JP2001340307A - Unrestricted living body data detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an unrestricted living body data detector for confirming the presence of living body on a living body data detection mat to measure the blood flow, heart rate, respiration and bodily temperature of the living body to analyze these living body data and informing a third person of living body data recognized to be abnormal to prevent a serious accident. SOLUTION: The unrestricted living body data detector is equipped with a means for arranging sensors for detecting the heart rate and respiration of a human body during sleeping on a matrix, a means for delineating a necessary heart rate signal among signals showing living body data included in the sensors, a means for measuring the shift of one pair of heart rate signals, a means for calculating a blood flow from the shift value and the distance between the sensors, a means for two-dimensionally or three-dimensionally displaying respective living body data, a means for copying these data and a means for analyzing the abnormality of the living body data. When a person is present on the data detection mat and the analyzing result of the living body data is recognized to be abnormal, an alarm signal is outputted to report abnormality to the outside.

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 value of blood pressure, heart rate / respiration measurement, respiratory arrest, abnormal heart rate, irregular pulse, turning over, pain, getting out of bed, body temperature, etc. It is an object of the present invention to provide an unrestricted biological information detecting device capable of automatically managing the information and preventing illness and sudden serious accidents.

[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 vibration sensors, which are detection elements for measuring blood flow, An unconstrained biological information detecting device comprising a wiring means for extracting a biological information signal including a heartbeat signal from a sensor, and an unconstrained biological information detecting mat having means for protecting the vibration sensor with a protective material.

Further, the configuration of the second invention comprises a means for arranging a plurality of gyro sensors as detection elements for measuring a blood flow, and a wiring means for extracting a biological information signal including a heartbeat signal from each gyro sensor. An unrestricted biological information detecting device is provided with an unrestricted biological information detecting mat having means for protecting the gyro sensor with a protective material.

[0007] Further, according to a third aspect of the present invention, there is provided means for arranging a plurality of acceleration sensors, which are detection elements for measuring a blood flow, and wiring means for extracting a biological information signal including a heartbeat signal from each acceleration sensor. And an unrestricted biological information detecting mat having means for protecting the acceleration sensor with a protective material.

Further, in the configuration of the fourth invention, means for arranging a plurality of magnetic thin film sensors which are detection elements for measuring blood flow, and extracting a biological information signal including a heartbeat signal from each magnetic thin film sensor. An unconstrained biological information detection device comprising an unrestricted biological information detection mat having wiring means and means for protecting the magnetic thin film sensor with a protective material.

The fifth aspect of the present invention provides a means for arranging a plurality of amorphous wire sensors which are sensing elements for measuring blood flow, and a living body including a heartbeat signal from each amorphous wire sensor. An unconstrained biological information detection device comprising: a wiring means for extracting an information signal; and an unconstrained biological information detection mat having means for protecting the amorphous wire sensor with a protective material.

According to a sixth 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 the alarm output unit that notifies the abnormality to the outside when the blood flow / heart rate abnormality judgment unit judges that the abnormality is present.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 the ground. 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 seventh 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 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.

Also, in the configuration of the eighth invention, the input of the heartbeat signal extraction unit of the sixth and seventh inventions is connected to the input of the respiration extraction unit,
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.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, the first to fifth 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 sensor arrangement method 2 in the biological information detecting mat 9 of the unconstrained biological information detecting device according to the first to fifth 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 unconstrained biological information detecting apparatus according to the first to fifth 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.

Embodiment 4 Hereinafter, a sixth embodiment 4 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 section 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 calculating section 25 has a display section 27 for displaying blood flow values, heart rate values, heart rate waveforms output from the blood flow calculating section 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 heartbeat level only when there is a person 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 inform a third party of abnormal biological information. It is connected to the correspondence type automatic notification unit 32.

Further, the above-mentioned configuration may 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, or 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 seventh 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 for calculating a relative blood flow value obtained by multiplying a blood flow value by a heartbeat signal level value in the blood flow calculation unit, displaying and judging abnormalities, and notifying a third party when abnormalities occur is also provided. Including.

Embodiment 6 Hereinafter, an eighth 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 calculating 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 abnormal analysis, and the 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.

When the respiratory abnormality judging unit 36 judges an abnormality, the alarm output unit 31 informs a third party of abnormal biological information. 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 calculation unit (cpu) 25 detects the heartbeat / breathing arrhythmia, pain, turnover, and leaving the bed of the human body, and detects abnormalities in these biological information by the alarm output unit 31 and the automatic notification unit 37 by a third party. The function of making a report is included.

Further, there may be a case where a plurality of living body information detecting devices according to the sixth embodiment, in which the above-described embodiments are added to the seventh and eighth embodiments, are managed by a personal computer installed in a nurse station.

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

[0033]

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.

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.

The unconstrained living body information detecting device of the present invention allows three-dimensional viewing of the human body's blood flow, heartbeat, and other living body information, so that there is no new 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 heartbeat, 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 that 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 / nursing efficiency is improved.

In addition, the unrestricted living body information detecting device of the present invention can notify an 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 a
n 14 sensor YnXo 34 sensor b
n 15 sensor YnXn 35 respiratory signal extraction unit 16 output signal YoXo 36 respiratory abnormality determination unit 17 output signal YoXn 37 automatic notification 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) A61B 5/11 A61B 5/02 321T A61G 7/05 5/10 310A 12/00 A61G 7/04

Claims (8)

[Claims] An unconstrained biological information detecting device comprising a biological information detecting mat having means for arranging a plurality of vibration sensors, which are detectors for measuring a blood flow value of a human body without restriction. 2. An unrestricted biological information detecting device comprising a biological information detecting mat having means using a plurality of detector gyro sensors arranged in the biological information detecting mat of the unrestricted biological information detecting device according to claim 1. 3. An unrestricted living body information detecting device comprising a living body information detecting mat having means for using an acceleration sensor for a plurality of detectors arranged on the living body information detecting mat of the unrestricted living body information detecting device according to claim 1. 4. An unrestricted living body provided with a biological information detecting mat having means for using a magnetic thin film sensor having an MI effect for a plurality of detectors arranged on the biological information detecting mat of the unrestricted biological information detecting device according to claim 1. Information detection device. 5. An unconstrained biological information detecting mat having a means for using an amorphous wire sensor having an MI effect for a detector arranged in the biological information detecting mat of the unconstrained biological information detecting device according to claim 1. Biological information detection device. 6. A means for extracting 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 any one of claims 1 to 5, and a pair of two sensors,
A means for measuring a deviation value of a heartbeat signal extracted from each sensor of one pair, a means for calculating a blood flow value by dividing a distance L between the sensors by a deviation value of the heartbeat signal, a blood flow value, a heartbeat value, a heartbeat waveform, Means for displaying a nursing record, means for recording a blood flow value, a heart rate value, a heartbeat waveform, date and time, and nursing record, means for determining an abnormality in a blood flow value and a heart rate value, and means for notifying an abnormality determination result to the outside An unconstrained biological information detecting device, comprising: 7. A means for pairing two sensors for detecting a heartbeat signal with the unconstrained biological information detecting device according to claim 6, switching output of the heartbeat signal sequentially for each pair, and sequentially measuring a deviation value of the heartbeat signal; An unconstrained biological information detecting device, characterized by adding means for three-dimensionally displaying a blood flow value and a heartbeat value. 8. 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 6, and a respiratory waveform, a respiratory value, and a peak value of the respiratory waveform. 8. An unrestricted biological information detecting device according to claim 6, wherein a means for displaying a time series and a means for judging a respiratory abnormality and outputting a result of the determination to the outside are added to the unrestricted biological information detecting device according to claim 6. . [0001]