Oten Ming Dynasty J9 villager Yamakawa several times ((・0・2 people) Figure 1 - Figure 5 Figure 2 Figure 31"1 41ヅ1 u, uls pi C

Claims (2)

[Claims] (1) Commercial power supply and 9. a rectifier circuit that rectifies the accent; a switch circuit that periodically switches the connection between the music line and the cram school piL circuit; and a variable frequency oscillator that drives the switch circuit on and off;
and an electromagnet that is excited based on the intermittent rectified output output from the rectifier circuit, and the frequency of the pulsed magnetic field generated by the rectifier magnet force is arbitrarily varied according to the frequency of the oscillator. A pulsed magnetic field therapy device characterized by: (2) The pulsed magnetic field therapy device according to claim 1, wherein the oscillator uses an oscillator whose frequency range is variable from several Hz to 30 Hz.