JPH03159659A - Wireless low frequency treatment device - Google Patents

Abstract

PURPOSE:To display the consumption degree of a battery by mounting a display means displaying the kind of data to be transmitted and a limiting means lowering the brightness of the display means when the voltage of the battery lowers to the min. voltage making a transmission means operable to the transmission means. CONSTITUTION:A main body 100 is constituted of a key switch input part 1, a microcomputer 20 processing various data inputted from the input part 1, a converter circuit 21 converting the data signal outputted from the microcomputer 20 to an electromagnetic wave and a conversion output part 2 equipped with a display part 22 displaying which mode is set. The microcomputer 20 is operated corresponding to the pushed key switch among key switches 1a-1c and the respective LEDs 22a-22c of the display part 22 emit light by a predetermined current. When the voltage of a battery B becomes the min. dependable voltage of the microcomputer 20, that is, the min. voltage capables of operating the microcomputer 20, the current flowing to the LEDs 22a-22c is limited by a diode 22e and the brightnesses of the LEDs 22a-22c suddenly lower.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention is applicable to conductors attached to living bodies. The present invention relates to a wireless low frequency treatment device that can perform desired low frequency treatment by transmitting information for low frequency treatment using magnetic waves.

(b) Conventional technology Conventionally, this type of wireless low frequency treatment device was developed in Japanese Patent Application Laid-Open No.
There is known a device disclosed in Japanese Patent No. 3-317164 which transmits information signals for treatment from an input means to a skin adhesive conductor (hereinafter referred to as a conductor) by F'M radio.

(C) Problems to be Solved by the Invention Generally, when information signals are transmitted wirelessly between the human power means and the conductor instead of using lead wires, a power source such as a battery is required for both the input means and the conductor. . For example, if the battery of the human power means or the conductor was exhausted, the transmission of a single word of information could fail.

This invention has been made in consideration of the above circumstances, and it is an object of the present invention to provide a wireless low frequency treatment device that can display the degree of battery consumption using a display means that displays input information. .

(2) s! This invention provides an input means for inputting various information regarding low frequency therapy, a transmitting means for transmitting the information inputted by the input means, and supplying power to the input means and the transmitting means. a main body comprising a battery, a receiving means for receiving information transmitted from the transmitting means, a pulse generating means for generating a low frequency pulse corresponding to the information received by the receiving means, and a pulse generating means ζ. A wireless low frequency treatment device comprising a conductor section comprising pulse transmission means for transmitting generated low frequency pulses to a living body, the main body comprising a display means for displaying the type of information transmitted by the transmission means; , further comprising a limiting means for controlling the current supplied to the display means to lower the brightness of the display means when the voltage of the battery drops to the lowest voltage at which the transmitting means can operate. It is a wireless low frequency treatment device.

(e) The display means of the action main body displays the type of information transmitted by the transmission means. The limiting means limits the current to the display means and sharply lowers the brightness of the display means when the voltage of the battery decreases. This makes it easy to see the degree of battery consumption.

(F) EXAMPLES Hereinafter, examples of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the following examples.

FIG. 1 is a plan view of the main body l00 of this embodiment, FIG. 2 A is a plan view of the conductor wk200, and FIG. 2 B is a plan view of the conductor part 20.
FIG. 3 is an electric circuit diagram showing the electric circuit configuration of the main body 100 and the conductor portion 200.

The main body 100 includes: for setting the low frequency treatment mode;
The key switches Ia, lb, and Ic for "tat<IJ", "tat 2", and "kneading", and the key switches ld for "strong" and "weak" for setting the strength in each mode, a microcomputer that processes various information such as the mode and intensity of low-frequency treatment inputted from the key switch input terminal, which is equipped with a key switch LE and an "off" switch If for finishing the treatment; and a key switch manual III. (hereinafter referred to as microcomputer)
20, a conversion circuit 21 that converts information signals output by the microcomputer 20 into electromagnetic waves, that is, changes in magnetic field in response to various types of information, and an indicator 22 consisting of an LED or the like that indicates which mode is set. It consists of a variable output section 2. As shown in FIG. 4, the display unit 22 has respective key switches la, lb. Main body 100 corresponding to lc
Three light emitting diodes (hereinafter referred to as LED) are installed on the top surface of the
) 22a, 22b, 22c, and LED 22a,
A resistor 22 commonly connected to the anodes 22b and 22c
d and the diode 22e, and the diode 22
A resistor vL. 22f. Moto L, ED22a. The cathodes of 22b and 22c are connected to mano+1+, n1, m÷h, 1 hand, 9 IT workers, respectively. This display section 22
Each LED 22a, 22b. 22c is the key switch l
a, lb. The microcomputer 20 operates in response to a pressed key switch of the IC, and emits light using a predetermined current. When the voltage of battery B reaches the minimum guaranteed voltage of the microcomputer 20, that is, the lowest voltage at which the microcomputer 20 can operate, the diode 22a causes the LED 22a. 22b. 2
2c is limited, and as shown in FIG.
The brightness of the EDs 22a, 22b, and 22c will drop sharply. In addition, the minimum guaranteed voltage of the microcomputer 20 is 2.2.
v, the resistance value of the resistor 22d is 30 kΩ, and the resistance value of the resistor 2
2f may be 750Ω. The conversion circuit 2l has a resistor R
,}W4 is formed by transistor TR, capacitor C, and transmitting coil. The microcomputer 20 and the conversion circuit 2l constitute a transmitting means.

The conductive part 200 consists of two conductor bodies 200i and 200b, which are connected to each other by a lead wire 201. Then, the conductor body 200a or the conductor body 2 is formed.

In FIG. 3, 3 is Naka Uro, a magnetic/electric conversion circuit (hereinafter referred to as a conversion circuit) that receives the 1i@ wave transmitted from the main body 100 by the receiving coil 3a and converts it into an electric signal.
31, and a low-pass filter 32 for extracting an information signal from the electrical signal from the conversion circuit 3I.

Reference numeral 4 denotes a signal processor, which is composed of a microcomputer (hereinafter referred to as microcomputer) 40 and an oscillation circuit 4l that outputs a predetermined drive pulse d1 in response to a signal from the microcomputer 40. The microcomputer 40 supplies a drive pulse d to an electrical stimulation pulse output circuit (hereinafter referred to as pulse output circuit) 5.
tl+d 3. -dt! +dst is output.

The pulse output circuit 5 applies drive pulses d, d. to conductors 200c and 200d. ,d3+. dt*. The first transistor T outputs a low frequency pulse serving as an electrical stimulation in response to the drive pulse d, and is switched by the drive pulse d.
RI and Den! (not shown) and No.! transistor TRI
A coil Ll connected between the collector of the first transistor TRI and the emitter collector of the first transistor TRI
A capacitor CI connected through a capacitor CI and three transistors TR21. TR22, TR23 and two resistors Rl
1 and R12, and a second switching circuit 52. By arranging the first switching circuit 5K and the second switching circuit 52 in this way, it is possible to switch the polarity of the low frequency pulses output to the conductors 200c and 200d.

Reference numeral 6 denotes a buzzer output circuit, which includes a transistor 6a switched by a signal from the microcomputer 40, a buzzer 6b, a resistor 6c connected in parallel to the buzzer 6b, and a diode 6d connected to the buzzer 6b and the transistor 6a.

7 is a skin detection circuit, which includes a resistor R2l and a diode 021 connected in parallel, R22 connecting the conductor 200c and the anode of the diode D21, and a capacitor 2 connected between the anode of the diode D21 and the ground G. [, resistor R23 and diode D22 connected in parallel,
It consists of a resistor R24 connected between the conductor 200d and the anode of the diode D22, and a capacitor C22 connected between the anode of the diode D22 and the ground G.

Next, the operation of this embodiment will be explained with reference to FIGS. 6 to t2.

In Figure 6, first is the main body! In the microcomputer 20 of 00, in an initial state in which the key switch input terminal 1 is not operated, the clock oscillation is stopped and the microcomputer 20 is in the rsTOPJ state (Sl). In this state, the key switch la of key switch Jinrikiro 1. lb. When one of the lc is operated, the microcomputer 20 shifts from the rsTOPJ state to the "transmission" state in which the clock oscillates and transmits the information signal corresponding to the input key switch (S2), and starts the built-in timer. Let it start. At this time, the LEDs on the display section 22 blink in response to the key switches operated at the same time. "
Strong key switch ld and "weak" key switch Ia
If is operated, the microcomputer 20 continues in the rsTOPJ state.

For example, a case where the key switch la of "Tata<[" is pressed will be explained.

When the key switch la of Tata<IJ is pressed, the microcomputer 20 outputs the code h corresponding to the key switch la to the conversion circuit 21.The code h is input to the conversion circuit 21. A resonant current i flows through the capacitor C. As a result, each transmitting coil outputs a transmitting signal TI of "ta<1" as shown in FIG. 7 using a 5 KHz carrier wave. Transmission signal T, for example, after the header pulse, [CO CI C2
A pulse train in which Co CIC2 becomes [1 0 1 0 1 G] is then constructed. The pulses that make up the transmission signal T1 have a width of about 10 msec, during which time the transmission coil resonates. “Tata<IJ transmission signal T
Transmission signals T2 to T6 other than 1 are as shown in Table 1.

(Left below) Table 1 After any transmission signal is sent, the microcomputer 20
The state becomes that of key manpower j (S3).

In this state, each key switch 1a~! f becomes operable. When any of the key switches la to 1c is operated and the mode is changed while the "keys are waiting for human power" message tL is written, the timer of the microcomputer 20 is cleared each time. When the timer detects that the predetermined time has elapsed, the microcomputer 20 transmits the "off" code to the conversion circuit 2l.
and enters the rsTOPJ state.

Next, the operation of the conductor section 200 will be explained with reference to FIGS. 8 to 12.

Similar to the microcomputer 20, the microcomputer 40 of the conductor part 200 is in the rsTOPJ state (Sll) in which the clock is stopped and instructions cannot be received in the initial state, and the microcomputer 40 is in the When the provided O N/O FF switch SW is pressed, the clock oscillates and the rREADYJ state is entered in which only instructions can be accepted (S
1 2). "In the READYJ state, the operation command, that is, the information signal corresponding to the transmission signal converted from magnetism to electricity by the conversion circuit 3l, is not received, and the operation command is not received.
Alternatively, it is waiting for the detection signals e1 and e2 output from the skin detection circuit 7 to become low level. The microcomputer 40 has a built-in timer, and when the rREADYJ state continues for a predetermined period of time (for example, 3 minutes), it should reduce the consumption of the battery that is the power source.
Return to rsTOPJ state.

In the rREADYJ state, when the output signals el and e2 of the skin detection circuit 7 are at a low level and any of the information signals "Tata < IJ, r Tata < 2 J, r massage" is received, or any is receiving information signals from
When the output signals e1 and e2 change from high level to low level in this state, the microcomputer 40 shifts to the "treatment" operation (S13).

The skin detection circuit 7 includes each conductor 200c. If 200d is attached to the human body, low level output signals el,
Output e2. That is, the first switching circuit 5l
or active: the drive pulse d31 is set at high level, the output signal e2 of the skin detection circuit 7 is always at low level, and each conductor 200c. If 200d or 200d is not attached to the human body, the output signal el will be at a high level. On the contrary, when the second switching circuit 52 is active, the drive pulse d3! is at a high level,
The output signal e1 is always at a low level, and each conductor 2 of
If 00c and 200d are not attached to the human body, signal e
2 is a high level. Then, by the microcomputer 40 determining the states of the output signals el and e2, it is detected that the respective conductors 200c and 200d are attached to the human body.

? In the operation of "Treatment", the microcomputer 40 operates the oscillation circuit 4l in response to the information signal input from the low-pass filter 32, and also outputs the drive pulse d. and d
! ! are alternately output to the pulse output circuit 5. At this time, the microcomputer 40 outputs a signal to the buzzer output circuit 6, for example:
Make the f buzzer 6b sound "beep". The oscillation circuit 4l transmits the drive pulse d1 to the first pulse output circuit 5 in response to a signal from the microcomputer 40, as shown in FIGS. 9 to IO.
Output to transistor TRI. 1st transistor TR
I is turned ON/OFF by the drive pulse d1, and the excitation current flowing from the power supply to the coil Ll is interrupted. Then, the excitation current causes a boosted pulse voltage to be accumulated in the capacitor Ct via the diode DI. and microcontroller 4
For example, when the drive pulse d■ outputs 0, the first switching circuit 5! transistor TR22,
21 is turned on, and the stored energy stored in the capacitor C is applied to the conductor 200 as a low-frequency stimulation pulse O.
It is output between c and −200 d and applied to the human body. Drive pulse d. is the one that is output from the first transistor TRI while the drive pulse del is not being output, and as the number of pulses decreases, the energy stored in the capacitor CI decreases, as shown in Figure 10. , the intensity of the stimulation pulse 0 output to the human body becomes weaker.This stimulation pulse O is set by operating the "strong" key switch ld and the "weak j" key switch le of the key switch fil on the main body 100. In other words, while operating the IJ key switch la to perform low frequency treatment in that mode,
“Strong” key switch ld or “weak” key switch I
When e is operated, the information signal is input to the microcomputer 40 to change the drive pulse d.

That is, each mode rtat<N,'rtat2'' and '
In "Momu", Drive Valse d. , d0 is the first
．． As shown in Figure 1, in mode “Tata<IJ”, the distance is 720 m.
Output every sec, 360 in mode "Tap 2"
Output every msec, in mode "kneading"? 2Oms
900m after being output for 900msec at ec interval
It is not output for sec. In addition, in the mode "tata < IJ and rj:. signal d.

l is output from the microcomputer 40 to the oscillation circuit 4l (FIG. 12). Table 2 shows this period T and the intensity and voltage of the low frequency pulse.

Table 2 Table 3 also shows the intensity and duration of the “kneading” mode. T and voltage are shown.

Table 3 When the intensity is changed to the maximum, the microcomputer 40 sends a command to the buzzer output circuit 6, and the buzzer output circuit 6 receives the command and, for example, makes the buzzer 6b sound "beep beep".

During low frequency treatment, one of the guides 2
00c, 20Qd peel off from the human body, skin detection circuit 7
The signal el or e2 outputted by the microcomputer 40 becomes high level, and the microcomputer 40 interrupts the "treatment" operation and enters the rREADYJ state. Alternatively, if an information signal indicating the end of the movement is received during treatment, the user enters the READYJ state.
When the ADYJ state is maintained for a predetermined period of time (for example, 3 minutes) or when the ON/OFF switch SW is pressed, the microcomputer 40 enters the rsTOPJ state. Also, when the ON/OFF switch sW is pressed during operation, the microcomputer 40 is in the rsTOPJ state and the drive pulse d2 is activated. Stop the output of d2t.

If either or both of the conductors 200c and 200d are detached from the human body, and the conductor that has been removed from the lfS is attached to the human body, if the microcomputer 40 is in the rREADY state,
The output signals el and e2 of the skin detection circuit 7 become low level, and the treatment is started again.

The microcomputer 40 uses a built-in timer to wait a predetermined period of time after first receiving the mode information signal. 5 minutes) Perform the "treatment" action, and after the specified time has elapsed, r
It becomes READYJ state.

In the above embodiment, the skin detection circuit outputs two output signals depending on the polarity of the low-frequency pulse output from the conductor, but any configuration that does not change the polarity of the low-frequency pulse may be used. , the skin detection circuit may be configured to output any one of the output signals. In this case, the switching circuit may be an l circuit.

Furthermore, the transmitting coil of the main body and the receiving signal coil of Dochiro may be configured with a plurality of F4Js, for example, 2 m long, and each transmitting coil may output a given carrier wave with its phase shifted by 90'. In this case, electromagnetic waves are output from the main body in all directions, making it easier to receive MIXM waves.

(g) Effects of the Invention According to the present invention, by reducing the brightness of the display means, the state of battery consumption can be grasped, and errors in transmitting information signals can be prevented.

[Brief explanation of the drawing]

``1 Figure 1 is a perspective view of the main body of the embodiment of this invention.
Figures 2 and 7 A and B are plan views of the conductor portion of the embodiment, respectively.
Figure 3 is an electric circuit diagram showing the circuit configuration of the embodiment, Figure 4 is an electric circuit diagram of the display section, and Figure 5 shows the relationship between battery voltage changes and display brightness changes. Figure 6 is a schematic chart for explaining the operation of the main body, Figure 7 is a waveform diagram showing the waveform of the information signal transmitted from the main body, and Figure 8 is a graph showing the operation of the conductor section. 9 and 10 are waveform diagrams showing the relationship between the drive pulse dt+ and the low frequency bell when the number of drive pulses d is large and small, respectively.
The t diagram shows the drive bells d in each treatment mode.
! FIG. 12 is a time chart showing the time relationship between the drive pulse dli and the control signal in each treatment mode. 100... Main body, 200... Conductor part,
1...Key switch input section, 2...Conversion output section, 22...Display section,
22e... Diode, 3... Relay section, 4... Signal processing section, 5... Electric stimulation pulse output circuit, 5l.
. . . 1st switching circuit, 52 . . . 2nd switching circuit. 1st diagram 2 inner A 2 interval B pi==. 200 Figure 4 Figure 6 Figure 1 7 Figure 11 1,r1 8 Figure

Claims (1)

[Claims] 1. An input means for inputting various information regarding low frequency treatment, a transmission means for transmitting the information inputted by the input means, and a battery for supplying power to the input means and the transmission means. a main body comprising: a receiving means for receiving information transmitted from the transmitting means; a pulse generating means for generating a low frequency pulse corresponding to the information received by the receiving means; and a low frequency pulse generated by the pulse generating means. A wireless low-frequency therapy device comprising a conductor section comprising a pulse transmission means for transmitting pulses to a living body, the main body comprising a display means for displaying the type of information transmitted by the transmission means, and a display means for displaying the type of information transmitted by the transmission means, and a pulse transmission means for transmitting pulses to a living body. A wireless low-frequency treatment device further comprising: a limiting means that controls the current supplied to the display means to lower the brightness of the display means when the battery voltage drops to the lowest possible voltage. .