JP2001353134A - Non-restricted biological information detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an serious accident by detecting of a human body on a biological information detecting mat, measuring the bloodstream, heartbeat, respiration and body temperature of the human body and analysing the biological information thereof and informing a third person if abnormality is found. SOLUTION: This detector has a means for arraying cardiac sound microphone sensors for detecting the heartbeat and respiration of the human body while in bed on a matrix, a means 23 for extracting the necessary heartbeat signals in the biological information included in the sensors, a means 24 for measuring the deviation in the heartbeat signals of one pair, a means 25 for determining the bloodstream from this deviation value and the distances between the sensors, a means 27 for two-dimensionally or three-dimensionally displaying respective pieces of the biological information, a means 28 for copying such information and a means 8 for analyzing the abnormality of the biological information. When a person exists on the information detecting mat and the results of the biological information analysis are admitted to be abnormal 30, a warning signal for announcing the abnormality to the outside is outputted 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention is intended to prevent sudden and serious accidents during bedtime for the elderly and the sick, create a comfortable treatment environment, and improve the efficiency of nursing in an aging society in the future. The sick or
Elderly people can sleep while wearing clothes, and measure blood flow, heart rate / respiratory rate, heart rate / respiratory waveform, blood flow value, heart rate value, heart rate waveform, respiration Values, time series display of peak value of respiratory waveform and abnormality detection,
It can perform pain detection, turnover detection, leaving bed detection, arrhythmia detection, three-dimensional display of biological information, and body temperature measurement. In addition, when a leaving-bed detection function for preventing wandering is activated or when a biological abnormality is automatically determined, a caregiver or nurse can be notified by sound or light. In addition, a personal computer installed at a nurse station manages a plurality of sensors, and a two-way communication between elderly homes and remote places manages biometric information to prevent elderly people from lonely death. The present invention also relates to an unrestricted biological information detecting device for preventing an accident due to sudden infant death syndrome.

[0002]

2. Description of the Related Art Conventionally, blood pressure is measured by either a manual type or an automatic type. However, it is necessary to wear a sphygmomanometer for each measurement. Was a heavy burden. In addition, there is a problem that accurate measurement cannot be performed if blood pressure is measured with consciousness.

[0003]

As described above, since blood pressure measurement is a great burden for elderly sick people, the elderly themselves are distant in their vital checks, but vital checks performed daily or intermittently are important. Since it is the key to preventing accidents beforehand, it is important to continue measurement that matches the life cycle as much as possible.

SUMMARY OF THE INVENTION The present invention has been made in consideration of problems such as troublesome intermittent measurement due to a conventional restraint and errors due to psychological influence at the time of measurement. Analysis of blood flow, sensor output level, relative values of other factors' blood pressure, heart rate and respiration measurement, respiratory arrest, abnormal heart rate, irregular pulse, turn over, pain, getting out of bed, body temperature, etc., and analyze the elderly, sick, infants It is an object of the present invention to provide an unrestricted living body information detecting device which can automatically manage the living body information and prevent a disease or a sudden serious accident.

[0005]

Means for Solving the Problems As described above, the first invention of the present application for solving the problems is a means for arranging a plurality of heart sound microphones on an air mat for measuring blood flow, and each heart sound microphone. And a wiring means for extracting a biological information signal including a heartbeat signal from the apparatus, and an unrestricted biological information detecting mat having means for protecting a heart sound microphone with a protective material.

Further, the second aspect of the present invention provides a means for arranging a plurality of heart sound microphones on a mat filled with a liquid for measuring blood flow, and a wiring for extracting a biological information signal including a heartbeat signal from each heart sound microphone. And an unrestricted biological information detecting mat having means for protecting the heart sound microphone with a protective material.

[0007] Further, the configuration of the third invention is a means for arranging a plurality of heart sound microphones on an elastic material in order to measure a blood flow, and a wiring means for extracting a biological information signal including a heartbeat signal from each heart sound microphone. An unrestricted biological information detecting device is provided with an unrestricted biological information detecting mat having means for protecting a heart sound microphone with a protective material.

According to a fourth aspect of the present invention, there is provided means for arranging a plurality of strain gauges on a liquid-filled mat for measuring blood flow, and wiring means for extracting a biological information signal including a heartbeat signal from each strain gauge. An unconstrained biological information detection device comprising an unconstrained biological information detection mat having means for protecting a strain gauge with a protective material.

According to a fourth aspect of the present invention, there is provided an unconstrained biological information detecting device for measuring a blood flow, wherein a plurality of sensors arranged in a biological information detecting mat are adjacent to each other in a column direction. Two sensors are included in each sensor output signal. Each of the heartbeat signal extraction units 1 and 2 for extracting a heartbeat signal is connected to an input of a signal shift measurement unit for measuring a shift of the heartbeat signal.
An output of the signal deviation measuring unit is connected to an input of a blood flow computing unit that derives a blood flow from the signal deviation value measured by the signal deviation measuring unit and the distance L between the two sensors. A display unit for displaying values, heart rate values, heart rate waveforms, and nursing records,
A printer that records blood flow values, heart rate values, heart rate waveforms, and dates, and is connected to the input of a blood flow / heart rate abnormality determination unit that determines abnormalities in blood flow values and heart rate values, and outputs from the blood flow / heart rate abnormality determination unit Is connected to the input of an alarm output unit that informs the abnormality to the outside when the blood flow / heart rate abnormality judgment unit judges that it is abnormal.The output of the alarm output unit is a buzzer, lamp, It is connected to an automatic information communication system using a communication line for transmitting information to a remote place. The output of the human body detector that detects the presence / absence on the biometric information detection mat is determined as an enable signal so that the blood flow / heart rate abnormality judgment function works only when a person is on the biometric information detection mat. Connected. Further, in the case of one or more pairs, there is provided an unconstrained biological information detecting device comprising means for switching each sensor output by a multiplexer to obtain a blood flow value as described above.

According to a fifth aspect of the present invention, a multiplexer for switching a sensor output is connected between the biological information detecting mat unit and the heartbeat signal extracting units 1 and 2, and a blood flow value, a heartbeat value and a heartbeat value are connected to the display unit. An unconstrained biological information detecting device, comprising a display unit having a three-dimensional display function of a waveform. The sensor b2 is connected to the input of the biological information analyzer 8 and the sensor distance L10 from the sensor b2 to the sensor n as described above.
Each sensor is arranged at the interval of, and each sensor is connected to the input of the biological information analyzer 8.

In a sixth aspect of the present invention, the input of the heartbeat signal extractor of the fourth and fifth aspects is connected to the input of the respiratory extractor,
The output of the respiratory signal extraction unit is connected to the input of the blood flow calculation unit (CPU), the output of the blood flow calculation unit is connected to the input of the display unit and the respiratory abnormality determination unit, and the output is connected to the input of the alarm unit. The output of the display unit and the alarm unit is connected to the input of the automatic notification unit, and the output of the automatic notification unit is provided with means for performing bidirectional communication with biological information between remote locations via a communication line. Restricted biological information detection device.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, the first to third embodiments of the present invention will be described.
The sensor arrangement method 1 in the biological information detecting mat 9 of the unconstrained biological information detecting device according to the first embodiment will be described. In FIG. 1, a sensor a11 for detecting a blood flow of a human body on the biological information detection mat 9 is connected to an input of the biological information analyzer 8,
The sensor b2 similar to that described above is arranged such that the distance L
It is provided at the position 10 and connected to the input of the biological information analyzer 8.

Embodiment 2 Hereinafter, a method 2 of arranging sensors in the biological information detecting mat 9 of the unrestricted biological information detecting device according to the first to third embodiments 2 of the present invention will be described. In FIG. 2, the sensors for detecting the blood flow of the human body on the biological information detecting mat 9 are arranged in tandem, the sensor a1 is connected to the input of the biological information analyzer 8, and the sensor b2 is located at a distance L9 between the sensor a1 and the sensor. Are connected to the input of the biological information analyzer 8, and each sensor is arranged at an interval of the inter-sensor distance L 10 from the sensor b 2 to the sensor n in the same manner as described above, and each sensor is connected to the input of the biological information analyzer 8.

Embodiment 3 Hereinafter, a method 3 of arranging sensors in the biological information detecting mat 9 of the unrestricted biological information detecting device according to the first to third embodiments of the present invention will be described. In FIG. 3, the sensors for detecting the blood flow of the human body on the biological information detection mat 9 are arranged in a matrix, and the sensor YoXo10 is connected to the input of the biological information analyzer 8, and the sensor YoXn1
1 and the sensors at regular intervals to the sensor YoXo10 between the X-direction are arranged, each sensor is connected to the input of the biological information detector, sensor _Y 1 Xo12 biological information analysis provided from sensor YoXo10 the position of the distance between the sensors L9 Each sensor is connected to the input of the sensor 8, and each sensor is disposed between the sensors Y ₁ Xo 12 and YnXo 14 at the inter-sensor distance L 9 in the Y direction, and each sensor is connected to the input of the biological information analyzer 8.

Fourth Embodiment Hereinafter, a fourth embodiment of the present invention will be described.
Will be described. FIG. 4 is a schematic block diagram of the fourth embodiment. FIG. 5 shows Embodiment 4.
6 is a timing chart for explaining the operation of FIG. As shown in FIG. 4, the biological information detection output of the human body on the sensor a1, which is one of a plurality of pairs arranged in the biological information detection mat 9 of the fourth embodiment (a) is shown in FIG. The heartbeat signal (b) is extracted from the heartbeat signal extraction unit A22 from the biological information detection output (a) and is input to the signal shift measurement unit 24. A heartbeat signal (d) is extracted from the heartbeat signal extraction unit B23 from the human body information detection output (c) on the sensor b, and the heartbeat signal (b) is input to the signal shift measurement unit 24. ) And (d) are measured by a phase difference method, and the blood flow calculation unit 25 input to the blood flow calculation unit 25 stores the distance L9 between the sensors in advance, and the distance L9 between the sensors is used as a signal. The blood flow v is obtained by the equation (1) by dividing by a phase difference (c) = △ θ, which is a signal deviation value obtained by the deviation measuring unit, and multiplying by a coefficient k as necessary. V = L / △ θ · k- (1) The measurement of the heart rate is also performed by the blood flow calculation unit and output to the subsequent stage.

Further, the signal deviation measuring unit is not limited to the phase difference method. For example, a method based on a time difference between the heartbeat signals (b) and (d), a method based on a frequency difference between the heartbeat signals (b) and (d), Doppler and other heart rate signals (b) and (d)
For example, a method of measuring a deviation value can be used.

The blood flow calculation unit 25 includes a display unit 27 for displaying blood flow values, heart rate values, heart rate waveforms output from the blood flow calculation unit 25, and nursing records and dates input from an external computer. Are connected to a printer 28 necessary for printing out the contents displayed on the display unit 27, and a blood flow / heart rate abnormality determining unit 30 for analyzing an abnormality of a human body from a blood flow value / heart rate / heart rate waveform level.

The output of the human body detecting section 29 for detecting the presence or absence of a human body on the biological information detecting mat 9 analyzes abnormalities in blood pressure, heart rate and heart rate only when a person is on the biological information detecting mat 9. The blood flow / heart rate abnormality judging section 30 is connected to the blood flow / heart rate abnormality judging section 30 as an intrinsic signal that functions.

When the blood flow / heart rate abnormality judging section 30 judges that there is an abnormality, an alarm output section 31 has a buzzer lamp, a separate display section, and an Internet for remote areas to notify a third party of abnormal biological information. It is connected to the correspondence type automatic notification unit 32.

Further, the above-mentioned configuration can be constituted by a dedicated IC, hardware, and software.

Also, a system for centrally managing a plurality of fifth and sixth unconstrained biological information detecting devices of the present invention in one place in a hospital, the elderly, and other facilities requiring biological management is included. Things.

The present invention also includes a system for comprehensively managing one or a plurality of biological information detecting devices at a remote place using the Internet.

Embodiment 5 Hereinafter, a fifth embodiment 5 of the present invention will be described.
Will be described. FIG. 6 is a schematic block diagram of the fifth embodiment. FIG. 5 shows a fifth embodiment.
6 is a timing chart for explaining the operation of FIG. In FIG. 5, the same components as those in FIG. As shown in FIG. 5, two sensors adjacent in the column direction among a plurality of sensors arranged in the biological information detecting mat 9 of the fifth embodiment are regarded as one pair,
The PU is connected to an input of a multiplexer for sequentially switching the sensor output for each pair. The output signal (a) of the sensor a1 is input to the heartbeat signal extraction unit 1 via a multiplexer, while the output signal (c) of the sensor b2 is also input to the heartbeat signal extraction unit 2 via a multiplexer. The output signal (c) is input, the input is sequentially switched at the timing of the CPU of the blood flow calculation unit 25, and the sensors a33 and bn34, which are the last pair in the column direction, are switched. Switch to sensor b2 pair.

The output of the heartbeat signal extractor 122 and the block diagram after the heartbeat signal extractor 223 are the same as those of the fourth embodiment described above, and the description is omitted. The operation is the same as that of the previous embodiment except that a three-dimensional display function of a blood flow value, a heartbeat value, and a heartbeat waveform is added to the display of the display unit 27, and thus the description is omitted.

An alarm output unit that calculates a relative blood flow value obtained by multiplying a blood flow value by a heartbeat signal level value in a blood flow calculation unit, displays the display, determines an abnormality, and notifies a third party when an abnormality occurs is provided. Including.

Embodiment 6 Hereinafter, a sixth embodiment of the present invention will be described.
Will be described. FIG. 7 is a schematic block diagram of the sixth embodiment. 7, the same parts as those in FIGS. 4 and 6 are denoted by the same reference numerals in FIG. 8, and the description thereof will be omitted. 7 and 8, the heartbeat signal extraction unit B2
The input of the respiration signal extraction unit 35 is connected to the input of 3 and the respiration signal is extracted by the respiration signal extraction unit 35 from the biological information detection output (a) of FIG.
The blood flow calculation unit (c) input to the blood flow calculation unit (cpu) 25
pu) 25 to calculate the respiratory value, and display the respiratory value and respiratory waveform, respiratory waveform / respiratory peak value on the display unit 27 in time series.

The output of the blood flow calculation unit (cpu) 25 is connected to the input of the respiratory abnormality judging unit 36, and the respiratory value, respiratory waveform, respiratory waveform / respiratory peak value abnormality analysis and biometric information detection mat 9 are output. The respiratory abnormality determination unit 36 uses the output of the human body detection unit 29 for detecting the presence or absence of the human body as an enable signal.

In order to inform a third party of abnormal biological information when the breathing abnormality judging section 36 judges an abnormality, the alarm output section 31 has a buzzer lamp, a separate display section, and a remote location-based automatic communication system. It is connected to the unit 37 and communicates other biological information including heartbeat, blood flow and respiration in two directions, while notifying abnormalities.

The blood flow calculator (cpu) 25 detects the heartbeat and respiratory arrhythmia of the human body, pain, turning over, and getting out of bed. The function of making a report is included.

In some cases, a plurality of living body information detecting devices according to the sixth embodiment in which the above-described embodiments are added to the fifth and sixth embodiments of the present invention are used to manage the living body information using a personal computer installed in a nurse station.

The above description is based on a dedicated IC, hardware, software,
It is also possible to configure with a DSP.

[0032]

As described above, the information detection device according to the present invention can measure the blood flow of the human body on the biological information detection device mat without restraint. Since there is little change in biological information, it is gentle to humans and the measured value is accurate.

Further, in the management of the biological information of the human body in the unrestricted biological information detecting device of the present invention, the protection of privacy is ensured.

Further, since the unrestricted living body information detecting apparatus of the present invention can three-dimensionally view the blood flow, heartbeat and other living body information of the human body, it is possible to obtain an unprecedented living body information, living body abnormality management / measurement device. It can be expected to be applied as

The unrestricted living body information detecting device of the present invention can measure heart rate, blood flow, respiration, and analyze abnormalities with one sensor.
It is economical and environmentally friendly because it can manage arrhythmia, turning over, analysis of pain situation, etc., body temperature measurement and other biological information.

Further, in the unrestricted biological information detecting device of the present invention, when an abnormality is found in the biological information which can be analyzed by the present device, the alarm is automatically activated, and a third party can be notified by sound or light. Therefore, a serious accident can be prevented.

The unrestricted living body information detecting device of the present invention can manage a plurality of units comprehensively by a personal computer,
Nursing efficiency is improved and the workload is reduced.

Further, the unrestricted living body information detecting device of the present invention can perform comprehensive management from a remote place via the Internet, so that the care and nursing efficiency is improved.

In addition, the unrestricted living body information detecting device of the present invention can notify the abnormality of a solitary elderly person to the outside via a communication line, thereby preventing lonely death.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically illustrating Embodiment 1 of the present invention.

FIG. 2 is a block diagram schematically showing a second embodiment of the present invention.

FIG. 3 is a block diagram schematically showing a third embodiment of the present invention.

FIG. 4 is a block diagram schematically showing a fourth embodiment of the present invention.

FIG. 5 is a timing chart for explaining the operation of Embodiment 4.5 of the present invention.

FIG. 6 is a block diagram schematically showing a fifth embodiment of the present invention.

FIG. 7 is a block diagram schematically showing a sixth embodiment of the present invention.

FIG. 8 is a block diagram schematically showing a sixth embodiment of the present invention.

[Explanation of symbols]

1 sensor a 21 output signal Y
nXn 2 sensor b 22 heart rate signal extraction unit A 3 output signal a 23 heart rate signal extraction unit B 4 output signal b 24 signal shift measurement unit 5 sensor n 25 blood flow calculation unit 6 output signal n 26 external computer 7 biometric information detection mat 27 display unit 8 the biological information analyzer 28 printer 9 sensor distance L 29 human body detection unit 10 sensor YoXo 30 blood-heart anomaly judgment section 11 sensor YoXn 31 alarm output unit 12 a sensor _Y 1 Xo 32 multiplexer 13 sensor _Y 1 Xn 33 Sensor an 14 Sensor YnXo 34 Sensor bn 15 Sensor YnXn 35 Respiratory signal extraction unit 16 Output signal YoXo 36 Respiratory abnormality determination unit 17 Output signal YoXn 37 Automatic reporting unit 18 Output signal Y ₁ Xo 19 Output signal Y ₁ Xn 20 Output signal YnXo

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61G 7/05 A61G 7/04

Claims (6)

[Claims] 1. An unconstrained biological information detection device comprising a biological information detection mat having means for arranging a plurality of detectors each having a heart sound microphone sensor mounted on an air mat in order to measure a blood flow value of a human body without restriction. apparatus. 2. An unrestricted living body information detecting device comprising a living body information detecting mat having means for arranging a heart sound microphone in a living body information detecting mat of the unrestricted living body information detecting device in a liquid. 3. An unrestricted living body information detecting device comprising a living body information detecting mat having means for arranging a heart sound microphone in an elastic material in the living body information detecting mat of the unrestricted living body information detecting device according to claim 1. 4. A means for extracting a heartbeat signal from a heartbeat signal from a plurality of output signals arranged on a biological information detecting mat of the unconstrained biological information detecting device according to claim 1; Means for measuring the deviation value of the heartbeat signal extracted from each sensor, means for calculating the blood flow value by dividing the distance L between the sensors by the deviation value of the heartbeat signal, blood flow value, heartbeat value, heartbeat waveform, care record Means for displaying the blood flow value,
Means for recording a heart rate value, a heart rate waveform, a date and time, a nursing record,
An unconstrained biological information detecting device, comprising: means for judging an abnormality in a blood flow value and a heart rate value; and means for notifying an abnormality judgment result to the outside. 5. A means for pairing two sensors for detecting a heartbeat signal in the unconstrained biological information detecting device according to claim 4, sequentially switching output of the heartbeat signal for each pair, and sequentially measuring a deviation value of the heartbeat signal; An unconstrained living body information detecting device, characterized by adding means for displaying a blood flow value and a heartbeat value three-dimensionally. 6. A means for extracting a respiratory signal from a plurality of output signals arranged on a biological information detecting mat of the unconstrained biological information detecting apparatus according to claim 4, wherein the respiratory waveform, the respiratory value, and the peak value of the respiratory waveform are obtained. 6. An unrestricted biological information detecting device according to claim 4, wherein a means for displaying a time series and a means for judging a respiratory abnormality and outputting the judgment result to the outside are added to the unrestricted biological information detecting device according to claim 4. . [0001]