JPH02291871A - Interference low frequency treatment device - Google Patents

Abstract

PURPOSE:To always obtain constant interference frequency by outputting low frequency voltage from the second oscillation part in synchronous relation to the frequency of the low frequency voltage outputted from the first oscillation part. CONSTITUTION:When a treatment start switch is turned ON, low frequency voltage of 4000Hz is outputted from an oscillation part 1 and a current flows between directors 13a, 13b and, at the same time, for example, low frequency voltage of 4001Hz is outputted from an oscillation part 11 on the basis of the set value of a 1/N counter 6 and a current flows between directors 15a, 15b and, at a part where these current cross with each other, the undulation (interference wave) corresponding to the difference (1Hz) between both frequencies is generated. Herein, for example, when the frequency of the low frequency voltage outputted from the oscillation part 1 changes by the effect of temp., the frequency of the low frequency voltage outputted from the oscillation part 11 changes in the same rate as the changed rate. Therefore, interference frequency 1Hz does not change.

Description

Detailed Description of the Invention "Industrial Application Field" This invention is an interference low-frequency treatment method in which two currents with different frequencies are crossed in the human body, and treatment is performed by stimulation by the undulations (interference waves) generated at this time. The present invention relates to interferometric low-frequency therapy devices, and particularly to interferometric low-frequency therapy devices with improved operability.

"Prior Art" Conventionally, an interference low frequency treatment device, which is a type of low frequency treatment device, has been produced.

This interference low frequency treatment device places four conductors diagonally around the human body so as to surround the affected area, and then transmits different frequencies (for example, 40
By passing currents of 001ffiz and 400fif[z],
By crossing these in the human body, "undulations (so-called interference waves)" corresponding to the difference in Ji'1 wave loss are generated at the intersection, and the stimulation produced by this produces a therapeutic effect.Here Then, the current is supplied to each set of conductors.
The oscillating parts of fA are configured to set frequencies independently of each other, and the setting is performed by first setting one, and then matching the other to this frequency (Ollz!Q adjustment operation).

Then, the other is further shifted so that the difference from one is within the range of 1 to 10011z. In this case, it is important to keep the frequency difference constant in order to obtain a good therapeutic effect.

``Problem to be solved by the invention'' By the way, in the conventional interference low frequency therapy device mentioned above, the two oscillation parts are independent, so if the frequency changes due to temperature change, etc. Since it is necessary to readjust the frequency of at least one of the oscillators to obtain the original interference frequency, there is a problem of poor operability.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an interference low frequency treatment device that can always obtain a constant interference frequency.

"Means for Solving the Problems" This invention provides an interference low frequency therapy device that flows two currents with different frequencies into a living body, and an L-channel that outputs a low frequency voltage.
oscillation means, and second oscillation means that outputs a low frequency voltage in synchronization with the frequency of the low frequency voltage output from the first oscillation means.

"Effect" According to the above explanation, when the frequency of the low frequency voltage output from the first oscillation means changes, the frequency of the low frequency voltage output from the second oscillation means changes at the same rate as the rate of this change. It changes from

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The figure is a block diagram showing the electrical dimensions of the interference low frequency treatment device which is an embodiment of the present invention. In this diagram,
■ is an oscillation unit that outputs a low frequency voltage of a sine wave of 400011z, 2 is a frequency divider circuit that divides the frequency of oscillation unit 1, 3 is a phase comparison circuit, 4 is a low-pass filter (LI'F), and 5 is a Voltage controlled oscillator (VCO), 6 (I/N counter. These phase comparator circuits 3, L P I;' 4, VCO
5 and I/N counter 6 are P L L (['ha
se-Locked I, oop) circuit. In this case, the value of I/N counter 6 is 3968 to 4068.
It can be set within the range. 7 is a frequency dividing circuit,
8 is a phase comparison circuit, 9 is t, p t;'', 10 is ■C
It is O. The frequency divider circuit 2.7, PLL circuit, phase comparator circuit 8, LPF9 and VC010 described above constitute an oscillation section I1. This oscillator 11 has a frequency of 4,000 to 4,100 Hz in synchronization with the frequency of the oscillator 1 by an I'LL circuit.
Outputs low frequency voltage. Next, 12 is an amplifying circuit that amplifies the current supplied from the oscillator 1, and a pair of conductors 13a and 13b are respectively connected to its output terminal. 14 is an amplifier circuit that amplifies the current supplied from the oscillation section II, and a pair of conductors I5a and 15b are connected to the output terminals of the amplifier circuit.

Like this ++′? In the interferometric low frequency therapy device, the guide 1 3a. I 3b, I 5a, I 5b,
After attaching them alternately diagonally to surround the treatment area of the human body, when a treatment start switch (not shown) is turned on, a low frequency voltage of 40001-1z is output from the oscillating part l, which causes the conductor to A current flows between the conductors 15a and 13b, and at the same time, in synchronization with this 400011z, a low frequency voltage of, for example, 40011-1z is output from the oscillator 1l based on the set value of the l/N counter G, thereby causing the conductors 15a. A current flows between 15b. Conductor 13
Questions a, 13b and conductor 15a. When a current flows between 15b and 15b, the difference in frequency (f
llz) is generated. Here, if the frequency of the low frequency voltage output from the oscillator 1 changes due to the influence of temperature, etc., the frequency of the low frequency voltage output from the oscillator 1l will change at the same rate as this rate of change. Change. Therefore, the interference frequency I
LIz does not change.

"Effects of the Invention" As explained above, according to the interference low-frequency treatment device of the present invention, the low-frequency voltage is generated from the second oscillator in synchronization with the frequency of the low-frequency voltage output from the first oscillator. Therefore, even if the frequency of the first oscillating low-frequency voltage changes, the frequency of the second oscillating low-frequency voltage also changes at the same rate of change. Therefore, there is no need to perform frequency adjustment every time the interference frequency changes, unlike in the prior art. Further, by outputting a low frequency voltage from the second oscillation section in synchronization with the frequency of the low frequency voltage of the first oscillation section, it is not necessary to adjust the frequency of the second oscillation section.

In other words, there is no need for gifts for that purpose. Therefore, it is possible to improve the operability and reduce the cost. Furthermore, there are fewer knobs, so the design is cleaner.

[Brief explanation of the drawing]

The figure is a block diagram electrically showing an interference low frequency treatment device according to an embodiment of the present invention. I...Oscillation unit (first oscillation means), 2.7...
... Frequency divider circuit, 3.8 ... Phase comparison circuit, l1.9 ... (7-bus filter, 5, IO
... Voltage controlled oscillation circuit, 6 ... I/N counter (2 to 10 are oscillation means of the oscillation unit 2)), 1 3a, I 3b, 1 5a, l 5b-=conductor . ■ I (Protruding jaw person) Ito High Frequency Co., Ltd.

Claims (1)

[Claims] In an interference low frequency treatment device that flows two currents with different frequencies into a living body, a first oscillation means for outputting a low frequency voltage, and a frequency synchronized with the frequency of the low frequency voltage output from the first oscillation means are provided. 1. An interference low-frequency treatment device comprising: second oscillation means for outputting a low-frequency voltage.