JPH08266492A - Heart rate and heart rate thermometer - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a means for measuring a heart rate in a manner of measuring a body temperature by a normal body temperature measuring method. [Structure] A heartbeat thermometer 1A includes a temperature sensor 3 and an electrode 4 provided in a main body case 2, and a calculation unit 5 for calculating a body temperature value and a heart rate from the outputs of the temperature sensor 3 and the electrode 4 inside the main body case 2, respectively. And a display unit 6 for displaying the body temperature value and the heart rate calculated by the calculation unit 5 are provided in the main body case 2. [Operation] By sandwiching the thermometer 1A under the armpit, the body temperature and the heartbeat are simultaneously measured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heart rate monitor and a heart rate thermometer in which a heart rate measuring function is added to a conventional pencil type thermometer.

[0002]

2. Description of the Related Art Conventionally, mercury thermometers and electronic thermometers of the pencil type have been used as means for measuring body temperature, and a palpation method or the like has been widely used for heartbeat measurement, but the body temperature and heartbeat can be measured simultaneously. Means are not currently commercially available. On the other hand, at medical / nursing sites in hospitals and other medical facilities, it is necessary to measure temperature and heart rate several times a day. Has become.

Focusing on these problems, in order to be able to simultaneously measure the body temperature and the heartbeat, the actual construction of Sho 61-19
An electronic thermometer with a heart rate monitor described in No. 1003 has been proposed. This electronic thermometer with a heart rate monitor is equipped with a temperature sensor for inserting into the ear canal in the main body case, a sandwiching piece for sandwiching the earlobe on the side of the main body case, and a pulse wave sensor on the surface where the sandwiching piece and the main body case face each other. By inserting the temperature sensor into the ear canal and using the earlobe between the holding piece and the main body case, the body temperature and the heartbeat can be measured at the same time.

[0004]

In the electronic thermometer with a heart rate monitor as described above, the body temperature is measured especially in the ear canal, which is not often performed in the medical / nursing field, and the reliability of the measured value is high. There is also a problem with sex. In addition, since the method of measuring the body temperature is greatly changed from the method of measuring the body temperature (held in the armpit or in the mouth), it is difficult for the user to accept and is not realistic.

Therefore, the present invention has been made in view of such problems, and an object thereof is to provide a means for measuring a heartbeat by a normal body temperature measuring method.

[0006]

In order to achieve the above-mentioned object, a heart rate monitor according to claim 1 of the present invention comprises a main body case having a flat plate portion and a thin tip portion connected to the flat plate portion, and a main body case of the main body case. A pair of electrodes arranged on the front and back of the flat plate section for obtaining an electrocardiographic waveform, a calculation section which is built in the main body case and obtains a heart rate from the output of the electrodes, and an output of the calculation section which is provided on the flat plate section And a display unit for displaying the heart rate.

According to a second aspect of the present invention, a heartbeat thermometer is provided with a temperature sensor for measuring a body temperature and an electrode for obtaining an electrocardiographic waveform in a main body case, and outputs of the temperature sensor and the electrode. The main body case is provided with a calculation unit for calculating the body temperature value and the heart rate, and a display unit for displaying the body temperature value and the heart rate calculated by the calculation unit is provided in the main body case.

[0008]

In the heart rate monitor according to claim 1, since the pair of electrodes are arranged on the front and back of the flat plate portion of the main body case, the heart rate is measured in the same manner as a normal body temperature measurement, that is, the heart rate monitor is sandwiched between the armpits. it can. In the heartbeat thermometer according to claim 2, since the main body case is provided with the temperature sensor and the electrode, that is, for example, the main body case of an ordinary pencil type electronic thermometer is provided with an induction electrode for obtaining an electrocardiographic waveform. Therefore, the heart rate can be measured at the same time as the body temperature is measured by the normal body temperature measurement method.

[0009]

EXAMPLES The heart rate meter and the heart rate thermometer of the present invention will be described below based on examples. FIG. 1 is an external view of a heart rate thermometer according to the embodiment, and FIG. 2 is a block diagram of an internal circuit configuration.
Shown in The heart rate thermometer 1A is a normal pencil type, and a body case 2 is provided with a temperature sensor 3 for measuring a body temperature and an electrode 4 (hatched area) for obtaining an electrocardiographic waveform. In the inside of 2, the calculation unit 5 for calculating the body temperature value and the heart rate from the outputs of the temperature sensor 3 and the electrode 4, respectively, is built in, and the body case 2 further stores the body temperature value and the heart rate calculated by the calculation unit 5. A display unit 6 for displaying is provided.

In this embodiment, the temperature sensor 3 is, for example, a thermistor and is attached to the thin tip of the body case 2, and the electrode 4 is composed of a pair of electrodes 4a and 4b, each of which is a flat plate portion (side surface) of the body case 2. It is arranged on the front and back. The signal from the temperature sensor 3 is applied to the resistance-voltage conversion circuit 7
After being converted into a predetermined signal by, and after the signal from the electrode 4 is amplified by the electrocardiogram amplifying circuit 8, both are input to the arithmetic unit 5. The body temperature value (° C.) calculated by the calculation unit 5 is displayed on the body temperature display unit 6 a of the display unit 6, and the heart rate (beats / minute) is displayed on the heart rate display unit 6 b of the display unit 6.

The heart rate clinical thermometer 1A constructed in this manner is inserted into the armpit of the subject M from below at an angle of about 45 degrees as shown in FIG. Hold on the right side (left side) of the chest so that it does not fall. That is, the right arm (left arm) and the right side (left side) of the chest are inevitably in contact with the side surface (flat plate portion) of the body case 2 of the thermometer 1A. In the thermometer 1A, since the electrode 4 for obtaining the electrocardiographic waveform is provided at the contact portion (the flat plate portion of the main body case 2), by sandwiching the thermometer 1A under the armpit, the body temperature and the heartbeat can be measured simultaneously.

Further, the fact that the electrode 4 contacts the right arm (left arm) and the right side (left side) of the chest means that the electrode is at the base of the arm a.
Is virtually equivalent to attaching to the chest b. Therefore, in this thermometer 1A, the second in the normal electrocardiographic waveform measurement is used.
An electrocardiographic waveform similar to that of the lead will be obtained. FIG.
As shown in, by binarizing the electrocardiographic waveform obtained at the electrode 4 with a certain threshold voltage, a binarized signal of a pulse can be obtained. Therefore, by measuring the number of pulses per minute,
A heart rate (beats / minute) value is obtained. The obtained heart rate is displayed on the display unit 6 together with the body temperature.

If the pulse number is measured for several minutes at the same time as the body temperature measurement, several heart rate (beats / minute) values are obtained. By averaging these values, an average value for several minutes can be calculated. In this case, the accuracy of heart rate measurement is improved by averaging the data when the body position is not stable immediately after the start of measurement. The heartbeat thermometer 1A is an example of displaying a body temperature value and a heart rate, and FIG. 5 shows a heartbeat thermometer 1B in which an electrocardiogram display is further added to the display. This thermometer 1B is basically the same as the thermometer 1A, but is designed to simultaneously display the electrocardiogram induced from the electrode 4. That is,
Here, the display unit 6 includes a body temperature display unit 6a, a heartbeat display unit 6b, and an electrocardiogram display unit 6c, and an electrocardiogram is displayed on the electrocardiogram display unit 6c. By thus displaying the electrocardiogram together with the body temperature value and the heart rate, the electrocardiogram can be simultaneously measured in a short time (3 to 5 minutes) at the same time as the body temperature measurement, and a simple electrocardiographic screening can be performed.

The heart rate thermometers 1A and 1B of the above embodiment
In, the calculation unit 5 calculates the number of arrhythmia detected during the heartbeat measurement from the electrocardiogram induced from the electrode 4, and the display unit 6
By displaying the number of arrhythmias, it becomes possible to perform primary screening for arrhythmias and the like in a short time at the same time as measuring the body temperature. Further, in the above embodiment, the heart rate and the body temperature value are simultaneously displayed, but a changeover switch may be provided to selectively display one of them. Alternatively, the body temperature value display, the heart rate display, and the body temperature value and heart rate display may be sequentially switched each time the changeover switch is operated. Alternatively, the changeover switch may be used also as a power switch (not shown), and each time the power switch is pressed, the power is turned on, only the body temperature value is displayed, only the heart rate is displayed, and the power is turned off. .

Furthermore, if the temperature sensor is composed of another member having the same shape, or if the connection between the temperature sensor and the internal circuit is cut off, the heart rate can be measured.

[0016]

As described above, according to the first aspect of the present invention.
The described heart rate monitor has the following effect (1) because the pair of electrodes are arranged on the front and back of the flat plate portion of the main body case. (1) Heart rate can be measured in the same manner as normal body temperature measurement, that is, the heart rate is sandwiched between the armpits.

Further, the heartbeat thermometer according to claim 2 of the present invention has the following effects (2) to (5) because the temperature sensor and the electrode are provided in the main body case. (2) Since the body temperature and the heartbeat can be measured at the same time, the measurement can be performed in a shorter time compared to the case where they are measured separately, and the burden on the subject and the burden on the nurse can be reduced. (3) Since the method of measuring the body temperature is the same as that of the normal measurement, the measurement can be performed in a familiar manner, and the user will not be confused. (4) When measuring the heartbeat, the conventional palpation method is 30
The heart rate in seconds is measured and doubled to be the heart rate per minute. However, in the present invention, heart rate measurement is performed at the same time as body temperature measurement. Therefore, heart rate measurement is necessarily performed for 3 to 5 minutes. And the accuracy of heart rate measurement is dramatically improved. (5) By calculating the number of arrhythmias detected during heart rate measurement from the electrocardiogram and displaying the number of arrhythmias,
It becomes possible to perform primary screening such as arrhythmia in a short time at the same time as measuring body temperature.

[Brief description of drawings]

FIG. 1 is an external view of a heart rate thermometer according to an embodiment.

FIG. 2 is a block diagram of a circuit configuration of the heartbeat thermometer of the same embodiment.

FIG. 3 is a diagram showing an example of use of the heartbeat thermometer of the same embodiment.

FIG. 4 is a diagram for explaining how to process an electrocardiographic waveform obtained by the electrodes of the heartbeat thermometer of the same embodiment.

FIG. 5 is an external view of a heart rate thermometer according to another embodiment.

[Explanation of symbols]

 1A, 1B Heart rate thermometer 2 Main body case 3 Temperature sensor 4 Electrode 5 Calculation part 6 Display part

Claims (4)

[Claims] 1. A main body case having a flat plate portion and a thin tip portion connected to the flat plate portion, a pair of electrodes arranged on the front and back of the flat plate portion of the main body case for obtaining an electrocardiographic waveform, and the main body case. A heart rate monitor, comprising: a calculation unit that is built in and obtains a heart rate from the output of the electrode; and a display unit that is provided on the flat plate unit and that displays the heart rate output from the calculation unit. 2. A main body case is provided with a temperature sensor for measuring a body temperature and an electrode for obtaining an electrocardiographic waveform, and a computing unit for computing a body temperature value and a heart rate from the outputs of the temperature sensor and the electrode, respectively. A heartbeat thermometer, characterized in that the main body case is provided with a display unit for displaying the body temperature value and the heart rate calculated by the calculation unit. 3. The heartbeat thermometer according to claim 2, wherein the display section simultaneously displays an electrocardiogram induced from the electrodes. 4. The calculation unit calculates the number of arrhythmias detected during heartbeat measurement from an electrocardiogram induced from the electrodes,
The heartbeat thermometer according to claim 2 or 3, wherein the display unit displays the number of arrhythmias.