JPH04132566A - Low frequency therapeutic apparatus - Google Patents

Abstract

PURPOSE:To enable a user to learn worsened condition that a human body wears conductors whenever this happens by arranging a conductor current detection circuit to detect a current flowing through a pair of conductors and an annunciation circuit to produce an annunciation output when a current value as detected with the conductor current detection circuit falls below a specified value. CONSTITUTION:A conductor current detection circuit 6 is provided between a pulse discharging circuit 4 and conductors A and B and an annunciation circuit 7 is provided to generate an annunciation output by a control signal to be outputted from a control section 2 when a conductor current detected with the conductor current detection circuit 6 falls below a specified value. A value (i) of a current flowing through a resistor R is determined from a voltage across the resistor R detected and when the current value (i) falls below a specified value preset, a control signal is outputted. The annunciation circuit 7 produces an annunciation output for an annunciation sound, display or the like by the control signal from a control section 2. This allows a user putting on the conductors to learn that the mounting condition of the conductors A and B becomes worse by the annunciation output. Thus, treatment can be returned to the normal condition by redoing the mounting or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a low-frequency treatment device that applies electrical stimulation to the human body using low-frequency, high-voltage pulses.

[Conventional technology]

Conventionally, low-frequency treatment devices have been designed to electrically stimulate the human body and obtain therapeutic effects by bringing a pair of conductors into contact with the surface of the human body and applying low-frequency, high-voltage pulses between the conductors. or widely used.

A block diagram of such a low frequency treatment device is shown in FIG.

The data inputted from the switch section 1 is input to the control section 2, and is determined into treatment patterns such as on/off of treatment, treatment mode (kneading, tapping, vibration, etc.), intensity of treatment, speed of treatment, etc. The control unit 2 causes the booster circuit 3 to boost the voltage until it reaches a constant voltage according to the treatment pattern, and when the voltage reaches the constant voltage, discharges from the pulse discharge circuit 4 to the conductors A and B. let Conductors A and B are attached to the skin surface of the human body, and treatment is performed by pulsed current or electrical stimulation of nerves and muscles. Note that 5 is a power supply circuit that supplies power to the control section 2 and the booster circuit 3.

Here, the control of the treatment pattern has been performed by manipulating the switch section 1 by himself.

In addition, the method of attaching conductors A and B to the human body M is as follows.
As shown in FIG. 4, a method is used in which a conductive adhesive sheet S is pasted on the surfaces of the conductors A and B, and the conductor is attached to the human body M via the adhesive sheet S.

[Invention or problem to be solved]

However, in the above-mentioned low frequency treatment device, the adhesiveness of the adhesive sort S decreases due to human body sweat, and as shown in FIG. Even in such cases, the user does not know whether the degree of adhesion has decreased, and as a result, there is a problem in that the therapeutic effect is decreased.

The present invention has been made in view of the above-mentioned points, and its purpose is to enable the user to notify the user that the condition of the conductor being attached to the human body has deteriorated. Our goal is to provide a low-frequency treatment device that you can learn about.

[Means to solve the problem]

The low frequency treatment device of the present invention includes a control unit that outputs a control signal corresponding to a treatment pattern, and a pair of conductors that are attached to a human body and apply a voltage to the human body in accordance with the control signal. , a conductor current detection circuit that detects the current flowing between the pair of conductors, and an alarm circuit that issues an alarm when the current value detected by the conductor current detection circuit becomes equal to or less than a predetermined value. It is characterized by having the following.

[Effect]

In the low frequency treatment device of the present invention, when the degree of closeness between the conductor attached to the human body and the human body decreases, the current flowing between the conductors A and B decreases, and this current value is reduced. When the current value detected by the conductor current detection circuit becomes equal to or less than a predetermined value, a notification output is output from the notification circuit in response to a control signal from the barb.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing one embodiment of the present invention. Since the parts related to the basic operation of this embodiment are the same as those of the conventional example shown in FIG. 3, the same parts are given the same numbers and the explanation will be omitted.

In this embodiment, a conductor current detection circuit 6 is provided between the pulse discharge circuit 4 and the conductors A and B, and furthermore, when the conductor current detected by the conductor current detection circuit 6 becomes less than a predetermined value, A notification circuit 7 is provided which generates a notification output based on the barb signal output from the control section 2. The conductor current detection circuit 6 has a second
As shown in the figure, it consists of a resistor R, and the potentials across the resistor R are input to the input terminals IN and IN2 of the control section 2. The control section 2 has a built-in A/D converter (not shown), and can detect the potential difference between the input terminals IN and IN2, that is, the voltage across the resistor R.

A current value 1 flowing through the resistor R is determined from the detected voltage across the resistor R, and when this current value 1 becomes equal to or less than a predetermined value, a control signal is output. The notification circuit 7 outputs notifications such as notification sounds and displays based on control signals from the control section 2.

The user who is wearing the guides A and B can use this notification output to know if the state of the guides A and B is incorrect, and whether they can return to the normal treatment state by re-attachment, etc. It can be done.

〔Effect of the invention〕

As described above, the low frequency treatment device of the present invention has a problem in that when the degree of contact between the conductor attached to the human body and the human body decreases, the current flowing between the conductors A and B becomes smaller. The value is detected by the conductor current detection circuit, and when the current value detected by the conductor current detection circuit becomes less than a predetermined value, a control signal from the control unit causes the notification circuit to output a notification output. Therefore, we have been able to provide a low-frequency treatment device that allows the user to know when the state of attachment of the guide to the human body deteriorates.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing the conductor current detection circuit of the same as above, FIG. 3 is a block diagram of a conventional example, and FIG. 4 is a block diagram of the same as above. FIG. 5 is a schematic diagram showing the state in which the conductor is attached to the human body. FIG. 1 switch section 2 control section 3 booster circuit 4 pulse discharge circuit 5 power supply circuit 6 conductor current detection circuit notification circuit A. Conductor/Resistance

Claims (1)

[Claims] (1) A low frequency treatment device comprising a control unit that outputs a control signal corresponding to a treatment pattern and a pair of conductors that are attached to the human body and apply a voltage to the human body according to the control signal,
A conductor current detection circuit that detects the current flowing between the pair of conductors, and a notification circuit that outputs a notification output when the current value detected by the conductor current detection circuit becomes equal to or less than a predetermined value. A low frequency treatment device featuring: