JPS6266870A - Low frequency treatment device - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a low-frequency treatment device that applies low-frequency pulses to treat an affected part of a living body.

(b) Conventional technology In general, this type of low-frequency treatment device consists of an oscillator that oscillates a low frequency of 1 to 2 Hz, an amplifier that amplifies the low frequency of this oscillator, and a peak value of the output pulse of this amplifier. It is composed of an output adjustment circuit that performs adjustment, and a pair of conductors that contact the living body and apply output pulses of the adjustment circuit to the affected area.

Therefore, apply this pair of conductors to the affected area and apply a voltage of 50 to 160V.
It is designed to apply a low frequency wave, <Rus, to the affected area.

Then, by applying this low frequency pulse to the affected area, tension is applied to the affected area, and as a reflex effect of this tension, the tension in the affected area is released, and this action is repeated to treat the area.

(c) Problems to be solved by the invention In the above-mentioned low frequency treatment device, conventionally, the oscillator is 1,
5b, etc., and the pulse period was fixed as a mechanical characteristic of the oscillator. Therefore, no consideration is given to the physiological phenomena of the body, and even if the device is designed to be freely changeable, the pulse width and period can only be adjusted mechanically.

However, from the perspective of physiological phenomena in the body, blood is pumped out during cardiac systole, which places a load on the entire body, and applying low-frequency pulses during cardiac systole increases tension. become.

Therefore, the degree of relaxation as a reflex effect of tension application is small, and the efficiency is poor.In mechanical oscillation, this cardiac systole often coincides with the time of pulse application, resulting in extremely poor efficiency.

(d) Means and operation for solving the problem The present invention includes a detection means for detecting the cardiac systole, an oscillation means for receiving a detection signal from the detection means and outputting a pulse synchronized with the cardiac systole, a delay means for outputting the output pulse of the oscillation means in correspondence with the heart relaxer, an adjustment means for adjusting the delay time of the delay means, and amplifying the output pulse of the delay means and adjusting it to the pulse to be applied to the affected area. The device is configured to include an application means for outputting pulses, and an application means for applying application pulses from the application means to the affected part of the living body.

Therefore, first, the detection means detects the cardiac systole, and the oscillation means receives this detection signal and outputs a low-frequency pulse synchronized with the cardiac systole, and the delay means adjusts this output pulse to correspond to the heart relaxer. Thereafter, the application means amplifies and adjusts the application pulse, and applies this application pulse to the affected part of the living body, while adjusting the delay time of the delay means by the adjustment means to set the application time.

(e) Example An example of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 1 and 2, reference numeral 1 denotes a low-frequency treatment device that applies low-frequency pulses to the affected area in synchronization with cardiac relaxation for treatment.

This low-frequency treatment device 1 is configured such that an electrical system, which will be described later, is housed in a main body 2, and a cardiac systolic detection means 3 and an applied pulse applying means 4 are linked to the main body 2. Furthermore, this low frequency treatment device 1 includes a first oscillation section 5 that oscillates a free-running pulse, and a second oscillation section 6 that oscillates a synchronous pulse synchronized with the heart relaxer.

The main body 2 is formed into a vertically elongated rectangular body, and is provided with a changeover switch 7 at the lower front, three adjustment volumes 8a, 3b, and 3c on the side, and three indicator lamps 9a, 9b on the front. , 9c are provided. This changeover switch 7 is configured to perform switching control between the first oscillation section 5 and the second oscillation section 6 in addition to ON/OFF control. Further, the first volume 8a is used to adjust the period of the free-running pulse, and the second volume 8a is used to adjust the period of the free-running pulse.
b is for adjusting the output level. The third volume 8c is an adjustment means for a delay circuit, which will be described later, and is used to adjust the timing of pulse application.

Three indicator lamps 9a, 9b, and 9c are also connected to an electrical system, which will be described later, and are adapted to indicate the cardiac systole and the pulse application period.

The detection means 3 optically detects the pulse and derives the cardiac systole, and is constructed by housing a light emitting element 10a and a light receiving element 10b in an earring-shaped case 3a formed in a substantially horseshoe shape. . This case 3a has cable 3b
It is detachably connected to the main body 2 via the jack 3c and the ear A is held therebetween. In addition, the light receiving element 10
b receives light from the light emitting element 10a, converts an optical signal corresponding to the pulse into an electrical signal, and outputs the electrical signal.

The application means 4 consists of a pair of conductors 4a and 4b that are detachably connected to the main body 2 via a cable 4C and a jack 4d, and the conductors 4a and 4b are adhered to the affected part of the living body.
The device is configured to apply low frequency pulses to the affected area.

The electrical system includes the first oscillation section 5 and the second oscillation section 6 described above.
In addition, the first oscillating section 5 is composed of an oscillator having a variable frequency and is connected to the first volume 8a. This first oscillation section 5 is 1 to 2H.
z, and can be freely converted to
It is connected to 1.

The second oscillator 6 includes a pulse wave detection circuit 12 and a waveform shaping circuit 1.
oscillation means 14 consisting of 3, and a delay circuit (delay means) 15
It is composed of. The pulse wave detection circuit 12 receives a detection signal from the light receiving element 10b and outputs a pulse a corresponding to the cardiac systole. The waveform shaping circuit 13 is composed of a Schmitt circuit and a one-shot circuit, and is configured to shape the output pulse a of the pulse wave detection circuit 12 into a rectangular pulse b and output it. This output pulse b
is synchronized with the cardiac systole and indicates the pulse.

The delay circuit 15 converts the output pulse b of the waveform shaping circuit 13 into 4
00m5 delay, and is connected to the application means 11 via the changeover switch 7. The reason for this delay of 400 m5 is that since the output pulse b of the waveform shaping circuit 13 is synchronized with the cardiac systole, it is to be synchronized with the cardiac diastole. That is, normally the average pulse rate is 70 beats per minute.
Therefore, the period of the cardiac systole is 800 m/s, and by delaying it by half, the output pulse is synchronized with the cardiac diastole. Further, this delay circuit 15 is connected to a third volume 8C, which is an adjustment means, and is configured to be variable, and this delay time is freely adjustable based on 400 m5, so that the output time can be set. It has become.

On the other hand, the waveform shaping circuit 13 is connected to the first and second display lamps 9a and 9b via the binary counter 16, and the delay circuit 15 is connected to the third display lamp.
It is linked to the display lamp 9c.

The first and second indicator lamps 9a and 9b are alternately turned on by the output pulse b of the waveform shaping circuit 13, so as to alternately indicate the cardiac systole. In addition, the third display lamp 9
C is lit by the output pulse of the delay circuit 15 to indicate when the pulse is applied, and while monitoring this lighting time, the third
The delay time is set using the volume 8c.

The application means 11 is composed of an amplifier 17 and an output adjustment circuit 18, and the amplifier 17 is configured to boost the low frequency pulse manually applied via the changeover switch 7, for example to 50 to 160 cm, and output it. There is. The output adjustment circuit 17 adjusts the peak value, and is configured to adjust the boosted pulse to the applied pulse and output it, and is connected to the second volume 8b so that it can be adjusted freely, and is connected to the second volume 8b. It is connected to a pair of conductors 4a and 4b.

Next, a treatment method using this low frequency treatment device 1 will be explained.

First, a pair of conductors 4a and 4b are adhesively fixed to the affected area. Subsequently, when the applied pulse corresponds to the cardiac diastole period, the case 3a of the detection means 3 is attached to the ear A. Thereafter, when the changeover switch 7 is operated to the "synchronization" position, an applied pulse is applied.

That is, the light receiving element 10b receives the light emitted from the light emitting element 10a, converts it into an electrical signal, and outputs it.This signal indicates the cardiac systole because the amount of light received changes depending on the activity of the heart. signals will be included. From this signal, the pulse wave detection circuit 12 extracts and outputs only the pulse a indicating the cardiac systole. After shaping this output pulse a into a rectangular pulse b in the waveform shaping circuit 13,
The delay circuit 15 delays the signal by, for example, 400m5. The output pulse of this delay circuit 15 is synchronized with the cardiac diastole period.

This output pulse is passed through the changeover switch 7 to the amplifier 16.
After the peak value is adjusted in the output adjustment circuit 17, this applied pulse is applied to the affected area from the conductors 4a and 4b.

This applied pulse causes cardiac relaxation! I am synchronized with my friend, so
When the whole body, including the affected area, is in a relaxed state, tension is applied, and the reflex effect of this tension is relaxation, which treats the affected area. Tension and relaxation caused by this applied pulse are repeated in synchronization with the cardiac diastole period.

During this treatment, the output pulse b of the waveform shaping circuit 13 causes the first and second indicator lamps 9a and 9b to alternately light up to indicate the cardiac systole, while the output pulse of the delay circuit 15 causes the third indicator lamp to illuminate. 9c lights up to indicate when the applied pulse is output. Therefore, the first and second display lamps 9a,
After the lighting of 9b, the third display lamp 9c lights up with a delay of 400IIls, and its operation is as follows: 9a-9cm9b→9cm9
The order is a=... Monitor this lighting operation,
Adjust the third volume 8c to set the delay time to 350m.
5. Set it to 450m5, etc. This makes it possible to synchronize with one's own heartbeat; in other words, people with a fast heartbeat will have a shorter delay time (and people with a slower heartbeat will have a longer delay time).Also, when the pulse is detected by ear, the delay time can be adjusted to match the actual heart systole. Since there is a delay of 0.1 to 0.2 seconds, corrections will be made depending on the detected location.

On the other hand, when using the applied pulse without synchronizing the applied pulses during cardiac diastole, the changeover switch 7 is operated to the "free running" position. By this operation, the first oscillation unit 5 generates a free-running pulse (for example, 1, 5 tlz) corresponding to the adjustment value of the first volume 8a.
), and the amplifier 17 oscillates as in the “synchronization” described above
, through the output adjustment circuit 18, the applied pulse is applied to the conductor 4a,
4b to the affected area.

In this embodiment, an optical means is used as the detection means 3, but an electrode of an electrocardiograph may also be used.

Further, although the applied pulse is applied every time during cardiac diastole, it may be applied once every two times using a binary counter.

Moreover, it goes without saying that this treatment device 1 may be used for autonomic nerve training, and the application period may be made slightly longer than the pulsation period.

Further, the setting means is not limited to the volume 8C, and the display lamps 9a to 9c are not limited to the embodiments.

(F) Effects of the Invention As described above, according to the low-frequency treatment device of the present invention, since the applied pulse corresponds to the cardiac diastole phase, tension can be applied during the relaxation state where the load on the whole body of the living body is small. Therefore, the reflex relaxation effect is increased, and the treatment can be performed efficiently.

Further, since the delay time can be set by providing a delay circuit adjusting means, the time of application can be set arbitrarily, so that the application pulse can be applied at the optimal time according to the patient. Also,
A detection delay occurs depending on the mounting position of the detection means, but since this delay can be adjusted as desired, the therapeutic effect can be further enhanced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a circuit block diagram schematically showing a low frequency treatment device, and FIG. 2 is a perspective view of the same external appearance. 1: Low frequency treatment device, 2: Main body, 3: Detection means, 4: Application means, 5: First oscillation section, 6: Second oscillation section, 8a, 8b, 8
c: Volume, 9a-9b/9c: Display-77p, 11: Application means, 14: Oscillation means, 15: Delay circuit, 16: Binary counter.

Claims (1)

[Claims] (1) A detection means for detecting the cardiac systole, an oscillation means for receiving a detection signal from the detection means and outputting a pulse synchronized with the cardiac systole, and making the output pulse of the oscillation correspond to the cardiac diastole. A delay means for outputting the output, an adjustment means for adjusting the delay time of the delay means, an application means for amplifying the output pulse of the delay means, adjusting the pulse to be applied to the affected area, and outputting the pulse, and applying the pulse of the application means. 1. A low-frequency treatment device comprising a means for applying it to an affected part of a living body.