JPH05111470A - Bath tub electrocardiograph - Google Patents

Abstract

PURPOSE:To provide the bathtub electrocardiograph which is portable, has no danger of an electric shock and can make measurement of one person even if plural persons are in a bathtub. CONSTITUTION:A case body 11 is so constituted as to float in water. Different electrodes 12a, 12b and a indifferent electrode 12c are provided by being exposed to the outside in the lower part 11b of the case body. The upper part 11 a of the case body 11 is hermetically sealed by a gasket 14. A battery and a measuring electronic circuit part are housed therein. An electrocardiogram monitor display section 16 and a heart rate display section 17 are provided atop the case body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrocardiograph (called a bathtub electrocardiograph) capable of detecting and monitoring an electrocardiographic waveform in a bathtub.

[0002]

2. Description of the Related Art Conventionally, most electrocardiographs have electrodes attached to the chest, limbs, etc. to induce a cardiac potential and derive an electrocardiogram.

[0003]

In the above-mentioned conventional electrocardiograph, the electrode mounting position is determined, and the electrode must be mounted on the body, and it is extremely difficult for the user to mount it on the chest or limbs. There was a problem of being bothersome and difficult. In addition, there are some load electrocardiograms that monitor the electrocardiogram during exercise load, in which the subject wears a portable electrocardiograph and is monitored during exercise, but the wearing state of the electrodes changes due to body movements during exercise. However, there is a problem that it is difficult to monitor accurately.

Therefore, in order to solve this problem, the inventor of the present invention comprises an electrocardiographic electrode installed in a bath and a main body for processing an electrocardiographic waveform from the electrocardiographic electrode and displaying it on a display unit. Created a bathtub electrocardiograph and already filed a separate application. Specifically, this bathtub electrocardiograph includes, as shown in FIG. 8, an electrode section 1 and a main body section (operation display section) 2 connected to the electrode section 1 by a connection cord 3. There is.
The electrode unit 1 is composed of a pair of related electrodes 1 a, 1 b and an indifferent electrode 1 c, both of which are installed on the inner wall surface of the bath 4. The main body 2 is installed, for example, on a bathroom wall, and on the surface,
A power switch 5, a transmission switch 6, an electrocardiogram monitor unit 7 and a heart rate display unit 8 are provided, and a circuit unit for waveform processing and signal processing is built therein. This bathtub electrocardiograph is very convenient because the subject only needs to enter the bathtub and there is no need to attach electrodes to the body.

However, this bathtub electrocardiograph has an electrode installed on the inner wall of the bathtub, and once installed, it has a disadvantage that it cannot be carried and used in another bathtub. Also, when a commercial power source is used as the power source for the bathtub electrocardiograph, there is a large risk of electric shock due to electrical leakage.
To prevent this, expensive parts such as an isolation amplifier and an isolation transformer are required. In addition, there is a problem that the electrocardiogram cannot be detected when two people enter the bathtub at the same time.

The present invention has been made in view of the above-mentioned problems, and can be carried anywhere, there is little risk of electric shock, and one person can measure even if a plurality of people enter the bathtub. It is intended to provide a bathtub electrocardiograph.

[0007]

A bathtub electrocardiograph according to claim 1 is provided with an electrode exposed to the outside of a case body having a structure that floats on water, a battery and a measuring electronic circuit in the case body. The part is hermetically sealed, and the display is provided on the upper surface of the case body. Since this bathtub electrocardiograph is used by floating it on the water surface in the bathtub and immersing the electrode in water, it can be carried and used anywhere in the bathtub. Further, since a battery is used as a power source, there is little risk of electric shock.

Further, in the bathtub electrocardiograph according to a second aspect of the present invention, an electrode exposed outside the case body having a structure that floats in water is provided, and a battery, a measurement electronic circuit, and a transmission for transmitting measurement data are provided in the case body. While the unit is sealed, the operation display unit is provided separately from the case body and includes a receiving unit that receives the transmitted measurement data and a display that displays the measurement data.

In this bathtub electrocardiograph, an electrocardiogram is detected by the case body which is the detection unit, and the measurement data is sent from the transmission unit to the operation display unit using infrared rays and displayed. There is no danger of electric shock because the detector operates with batteries. In addition, by bringing the case body near the body of the subject, the measurement can be performed even when a plurality of persons are present.

[0010]

The present invention will be described in more detail with reference to the following examples. FIG. 1 is an external view of a bathtub electrocardiograph according to an embodiment of the present invention. In FIG. 1, (a) is a plan view, (b) is a front view, and (c) is a bottom view. The case body 11 of the bathtub electrocardiograph is composed of an upper portion 11a and a lower portion 11b, and the lower external electrode 12a,
12b and the indifferent electrode 12c are provided so as to be exposed. Further, the lower portion 11b is filled with a foam material 13 so as to float when the case 11 is put in water. The upper part 11a is sealed by a packing 14 to prevent water from entering. A power switch 15, an electrocardiogram monitor display unit 16, a heart rate display unit 17, and an infrared transmission window 18 are provided on the surface of the upper portion 11a, and a battery, a measuring electronic circuit, an infrared transmission unit, etc. are provided in the case of the upper portion 11a. It is housed.

FIG. 2 is a circuit block diagram of the bathtub electrocardiograph according to the above embodiment. Inside the upper part 11a of the case body 11,
The external electrodes 12a, 12b, 12 are connected by the connection cord 3.
ECG amplifier 21, high-pass filter 22, main amplifier 23, and low-pass filter 24 connected to c
And an A / D converter 25 and a CPU for data processing the electrocardiographic waveform converted into a digital signal by the A / D converter 25.
26 and an infrared transmitter 28 for transmitting the obtained result data to an external device. All of these circuits are operated by a built-in battery (not shown).

When the bathtub electrocardiograph is used for the measurement, the bathtub is filled with hot water, and the case body 11 is brought into the bathtub by the subject, and the case body 11 is floated on the surface of the bath. Close to itself and turn on the power switch 15. As a result, a current corresponding to the electrocardiographic waveform flows through the power sources 12a, 12b, 12c through the body of the subject, the electrocardiographic waveform is captured by the CPU 16, and the electrocardiographic waveform is displayed on the display 29. The heart rate is calculated by the CPU 26 and displayed on the heart rate display 17 of the display 29. Then, the waveform of a certain time is stored in the memory in the CPU 26, transmitted from the infrared transmission unit 28 to an external output device, and is printed out, for example. The transmitted wave is
Electromagnetic waves may be used instead of infrared rays.

The bathtub electrocardiograph of this embodiment has no troublesome electrode attachment, can be easily carried, and can easily monitor the electrocardiogram every day. By taking a bath, the same result as that of the stress electrocardiogram measurement can be easily obtained. It is also possible to detect an abnormal change in heart rate when taking a bath and notify the user by an alarm. Since it uses a battery as a power source, it has sufficient safety.

FIG. 3 is an external view of an embodiment according to the bathtub electrocardiograph of claim 2. The bathtub electrocardiograph of this embodiment includes a detection unit 31 that is floated on the water surface in the bathtub 4, and the detection unit 3
1 and an operation display unit 41 that is electrically and mechanically separated and is hung on the wall surface of the bathroom. FIG. 4 shows an enlarged external view of the detection unit 31, and in FIG.
(A) is a plan view, (b) is a front view, (c) is a bottom view,
(D) is a side view. Case body 32 of the detection unit 31
Is composed of an upper part 32a and a lower part 32b. From the lower surface of the lower part 32b, external electrodes 33a and 33b and an indifferent electrode 33c are
Is exposed. Further, the lower part 32b is filled with a foam material 34 so as to float when the case body 32 is put in water. The upper portion 32a is sealed by packing 35 so that water does not enter. A power switch 36 and an infrared transmission window 37 are provided on the surface of the upper portion 32. A battery for power supply and a circuit portion of the detection unit 31 are housed in the upper portion 32 a of the case body 32.

As shown in the enlarged view of FIG. 5, the operation display unit 41 has a power switch 42, a transmission switch 43, an electrocardiogram waveform display unit 44, and a heart rate display unit 45 on the panel surface.
And an infrared receiver 46. The heart rate display unit 45 displays the heart rate with a two-digit number and blinks the heart mark 47 in synchronization with the heartbeat.

As shown in FIG. 6, the internal circuit of the detector 31 includes a preamplifier 61 to which electrodes 33a, 33b and 33c are connected, a high pass filter 62, a low pass filter 63, an A / D converter 64, and A logic control unit 65,
And an infrared transmitter 66. In addition, the operation display unit 4
In the internal circuit of No. 1, as shown in FIG.
1, a CPU 72, a communication control unit 74, and an external storage output unit 75.

When performing measurement using this bathtub electrocardiograph, the bathtub 4 is filled with hot water, and the subject enters the bathtub 4 with the detector 31 and floats the detector 31 on the surface of the bath. , The detection unit 31 near the body, power switch 15, 42
Turn on. Thereby, the electrodes 33a, 33b, 33c
A current corresponding to the electrocardiographic waveform flows through the body of the subject, the electrocardiographic waveform is converted into a digital signal in the detection unit 31 and transmitted from the infrared transmission unit 66, and the operation display unit 4
Sent to 1. The operation display unit 41 receives this, displays the waveform on the electrocardiographic waveform display unit 46 of the display unit 73, and displays the heart rate on the heartbeat display unit 45. When the transmission switch 43 is turned on, the communication control unit 7
4, the measurement data is output to the external storage device via the external storage output unit 75.

[0018]

According to the first aspect of the present invention, the electrode and the measurement circuit section are integrally housed in the case body, and since they are battery-operated, they are portable and have a low risk of electric shock. Even if a plurality of people enter the bathtub, the measurement of one person is possible by placing the case body near the body of the subject.

According to the second aspect of the present invention, the detection section having the electrodes is separated from the operation display section, and the detection section floats on water,
Since it is driven by a battery, there is little risk of electric shock, and even if multiple people enter the bathtub, one person can measure.

[Brief description of drawings]

FIG. 1 is an external view of a bathtub electrocardiograph according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of the bathtub electrocardiograph according to the embodiment.

FIG. 3 is a schematic view showing a bathtub electrocardiograph according to an embodiment of the present invention.

FIG. 4 is an external view of a detection unit of the bathtub electrocardiograph according to the embodiment.

FIG. 5 is an enlarged view of an operation display unit of the bathtub electrocardiograph according to the embodiment.

FIG. 6 is a block diagram showing a circuit configuration of a detection unit of the bathtub electrocardiograph according to the embodiment.

FIG. 7 is a block diagram showing a circuit configuration of an operation display unit of the bathtub electrocardiograph according to the embodiment.

FIG. 8 is an external view showing a bathtub electrocardiograph already applied for.

[Explanation of symbols]

 11, 32 Case body 11a, 32a Upper part of case body 11b, 32b Lower part of case body 12a, 12b, 33a, 33b Custom electrode 12c, 33c Indifferent electrode 16, 44 Electrocardiogram monitor display section 17, 45 Heart rate display section

Claims (2)

[Claims] 1. An electrode is provided so as to be exposed to the outside of a case body having a structure that floats on water, a battery and a measuring electronic circuit section are sealed in the case body, and a display section is provided on the upper surface of the case body. Bathtub electrocardiograph. 2. An electrode is provided exposed to the outside of a case body having a structure that floats on water, and a battery, a measurement electronic circuit, and a transmitter for transmitting measurement data are sealed inside the case body, while the case body is A bathtub electrocardiograph, which is provided with an operation display unit that is separately provided with a receiving unit that receives transmitted measurement data and a display unit that displays the measurement data.