JPH01146563A - Biostimulating apparatus - Google Patents

Abstract

PURPOSE:To disperse charges, to prevent the voltage of a power source from being drastically lowered and thus to prevent deterioration of in operability of display, by controlling the display with a control means to stagger a period for outputting an intermittent pulse and a period for actuating the display. CONSTITUTION:After a delay time period tau+DELTAt has elapsed since an OR gate 29 outputs a pulse, MM8 42 outputs a pulse to the base of a transistor 45 of a display control means 41, thus turning the transistor 45 on and lighting a light emitting diode 46. The light emitting diode 46 is flickered in the same cycle as that of an intermittent pulse, but the period for emitting the diode 45 is delayed by tau+DELTAt with respect to the period for outputting any intermittent pulse; that is, both the periods are not overlapped. Since charges are not concentrated in a certain period but are dispersed, the voltage of a power source, e.g., a battery, is not drastically lowered, thus preventing luminance of the light emitting diode 46 from being over-lowered.

Description

[Detailed Description of the Invention] (Objective of the Invention) (Industrial Application Field) The present invention relates to a low-frequency device that uses a conductor with built-in electrodes that is directly attached to the human body to pass a low-frequency pulse current and perform treatment by stimulation. The present invention relates to a biological stimulation device such as a treatment device, and particularly to a control means for a display means that performs a display corresponding to the cycle of intermittent pulses output to a human body.

(Prior Art) A biological stimulator that outputs intermittent pulses to a human body in a variable period using a battery or the like as a power source is provided with a display means, such as a light emitting diode, that performs an intermittent display corresponding to the cycle 11 of the intermittent pulse. Conventionally, the intermittent pulse output circuit and the light emitting diode control means have been configured so that the period during which the intermittent pulse is generated and the light emitting period of the light emitting diode almost match.

(Problems to be solved by the invention) However, in the conventional biostimulator as described above,
Since the generation period of the intermittent pulse and the light emitting period of the light emitting diode almost match, the load (current) changes extremely and is concentrated at one time. Therefore, when the load is concentrated, 1ift decreases, causing problems such as insufficient luminance of the light emitting diode.

The present invention aims to solve these problems, and aims to provide a biostimulator that can prevent the load from concentrating on a single period of time, and therefore does not cause a decrease in the operability of the display means. This is the purpose.

[Structure of the invention]

(Means for Solving the Problems) The biostimulation device of the present invention includes an output circuit that outputs an intermittent pulse with a variable period to a human body, a light emitting diode that performs an intermittent display corresponding to the period of the intermittent pulse, etc. The apparatus further comprises a control means for controlling the output circuit or the display means to shift the output period of the intermittent pulse from the output circuit and the operation period of the display means.

(Function) In the biological stimulation device of the present invention, the output circuit outputs intermittent pulses to the human body in a variable period, and the display means performs intermittent display corresponding to the period of the intermittent pulses. At that time, the t4al1 means for controlling the output circuit or the display means shifts the intermittent pulse output 1flra from the output circuit and the operating period of the display means so that the load does not concentrate at -1 and 7 m, and This prevents a large drop in the electric voltage, thereby preventing a decline in the operability of the display means.

(Example) Hereinafter, the configuration of the first example of the biostimulator of the present invention will be explained as follows.
This will be explained based on the figure and FIG.

In FIG. 1, 11 is a changeover operation switch, and this switch 11 has an operator 11a connected to one pole of a power source such as a battery, and this operator 11a is selectively connected. For example, four terminals 11b, 11
c, 11d, and lle, and the cholera terminals 11b, 11c, 11d, and 11e are connected to one pole of the power source via resistors 12.13 and 14.15, respectively.

Further, in FIG. 1, 16 is a waveform control means. Next, the configuration of this control means 16 will be explained.

The output terminal of the variable oscillator (O20) 17 is connected to the input terminal of a monostable multivibrator (MfVh) Hl.

This MM118 outputs a pulse with a constant pulse width τ in response to a trigger input input from 03C17 at a period T. The output terminal of the MM11B is A
connected to one input terminal of the ND gate 19, and this AND
The output terminal of gate 19 is connected to the input terminal of OR gate 20. Further, the other input terminal of the AND gate 19 is connected to the terminal 11b of the switch 11.

The output terminal of the 08C17 is also connected to the input terminal of a monostable multivibrator (MM2>21).As shown in Fig. 4, this MM221 has a pulse width of τ/2 in response to the trigger input. The output terminal of this MM221 is connected to the 1 of the AND gate 22.
The output terminal of this AND gate 22 is connected to the input terminal of the OR gate 20. Further, the output end of the MM 221 is connected to the input end of a monostable multivibrator (MMa) 23. This M
As shown in Figure 4, M323 has τ for the trigger input.
After a delay of /2, a pulse having a pulse width Δt, for example τ/2, is output. Furthermore, the output end of this MM323 is connected to the input end of a monostable multivibrator (MM4) 24. As shown in FIG. 4, this MMa 24 outputs a pulse having a pulse width τ/2 after a delay of Δt with respect to the trigger input.

The output end of this MMa24 is connected to one input end of an AND gate 25, and the output end of this AND gate 25 is connected to the input end of an OR gate 26. Also,
The terminals 11c of the switch 11 are connected to the other input terminals of the AND gates 22 and 25, respectively.

Furthermore, the output terminal of the 08C17 is a flip-flop (F
F) is connected to the input terminal of 27. This FF2
7 corresponds to the trigger input from 03C17, as shown in FIG.
It is repeated at T. The output terminal of this FF 27 is connected to the input terminal of a monostable multivibrator (MMs) 28. As shown in FIG. 5, this MMs 28 outputs a pulse having a pulse width τ in response to a trigger input from the FF 27. And this MMs28
The output terminal of is connected to one input terminal of an AND gate 29, and the output terminal of this AND gate 29 is connected to the above-mentioned OR gate 20.
It is fully connected. The output terminal of the FF 27 is also connected to the input terminal of a monostable multivibrator (MM6) 31 via a NOVOR gate 20. This MMe 31 outputs a pulse having a pulse width τ in response to a trigger input from the NOT gate 30, as shown in FIG. The output end of this MMs31 is connected to one input end of the AND gate 31, and this A
The output terminal of the ND gate 31 is connected to the input terminal of the OR gate 26.

Furthermore, the terminals 11d of the switch 11 are connected to the other input terminals of the AND gates 29 and 32, respectively.

Further, a pair of output terminals of the burst generation circuit 33 are respectively connected to one input terminal of an AND gate 34.35, and the output terminals of these AND gates 34.35 are connected to both the output terminals of the
They are connected to the input ends of R gates 20 and 26, respectively. Further, the terminals 11e of the switch 11 are connected to the other input terminals of the AND gates 34 and 35, respectively.

Furthermore, in FIG. 1, 41 is a display control means.

Next, the configuration of this control means 41 will be explained.

The output terminal of one of the OR gates 20 is connected to the input terminal of a monostable multivibrator (MM7) 42.

This MM742 outputs a delayed pulse of, for example, +At in response to a trigger input from the OR gate 20. The output end of this MM742 is connected to the input end of a monostable multivibrator (MMn) 43. This MMa 43 outputs a pulse with an appropriate pulse width in response to a trigger input. And this MM
The output terminal of a43 is connected to the base of a transistor 45 via a resistor 44.

A light emitting diode 46 and a resistor 4 are connected to the collector of the transistor 45 and the power source as display means.
7 are connected in series, and the emitter of the transistor 45 is connected to one pole of the power supply.

FIG. 2 shows the output passage 51. Next, the configuration of this output path 51 will be explained.

The output ends of both OR gates 20.26 are connected to the base of a transistor 54.55 via a resistor 52.53, respectively. And these transistors 54.5
5 has a collector connected to both ends of the primary coil 56a of the step-up transformer 56, and an emitter connected to one pole of the power supply.

Further, the middle point of the primary coil 56a is connected to a power source. Furthermore, diodes 57 and 58 are connected between the center point and both ends of the primary coil 56a. On the other hand, the secondary coil 56 of the step-up transformer 56
A variable resistor 59 is connected between both ends of b. The slider of this variable resistor 59 is connected to one of a pair of output terminals 60 to the human body, and the other output terminal 6G is connected to one end of the secondary coil 56b.

Next, the operation of the above embodiment will be explained.

When using the biostimulator, a pair of conductors (not shown) each having a built-in electrode are connected to the output terminal 60, and these conductors are directly attached to the human body.

Then, operate the changeover operation switch 11 to
1a is connected to terminal 11b, AND gate 2
2.25.29.32.34.35 output is always LOW
Therefore, the output of the OR gate 26 is always O.
It becomes W. On the other hand, the AND gate 19 outputs a pulse with the same period T and the same width τ as the pulse with the pulse width τ is inputted from MfVhlB at the period T determined by 08C17, and therefore the OR gate 26 also outputs the pulse with the same width τ at the same period T. A pulse with the same width τ is output at T. In response to the output of this pulse, the transistor 54 is turned on, so that a current flows upwardly in the figure to the upper side of the primary coil 56a of the output circuit 56, and as shown in FIG. Coil 56b
An intermittent DC pulse with a width τ induced in is output to the human body with a period mT.

In addition, when the switch 11 is operated and the operator 11a is connected to the terminal 11C, a pulse with a pulse width τ/2 is output from the MM 221 at a period ■, and an OR gate is output via the AND gate 22. From 20, pulses of the same width τ/2 are output at the same period ■. On the other hand, as the output of this pulse is extended by τ/2+A t″i1 and a pulse with a width τ/2 is output from the MM424 at a circumference of 111T,
Pulses with the same period T and the same width τ/2 are output from the OR gate 26 via the AND gate 25. When a pulse is output from the OR gate 20, a positive pulse is output to the human body, but when a pulse is output from the OR gate 26, the transistor 55 is turned on, and the lower side of the primary coil 56a as shown in the figure is turned on. Since the current flows downward in the figure, a negative pulse is output to the human body. Therefore, in Figure 3 (Q
As shown in , an intermittent AC pulse consisting of a positive pulse with a width τ/2 and a negative pulse with a width τ/2 following this pulse after a time At is output to the human body.

Furthermore, when the operator 11a of the switch 11 is connected to the terminal 11d, the 08C1
In response to the 2i (i: integer) trigger pulse of 7,
As the MMs 28 outputs a pulse with a pulse width τ with a period of 2T, a pulse with the same width τ with a period of 2T is output from the OR gate 20 via the AND gate 29. On the other hand, by further applying NOTOR gate 20 from FF 27, in response to the 21+1st trigger pulse of oSC 17, a pulse of width τ with a period of 112 T is output from MM 631, and via AND gate 32,
Two pulses of width τ are output from the OR gate 26 at the same period. Therefore, as shown in FIG. 30, positive pulses and negative pulses of the same width τ are alternately output to the human body with a period T. This is an alternating intermittent pulse.

By the way, humans feel a strong stimulus to one pole of a pair of conductors, so when an intermittent DC pulse is output, a strong stimulus continues to be felt to one conductor, and when an intermittent AC pulse is output, , when both conductors feel strong stimulation at the same time, and when alternating intermittent pulses are output, strong stimulation will be felt alternately in both conductors.

In this way, the user can select his/her favorite waveform. Furthermore, by operating 08C17 to change its oscillation period T, it is possible to change the period T of the intermittent pulses that are output. Furthermore, by operating the variable resistor 59, the amplitude a of the intermittent pulse to be output can be changed. That is, the speed and intensity of stimulation can also be adjusted.

Incidentally, the period of the DC intermittent pulse, AC intermittent pulse, and alternating intermittent pulse is determined by the same 03C17, so no matter which period the switch 11 is operated to change the waveform, the period of the intermittent pulse will not change. That is, even if the waveform is changed, the sensation of the speed of stimulation remains the same, and the usability is good.

Further, the width of each pulse of the DC intermittent pulse and the alternating intermittent pulse is set to the same τ by MM118, MMs28, and MMs31, while the width of each positive and negative pulse of the AC intermittent pulse is set to τ/2 by MM22L and MM424, respectively.
Therefore, even if the waveform is changed, the total energy output of one intermittent pulse corresponding to the parallel hatched portion in FIG. 4 remains the same. Therefore, even if the waveform is changed, the perceived strength of the stimulation does not change much, and the usability is good.

Further, when the switch 11 is operated and the operator 11a is connected to the terminal 11e, the burst generating circuit 33 is connected to the OR gate 20.2 via the AND gate 34.35.
6, pulses are output continuously and alternately at fixed FR intervals, for example, a burst pulse is output to the human body in which a continuous 30 Hz AC pulse for 1 second and a rest period of 1 second are alternately repeated. .

Further, as shown in FIG. 6(a), after a delay time of τ→-A after the pulse is output from the OR gate 29, the transistor 4 of the display control means 41 is transferred from the MMa 42.
A pulse as shown in FIG.
6 lights up. In this way, the light emitting diode 46 blinks at the same period as the period of the intermittent pulse, but the light emitting period of the light emitting diode 56 is τ+At with respect to the generation period of the intermittent pulse.
Since they are delayed, the generation period of any of the three types of intermittent pulses does not overlap with the light emission period of the light emitting diode 46.

Therefore, the load is not concentrated at one time and is distributed, so power sources such as batteries do not drop down excessively.
The luminance of light emitted from the light emitting diode 46 does not decrease.

Next, a second embodiment of the present invention will be described based on FIGS. 7 to 11.

11 shown in FIG. 7 is a power supply circuit, and this power supply circuit 71 is
A battery 72, a power switch 73, and a diode 74 are connected in series, with the anode of the switch 73 and the diode 74 serving as a first output terminal 75, and the cathode of the diode 14 serving as a second output terminal 76. It becomes. Incidentally, capacitors 77 and 78 are connected between the first output terminal 75 and the second output terminal 76 and one pole of the battery 72.
．． 79 are connected to each other.

In FIG. 8, reference numeral 81 indicates a microcomputer (for example, NEC Corporation's μPD7564CS or μPD7
5P64, etc.), the second output terminal 76 of the power supply circuit 71 is connected to the power input terminal 81a of this microcomputer 81.
is connected, and one pole of the battery 72 is connected to the ground terminal 81b. Further, an oscillator 82 and a resistor 83 are connected in series between oscillator input terminals 81c and 81d of the microcomputer 81.

Incidentally, capacitors 84 and 85 are connected between both ends of the oscillator 82 and the - pole of the battery 72, respectively.

Further, the boat 81e of the microcomputer 81
, 81f, 81g.

A switch 86.8 is connected between 8th and one pole of the battery 72.
7°88, 89 and resistors 90.91.92.93 are connected in series, respectively. Further, the boats 81i, 81j, 81k of the microcomputer 81
, 81J! and the first output terminal 75 of the power supply circuit 71, there are light emitting diodes 94, 95, 96, . . . as display means.
97 are connected through a common resistor 98, respectively. Furthermore, the boat 81 of the microcomputer 81
m is connected to the - terminal of the battery 72, and a resistor 99 is connected between the boat 81m and the ball l-81n. Note that this resistor 99 is provided to allow the microcomputer 81 to distinguish between models with different control methods. In addition, this microcomputer 81
Nothing is connected to the boat 810.

Further, a reset ICl0I connected between the second output terminal 76 of the power supply circuit 71 and the - pole of the battery 72 is connected to the reset terminal 81p of the microcomputer 81. Furthermore, a resistor 102 connected between the second output terminal 76 of the power supply circuit 71 and one pole of the battery 72;
A time constant circuit consisting of a diode 103 and a capacitor 104 is connected to the boat 81 of the microcomputer 81.
connected to q. Note that this time constant circuit is for determining whether the reset signal is the one at power-on.

FIG. 9 shows an output circuit 111, which includes a step-up transformer 112.

The center tap of the primary coil 112a of this transformer 112 is connected to the power supply circuit 71 via a diode 113.
is connected to the first output terminal 75 of. In addition, a diode 114 is connected between both ends of the primary coil 112a and the center tap.
．． 115 are connected to each other. Furthermore, both ends of the primary coil 112a are Darlington-connected transistors 116. 117. 118°11
9 is connected to the collector of one transistor.
118. The emitter of 119 is connected to one pole of the battery 72. In addition, the other transistor 116, 1
The base of 17 is connected to the boat 81r of the microcomputer 81 through capacitors 120 and 121, respectively.
, connected to 81S. In addition, the capacitor 12
0. 121 and transistor 116. The midpoints with diodes 122 . 123, the above is connected to one pole of the pond 72.

On the other hand, a variable resistor 124 is connected between both ends of the secondary coil 112b of the transformer 112, and a slider of this variable resistor 124 is connected to one of the output terminals 125. Note that the power switch 73 is incorporated into the variable resistor 124. Further, one end of the secondary coil 112b is connected to a diode 126. 127°128, 12
It is connected to the other output terminal 125 via a high impedance control circuit consisting of a bridge No. 9 and a transistor 130.

Furthermore, the boat 81 of the microcomputer 81 [
The emitter of the transistor 132 whose base is connected to the boats 81r, 81s and the capacitor 1
20. A resistor 13 is connected to the intermediate point of the transistor 121 and the base of the transistor 132 of the high impedance circuit.
3. 134. 135.

The collector of the transistor 132 is connected to the second output terminal 76 of the power supply circuit 71, and a resistor 136 is connected between the collector and the base.

10 and 11 show a case-like main body 141 containing the power supply circuit 71, microcomputer 81, output circuit 111, etc., and a rectangular annular shape on the front upper part of the main body 141 made of plastic or the like. A rib 142 is formed to protrude.

The switch 8 is located within this rib 142.
6.87.88.89 operation switch button 143°1
44, 145. 146 are provided to slightly protrude from the front surface of the main body 141, but these switch buttons 14
3゜144, 145. 146 protrudes from the front surface of the main body 141, and the rib 142 protrudes from the front surface of the main body 141 m.
It's smaller. Further, the switch button 143.
The light emitting diodes 94, 95, 96 are located on the front surface of the main body 141 slightly above 144° 145, 146.
．． 97 are arranged. Furthermore, the variable resistor 124
A portion of a dial 147 fixed to a rotatable slider protrudes from the upper surface of the main body 141. Further, a display window 149 for a display 148 that interlocks with the dial 147 is formed at the upper end of the front surface of the main body 141 .

Further, although not shown, the output terminal 125 is provided on the upper surface of the main body 141.

Then, in the biostimulator of the second embodiment,
A microcomputer 81 controls the waveform, display, etc. In other words, this microcomputer 81
By outputting drive pulses from the boats 81r and 813, the back pressure transformer 11 of the output circuit 111
The same DC intermittent pulses, AC intermittent pulses, alternating intermittent pulses, and burst pulses as in the first embodiment are induced in the second secondary coil 112b and output to the human body.

Note that the boat 81t outputs a pulse that is the logical sum of the outputs from the boats 81r and 81s, and the high impedance control circuit on the secondary side of the step-up transformer 112 enters a low impedance state only when the pulse is output to the human body. become.

The switches 86, 87, 88, and 89 are all normally open types, but the switch 88 is a changeover operation switch for changing the waveform, and each time the switch 88 is operated, it changes between an intermittent DC pulse, an intermittent AC pulse, and an intermittent pulse. Pulse and burst pulse are switched sequentially. Further, the switch 86 is a deceleration switch, and each time the switch 86 is operated, the period of the intermittent pulse increases stepwise. Further, the switch 87 is a speed increasing switch, and each time the switch 87 is operated, the period of the intermittent pulse decreases in stages. Further, switch 89 is used to set a timer that stops pulse generation after a certain period of time.

Further, the light emitting diodes 94,95,96,97 correspond to the direct 11ffi intermittent pulse, the alternating current intermittent pulse, the alternating intermittent pulse, and the burst pulse, respectively, and the light emitting diodes 94,95,96,97 correspond to the waveforms being generated.
．． 96.97 lights up. In particular, the light emitting diodes 94, 95, and 96 corresponding to the intermittent pulse blink at the same period as the intermittent pulse.

In this second embodiment, as in the first embodiment, the period does not change even if the waveform of the intermittent pulse is changed, and even if the waveform of the intermittent pulse is changed, the period of one intermittent pulse is The total energy level should be approximately the same, and the intermittent pulse generation period and light emitting diode 9 should be
4.95.96 can be easily realized by setting the software in the microcomputer 81.

〔Effect of the invention〕

According to the present invention, the control means controls the intermittent pulse output circuit/circuit or the electrical display means that performs an intermittent display corresponding to the period of the intermittent pulse, so as to determine the output period of the intermittent pulse and the operation of the display means. Since the periods are staggered, the load is distributed and is not concentrated at one time. Therefore, the power supply voltage does not drop significantly, and a decrease in the operability of the display means can be prevented.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the biological stimulation device of the present invention; Fig. 2 is a circuit diagram of the control means section; Fig. 2 is a circuit diagram of the output circuit; Fig. 3 is a timing chart of output pulses to the human body; Fourth
The figure is a timing chart showing the effect of generating intermittent AC pulses as above, Figure 5 is a timing chart showing the effect of generating alternating intermittent pulses as above, and Figure 6 is a diagram showing the relationship between output pulses to the human body and light emission of light emitting diodes as above. A timing chart, FIG. 7 is a circuit diagram of a power supply circuit showing a second embodiment of the present invention, FIG. 8 is a circuit diagram of the same control means section, and FIG. 9 is a circuit diagram of the same control means section.
A circuit diagram of the F output circuit, FIG. 10 is a front view of the main body, and FIG. 11 is a side view of the main body. 16, 41... Control means, 46... Light emitting diode as display means, 51... Output circuit, 81... Microcomputer as control means, 94.95.96... Light emitting diode as display means, 111.・Output circuit. 1 principal Δ to the source - time

Claims (1)

[Claims] (1) An output circuit that outputs an intermittent pulse with a variable period to the human body, an electrical display means that performs an intermittent display corresponding to the period of the intermittent pulse, and an output circuit that controls the output circuit or display means and outputs the output. A biological stimulation device comprising: a control means for shifting an output period of intermittent pulses from a circuit and an operation period of the display means.