JPH04215769A - Low-frequency therapeutic unit - Google Patents

Abstract

PURPOSE:To facilitate the judgment on the replacement of an adhesive pad by reporting the replacement timing of the adhesive pad. CONSTITUTION:Electrodes 3a, 3b are fitted to a human body, when the adhesive strength of an adhesive pad is reduced and the voltage Vx becomes V1 or above and V2 or below, an input terminal I1 becomes an L-level, and an input terminal I2 becomes an H-level. When the input terminal I1 is an L-level and the input terminal I2 is an H--level, a pulse is outputted from the output terminal O2 of a control circuit l, a reporting circuit 5 is driven, and the replacement timing of the adhesive pad due to the reduction of the adhesive strength of the adhesive pad is reported to a user via a light emitting diode or a buzzer.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-frequency treatment device that fixes electrodes to a treatment area using adhesive pads and conducts low-frequency treatment by applying current.

0002

2. Description of the Related Art Adhesive pads are used to fix the electrodes of low-frequency treatment devices to treatment areas. If you use this adhesive pad over and over again, the oils and fats from your skin will adhere to it, reducing its adhesive strength. Furthermore, the adhesive strength decreases due to evaporation of water in the adhesive pad.

0003

[Problems to be Solved by the Invention] Due to this decrease in adhesive strength, the contact area with the skin also decreases, the electric current flowing through the human body also decreases, and the effectiveness of the low-frequency treatment device decreases. There is a problem in that it is difficult to determine when to replace the adhesive pad because it depends on the user's sense of irritation. The present invention has been provided in view of the above-mentioned points, and provides a low frequency treatment device for the purpose of notifying the time to replace the adhesive pad and facilitating the decision to replace the adhesive pad. It is.

0004

[Means for Solving the Problems] The present invention includes a control means that detects the current flowing through the human body and issues a notification to replace the adhesive pad when the current is lower than a predetermined level. .

[0005]

[Operation] The control means detects the current flowing through the human body, and when the current is less than a predetermined level, a notification to replace the adhesive pad is issued.

[0006]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a block circuit diagram, and this low frequency treatment device includes a control circuit 1, a waveform shaping circuit 2, a pair of conductors 3a, 3
b, a human body detection circuit 4, a notification circuit 5, etc. A pulse is output from the output terminal O1 of the control circuit 1, and this pulse is passed through the waveform shaping circuit 2, and the low frequency pulse is outputted to the conductor 3.
The signals are output to ports a and 3b, and the treatment is performed at the treatment section. When the conductors 3a and 3b are attached to the human body, a low frequency current Ix flows, and the current Ix also flows through the resistor R1. Therefore, due to the voltage drop across the resistor R1, Vx
voltage is generated.

[0007] Here, as the adhesive strength of the adhesive pads attached to the conductors 3a and 3b decreases, the contact area with the skin also decreases, the human body resistance Rx increases, and the current Ix decreases. Therefore, voltage Vx also decreases. The level of this voltage Vx is detected by the human body detection circuit 4. Next, an example will be given. Now, when the conductors 3a and 3b are not attached to the human body, the current Ix does not flow at all, and Vx=0. In this case, both input terminals I1 and I2 of the control circuit 1 are at H level.

The conductors 3a and 3b are attached to the human body, and the voltage V
When x is at a predetermined level V1, the input terminal I1 of the control circuit 1
, I2 become L level. When the adhesive force of the adhesive pad decreases and the voltage Vx is greater than or equal to V1 and less than V2, the input terminal I1 becomes L level and the input terminal I2 becomes H level. When the input terminal I1 is at the L level and the input terminal I2 is at the H level, a pulse is output from the output terminal O2 of the control circuit 1, drives the notification circuit 5, and notifies the user with a light emitting diode or buzzer, etc. It is designed to notify the user when it is time to replace the adhesive pad due to a decrease in the adhesive strength of the adhesive pad.

The control circuit 1, the resistor R1, the human body detection circuit 4, the notification circuit 5, etc. constitute a control means.

0010

[Effects of the Invention] As described above, the present invention is equipped with a control means that detects the current flowing through the human body and issues a notification to replace the adhesive pad when the current is lower than a predetermined level. The control means detects the current flowing through the human body, and if the current is less than a predetermined level,
It is possible to notify the user to replace the adhesive pad, so that the user can always perform low-frequency treatment in good condition by replacing the adhesive pad.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of an embodiment of the present invention.

[Explanation of symbols]

3a, 3b Conductor 3a, 3b - conductor

Claims (1)

[Claims] Claim 1: A low-frequency treatment device that performs low-frequency treatment by passing an electric current through the human body between adhesive pads attached to a pair of conductors, which detects the electric current flowing through the human body, and detects the current flowing through the human body. A low frequency treatment device characterized by comprising a control means for notifying the adhesive pad to be replaced when the level is low.