JP3687573B2 - Bathing guide method and bathing guide apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bathing guide method and a bathing guide apparatus capable of measuring an electrocardiogram waveform and a pulse waveform of a bather and obtaining a bathing time suitable for the bather from the measured electrocardiogram waveform and pulse waveform.
[0002]
[Prior art]
In general, when the body warms up by taking a bath for a reasonable time, it is said that it will be tired and healthy both physically and mentally. For example, if you bathe in hot water for a long time, the body will warm up too much. Hot flashes and heat stroke may occur.
In particular, when elderly people take a bath, even though the body has already warmed up due to bathing, the senses of the body have diminished, so the hot water is not felt as if it has warmed up, and hot flashes or abnormal situations occur There was a thing.
Therefore, in order to prevent such a problem, a bathing guide device configured to notify that it is time to take a bath by a timer device when a predetermined time has elapsed since the start of bathing is used.
In addition, electrodes and sensors for measuring the electrocardiogram waveform and pulse waveform are provided in the bathtub, and the electrocardiogram waveform and pulse waveform of the bather are measured and displayed. A bathtub constructed to show changes has been devised.
[0003]
[Problems to be solved by the invention]
Especially for elderly people, bathing in hot water for a long time may cause cerebral hemorrhage, cerebral infarction, etc. due to blood vessel contraction / dilatation and increased blood flow. Since there are large individual differences in the physiological response, etc., as described above, when the bathing time is uniformly set and the bathing time is notified, the appropriate bathing time can be notified to each bather. There wasn't.
In addition, in the bathtub configured to measure and display the electrocardiogram waveform and pulse waveform of the bather, what the meaning of the displayed change in the electrocardiogram waveform and pulse waveform means to the general public. It was difficult to understand, and as a result, it became a long bath, and the occurrence of hot flashes and abnormal situations could not be effectively prevented.
Therefore, in the present invention, there is provided a bathing guide method and bathing guide device capable of effectively preventing hot flashes and abnormal situations by notifying the bathing time suitable for each bather's body. It is.
[0004]
[Means for Solving the Problems]
The present invention uses the following means in order to solve the above problems.
In claim 1, the electrocardiogram waveform of the bather is measured by the electrocardiogram waveform measuring means provided in the bathroom, the pulse wave of the bather is measured by the pulse wave measuring means provided in the bathroom, and the contraction of the heart The pulse wave propagation time during which the generated pulse wave propagates to the pulse wave measuring means is calculated as a deviation time between the electrocardiogram waveform and the pulse waveform obtained by measurement, and the time of bathing is calculated based on the deviation time. In the bathing guide method to be determined, the time-dependent change of the shift time from the start of bathing is obtained, the first maximum value of the time-dependent change value is detected, and the time point at which the first maximum value is detected is taken as the time of bathing This is a bathing guide method characterized by that.
[0005]
In Claim 2, the electrode installed in a bathtub, the electrocardiogram waveform measurement means which processes the detected value from this electrode, and calculates | requires an electrocardiogram waveform, the pulse wave measurement means installed in a bathtub, A pulse wave measurement means for processing a detection value from the pulse wave measurement means to obtain a pulse wave, and a pulse wave propagation time in which the pulse wave generated by contraction of the heart propagates to the pulse wave measurement means is expressed as an electrocardiogram waveform. Calculated as a deviation time from the pulse waveform, obtains a change over time of the deviation time from the start of bathing, calculates the first maximum value of the change over time, and the first maximum value of the change over time And a notifying means for prompting the bather to take a bath at the time when the bath is detected.
[0006]
In claim 3, the bathing guide device can calculate a blood pressure equivalent value representing an estimated value of the blood pressure of the bather by the calculation means from the time difference between the peak wave of the electrocardiogram waveform and the pulse waveform, A bathing guide device comprising display means for displaying a blood pressure equivalent value and a heart rate obtained from the electrocardiogram waveform.
[0007]
According to a fourth aspect of the present invention, the pulse wave measuring means can detect a pulse wave by contacting the body of the bather, and when the bather takes a natural bathing posture, It is a bathing guide device characterized by being arranged at a position where it abuts.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
1 is a side view showing a schematic configuration in a bathroom in which the bathing guide device of the present invention is configured, FIG. 2 is a front sectional view showing a bathtub in the bathroom, and FIG. 3 is a time difference between an electrocardiogram waveform and a pulse waveform. FIG.
[0009]
FIG. 4 is a diagram showing the relationship between the deviation time and the blood pressure value, FIG. 5 is a diagram showing the blood pressure value at the time of bathing and the change over time in the bath time, FIG. FIG. 7 is a diagram showing a flow from measurement of the electrocardiogram waveform and pulse waveform to notification at the time of bathing.
[0010]
First, a schematic configuration in the bathroom 5 in which the bathing guide device of the present invention is configured will be described.
1 and 2, 1 is a bathtub, 2 is a bath device, and the bath device 2 is a so-called composite having both a function of a bath for boiling the bath water 1 a and a function of a water heater for supplying hot water, for example. It is configured as a type bath pot.
[0011]
A remote controller 3 is connected to the bath device 2, and the remote controller 3 sets and displays the bath temperature and the hot water supply temperature.
[0012]
In addition, in this description, the inner side surface arrange | positioned in the left-right direction of a bather in each inner side surface in the bathtub 1 is the left-right inner side surface 1a * 1a, and the inner side surface arrange | positioned at the foot side of a bather is inside foot side. This is referred to as side surface 1b.
[0013]
Electrodes 6a and 6b are provided on the left and right inner wall surfaces 1a and 1a in the bathtub 1, and a ground electrode 6c is provided on the foot side inner wall surface 1b. The lower part of the foot side inner wall surface 1b protrudes toward the bather, and a pulse wave sensor 6d is provided at the lower part of the foot side inner wall surface 1b.
And when a bather takes a natural bathing posture, it is comprised so that a bather's sole may hit the pulse wave sensor 6d provided in the lower part of the foot side inner wall surface 1b. The pulse wave sensor 6d is, for example, a photoelectric pulse wave sensor that includes a light emitting unit and a light receiving unit, emits light from the light emitting unit toward the human body, and is configured to detect reflected light at the light receiving unit. Yes.
[0014]
The electrodes 6a and 6b, the ground electrode 6c, and the pulse wave sensor 6d are connected to an electrocardiogram / pulse wave meter 6 provided in the bathroom 5. The electrocardiograph / pulse wave meter 6 measures the electrocardiograph by processing detection signals from the electrodes 6a, 6b, and the earth electrode 6c, and processes the detection signal from the pulse wave sensor 6d. It is configured to measure a waveform. The electrocardiograph / pulse wave meter 6 is connected to the remote controller 3.
[0015]
The electrocardiogram waveform and the pulse waveform obtained by the measurement by the electrocardiograph / pulse wave meter 6 are as shown in FIG. 3, and the peak of the pulse waveform is delayed from the peak wave of the electrocardiogram waveform by the shift time Δt. Measured with timing.
This is because both the electrocardiogram waveform and the pulse waveform are generated based on the contraction of the heart, but the electrical signal when the electrocardiogram waveform causes the contraction of the heart is detected and measured almost simultaneously with the contraction. On the other hand, the pulse waveform is obtained by measuring a pulse wave generated by contraction of the heart and propagating to the sole over a predetermined time, and a time lag occurs between the two.
When the peripheral blood vessel is dilated, the vascular resistance is reduced as compared with the case where the peripheral blood vessel is not, so that the pulse wave propagation time Δt, which is a time difference between the electrocardiogram waveform and the pulse waveform, becomes large.
[0016]
Here, between the magnitude of the deviation time Δt between the electrocardiogram waveform and the pulse waveform and the magnitude of the blood pressure value P of the measurer, the blood pressure value PH with respect to the deviation time ΔtL and the deviation time shown in FIG. It has been found that there is a strong correlation, such as the relationship between ΔtH and blood pressure value PL. That is, when the deviation time Δt is large, the blood pressure value P decreases, and when the deviation time Δt is small, the blood pressure value P increases.
[0017]
FIG. 5 shows changes over time in the blood pressure value P and the deviation time Δt during bathing when bathing at time ti and taking out at time to. In addition, the temperature of the hot water to take a bath is about 42 degreeC or more, and is a state of what is called a high temperature bath.
When the blood pressure value P enters hot water (ti), the exchange nerves become tense and the peripheral blood vessels contract, so the blood pressure value rises rapidly (P1). If it is immersed in hot water for a while, the blood flow of the skin will slowly increase due to the heat of the hot water, the peripheral blood vessels will dilate and the blood pressure will fall (P1-P2). Thereafter, even when the dilation of the blood vessels reaches equilibrium, the increase in blood flow continues, the increase in blood flow prevails, and the blood pressure value changes from a lowered state to an increase (P2).
[0018]
On the other hand, the shift time Δt has an inversely proportional correlation with the blood pressure value P, and therefore, the shift time Δt decreases rapidly at the start of bathing (time ti) (shift time Δt1). After the start of bathing, the shift time Δt gradually increases (shift time Δt 1 to Δt 2), reaches a maximum at a time t m when the blood pressure value starts to decrease and then increases, and then the shift time Δt starts to decrease (shift time Δt 2). ).
That is, as shown in FIG. 6, the deviation time .DELTA.t gradually increases from the deviation time .DELTA.t1 at the bathing start time ti, and then decreases after showing the maximum value .DELTA.t2 at the time tm.
[0019]
In this bathing guide device, the time tm at which the deviation time shows the maximum value Δt2 in a state where the blood vessel is expanded and the blood flow volume is increased is set as a time suitable for bathing where the body is sufficiently warmed up. I am trying to inform the bather.
[0020]
That is, in this bathing guide apparatus, as shown in FIG. 7, the electrocardiogram / pulse wave meter 6 measures the electrocardiogram waveform (S101), and also measures the pulse waveform (S102). The waveform is transmitted to the remote controller 3 and the remote controller 3 calculates the deviation time Δt between them (S103).
Then, a change with time of the deviation time Δt from the start of bathing is obtained, and it is determined whether or not the deviation time Δt has changed from increase to decrease (S104), and when the deviation time Δt has changed from increase to decrease, It is determined that it is time to take a bath, and the bathing person is informed by the notifying means provided in the remote controller 3 that it is time to take a bath.
Note that it is determined that the bathing is in progress when the deviation time Δt from the start of bathing first changes from increasing to decreasing.
[0021]
To notify the bather that the user is taking a bath, the remote controller 3 displays on the display unit 3a for displaying the set bath temperature, the set hot water temperature, and the like, or displays the speaker 3b. It is possible to make a notification by, for example, performing an audio output indicating that it is time to take a bath.
The remote controller 3 calculates a time difference Δt between the electrocardiogram waveform and the pulse waveform, obtains a time-dependent change from the start of bathing of the time difference Δt, and detects an initial maximum value of the time-dependent change. It is not only a calculating means but also a notifying means for notifying when bathing.
[0022]
As described above, the bathing time is calculated and notified from the time difference Δt between the electrocardiogram waveform and the pulse waveform of each bather, which has a correlation with the degree of expansion of the peripheral blood vessels and the blood pressure value. In addition, it is possible to notify the appropriate bathing time according to the body of each bather, and it is possible to prevent hot water and prevent hot flashes and abnormal situations from occurring.
[0023]
In addition, the time of bathing to be determined is the time when the shift time Δt increases from the start of bathing and starts to decrease, that is, the time when the first maximum value appears in the time-dependent change of the shift time Δt. It is possible to accurately determine when the bather's body is warmed due to the thermal action of bathing, and the bather's body is warm, and it is possible to obtain a sufficient bathing effect and prevent hot water, hot flashes and abnormal situations Can be reliably prevented.
[0024]
The detection value for measuring the electrocardiographic waveform is detected by the electrodes 6a, 6b, 6c provided on the left and right inner side surfaces 1a, 1a and the foot side inner side surface 1b of the bathtub 1, and is used for measuring the pulse waveform. The detection value is configured to be detected by the pulse wave sensor 6d disposed at a position in contact with the sole of the bather when the bather takes a natural bathing posture. It is not necessary to wear 6b and 6c and the pulse wave sensor 6d on the body of the bather, the bather is not restrained, and the feeling of comfort during bathing is not impaired.
Further, the pulse wave sensor 6d can detect a pulse wave in the same manner even when the pulse wave sensor 6d is arranged at a position where it comes into contact with the buttocks of the bather when the bather takes a natural bathing posture.
[0025]
Further, as described above, since the magnitude of the time difference Δt between the electrocardiogram waveform and the pulse waveform is inversely proportional to the blood pressure value, in this bathing guide device, the blood pressure equivalent value of the bather from the time difference Δt. Can be obtained.
That is, since the deviation time Δt and the blood pressure value P have a correlation as shown in FIG. 4, when the bather's deviation time Δt takes a certain value, what is the actual blood pressure value? By inputting such data into the remote controller 3 in advance, a blood pressure equivalent value that is a blood pressure value of the bather estimated from the shift time Δt can be obtained.
[0026]
The electrocardiogram waveform and pulse waveform measured by the electrocardiograph / pulse wave meter 6, the heart rate obtained from the electrocardiogram waveform or pulse waveform, and the blood pressure equivalent value are displayed on the display unit 3 a of the remote controller 3 as necessary. Can be displayed.
[0027]
Thus, by allowing the remote controller 3 to display an electrocardiogram waveform, a pulse waveform, a heart rate, and a blood pressure equivalent value, the bather himself can easily grasp these physiological changes during bathing. This makes it possible to more reliably prevent hot flashes and abnormal situations from occurring.
[0028]
Moreover, since the blood pressure equivalent value is obtained based on the time difference Δt between the electrocardiogram waveform and the pulse waveform, the blood pressure can be easily and comfortably prevented from restraining the bather or becoming a burden on the bather. The equivalent value can be obtained.
[0029]
【The invention's effect】
The present invention has the following effects by being configured as described above.
As in claim 1, the electrocardiogram waveform measuring means provided in the bathroom measures the bather's electrocardiogram waveform, the bather's pulse wave measuring means measures the bather's pulse wave, and the heart contracts. The pulse wave propagation time during which the generated pulse wave propagates to the pulse wave measuring means is calculated as a deviation time between the electrocardiogram waveform and the pulse waveform obtained by measurement, and the time of bathing is calculated based on the deviation time. Since it is determined, it is possible to notify the appropriate bathing time according to the body of each bather, and it is possible to prevent hot water and prevent hot flashes and abnormal situations from occurring.
Further, in the bathing guide method, the change over time of the shift time from the start of bathing is obtained, the first maximum value of the time-dependent change value is detected, and the time point when the first maximum value is detected is taken as the time of bathing. Therefore, it is possible to accurately determine when the bather's body is warmed due to the thermal action of bathing, and the bather's body is warmed up. The occurrence of an abnormal situation can be reliably prevented.
[0030]
As in claim 2, an electrode installed in the bathtub, an electrocardiogram waveform measuring means for obtaining an electrocardiogram waveform by processing a detection value from the electrode, a pulse wave measuring means installed in the bathtub, A pulse wave measurement means for processing a detection value from the pulse wave measurement means to obtain a pulse wave, and a pulse wave propagation time in which the pulse wave generated by contraction of the heart propagates to the pulse wave measurement means is expressed as an electrocardiogram waveform. Calculated as a deviation time from the pulse waveform, obtains a change over time of the deviation time from the start of bathing, calculates the first maximum value of the change over time, and the first maximum value of the change over time So that the bather can take a bath when the bath is detected, so that the peripheral blood vessels are expanded by the thermal action of the bath and the bather's body is warmed up, and the bather is informed. It is possible to obtain a sufficient bathing effect and to prevent long baths. The occurrence of or abnormal situation can be reliably prevented.
[0031]
As in claim 3, the bathing guide device can calculate the blood pressure equivalent value representing the estimated value of the blood pressure of the bather by the computing means from the time difference between the peak waveform of the electrocardiogram waveform and the pulse waveform, Since the display means for displaying the blood pressure equivalent value and the heart rate obtained from the electrocardiogram waveform, it is possible for the bather to easily grasp the physiological change during bathing from the blood pressure equivalent value and the heart rate. Thus, it is possible to more reliably prevent the occurrence of hot flashes and abnormal situations.
[0032]
According to a fourth aspect of the present invention, the pulse wave measuring means can detect a pulse wave by contacting the body of the bather, and when the bather takes a natural bathing posture, the pulse wave is measured on the foot of the bather. Since it arrange | positions in the position which contact | abuts, even if it does not equip a bather's body with a pulse wave sensor, it becomes possible for a bather to detect a pulse wave by bathing in the bathtub 1 as usual.
Therefore, the bather is not restrained by the measurement of the pulse wave, and the comfortable feeling at the time of bathing is not impaired.
[Brief description of the drawings]
FIG. 1 is a side view showing a schematic configuration in a bathroom in which a bathing guide device of the present invention is configured.
FIG. 2 is a front sectional view showing a bathtub in the bathroom.
FIG. 3 is a diagram showing a shift time between an electrocardiogram waveform and a pulse waveform.
FIG. 4 is a diagram showing a relationship between a shift time and a blood pressure value.
FIG. 5 is a diagram showing temporal changes in blood pressure values and deviation time during bathing.
FIG. 6 is a diagram showing a maximum value in a change over time of a shift time during bathing.
FIG. 7 is a diagram showing a flow from measurement of an electrocardiogram waveform and a pulse waveform to notification at the time of bathing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bathtub 2 Bath apparatus 3 Remote controller 3a Display part 3b Speaker 5 Bathroom 6 Electrocardiogram / pulse waveform 6a, 6b Electrode 6c Ground electrode 6d Pulse wave sensor

Claims (4)

With measuring the electrocardiographic waveform of a bather by the electrocardiogram measuring means provided in the bathroom, by measuring the pulse wave of bathers by pulse wave measurement means provided in the bathroom, the pulse wave generated by contraction of the heart pulse In a bathing guide method for calculating a pulse wave propagation time propagating to a wave measuring means as a shift time between an electrocardiogram waveform and a pulse waveform obtained by measurement, and determining a bathing time based on the shift time The time difference from the start of bathing of the deviation time is obtained, the first maximum value of the time-dependent change value is detected, and the time point at which the first maximum value is detected is taken as the time of bathing Guide method. An electrode installed in a bathtub, and electrocardiogram measuring means for determining the processing to the electrocardiographic waveform detected value from the electrode, and the pulse wave measuring means which is installed in a bathtub, from the pulse wave measuring means A pulse wave measuring means for processing a detected value to obtain a pulse wave, and a pulse wave propagation time for the pulse wave generated by contraction of the heart to propagate to the pulse wave measuring means is a time difference between the electrocardiogram waveform and the pulse waveform. calculated as to obtain the variation with time from the start of the bathing said deviation time, arithmetic means for detecting a first maximum value of the該経time changes, bathing upon detecting the first maximum value of the time change value A bathing guide device comprising a notification means for prompting a person to take a bath. The bathing guide device can calculate a blood pressure equivalent value representing an estimated value of the blood pressure of a bather from the time difference between the peak wave of the electrocardiogram waveform and the pulse waveform by the computing means, and the blood pressure equivalent value and the heart rate The bathing guide device according to claim 2, further comprising display means for displaying a heart rate obtained from the radio wave shape. The pulse wave measuring means is capable of detecting a pulse wave by contacting the body of the bather, and is disposed at a position that contacts the foot of the bather when the bather takes a natural bathing posture. The bathing guide device according to claim 2, wherein

Images