JP2011244914A - Interference low-frequency therapeutic apparatus - Google Patents
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- 230000001225 therapeutic effect Effects 0.000 title abstract description 28
- 230000000638 stimulation Effects 0.000 abstract description 27
- 230000004118 muscle contraction Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 210000003205 muscle Anatomy 0.000 description 7
- 206010052804 Drug tolerance Diseases 0.000 description 6
- 230000026781 habituation Effects 0.000 description 6
- 239000000969 carrier Substances 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Abstract
Description
本発明は干渉低周波治療器に関する。 The present invention relates to an interference low frequency treatment device.
干渉低周波治療器は、周波数が僅かに異なる複数の電流を同時に生体に流し、生体内で発生する干渉低周波電流で刺激をおこなうものである。
従来の低周波治療器は、周波数が1000Hz以下の、通常は数十Hz以下の電流を、皮膚表面に貼付した電極を介して生体に供給していた。しかし、皮膚は図3に示すような抵抗成分Ｒとｒ、容量成分Ｃからなる電気的等価回路を有し、そのインピーダンスは数キロオームと大きいため、出力を大きくすると不快な電気刺激感や痛みが生じ、所望の大きさの電流を流すことができず、十分な治療効果が得られないという問題があった。
これを解決するために開発されたのが干渉低周波治療器である。
The interference low-frequency treatment device is configured to cause a plurality of currents having slightly different frequencies to flow through a living body at the same time and perform stimulation with the interference low-frequency current generated in the living body.
A conventional low frequency treatment device supplies a current having a frequency of 1000 Hz or less, usually tens of Hz or less, to a living body via an electrode attached to the skin surface. However, the skin has an electrical equivalent circuit consisting of resistance components R and r and a capacitance component C as shown in FIG. 3, and its impedance is as large as several kilohms. As a result, there is a problem that a current having a desired magnitude cannot be supplied and a sufficient therapeutic effect cannot be obtained.
In order to solve this problem, an interference low frequency treatment device has been developed.
干渉低周波治療器は、図4のように、周波数が僅かに異なる2つの電流（搬送波）を同時に生体に供給し、2つの搬送波の周波数差の干渉低周波を発生させて生体を刺激（筋収縮）するものである。
搬送波の周波数ｆには数ｋHz（通常は4000Hz前後）、のものが使用されている。この周波数は従来の一般的な低周波治療器よりも1桁程度、高いため、皮膚インピーダンスは1/10程度になり、電気刺激感覚は殆どない。このため、従来よりも大きなエネルギーを供給できる。しかし、4000Hz程度の電流単独では筋収縮を得ることはできない。
そこで、周波数が僅かに異なる2つの搬送波を用い、生体内で発生する干渉低周波により、筋収縮を得るようにしている。数〜数十Hzの電流は効果的に筋収縮を得ることができる。
このようにして、干渉低周波治療器では、高い周波数の搬送波を用いることで不快な電気刺激感が無く、従来よりも大きな電気エネルギーを供給することができるようにし、しかも、2つの搬送波を干渉させて発生する干渉低周波で効果的に筋収縮を得ることができるようにしている。
このようにして、干渉低周波治療器は従来の低周波治療器の問題を解決し、高い治療効果を得ることができる。
As shown in Fig. 4, the interference low-frequency treatment device supplies two currents (carrier waves) with slightly different frequencies to the living body at the same time, generates an interference low frequency with a frequency difference between the two carrier waves, and stimulates the living body (muscles). (Shrink).
A carrier wave having a frequency f of several kHz (usually around 4000 Hz) is used. Since this frequency is about an order of magnitude higher than that of a conventional general low-frequency treatment device, the skin impedance is about 1/10 and there is almost no sense of electrical stimulation. For this reason, larger energy than conventional can be supplied. However, muscle contraction cannot be obtained with a current of about 4000 Hz alone.
Therefore, two carrier waves having slightly different frequencies are used, and muscle contraction is obtained by the interference low frequency generated in the living body. A current of several to several tens Hz can effectively obtain muscle contraction.
In this way, the interference low-frequency treatment device can supply a larger amount of electric energy than before by interfering with two carrier waves without causing unpleasant electrical stimulation by using a high-frequency carrier wave. Thus, the muscle contraction can be effectively obtained at the interference low frequency generated.
In this way, the interference low-frequency treatment device can solve the problems of the conventional low-frequency treatment device and obtain a high therapeutic effect.
以上の説明では、周波数が僅かに異なる2つの搬送波を同時に生体に供給し、生体内で干渉低周波を発生させる干渉低周波治療器について述べたが、搬送波の位相を制御することでも、これと同様の干渉低周波を発生させることができる（例えば特許文献1など）。そのブロック図の例を図6に示す。 In the above description, an interference low frequency treatment device that supplies two carrier waves with slightly different frequencies to the living body at the same time and generates an interference low frequency in the living body has been described. A similar interference low frequency can be generated (for example, Patent Document 1). An example of the block diagram is shown in FIG.
図6は、位相を制御して干渉低周波を発生させる干渉低周波治療器のロック図である。
装置は搬送波発生部61と、位相器62と、増幅器65aと65ｂ、制御部66と、電極67a、67ｂ、68a、68ｂから構成される。搬送波発生部61で発生させた搬送波は増幅器65aで増幅されて電極67aと67ｂを介して、生体に供給され、一方、搬送波発生部61で発生させた搬送波は位相器62で位相制御され、増幅器65ｂで増幅され、電極68aと68ｂを介して、生体に供給される。
このとき、位相器62で、搬送波の位相を、周期δfで直線状に変化させると、搬送波周波数がｆで干渉低周波の周波数がδfの干渉低周波を得ることができ、図5（C）と同じ干渉低周波を得ることができる。
図の66は制御部で、搬送波発生部61や位相器52を制御し、搬送波の周波数や干渉低周波の波形や周波数などを所望の値に制御することができる。
増幅器65aと65ｂの増幅率は装置の操作パネルに設けた出力調節器の操作量に依存する。出力調節器を操作して、適切な刺激の強さ（筋収縮や刺激感覚が適切な強さ）になるように、使用する。
FIG. 6 is a lock diagram of an interference low-frequency treatment device that generates a low-frequency interference by controlling the phase.
The apparatus includes a carrier wave generation unit 61, a phase shifter 62, amplifiers 65a and 65b, a control unit 66, and electrodes 67a, 67b, 68a and 68b. The carrier wave generated by the carrier wave generating unit 61 is amplified by the amplifier 65a and supplied to the living body via the electrodes 67a and 67b, while the carrier wave generated by the carrier wave generating unit 61 is phase-controlled by the phase shifter 62, and the amplifier Amplified at 65b and supplied to the living body via electrodes 68a and 68b.
At this time, if the phase of the carrier wave is changed linearly with the period δf by the phase shifter 62, an interference low frequency having a carrier frequency of f and a frequency of the interference low frequency of δf can be obtained. The same interference low frequency can be obtained.
66 in the figure is a control unit that controls the carrier wave generation unit 61 and the phase shifter 52, and can control the frequency of the carrier wave and the waveform and frequency of the interference low frequency to desired values.
The amplification factors of the amplifiers 65a and 65b depend on the operation amount of the output regulator provided on the operation panel of the apparatus. Operate the output regulator and use it so that the appropriate stimulation intensity (muscle contraction and stimulation sensation is appropriate).
以上のように、従来の干渉低周波治療器は、搬送波1と、搬送波1の周波数又は位相を制御した搬送波2の、2系統の搬送波を生体に流し、生体内で発生する干渉低周波で治療をおこなうものである。
このような、周波数が僅かに異なる2つの搬送波を用いる従来の干渉低周波治療器は、従来の一般的な低周波治療器の問題を解決し、不快感が少ない、効果的な治療をおこなうことはできるが、周波数δｆの干渉低周波のみで筋肉刺激をおこなうため、比較的単調な刺激になり、慣れが生じるという問題があった。
そこで、周波数が異なる3つの搬送波を出力して、3つの干渉低周波を得て、より変化に富む筋肉刺激をおこなうようにした技術も開示されている（例えば引用文献2など）。
As described above, the conventional interference low-frequency treatment device allows the carrier 1 and the carrier 2 that controls the frequency or phase of the carrier 1 to flow through the living body and treat with the interference low-frequency generated in the living body. It is to do.
The conventional interference low-frequency treatment device that uses two carrier waves with slightly different frequencies solves the problems of conventional low-frequency treatment devices, and provides effective treatment with less discomfort. However, since the muscle stimulation is performed only by the interference low frequency of the frequency δf, there is a problem that the stimulation becomes relatively monotonous and the habituation occurs.
Therefore, a technique has been disclosed in which three carrier waves having different frequencies are output to obtain three interference low frequencies to perform more varied muscle stimulation (for example, cited reference 2).
図7は引用文献2のブロック図である。装置は、周波数発生部（図中の符号11）で周波数αの搬送波を発生し、周波数設定部（図中の符号15）で周波数βの治療波を発生し、2つの周波数変換器（図中の符号15Bと符号15C）で周波数がα+βとα+2βの2つの搬送波を作成し、この3つの搬送波を3つの出力部（図中の14A,14B、14C）で増幅して生体に供給し、周波数がβと2βの2種類の干渉低周波を得て生体を刺激するようにしている。
このため、従来の干渉低周波治療器では1種類の干渉低周波（周波数がδｆ）で筋肉刺激していたが、引用文献2により、周波数がβと2βの2種類の干渉低周波で筋肉刺激をおこなうことができ、より変化に富んだ刺激を可能になる。電気刺激では、治療を続けるうちに刺激に対して生体の慣れが生じて、治療効果が低下するという問題があったが、引用文献2により電気刺激に対する慣れが少なくなり、より高い治療効果を得ることができる。
FIG. 7 is a block diagram of Cited Document 2. The device generates a carrier wave with a frequency α at a frequency generator (reference numeral 11 in the figure), generates a therapeutic wave with a frequency β at a frequency setting part (reference numeral 15 in the figure), and has two frequency converters (in the figure). 15B and 15C)), two carriers with frequencies α + β and α + 2β are created, and these three carriers are amplified by three outputs (14A, 14B, and 14C in the figure). By supplying two types of interference low frequencies, β and 2β, the living body is stimulated.
For this reason, the conventional interference low-frequency treatment device stimulates muscles with one type of interference low frequency (frequency is δf). However, according to cited document 2, muscle stimulation is performed with two types of interference low frequencies of β and 2β. Can be stimulated with more variety. In electrical stimulation, there was a problem that the habituation of the living body occurred as the treatment continued and the therapeutic effect was reduced, but the habituation to the electrical stimulation was reduced by Cited Document 2, and a higher therapeutic effect was obtained. be able to.
前述のように、特許文献1などの干渉低周波治療器は、従来の一般的な低周波治療器と比して、不快な刺激感が無く、多くの電気エネルギーを生体に供給でき、治療効果が高い。しかし、1つの干渉低周波で生体を刺激するため、比較的単調な刺激しかなく、このため、慣れが生じて、治療効果が低下するという問題があった。
特許文献2は、3つの干渉低周波を発生させて生体を刺激するため、従来の干渉低周波治療器と比して、より変化に富んだ刺激が効能であるため、より高い治療効果が期待できる。
しかし、特許文献2の装置は3組6個の電極を必要とするため、四肢などの小さな部分を治療する場合、電極を貼るスペースがとれず、特長を生かせないという問題を有している。
本発明は、これらの課題を解決し、より少ない電極でより効果的な治療をおこなうことのできる新しいタイプの干渉低周波治療器を提供することを目的とする。
As described above, the interference low-frequency treatment device such as Patent Document 1 has no unpleasant irritation compared to the conventional general low-frequency treatment device, and can supply a lot of electric energy to the living body, and has a therapeutic effect. Is expensive. However, since the living body is stimulated with one interference low frequency, there is only a relatively monotonous stimulation, and there is a problem that the habituation occurs and the therapeutic effect decreases.
Since Patent Literature 2 stimulates a living body by generating three interference low frequencies, a more varied stimulation is effective compared to conventional interference low frequency treatment devices, so a higher therapeutic effect is expected. it can.
However, since the device of Patent Document 2 requires three sets of six electrodes, when treating a small part such as an extremity, there is a problem that a space for attaching electrodes cannot be taken and the features cannot be utilized.
An object of the present invention is to solve these problems and to provide a new type of interference low frequency treatment device capable of performing more effective treatment with fewer electrodes.
そこで本発明では、
周波数がｆの中周波領域の搬送波を発生する搬送波発生部と、
前記搬送波の位相又は周波数を所定の周波数及び波形で変化させる変換器と、
前記搬送波発生部の出力と前記変換器の出力を加算して筋肉を十分に収縮させる周波数を有する内部干渉低周波を出力する加算器と、
前記加算器の出力を所望の値に増幅する増幅器と、
を有する出力部を、複数系統設けた。
Therefore, in the present invention,
A carrier wave generator for generating a medium frequency carrier wave having a frequency f;
A converter that changes the phase or frequency of the carrier wave at a predetermined frequency and waveform;
An adder that outputs an internal interference low frequency having a frequency that sufficiently contracts the muscle by adding the output of the carrier wave generator and the output of the converter;
An amplifier for amplifying the output of the adder to a desired value;
A plurality of output units having
第1の出力部から、搬送波の周波数がｆで、干渉低周波の周波数δｆ1の、第1の内部干渉低周波を出力し、
第2の出力部から、搬送波の周波数がｆで、干渉低周波の周波数δｆ2の、第2の内部干渉低周波を出力し、
第ｎの出力部から、搬送波の周波数がｆで、干渉低周波の周波数δｆｎの、第ｎの内部干渉低周波を出力し、
各々の出力部から出力するｎ個の内部干渉波で生体を刺激する。
また、これを同時に生体に供給すると、各々の出力部から出力する内部干渉低周波が他の出力部が出力する内部干渉波と干渉し、生体内でｎ(ｎ-1)/2個の干渉低周波が発生し、生体を刺激する。
From the first output unit, the first internal interference low frequency of the carrier wave frequency f and the interference low frequency δf1 is output,
From the second output unit, a second internal interference low frequency having a carrier frequency f and an interference low frequency δf2 is output,
From the n-th output unit, the carrier wave frequency is f and the interference low-frequency frequency δfn is output, and the n-th internal interference low-frequency is output.
A living body is stimulated by n internal interference waves output from each output unit.
When this is simultaneously supplied to the living body, the internal interference low frequency output from each output unit interferes with the internal interference wave output from the other output units, and n (n-1) / 2 interferences in the living body. Low frequency is generated and stimulates the living body.
このため、各出力系統から出力するｎ個の内部干渉低周波と、生体内で生じるｎ(ｎ-1)/2個の干渉低周波の、合計ｎ+ｎ(ｎ-1)/2個の干渉低周波で生体を刺激する。
例えば、本発明で出力系統を2個にすると、周波数がａとｂの2つの内部干渉波を出力し、生体内で、周波数がａ-ｂの干渉低周波が発生し、これらの合計3個の干渉低周波で生体を刺激する。
従来の2組の電流を用いる特許文献1の干渉低周波治療器では、1個の干渉低周波で刺激をおこなっていた。干渉低周波治療器は従来の一般的な低周波治療器よりも高い治療効果を有するが、1個の干渉低周波による比較的単純な刺激であるため、慣れが生じて、治療効果が低下するという問題を有していた。
これに対して本発明では、同じ電極数でより複雑な刺激をおこなうことができるため、慣れはより少なく、このため、特許文献1よりも高い治療効果を得ることができる。
Therefore, a total of n + n (n-1) / 2 of n internal interference low frequencies output from each output system and n (n-1) / 2 interference low frequencies generated in the living body. Stimulate the living body with low frequency interference.
For example, when the number of output systems is two in the present invention, two internal interference waves with frequencies a and b are output, and an interference low frequency with frequency ab is generated in the living body. Stimulate the living body with low frequency interference.
In the conventional interference low frequency treatment device of Patent Document 1 using two sets of currents, stimulation is performed with one interference low frequency. Interfering low frequency therapy equipment has a higher therapeutic effect than conventional general low frequency therapy equipment, but because it is a relatively simple stimulus with a single interference low frequency, habituation occurs and the therapeutic effect is reduced. Had the problem.
On the other hand, in the present invention, since more complex stimulation can be performed with the same number of electrodes, less familiarity is obtained, and therefore, a therapeutic effect higher than that of Patent Document 1 can be obtained.
従来の3組の電流を用いる特許文献2の干渉低周波治療器では、生体内で3個の干渉低周波を発生させて刺激をおこなっていた。このため、特許文献1よりも複雑な、より慣れの少ない刺激が可能で、このため、特許文献1よりも高い治療効果が得られている。
これに対して本発明では、特許文献2と同じ数の干渉低周波で刺激をおこなうため、特許文献2と同等の治療効果が期待できる。しかも、本発明では2組の電極しか要しないため、特許文献2では治療が不可能であった電極が貼れないような小さな患部の治療も可能である。つまり、本発明の適応範囲は特許文献2よりも広くなる。
ｎ系統の出力数にすると、前述のように、ｎ+ｎ（ｎ-１）/2個の干渉低周波で生体刺激をおこなうため、複雑で、慣れの少ない刺激をおこなうことができ、治療効果を向上させることができる。
In the conventional interference low frequency treatment device of Patent Document 2 using three sets of currents, stimulation is performed by generating three interference low frequencies in vivo. For this reason, stimulation that is more complicated and less accustomed than Patent Document 1 is possible. Therefore, a therapeutic effect higher than that of Patent Document 1 is obtained.
On the other hand, in the present invention, stimulation is performed with the same number of interference low frequencies as in Patent Document 2, and therefore, a therapeutic effect equivalent to that of Patent Document 2 can be expected. In addition, since only two sets of electrodes are required in the present invention, it is possible to treat a small affected area where an electrode that cannot be treated in Patent Document 2 cannot be applied. That is, the applicable range of the present invention is wider than that of Patent Document 2.
When the number of outputs is n, as described above, biostimulation is performed with n + n (n-1) / 2 interference low frequencies, so it is possible to perform complex and less accustomed stimuli, and the therapeutic effect Can be improved.
以下に、出力系統を2系統にした実施例を中心に、本発明を説明する。 Hereinafter, the present invention will be described focusing on an embodiment in which two output systems are used.
本発明は、
周波数がｆの中周波領域の搬送波を発生する搬送波発生部と、
前記搬送波発生部で発生させた搬送波の位相又は周波数を所望の周波数で変化させる変換器と、
前記搬送波発生部の出力と前記変換器の出力を加算して干渉低周波を出力する加算器と、
前記加算器の出力を所望の値に増幅する増幅器と、
変換器を制御する制御部、
を有する干渉低周波出力部を複数系統、設け、
前記複数系統の干渉低周波出力部の出力を同時に生体に供給する電極を設けた、干渉低周波治療器である。
The present invention
A carrier wave generator for generating a medium frequency carrier wave having a frequency f;
A converter that changes the phase or frequency of the carrier wave generated by the carrier wave generator at a desired frequency;
An adder that adds the output of the carrier wave generator and the output of the converter to output an interference low frequency;
An amplifier for amplifying the output of the adder to a desired value;
A control unit for controlling the converter,
A plurality of interference low-frequency output units having,
It is an interference low frequency treatment device provided with an electrode for simultaneously supplying the outputs of the plurality of interference low frequency output units to the living body.
本発明の干渉低周波出力部を2系統にした実施例のブロック図を図1に示す。
装置は、搬送波発生部1と、治療波発生器2a、周波数変換器3ａ、加算器4ａ、増幅器5ａ、及び電極8で構成する第1の出力系統（干渉低周波出力部）と、搬送波発生部1と、治療波発生器2ｂ、周波数変換器2ｂ、加算器4ｂ、増幅器5ｂ、電極9とで構成する第2の出力系統（干渉低周波出力部）と、
制御部6と、
で構成される。
FIG. 1 shows a block diagram of an embodiment in which the interference low-frequency output unit of the present invention has two systems.
The apparatus includes a carrier wave generator 1, a treatment wave generator 2a, a frequency converter 3a, an adder 4a, an amplifier 5a, and an electrode 8, a first output system (interference low frequency output unit), and a carrier wave generator. 1 and a second output system (interference low frequency output unit) composed of a therapeutic wave generator 2b, a frequency converter 2b, an adder 4b, an amplifier 5b, and an electrode 9,
Control unit 6;
Consists of.
制御部6は、搬送波発生部1、治療波発生器2a及び2ｂ、周波数変換器3ａ及び3ｂ、加算器4ａ及び4ｂ、増幅器5ａ及び5ｂ、及び図に記載していないが装置の操作部の入力を読み取り、それに応じて表示部を含む装置全体を制御する。
搬送波発生部1は制御部6で制御されて、所定の周波数ｆの搬送波を発生する。搬送波の周波数は設定した値に制御できるが、固定でも良い。
治療波発生器2aと2ｂは制御部6で制御されて、それぞれ、第１出力系統の治療波の周波数αと第２出力系統の治療波の周波数βを発生する。治療波は周波数情報だけでなく、周波数をどのようなパターンで変化させるかによって、波形情報を与えることができる。波形情報とは、正弦波や矩形波のように、治療波の波形であり、内部干渉波や生体で発生する干渉低周波の波形と周波数を規定する。ここでは治療派は正弦波の例を述べているが、この場合、例えば治療波の周波数を、経時的に、直線状に増加しその後減少させる（三角波状に変化させる）と、正弦波状の治療波を発生させることができる。また、期間Ｔだけ治療波の周波数をα又はβにして、その後治療波の周波数をゼロにする（パルス状に変化させる）と、パルス状の治療波とすることができる。α又はβを一定に保つと、周期がα又はβの正弦波状の干渉低周波が得られる。位相制御をおこなうと、周波数制御と同様、干渉低周波の波形及び周波数を制御することができる。
The control unit 6 includes a carrier wave generation unit 1, therapeutic wave generators 2a and 2b, frequency converters 3a and 3b, adders 4a and 4b, amplifiers 5a and 5b, and an input of an operation unit (not shown) of the apparatus. And controls the entire apparatus including the display unit accordingly.
The carrier wave generation unit 1 is controlled by the control unit 6 to generate a carrier wave having a predetermined frequency f. The frequency of the carrier wave can be controlled to a set value, but may be fixed.
The therapeutic wave generators 2a and 2b are controlled by the control unit 6 to generate the therapeutic wave frequency α of the first output system and the therapeutic wave frequency β of the second output system, respectively. In the treatment wave, not only frequency information but also waveform information can be given depending on the pattern in which the frequency is changed. The waveform information is a waveform of a therapeutic wave, such as a sine wave or a rectangular wave, and defines a waveform and frequency of an internal interference wave or an interference low frequency generated in a living body. Here, the treatment group describes an example of a sine wave. In this case, for example, if the frequency of the treatment wave is increased linearly with time and then decreased (changed to a triangular wave), the treatment of a sine wave is performed. Waves can be generated. Further, when the frequency of the treatment wave is set to α or β for the period T and then the frequency of the treatment wave is set to zero (changed in a pulse shape), a pulsed treatment wave can be obtained. When α or β is kept constant, a sinusoidal interference low frequency with a period of α or β is obtained. When the phase control is performed, the waveform and frequency of the interference low frequency can be controlled similarly to the frequency control.
周波数変換器3ａは、搬送波発生部1が発生する周波数ｆの搬送波と、治療波発生器2aが発生する周波数αの治療波から、周波数ｆ+αの搬送波を出力する。
周波数変換器3ｂは、搬送波発生部1が発生する周波数ｆの搬送波と、治療波発生器2ｂが発生する周波数βの治療波から、周波数ｆ+βの搬送波を出力する。
加算器4ａは、搬送波発生部1の出力と周波数変換器3ａの出力を加算して、周波数がｆの搬送波を含む周波数がαの干渉低周波を発生する。この干渉低周波は装置内部で発生させているため、本発明では内部干渉低周波と称している。周波数αは筋収縮が可能な周波数にしているため、この内部干渉低周波だけでも筋収縮を生じさせることができる。
The frequency converter 3a outputs a carrier wave having a frequency f + α from a carrier wave having a frequency f generated by the carrier wave generator 1 and a treatment wave having a frequency α generated by the treatment wave generator 2a.
The frequency converter 3b outputs a carrier wave having the frequency f + β from the carrier wave having the frequency f generated by the carrier wave generator 1 and the treatment wave having the frequency β generated by the treatment wave generator 2b.
The adder 4a adds the output of the carrier wave generator 1 and the output of the frequency converter 3a to generate an interference low frequency having a frequency including a carrier wave having a frequency f. Since this interference low frequency is generated inside the apparatus, it is referred to as internal interference low frequency in the present invention. Since the frequency α is set to a frequency at which muscle contraction is possible, muscle contraction can be caused only by this low internal interference frequency.
同様に加算器4ｂは、搬送波発生部1の出力と周波数変換器3ｂの出力は、を加算して、周波数がｆの搬送波を含む周波数がβの内部干渉低周波を発生する。この内部干渉低周波でも筋収縮を生じさせることができる。
第１の出力系統と第2の出力系統のが発生する内部干渉低周波は、増幅器5ａと5ｂで所望の値に増幅され、電極8と9を介して、生体に供給される。
生体内で、2つの出力系統から出力された2つの内部干渉低周波が干渉し、周波数がｆの搬送波を含む周波数がα-βの干渉低周波が発生する。
その結果、生体は周波数がα-βの生体内で発生する干渉低周波と、第１出力系統が出力する周波数がαの内部干渉低周波と、第2出力系統が発生する周波数がβの内部干渉低周波の、合計3つの干渉低周波で生体を刺激し、筋収縮を生じさせる。
Similarly, the adder 4b adds the output of the carrier wave generator 1 and the output of the frequency converter 3b to generate an internal interference low frequency having a frequency β including a carrier wave having a frequency f. Muscle contraction can be caused even by this low frequency of internal interference.
The internal interference low frequency generated by the first output system and the second output system is amplified to a desired value by the amplifiers 5a and 5b and supplied to the living body through the electrodes 8 and 9.
In a living body, two internal interference low frequencies output from two output systems interfere with each other, and an interference low frequency having a frequency of α-β including a carrier wave having a frequency f is generated.
As a result, the living body has an interference low frequency generated in the living body having the frequency α-β, an internal interference low frequency output by the first output system is α, and a frequency generated by the second output system is the internal frequency of β. Stimulates a living body with a total of three interference low frequencies of interference low frequency, causing muscle contraction.
1個の干渉低周波で治療していた特許文献1のような干渉低周波治療器と比し、本発明の干渉低周波治療器によると、より複雑な刺激をおこなうことができるので、慣れがより少なくなり、治療効果も向上する。
3つの干渉低周波で治療する点は特許文献2と同じであり、同等の治療効果を有する。しかし、本発明では2組の電極でよいが、特許文献2は3組の電極を必要とする。手足のように小さな部位では電極を3組貼るスペースがない場合もある。このような部位では効果の劣る特許文献1のような干渉低周波を使用する以外に無いため、効果の劣る治療をおこなわざるを得ない。しかし本発明では2組の電極で済むため、小さな部位でも特許文献2と同等の高い治療をおこなうことができる。
Compared with the interference low frequency treatment device such as Patent Document 1 that was treated with one interference low frequency, the interference low frequency treatment device of the present invention can perform more complex stimulation, so It becomes less and the therapeutic effect is improved.
The point of treatment with three interference low frequencies is the same as in Patent Document 2 and has the same therapeutic effect. However, in the present invention, two sets of electrodes may be used, but Patent Document 2 requires three sets of electrodes. There are cases where there is no space for three sets of electrodes in a small part such as a limb. In such a region, there is no use other than using the low frequency interference as in Patent Document 1, which is ineffective, and treatment with inferior effect must be performed. However, since only two sets of electrodes are required in the present invention, high treatment equivalent to that of Patent Document 2 can be performed even at a small site.
以上の説明では、変換器3ａ及び3ｂに周波数変換器を用いた例を述べた。しかし本発明は、変換器3ａ及び3ｂに位相器を使用してもよい。
この場合、治療波発生器で作成したパターン（治療波の波形と周波数）によって位相器を制御し、搬送波発生部1が発生する周波数ｆの搬送波の位相を制御する。この位相器出力と搬送波発生部1の出力を加算器で加算すると、やはり、周波数がαとβの内部干渉低周波を発生させることができる。
In the above description, an example in which frequency converters are used for the converters 3a and 3b has been described. However, the present invention may use a phase shifter for the converters 3a and 3b.
In this case, the phase shifter is controlled by the pattern (the waveform and frequency of the treatment wave) created by the treatment wave generator, and the phase of the carrier wave of the frequency f generated by the carrier wave generator 1 is controlled. When the output of the phase shifter and the output of the carrier wave generator 1 are added by an adder, an internal interference low frequency having frequencies α and β can be generated.
出力系統を4個以上にすると、より多くの干渉低周波で、より複雑な、新しい刺激感の、よりなれの少ない、より効果的な筋刺激をおこなうことができる。
また、本発明では、搬送波の周波数を制御できる。搬送波の周波数が例えば1ｋＨｚ程度から10ｋＨｚ程度まで変化すると、それぞれの周波数領域で筋収縮力も異なるし、電気刺激感も異なり、周波数の変化を識別することができる。このため、搬送波の周波数を大きく変化させると、それだけで目新しい刺激となり、慣れを防止できる。
When the number of output systems is 4 or more, more effective muscle stimulation can be performed with more interference, low frequency, more complex, new stimulation feeling, less familiarity.
In the present invention, the frequency of the carrier wave can be controlled. When the frequency of the carrier wave changes from about 1 kHz to about 10 kHz, for example, the muscle contraction force is different in each frequency region, the electric stimulation feeling is also different, and the change in frequency can be identified. For this reason, if the frequency of the carrier wave is changed greatly, it will become a novel stimulus by itself and prevent habituation.
さらに、本発明では、治療波発生器で任意の波形と周波数情報を有する情報を出力することができる。このため、内部干渉低周波の波形と周波数、及び生体内で発生する干渉低周波の波形と周波数を任意に設定でき、しかも、干渉低周波の波形と周波数を経時的に変化させることも可能である。通常、従来の干渉低周波治療器では、正弦波状の干渉低周波や、矩形のバースト波を発生させていた。しかし、本発明では、任意の波形のパルス状の干渉低周波を得ることができるので、神経刺激に適した細いパルスや、創傷治癒促進に適した幅の広いパルスなど、目的に応じた波形の干渉低周波を出力することができる。さらに、搬送波の周波数を変化させると、搬送波の周波数帯による刺激感覚の違いも知覚でき、より変化に富んだ刺激が可能になる。 Furthermore, in this invention, the information which has arbitrary waveforms and frequency information can be output with a therapeutic wave generator. Therefore, the internal interference low frequency waveform and frequency, and the interference low frequency waveform and frequency generated in the living body can be set arbitrarily, and the interference low frequency waveform and frequency can be changed over time. is there. Usually, conventional interference low frequency treatment devices generate sinusoidal interference low frequency and rectangular burst waves. However, in the present invention, a pulse-like interference low frequency having an arbitrary waveform can be obtained. Interference low frequency can be output. Furthermore, if the frequency of the carrier wave is changed, a difference in stimulation sensation depending on the frequency band of the carrier wave can be perceived, and stimulation with more variety is possible.
1、61 搬送波発生部
2ａ、2ｂ 治療波発生部
3ａ、3ｂ、63 変換器
4ａ、4ｂ 加算器
5ａ、5ｂ、65ａ、65ｂ 増幅器
6、66 制御部
7ａ、7ｂ 加算器入力レベル調整器
8、9、68、69 電極
1, 61 Carrier wave generator
2a, 2b Treatment wave generator
3a, 3b, 63 converter
4a, 4b adder
5a, 5b, 65a, 65b Amplifier
6, 66 Control unit
7a, 7b Adder input level adjuster
8, 9, 68, 69 electrodes
Claims (1)
治療波を発生する治療は発生部と、
前記搬送波発生部で発生させた搬送波の位相又は周波数を所定の範囲で変化させる変換器と、
前記搬送波発生部の出力と前記変換器の出力を加算し干渉低周波を出力する加算器と、
前記加算器の出力を所望の値に増幅する増幅器と、
を有する干渉低周波出力部を複数系統、設けた、
前記複数系統の干渉低周波出力部の出力を生体に供給するようにした干渉低周波治療器。 A carrier wave generator for generating a carrier wave having a frequency f;
The treatment that generates the treatment wave is the generation part,
A converter that changes the phase or frequency of the carrier wave generated by the carrier wave generator in a predetermined range;
An adder for adding the output of the carrier wave generator and the output of the converter to output an interference low frequency;
An amplifier for amplifying the output of the adder to a desired value;
A plurality of interference low-frequency output units having
An interference low-frequency treatment device configured to supply the living body with outputs from the plurality of interference low-frequency output units.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5330270B1 (en) * | 1970-09-08 | 1978-08-25 | ||
| JP2002263200A (en) * | 2001-03-09 | 2002-09-17 | Og Giken Co Ltd | Multiple stimulation type interference low frequency treatment instrument |
| JP2003010344A (en) * | 2001-07-02 | 2003-01-14 | Minato Ikagaku Kk | Electric stimulator |
| JP4208988B2 (en) * | 1998-02-05 | 2009-01-14 | 株式会社日本メディックス | Interference low frequency treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5330270B1 (en) * | 1970-09-08 | 1978-08-25 | ||
| JP4208988B2 (en) * | 1998-02-05 | 2009-01-14 | 株式会社日本メディックス | Interference low frequency treatment device |
| JP2002263200A (en) * | 2001-03-09 | 2002-09-17 | Og Giken Co Ltd | Multiple stimulation type interference low frequency treatment instrument |
| JP2003010344A (en) * | 2001-07-02 | 2003-01-14 | Minato Ikagaku Kk | Electric stimulator |
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