JP2012070777A - Therapeutic apparatus, and signal generating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To output a signal for generating an interference wave of the different signals without giving uncomfortable feeling to a subject to be supplied.SOLUTION: The therapeutic apparatus includes: a reference signal generating section (11) for generating a first signal repeated by a predetermined periodicity; a phase adjustment signal generating section (12) for generating a second signal having a phase difference to the first signal; an amplification section (20) for amplifying the first signal and generating the first amplified signal while amplifying the second signal and generating the second amplified signal; and a control section (80) for controlling the phase difference between the first output signal and the second signal.

Description

  The present invention relates to a treatment device and a signal generation method.

2. Description of the Related Art A treatment device is known that is used for treatment in which a plurality of generated low frequency (or medium frequency) signals are applied from different parts of a living body (subject) and an interference wave generated in the living body is applied.
For example, Patent Document 1 discloses a treatment device that treats an affected area by passing a plurality of low-frequency currents having different frequencies into the body and causing interference. Furthermore, it is disclosed that a sine wave necessary for actual treatment is about 30 V (R = 500Ω, I = 60 mA).

JP 2004-267325 A

By the way, according to the technique of Patent Document 1, the frequency of a generated signal is generated by using interference signals (beats) using signals having different frequencies of 4000 Hz and 4002 Hz. The beat generated by interference between signals of 4000 Hz and 4002 Hz has a component of 2 Hz.
Further, if the peak values (voltages) of the two signals are the same, the energy amount of the signal having a higher frequency becomes higher. That is, if the crest values (voltages) of the signals having the same frequency of 4000 Hz and 4002 Hz are the same, the energy amount of the 4002 Hz signal is higher than that of the 4000 Hz signal.
However, since there is a difference in the amount of energy, when a signal with a frequency of 4000 Hz and 4002 Hz is applied to the subject, the subject feels uncomfortable (unbalanced feeling).

  The present invention has been made to solve the above-mentioned problems, and its object is to provide a treatment device and a signal generation method capable of reducing a sense of incongruity felt by a subject by a supplied signal, compared to a case where a signal generating a beat is supplied. Is to provide.

  (1) In order to solve the above problem, the present invention is a treatment device that outputs a plurality of periodic signals to an electrode, and generates a reference signal that repeats at a predetermined periodicity. A phase adjustment signal generation unit that generates a second signal having a phase difference determined with respect to the first signal, the signal having the same cycle as the cycle of the first signal, Amplifying the signal to generate a first amplified signal, amplifying the second signal to generate a second amplified signal, and controlling a phase difference between the first signal to be output and the second signal And a control unit.

  (2) Further, according to the present invention, in the above invention, the control unit generates the first signal and the second signal according to a phase difference selected from a plurality of predetermined phase differences. The phase of the second signal to be switched is switched.

  (3) Further, in the present invention according to the above aspect, the control unit determines a phase difference switching order based on the selected phase difference, and the second phase is generated according to the phase difference switching order. It is characterized by switching.

  (4) In the present invention, the present invention further includes a waveform information storage unit that stores waveform information indicating the waveform of the first signal in the order of reading, and the control unit includes the reference signal generation unit and the phase The reference signal generation unit and the phase adjustment signal generation unit that independently control the position at which reading of the waveform information stored in the waveform information storage unit is started with respect to the adjustment signal generation unit are controlled by the control unit. The stored waveform information is sequentially read from the position at which reading of the waveform information indicated is started.

  (5) Further, according to the present invention, in the above invention, the plurality of signals having periodicity are any waveform selected from periodic signals including a sine wave, a triangular wave, a sawtooth wave, a rectangular wave, and a pulse wave. It is characterized by being.

  (6) Further, the present invention is a signal generation method for a treatment device that outputs a plurality of periodic signals to an electrode, and a reference signal generation process for generating a first signal that repeats with a predetermined periodicity; A phase adjustment signal generating process for generating a second signal having a phase difference determined with respect to the first signal, the signal having the same period as the first signal; and the first signal A first amplified signal, amplifying the second signal to generate a second amplified signal, and applying each to a terminal portion; and outputting the first signal and the second signal And a control process for controlling the phase difference of the signal.

According to the present invention, the treatment device outputs a plurality of signals having periodicity to the electrodes. In the treatment device, the reference signal generation unit generates a first signal that repeats with a predetermined periodicity. The phase adjustment signal generation unit generates a second signal having the same cycle as the cycle of the first signal and having a phase difference determined with respect to the first signal. The amplifying unit amplifies the first signal to generate a first amplified signal, amplifies the second signal, and generates a second amplified signal. The terminal portion is applied with the first amplified signal and the second amplified signal. The control unit controls the phase difference between the first signal and the second signal to be output.
Accordingly, it is possible to provide a treatment device and a signal generation method capable of reducing a sense of incongruity felt by the subject by the supplied signal, compared to a case where a signal that causes a beat is supplied.

It is a block diagram which shows the treatment device by this embodiment. It is a figure which shows the synthetic | combination signal synthesize | combined by the reference signal and phase difference adjustment signal in the embodiment. It is a figure which shows the usage condition of the treatment device in the embodiment. It is a figure which shows the usage condition of the treatment device in the embodiment.

Hereinafter, a treatment device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram showing the treatment device according to the present embodiment.
In this figure, the treatment device 1 includes a voltage generation unit 100 and a terminal unit 300.
The terminal unit 300 includes terminals 31, 32, 33, 34, 35, and 36.
The terminal unit 300 includes each terminal that outputs a signal amplified by the amplification unit 20 and a holding unit that holds the terminal in contact with the subject 6. Terminals 31 and 32, terminals 33 and 34, and terminals 35 and 36 are paired, and a signal is output for each pair. The terminal unit 300 is arranged in contact with the human body and applies the voltage of the output signal to the human body.

The voltage generation unit 100 includes a signal generation unit 10, an amplification unit 20, a storage unit 50, an input / output unit 60, and a control unit 80.
The signal generator 10 includes a reference signal generator 11 and a phase adjustment signal generator 12.
The reference signal generation unit 11 reads the waveform information stored in the storage unit 50 and generates a reference signal as a reference. The reference signal to be generated (first signal) is a signal that repeats at a predetermined cycle, and is, for example, a sine wave having a frequency of 4 kHz (kilohertz).

The phase adjustment signal generation unit 12 reads the waveform information stored in the storage unit 50 and is a signal having the same cycle as the cycle of the reference signal (first signal), and is determined with respect to the reference signal. A phase difference adjustment signal (second signal) having a phase difference, that is, a phase difference adjustment signal obtained by adjusting the phase difference of the reference signal serving as a reference and delaying it is generated. The control unit 80 sets the phase difference (delay amount) of the phase difference adjustment signal whose phase is adjusted with respect to the reference signal, according to the input signal instructed by the user. Alternatively, the phase difference (delay amount) may be changed according to a predetermined switching cycle.
In the phase difference (delay amount) control in the phase adjustment signal generation unit 12, the phase difference (delay amount) can be changed by changing the reading start position of the waveform information stored in the storage unit 50.
As shown in the above description, the phase difference control and the delay amount control are equivalent.
Further, the reference signal generation unit 11 sequentially generates the reference signal by sequentially reading the stored waveform information from the position where the reading of the waveform information stored in the storage unit 50 instructed by the control unit 80 is started. . The phase adjustment signal generation unit 12 generates a phase difference adjustment signal by sequentially reading the stored waveform information from the position where the reading of the waveform information stored in the storage unit 50 instructed by the control unit 80 is started. To do.

The amplification unit 20 includes amplifiers 21, 22, and 23.
The amplifying unit 20 amplifies each input signal and outputs the amplified signal to the terminal unit 300. The amplifier 21 amplifies the input reference signal and outputs it to the terminals 31 and 32. The amplifying unit 22 amplifies the input phase difference adjustment signal and outputs the amplified signal to terminals 33 and 34. The amplifying unit 23 amplifies the input phase difference adjustment signal and outputs the amplified signal to terminals 35 and 36. Note that the phase difference adjustment signals input to the amplifying unit 22 and the amplifying unit 23 may be the same signal, or may be signals having different phase differences from the reference signal.

The storage unit 50 stores the waveform information used for signal generation in the signal generation unit 10 in the order of reading. The plurality of signals having periodicity stored as the waveform information include a sine wave, a triangular wave, a sawtooth wave, a rectangular wave, and a pulse wave. As the waveform information, one of the waveforms selected from the stored periodic signals is read out.
The input / output unit 60 detects a user operation, and generates operation input information corresponding to the detected operation. In addition, the input / output unit 60 displays information on the display unit in accordance with display processing control by the control unit 80.

The control unit 80 controls the reference signal generation unit 11 of the signal generation unit 10 to generate a reference signal, and controls the phase adjustment signal generation unit 12 of the signal generation unit 10 according to the determined delay amount. A phase difference adjustment signal having a phase adjusted with respect to the reference signal is generated.
The control unit 80 switches the phase of the generated phase difference adjustment signal in accordance with the phase difference selected from a plurality of predetermined phase differences in the phase relationship between the reference signal and the phase difference adjustment signal.
In addition, the control unit 80 can determine the switching order of the phase differences based on the selected phase difference, and can switch the second phase generated according to the switching order of the phase differences.
The control unit 80 controls the reference signal generation unit 11 and the phase adjustment signal generation unit 12 independently of each other at the position where reading of the waveform information stored in the storage unit 50 is started.

Further, the control unit 80 controls the amplification factor of the amplification unit 20 to amplify at a desired amplification factor, and shuts off the output of the amplified signal.
The control unit 80 determines the user's operation input based on the operation input information generated by the input / output unit 60 according to the user's operation. The control unit 80 supplies the generated display information to the input / output unit 60 for display. The control unit 80 determines the type of signal pattern to be generated, the voltage, the period, and the delay amount from the reference signal to the phase difference adjustment signal (the phase difference between the reference signal and the phase difference adjustment signal) according to the operation input information corresponding to the user operation. Control) settings.

(Combination of reference signal and phase difference adjustment signal)
The synthesis of the reference signal and the phase difference adjustment signal will be described with reference to FIG.
FIG. 2 is a diagram illustrating a synthesized signal synthesized by the reference signal and the phase difference adjustment signal.
In this figure, the horizontal axis indicates time, and the vertical axis indicates the intensity (voltage) of the output signal. In each waveform shown in this figure, the waveform Sref indicates the waveform of the reference signal, and the waveform Sdel indicates the waveform of the phase difference adjustment signal.
FIG. 2A shows a waveform for one period when there is no delay (the phase difference is 0 degree).
FIG. 2B shows a waveform for one period when the delay amount is t1 (phase difference is 45 degrees).
FIG. 2C shows a waveform for one period when the delay amount is t2 (phase difference is 90 degrees).
FIG. 2D shows a waveform for one period when the delay amount is t3 (phase difference is 135 degrees).
FIG. 2E shows a waveform for one cycle when the delay amount is t4 (phase difference is 180 degrees).

Thus, by controlling the phase difference (delay amount) of two signals having the same waveform, a waveform of a signal different from the original waveform can be generated. Since the original waveform has the same frequency, the two signals are combined to generate no beat, so that periodic fluctuations caused by beat can be suppressed.
Further, the shape of the synthesized waveform can be switched by sequentially switching the phase difference (delay amount). Thus, the synthesized waveform can be changed by simply controlling the switching of the phase difference (delay amount).

(Usage of treatment device)
Next, with reference to FIG. 3 and FIG. 4, the usage pattern of the treatment device in this embodiment is demonstrated.
In this figure, a terminal unit 300 (terminals 31, 32, 33, 34, 35, 36) is connected to the main body of the treatment device 1.
Each terminal of the terminal unit 300 is arranged at each place of the subject 6 and is held so that the electrode contacts the subject 6.
FIG. 3 is a diagram showing a usage pattern of the treatment device.
It is a figure which shows the case where a signal is made to act on the upper body back surface of the test subject 6 shown by FIG.
For example, the electrode of the terminal unit 300 is in contact with the subject 6, the terminal 31 is placed on the right shoulder, the terminal 32 is placed on the left waist, the terminal 33 is placed on the left shoulder, and the terminal 34 is placed on the right waist.
The generated signal is given to the subject 6 while the terminal unit 300 is kept in this connected state. That is, a first amplified signal based on the reference signal is given between the right shoulder terminal 31 and the left waist terminal 32, and based on the phase difference adjustment signal between the left shoulder terminal 33 and the right waist terminal 34. A second amplified signal is provided.
In this way, by arranging the lines connecting the corresponding terminals so as to intersect with each other, the signal generated by the treatment device 1 can be efficiently transmitted within a range surrounded by a quadrilateral having one terminal at the apex. Can act.
Note that the terminals 35 and 36 may also be arranged at other locations in addition to the above arrangement state.

FIG. 4 is a diagram showing a usage pattern of the treatment device.
It is a figure which shows the case where a signal is made to act on the leg of the test subject 6 shown by FIG.
For example, the electrode of the terminal unit 300 is in contact with the subject 6, the terminal 31 is on the right ankle, the terminal 32 is on the left ankle, the terminal 33 is on the right hip, the terminal 34 is on the right ankle, and the terminal 35 is on the left hip. The terminals 36 are respectively arranged on the left ankle.
The generated signal is given to the subject 6 while the terminal unit 300 is kept in this connected state. That is, a first amplification signal based on the reference signal is provided between the right ankle terminal 31 and the left ankle terminal 32, and a phase difference adjustment signal is generated between the right waist terminal 33 and the right ankle terminal 34. A second amplified signal based on the phase difference adjustment signal is provided between the left waist terminal 35 and the left ankle terminal 36.
By arrange | positioning in this way, the signal produced | generated by the treatment device 1 can be made to act efficiently on both lower limbs.

(Signal generation processing procedure)
The treatment device 1 reads the waveform information stored in the storage unit 50 by the following procedure and generates an output signal.

(Procedure 1) The user selects the waveform information generated by the treatment device 1 in accordance with the information displayed on the display unit of the input / output unit 60 according to the control of the display process by the control unit 80.
The input / output unit 60 detects a user operation, and generates operation input information corresponding to the detected operation. The control unit 80 determines the user's operation input based on the operation input information generated by the input / output unit 60 according to the user's operation.

  (Procedure 2) The control unit 80 determines the type, frequency, and phase difference adjustment amount of the signal waveform to be generated, which are predetermined as information associated with the determination result, from the determination result of the user operation input.

(Procedure 3) The control unit 80 determines the waveform information stored in the storage unit 50 corresponding to the determined type of the signal waveform to be generated, and reads the waveform information in order to read the waveform information. Determine the initial values of the address, final address, and read address.
The control unit 80 sets the read address of the reference signal as the head address. The read address of the phase difference adjustment signal is a value obtained by adding an offset amount corresponding to the phase difference adjustment amount of the signal waveform to be generated to the head address. The control unit 80 supplies the determined start address, final address, initial value of the read address, and the frequency of the signal waveform to be generated to the signal generation unit 10.

  (Procedure 4) The control unit 80 sets the amplification factor of the amplifying unit 20 in accordance with the determined type of signal waveform to be generated, and makes the output from the amplifying unit 20 ready. This setting determines the amplitude of the output signal.

(Procedure 5) The reference signal generator 11 of the signal generator 10 reads the read address of the reference signal, generates a signal corresponding to the read waveform information, and outputs the signal to the amplifier 21. The phase difference adjustment signal generation unit 12 of the signal generation unit 10 reads the read address of the base phase difference adjustment signal, generates a signal corresponding to the read waveform information, and outputs the signal to the amplifiers 22 and 23.
The reference signal generator 11 and the phase difference adjustment signal generator 12 add 1 to the value of each read address and store it at the next address for each read time interval corresponding to the frequency of the signal waveform to be generated. Read information.
However, when the read address matches the final address and the information of the address is read, the read address is converted to the head address, and the process of reading in the order of addresses is continued.

  With the above procedure, the waveform information stored in the storage unit 50 can be read out as a signal having continuous periodicity.

(Phase difference switching control)
By periodically switching the phase difference, the synthesized signal synthesized in the body of the subject 6 can be switched periodically, and it can act as a periodic signal according to the switching cycle.
An example will be described in which the control unit 80 changes the phase difference adjustment amount in increments of 45 degrees.
The control unit 80 switches the phase difference adjustment amount in the order of 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 270 degrees, 315 degrees, and 360 degrees (0 degrees). If the switching interval for switching the phase difference adjustment amount is 0.1 seconds, a signal that changes with a period of 0.8 seconds can be generated.
This switching time can be designated by the user using the input / output unit 60.
When the control unit 80 detects the change input of the switching time by the input / output unit 60, the control unit 80 controls the signal generation unit 10 in response to the interrupt processing by the timer function provided therein according to the input switching time, The phase adjustment amount of the adjustment signal generation unit 12 is sequentially switched.
In this way, by periodically switching the phase difference and periodically switching the synthesized signal synthesized in the body of the subject 6, the subject 6 can feel like gently rubbing.

According to the embodiment described above, the energy amount of the signal synthesized based on the signal having the same frequency with the phase difference acts on the subject 6. In the synthesized signal, the “beat” does not occur because the frequency is the same.
That is, by using the treatment device 1 shown in the present embodiment, it is possible to reduce a sense of incongruity felt by the subject by the supplied signal, compared to the case where a signal that causes a beat is supplied.
In addition, it is possible to generate a hypoallergenic signal suitable for a therapeutic application that can reduce inflammation occurring in the subject 6.

In addition, this invention is not limited to said embodiment, It can change in the range which does not deviate from the meaning of this invention.
For example, the waveform shown in FIG. 2 is a sine wave, but is not limited to a sine wave as long as the signal has periodicity. For example, any of periodic signals including a triangular wave, a sawtooth wave, a rectangular wave, and a pulse wave can be used. Waveforms can be applied.
In the present embodiment, the number of signals generated by the treatment device 1, the number of terminals of the terminal unit 300, the arrangement of the terminal unit 300 provided in the subject 6, and the like are shown as examples and are not limited. Absent.
Further, by providing a minute current mode in which the current of the signal to be output is reduced to about 1 mA and limiting the current by the minute current mode, it is possible to further reduce the sense of discomfort felt by the subject 6.
In addition, the treatment device 1 may include a switching unit that switches between the minute current mode and the normal mode that outputs a normal current value up to the prior art.

  In addition, the above-mentioned treatment device 1 has a computer system inside. Each process performed by the treatment device 1 is stored in a computer-readable recording medium in the form of a program, and the above-described processing is performed by the computer system reading and executing the program. The computer system here includes a CPU, various memories, an OS, and hardware such as peripheral devices.

1 ... treatment device,
100 ... Voltage generator,
DESCRIPTION OF SYMBOLS 10 ... Signal generation part, 11 ... Reference signal generation part, 12 ... Phase adjustment signal generation part,
20 ... amplifier, 21, 22, 23 ... amplifier,
50 ... Storage unit, 60 ... Input / output unit, 80 ... Control unit,
300 ... terminal part, 31, 32, 33, 34, 35, 36 ... terminal

Claims (6)

A treatment device that outputs a plurality of periodic signals to an electrode,
A reference signal generator for generating a first signal that repeats with a predetermined periodicity;
A phase adjustment signal generator that generates a second signal having the same period as that of the first signal and having a phase difference determined with respect to the first signal;
An amplifying unit for amplifying the first signal to generate a first amplified signal, amplifying the second signal to generate a second amplified signal;
A control unit for controlling a phase difference between the first signal to be output and the second signal;
A treatment device comprising: The controller is
The phase of the second signal to be generated is switched according to a phase difference selected from a plurality of predetermined phase differences between the first signal and the second signal. The treatment device described. The controller is
The treatment device according to claim 2, wherein a switching order of phase differences is determined based on the selected phase difference, and the second phase generated is switched according to the switching order of the phase differences. A waveform information storage unit for storing waveform information indicating the waveform of the first signal in the order of reading;
The controller is
The reference signal generation unit and the phase adjustment signal generation unit are controlled independently from each other at the position where waveform information stored in the waveform information storage unit is read out. The reference signal generation unit and the phase adjustment signal The generator is
The therapeutic device according to any one of claims 1 to 3, wherein the stored waveform information is sequentially read from a position at which reading of the waveform information indicated by the control unit is started. . A plurality of signals having periodicity are
The treatment according to any one of claims 1 to 4, wherein the waveform is any one selected from periodic signals including a sine wave, a triangular wave, a sawtooth wave, a rectangular wave, and a pulse wave. vessel. A method for generating a signal of a treatment device that outputs a plurality of periodic signals to an electrode,
A reference signal generation process for generating a first signal that repeats with a predetermined periodicity;
A phase adjustment signal generating step of generating a second signal having the same period as that of the first signal and having a phase difference determined with respect to the first signal;
An amplification process of amplifying the first signal to generate a first amplified signal, amplifying the second signal to generate a second amplified signal, and applying each to a terminal unit;
A control process for controlling a phase difference between the first signal to be output and the second signal;
A signal generation method comprising:

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