JPH08112362A - Interference low-frequency medical treatment unit - Google Patents

Abstract

PURPOSE: To adjust the depth of the generation position of an interference wave in a human body affected part and enable an electric medical treatment by providing a control part with a frequency setting function, and optionally varying the frequencies of two intermediate frequency currents and then varying the depth of the interference wave generation position in the human body local part. CONSTITUTION: The setting part 5 of the interference low-frequency medical treatment unit 1 properly commands and sets the form of a voltage to be outputted, and the control part 2 operates with the signal from the setting part 5 and generates the set form. A waveform generation part 6 obtains the output from the control part 2 to generate a waveform signal, an output part 7 obtains the output from the generation part 6 and performs electric power conversion, and an electrode 9 is connected to the output part 7 by a conductor to feed an intermediate-frequency signal to the human body local part. The setting part 5 is provided with an intensity setting knob 10, a distance setting knob 11, and a carrier setting knob 12. The control part 2 is composed of a microcomputer and equipped with a frequency setting function 3 which can optionally vary the frequency of an interference wave carrier, and the frequency setting function 3 is commanded by the carrier setting knob 12 to set a transmission frequency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention applies two medium-frequency currents that are crossed to each other locally in the human body, and produces a stimulus (hereinafter referred to as an interference wave) corresponding to the frequency difference between the two medium-frequency currents. The present invention relates to an interfering low-frequency therapeutic device that is generated at an intersection of frequency currents and adds stimulation by the interference wave.

When a low frequency treatment device and an interference low frequency treatment device are compared, a current having a frequency of 1 Hz to 100 Hz is passed through the human body in the low frequency treatment device, so that the current flows through the epidermis of the human body, but a frequency of 1 KHz in the interference low frequency treatment device. Since a current of 10 to 10 KHz is passed through the human body, there is a difference that the current flows inside the human body. In addition, the low-frequency electric power is applied by the low-frequency treatment device.
When a 0 Hz stimulus is applied, a 100 Hz low-frequency current is directly applied to the electrodes, so that stimulation is caused in the entire energization path. However, when a 100 Hz interference wave stimulus is applied by an interfering low-frequency therapy device, a crossover is performed. The medium current is used for the currents of the two paths, and the current of the medium frequency has a high frequency, so it is relatively easy to energize the human body and does not cause irritation to the entire current path. It is possible to give an interference wave stimulus. The medium frequency refers to a frequency in the band of 1 KHz to 100 KHz, and an electric current having a frequency of 1 KHz to 30 KHz is often used for an interference low frequency treatment device.

[0003]

2. Description of the Related Art Japanese Patent Laid-Open No. 58-206760
There is one disclosed in Japanese Patent Publication No.
Disclosed is an electrical stimulator including a low frequency signal generator, a phase modulator, a pair of electrodes that outputs a stationary phase wave, and another pair of electrodes that outputs a phase-modulated waveform.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The device is considered to operate under a constant oscillation frequency of several thousand hertz, and a control unit and a frequency setting function for changing both frequencies of two medium frequencies (hereinafter referred to as an interference wave carrier) are not disclosed.

Therefore, it is not possible to adjust the depth of the generation position of the interference wave in the human body local part, and it is not possible to perform satisfactory energization treatment. An object of the present invention is to solve the problems of the prior art, and to provide an interference low frequency treatment device capable of performing satisfactory energization treatment by adjusting the depth of the generation position of the interference wave in the affected part of the human body. .

[0006]

That is, the present invention provides a control unit 2
Is an interference low-frequency therapeutic device characterized by having a frequency setting function 3 and changing the depth of an interference wave generation position in a human body local part by arbitrarily changing the frequency of an interference wave carrier.

[0007]

The frequency setting function 3 provided in the control unit 2 in the present invention arbitrarily changes the frequency of the interference wave carrier. By changing these frequencies, the depth of the position where the interference wave is generated changes.

[0008]

In the embodiment of the present invention, the human body part is energized by two separate power sources in two intersecting paths, and the currents A and B shown in FIG. 3 are made to flow, and a potential difference is generated between these two current paths. Occurs and a current flows, and this current is called an interference current, and is the interference low-frequency treatment device 1 that generates an envelope formed by this interference current, that is, an interference wave C.

The interference low frequency treatment device 1 has a setting unit 5 for appropriately instructing and setting the form of the voltage to be output, and the setting unit 5
Control unit 2 which operates by the signal of FIG. 1 to create a set form, a waveform creation unit 6 which obtains an output from the control unit 2 to create a waveform signal, and an output which obtains an output from the creation unit 6 and performs power conversion It is composed of a section 7 and an electrode 9 connected to the output section 7 by a conductor 8 for supplying a medium frequency current to the human body part.

The setting section 5 is a strength setting knob 1 for adjusting and setting the magnitude of the carrier wave of the interfering wave which is applied to the human body part.
0, a distance setting knob 11 for changing and adjusting the potential difference between the signal voltages related to the carrier wave of the interference wave and moving the position of generation of the interference wave generated in the human body part, and two parts for changing the frequency of the carrier wave of the interference wave for the human body part And a carrier setting knob 12 that changes the generation depth of the interference wave generated in Step 1.

Further, the setting unit 5 changes and adjusts the magnitude of each of the two energizing current values, and the interference wave frequency setting knob 13 for changing and setting the frequency of the fluctuating wave that changes the oscillation frequency of one energizing current. And a balance setting knob 14 for balancing.

The control unit 2 is made of a microcomputer and has a frequency setting function 3 capable of arbitrarily changing the frequency of the interference wave carrier. That is, the frequency setting function 3 uses the carrier setting knob 12
To set the oscillation frequency.

Further, the control unit 2 is provided with a first oscillation function 17 which obtains the signal of the frequency setting function 3 and creates an oscillation signal,
Further, a first balance setting function 18 for instructing the balance setting knob 14 to change and adjust the output amplitude of the oscillation signal obtained from the first oscillation function 17, and a first balance setting function operated by being instructed to the strength setting knob 10. And a first strength setting function 19 for changing and adjusting the amplitude level of the oscillation signal obtained from 18.

Further, the control unit 2 includes an interference frequency setting knob 1
3 to obtain the variable frequency generation function 20 for setting the oscillation frequency of the fluctuating wave, and the signal of the frequency setting function 3 together with the signal of the generation function 20 to instruct the frequency variation by both the functions 20 and 3 and the frequency. A second oscillation function 21 that creates an oscillation signal according to the change adjustment instruction. The oscillation frequency of the second oscillation function 21 is different from the oscillation frequency of the first oscillation function 21, and the difference is 100 Hz in one example.
And

Further, the control unit 2 obtains the output of the second oscillation function 21 and adjusts its level so as to be balanced with the output value of the first oscillation function 17 by the command of the balance setting knob 14. 22 and the setting function 2
And a second strength setting function 23 whose level is changed and adjusted by a command from the strength setting knob 10.

Further, the control section is provided with a distance setting function 24 for adjusting the level difference between the output of the first strength setting function 19 and the output of the second strength setting function 23 by the command of the distance setting knob 11.

The frequency of the first oscillating function 17 is different from the frequency of the second oscillating function 21, and due to this frequency difference, a potential difference is generated in the two current-carrying paths intersecting in the human body part, and an interference current flows to cause interference. A wave is generated, and the frequency difference becomes the frequency of the interference wave.

The waveform generator 6 has a first strength setting function 1
First waveform creating circuit 2 for creating the waveform signal by obtaining the output of 9
5 and a second waveform creation circuit 26 that creates the waveform signal by obtaining the output of the second strength setting function 23.

The output section 7 has a first output circuit 15 for obtaining the output of the first waveform forming circuit 25 and converting the power into the same, and a second output circuit 1 for obtaining the output of the second waveform forming circuit 26 and converting the power.
6 is provided.

The electrode 9 is connected to the first output circuit 15 to apply a current to the human body local part.
27b and second one / other electrode 4a, 4b connected to the second output circuit 16 and applying current to the human body part.

In use, the first one-side electrode 27a and the other-side electrode 27b are attached to the body part of the human body at a distance from each other to form a first energizing path, and the second one-side and the other-side electrodes are formed on the energizing path intersecting with the energizing path. The electrodes 4a and 4b are attached to form a second energization path.

The setting section 5 is operated to operate the equipment to energize the two paths. The operation of each knob and the phenomenon related to the operation will be described. First, the balance setting knob 14 is operated. The magnitudes of the energizing currents of the carrier waves of the interference waves of the two paths are adjusted simultaneously. A lamp (not shown) is turned on when the current values of the two paths become the same.

Next, the strength setting knob 10 is operated to change and adjust the amplitude of the interference wave carrier to adjust the interference wave current so that a suitable stimulus can be obtained.

The carrier setting knob 12 is operated to adjust the generation position of the interference wave generated in the human body part. Generally, when the two frequencies related to the interference wave carrier are both increased by the same number, the passage path of the interference wave carrier in the human body part reaches the deep part, and the position where the interference wave is generated moves to the deep part. On the contrary, if both frequencies are lowered by the same number, on the other hand, there is a feeling that the position where the interference wave is generated moves to a shallow portion. To explain the above mechanism, the impedance of the human body generally consists of a combination of capacitive and resistive, and the capacitive impedance becomes lower as it goes deeper. It will flow a lot.

In one example, when the oscillation frequency of the first oscillation function 17 is 4000 Hz and the oscillation frequency of the second oscillation function 21 is 3900 Hz, both oscillation frequencies are 600 Hz.
When it is increased by 0 Hz, the oscillation frequency of the first oscillation function 17 becomes 1
The frequency is 0000 Hz, and the oscillation frequency of the second oscillation function 21 is 9900 Hz. At these frequencies, an interference wave of 100 Hz is generated in the deep part of the human body part to give stimulation.

By operating the distance setting knob 11,
The stimulus sensation is changed by appropriately adjusting the difference between the two potentials to adjust the occurrence status of the interference current. By operating both the distance setting knob 11 and the balance setting knob 14, the planar position of the interference wave generated in the human body part is adjusted, and the carrier setting knob 12 is operated to adjust the depth of the interference wave.

The interference frequency setting knob 13 is operated to adjust the frequency output by the second oscillation function 21. For example,
If the interference frequency setting knob 13 is set to 0, the output frequency of the second oscillation function 21 becomes a constant frequency, and if the interference frequency setting knob 13 is set to 50 Hz, the frequency from 0 Hz to 50 Hz gradually increases / decreases within a predetermined time. While adding to the original frequency, the fluctuation is repeated. If the original frequency is 3900 Hz, 3900 Hz to 3950 Hz
Until the frequency range of the first oscillating function 21 is 4000 Hz, an interference wave that gradually increases and decreases in the frequency range of 100 Hz to 50 Hz is generated in the human body part.

[0028]

According to the present invention described in claim 1, the control unit 2 is provided.
Since the frequency setting function 3 is provided in both, the frequency of the interference wave carrier current can be adjusted by the same number for both, and the position of the interference wave generated in the human body part can be arbitrarily adjusted. , The treatment position could be adjusted, the treatment range could be expanded and the treatment effect could be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a diagram in which an electrode according to an embodiment of the present invention is attached to a human body.

FIG. 3 is a diagram of an interference wave generated using the embodiment of the present invention.

[Explanation of symbols]

 2 Control unit 3 Frequency setting function

Claims (1)

[Claims] 1. An interference characterized in that a control section (2) has a frequency setting function (3), and the depth of an interference wave generation position in a human body part is changed by arbitrarily changing the frequencies of two medium frequency currents. Low frequency therapy device.