WO2005034750A1 - 睡眠時呼吸状態測定装置 - Google Patents
睡眠時呼吸状態測定装置 Download PDFInfo
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- WO2005034750A1 WO2005034750A1 PCT/JP2004/014829 JP2004014829W WO2005034750A1 WO 2005034750 A1 WO2005034750 A1 WO 2005034750A1 JP 2004014829 W JP2004014829 W JP 2004014829W WO 2005034750 A1 WO2005034750 A1 WO 2005034750A1
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- Prior art keywords
- signal
- measuring device
- respiratory condition
- sleep
- condition measuring
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4806—Sleep evaluation
- A61B5/4818—Sleep apnoea
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0816—Measuring devices for examining respiratory frequency
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/087—Measuring breath flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
Definitions
- the present invention relates to a sleep respiratory condition measuring device that measures a respiratory condition of a subject during sleep.
- the temperature such as room temperature changes with the passage of time, so that the thermistor is greatly affected and the respiratory state of the subject can be accurately determined. It was difficult to measure.
- the present invention has been made in view of such circumstances, and is not affected by temperature changes such as room temperature, and can accurately measure a subject's respiratory state during sleep while sleeping. It is an object to provide a measuring device.
- various respiratory condition measuring devices for examining the respiratory condition of a subject are provided, and are effective means for examining the progress of respiratory failure, sleep apnea, and the like. Is attracting attention.
- this type of respiratory condition measuring device can be used for various biological information of a subject. Information is obtained, and the respiratory condition is inspected based on the biological information. For example, those that measure the temperature, humidity, and air pressure of the breath when breathing, the amount and concentration of carbon dioxide contained when breathing, or the breathing sound are known. Also, as one of such respiratory condition measuring devices, a biological information measuring device capable of examining a respiratory condition during sleep is known.
- the biological information measuring device is attached to a fingertip to measure oxygen saturation, pulse rate, and the like.
- An oxygen saturation finger sensor a nasal breathing device that detects respiratory temperature change by detecting respiration of the nose or mouth. It is equipped with a flow sensor having a temperature detection unit and a temperature detection unit for inhalation, a microphone attached to the throat to detect tracheal sounds and irritating sounds, and the like. It analyzes the average pulse rate and the number of apnea times per unit time.
- the biological information measuring device the number of apnea times during sleep and the like can be easily grasped, and this is an effective means for examining the progress of the sleep apnea state.
- the biological information measuring device described in Patent Document 1 described above arranges the temperature detection unit for nasal breath at the entrance of the nostril and the temperature detection unit for breathing at the center of the mouth.
- the sensor needs to be attached under the nose with an adhesive tape or the like.
- the subject was highly restrained.
- the present invention has been made in view of such circumstances, and an object thereof is to examine a respiratory condition in a state where the restraint on a subject is low and the influence of body movement is reduced.
- the present invention provides a respiratory condition measuring device capable of performing the above.
- various respiratory condition measuring devices for examining a subject's respiratory condition are currently provided, and are effective means for examining the progress of respiratory failure or sleep apnea. Is attracting attention.
- this type of respiratory condition measuring device acquires various biological information of a subject and inspects the respiratory condition based on the biological information. For example, those that measure the temperature, humidity, and air pressure of the breath when breathing, the amount and concentration of carbon dioxide contained when breathing, or the breathing sound are known.
- One such respiratory condition measuring device As a biological information measuring device capable of examining a respiratory state during sleep is known
- the biological information measuring device includes, for example, an oxygen saturation finger sensor, a flow sensor, or a microphone.
- the oxygen saturation finger sensor is attached to a fingertip to measure oxygen saturation, pulse rate, and the like.
- the flow sensor detects a change in the temperature of the respiratory gas by detecting respiration of the nose or mouth.
- the microphone is attached to the throat and detects tracheal and snoring sounds.
- the biological information measuring device can analyze the average value of oxygen saturation, the average value of the pulse rate, the number of apnea times per unit time, and the like based on the detection results.
- the biological information measuring device the number of apnea times during sleep and the like can be easily grasped, and this is an effective means for examining the progress of the sleep apnea state.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a respiratory condition measuring device capable of easily detecting an obstruction position in an airway and inspecting a respiratory condition. provide.
- this type of inspection device As an inspection device used for such a purpose, there is a flow sensor for respiration detection which is attached under the nose of a subject with an adhesive tape or the like. This flow sensor is attached to the device body. The device body is attached to the wrist of the subject (for example, see Patent Document 1).
- this type of inspection device also includes a chest belt for detecting fluctuations, a finger sensor for detecting oxygen saturation, and the like. It is transmitted to the main unit via the connection cable.
- a processing device that analyzes a detection result is installed at a location away from the subject.
- the detection result is transmitted to the processing device using wired communication or wireless communication (for example, refer to Patent Document 2: JP-A-2003-126064).
- the present invention has been made in view of such a problem, and an object of the present invention is to provide a sleep-time respiratory state measuring device that does not suppress the fluctuation of a subject. Another object of the present invention is to reduce the power consumption of the sleep respiratory condition measuring device.
- the present invention provides the following means.
- a first invention includes a detection unit that detects a wave signal in air in a body cavity, and a respiration information analysis unit that analyzes respiration information from information of the wave signal detected by the detection unit.
- the wave signal is a fluctuation signal of a respiratory air pressure of the subject
- the detection unit is provided at least one of a nostril or a mouth of the subject. It is equipped with a respiratory sensor that is attached and detects a change in air pressure near the nostril or mouth accompanying respiration.
- the subject wears the device on at least one of the nostril and the mouth before going to bed, and the subject breathes at the time of going to bed, so that the nostril or mouth At this time, a change in air pressure caused by the inflow and outflow is detected by the respiration sensor. Then, based on the information on the change in air pressure from the respiration sensor, the respiration information analysis means analyzes the respiratory state of the subject. Is done.
- a third invention is the sleep respiration state measuring apparatus according to the second invention, wherein the respiration sensor detects air pressure intensity simultaneously with the air pressure change.
- the respiratory sensor detects the air pressure intensity simultaneously with the air pressure change.
- a fourth invention is the sleep respiration state measuring apparatus according to the second invention, wherein the respiration sensor is a pressure sensor.
- the pressure sensor detects the air pressure change or the air pressure change and the air pressure intensity.
- a fifth invention is the sleep respiration state measuring device according to the second invention, wherein the respiration information analysis means analyzes the respiration cycle by the air pressure change, Second respiratory information analyzing means for analyzing a respiratory flow rate based on the change and the air pressure intensity.
- the respiratory cycle is analyzed based on the air pressure change by the first respiratory information analyzing means, and the air pressure change and the respiratory cycle are analyzed by the second respiratory information analyzing means.
- the respiratory flow is analyzed based on the air pressure intensity.
- a sixth invention is the sleep respiration state measuring apparatus according to the second invention, further comprising a body movement sensor for detecting a body movement of the subject during sleep, and body movement information detected by the body movement sensor. And a respiration information correcting means for correcting the respiration information based on According to the sleep-time respiratory state measuring device according to the present invention, noise may be generated in the respiration information due to body movements caused by the subject turning over during sleep, etc. A body movement is detected, and based on the body movement information, the respiratory information correcting means removes noise accompanying the body movement in the breath information.
- a seventh invention is the sleep respiration state measuring device according to the second invention, wherein the body motion sensor is provided integrally with the respiration sensor.
- An eighth invention is the sleep respiration state measuring apparatus according to the second invention, wherein the body motion sensor is an acceleration sensor.
- the acceleration sensor detects a body movement of the subject during the sleep, such as turning over.
- a ninth invention is directed to the sleep respiration state measuring apparatus according to the first invention, wherein the wave signal is a biological signal corresponding to respiration, and the detection unit is a device for wearing in an ear.
- the respiratory information analyzer includes a wearer and a sensor that detects a biological signal corresponding to respiration, and the respiratory information analyzer includes a biological signal measuring unit that measures a respiratory state based on the biological signal detected by the sensor.
- the detection unit detects a biological signal corresponding to respiration in the ear, for example, a change in air pressure or air vibration, and detects the biological signal detected by the detection unit.
- the measuring means measures the respiratory state of the subject based on the measurement.
- the breathing state can be easily inspected simply by attaching the detection unit to the ear during sleep.
- the respiratory condition can be inspected by installing the detection unit in the ear instead of being worn around the mouth or nose as in the past, the feeling of restraint can be reduced and the possibility of being taken by turning over etc. Is reduced.
- the detection unit since the detection unit is attached to the ear, the breathing state can be reliably performed in the surrounding environment, for example, in the condition that it is not easily affected by the surrounding temperature or body movement. Can be detected.
- a tenth invention provides the sleep respiration state measuring device according to the ninth invention, wherein the sensor is a vibration sensor that detects vibration in the ear.
- the detection unit can detect the air vibration in the ear corresponding to the respiration, for example, the vibration in the frequency range from OKHz to 50 KHz, by the vibration sensor.
- An eleventh invention provides the sleep respiration state measuring device according to the ninth invention, wherein the sensor is a pneumatic pressure sensor for detecting an air pressure in an ear.
- the detection unit includes the air pressure sensor.
- the air pressure in the ear corresponding to the breathing can be detected.
- a twelfth invention provides the sleep respiratory condition measuring device according to the ninth invention, wherein the sensor is a sound sensor for detecting a sound in an ear.
- the detection unit can detect the air vibration in the ear corresponding to the respiration, for example, the vibration in the frequency band of 20 Hz to 20 KHz by the sound sensor.
- a thirteenth invention is directed to the sleep respiratory condition measuring device according to the ninth invention, wherein the sensor is a composite sensor for detecting a plurality of different biological signals. provide.
- the detection unit can detect a plurality of biological signals such as sounds in the ear and air pressure corresponding to the respiration by the composite sensor. Therefore, a more accurate respiratory condition test can be performed.
- a fourteenth invention is directed to the sleep respiration state measuring apparatus according to the ninth invention, wherein the sensor is an acceleration sensor for detecting body movement, and the biological signal measurement unit is configured to detect the caro speed.
- the sleep respiratory condition measuring device that corrects a respiratory condition based on a detection value detected by a sensor.
- the acceleration sensor can detect the body motion of the subject during sleep, and can correct the respiratory condition based on the detected body motion. Inspection can be performed.
- a fifteenth invention is the sleep respiratory condition measuring device according to the first invention, further comprising: a transmitter for transmitting a wave signal into an airway through at least one of a mouth and a nostril;
- the unit includes a receiver that receives the wave signal reflected in the airway, and the respiratory information analyzing unit measures a respiratory state based on the wave signal received by the receiver.
- the present invention provides a sleep respiratory condition measuring device comprising:
- a sixteenth invention is directed to the sleep respiratory condition measuring device according to the fifteenth invention, wherein the measuring means analyzes the respiratory condition based on the measurement result, and the analysis result by the analyzing unit. And a detector for detecting an obstruction site in the airway based on the respiratory condition.
- a test signal such as a radio wave or a sound wave transmitted from the mouth or the nostril into the airway by the transmitter repeatedly reflects on a tube wall in the airway. Return and proceed toward the lungs. The test signal that reaches the lungs is reflected by the lungs, returns to the mouth or nostrils again, is received by the receiver, and the measuring means measures, for example, the reflection time.
- the detection unit can detect the obstruction site in the airway by calculating the distance between the mouth or nostril and the obstruction site based on the reflection time, for example, based on the analysis result by the analysis unit.
- the obstruction position can be easily detected without the need for time and labor and the breathing state can be reduced. Inspection can be made according to the condition. As a result, the subsequent treatment and the like can be smoothly performed.
- a seventeenth invention is directed to the sleep respiratory condition measuring device according to the fifteenth invention, wherein the transmitter and the receiver are constituted by the same device. I will provide a.
- the transmitter and the receiver can be constituted by the same device, the number of parts can be reduced, the cost can be reduced, and further downsizing can be achieved. Can be.
- An eighteenth invention is directed to the sleep respiration state measuring apparatus according to the fifteenth invention, wherein the transmitter and the receiver are mounted near at least one of a mouth and a nostril during sleep.
- a respiratory condition measuring device is provided.
- the transmitter and the receiver are mounted near the mouth or the nostril, so that the test signal can be more reliably transmitted into the airway and from the airway. Can be received.
- a nineteenth invention is directed to the sleep respiratory condition measuring device according to the fifteenth invention, which is arranged between the transmitter and the receiver and the mouth or nostril to transmit the test signal.
- a test signal transmission guide capable of transmitting the test signal through the test signal transmission guide.
- a sleep respiratory condition measurement device for transmitting or receiving is provided.
- the test signal can be reliably transmitted to the airway via the test signal transmission guide, and the test signal can be received from the airway.
- the test signal transmission guide since the test signal transmission guide is used, there is no need to mount the transmitter and receiver near the mouth or nostrils. Therefore, the sense of restraint can be reduced.
- a twentieth invention is the sleep breathing state measuring device according to the fifteenth invention, wherein the wave signal is a radio signal, and the transmitter is a radio transmitter that transmits the radio signal.
- the present invention provides a sleep respiratory condition measuring device, wherein the receiver is a radio wave receiver that receives the radio wave signal.
- occlusion position in an airway and the inspection of a respiratory condition can be performed using a radio wave.
- a twenty-first invention is the sleep respiration state measuring apparatus according to the fifteenth invention, wherein the wave signal is a sound wave signal, and the transmitter emits the sound wave signal transmitting the sound wave signal.
- a sleep respiratory condition measuring device wherein the device is a transceiver and the receiver is a sound wave receiver that receives the sound wave signal.
- detection of the obstruction position in an airway and examination of a respiratory condition can be performed using a sound wave.
- a twenty-second invention provides the sleep respiratory condition measuring device according to the fifteenth invention, wherein the wave signal is a pulse signal.
- detection of the obstruction position in an airway and examination of a respiratory condition can be performed using a pulse-like signal.
- a twenty-third invention is directed to the sleep respiratory condition measuring device according to the first invention, wherein a transmitting device for transmitting a signal output from the detection unit, and a signal transmitted from the transmitting device.
- a receiving apparatus for receiving, wireless communication means for wireless communication provided in the transmitting apparatus and the receiving apparatus, and communication switching means for interrupting wireless communication performed between the transmitting apparatus and the receiving apparatus.
- a sleep respiratory condition measuring device provided.
- this sleep respiratory state measuring device a device attached to the subject side and a subject It is possible to transmit and receive data to and from a distant receiving device using wireless communication. Further, since the wireless communication is interrupted by the communication switching means, the time for performing the wireless communication can be reduced.
- a twenty-fourth aspect of the present invention is the sleep respiratory condition measuring device according to the twenty-third aspect, wherein the normal or abnormal respiration of the subject is determined based on a signal detected by the detection device. It has abnormality determination means.
- the abnormality determining means determines the respiratory condition of the subject.
- the determination result of the abnormality determining means is used, for example, for switching between wireless communication interruptions.
- This abnormality determination means may be provided in the communication switching means, or may be provided separately from the communication switching means.
- a twenty-fifth aspect of the present invention is the sleep respiratory condition measuring device according to the twenty-fourth aspect, wherein a result of determining whether the subject is normal or abnormal in breathing or a signal representing the subject's respiratory condition is provided. There is provided display means for displaying.
- the respiratory condition of the subject can be visually confirmed by the display means.
- This display means may be provided integrally with the receiving device or may be provided separately.
- a twenty-sixth aspect of the present invention is the sleep respiratory state measuring device according to the twenty-fourth aspect, further comprising an apnea time measuring unit for measuring a duration of the apnea state.
- this sleep respiratory condition measuring device it is possible to use the time (apnea time) during which the non-respiratory condition continues as the determination algorithm for the abnormality determination. If the apnea time exceeds the preset time, it is determined that the breathing is abnormal, and if it is less than that, it is determined that the breathing is normal.
- the apnea time measurement unit may be provided in the abnormality determination unit, or may be provided separately from the abnormality determination unit.
- a twenty-seventh invention is directed to the sleep respiratory condition measuring device according to the twenty-sixth invention, wherein the abnormality determining means is configured to determine that the subject's respiration is in an apnea state for longer than a predetermined time. And transmitting a signal representing the respiratory condition of the subject only when According to this sleep respiratory condition measuring device, the wireless communication is performed only when it is determined that the patient is in the apnea condition, so that the communication time as a whole can be reduced.
- a twenty-eighth invention is the sleep respiration state measuring device according to the twenty-fourth invention, wherein the abnormality determination means has a respiration cycle measurement unit that measures a respiration cycle.
- the respiratory cycle is used as a determination algorithm for determining an abnormality. If there is almost no disorder in the respiratory cycle, it is judged as normal respiration, and if the respiratory cycle is disordered, it is judged as abnormal respiration.
- a twenty-ninth invention is the sleep respiratory condition measuring device according to the twenty-third invention, wherein the transmitting device changes the respiratory condition of the subject only once for each respiration of the subject. Send the signal that represents.
- this sleep respiratory condition measuring device a signal is transmitted only once for each breath, so that a signal is transmitted during wireless communication compared to a case where a signal is continuously transmitted during one breath. You can shorten the time.
- the transmission device has an arm mounting means for mounting on the arm of the subject.
- the range from the detecting device to the transmitting device can be attached to the subject. Further, the receiving device can be provided at a place remote from the subject.
- a thirty-first invention is directed to the sleep respiratory condition measuring device according to the twenty-third invention, wherein the detection device and the transmission device are provided on a body.
- the range from the detecting device to the transmitting device can be attached to the subject. Furthermore, the cable for connecting the detecting device to the transmitting device is not required.
- the sleep respiratory condition measuring device is provided with an attaching / detaching means for detachably attaching the detecting device and the transmitting device.
- the transmitting device can be attached to and detached from the detecting device.
- the cable is detachably configured.
- a fitting means or the like is provided.
- a thirty-third invention is directed to the sleep respiratory condition measuring device according to the twenty-third invention!
- the receiving device has data transmitting means for transmitting the obtained data to another device.
- data can be analyzed, displayed, and stored in another device.
- a thirty-fourth invention is directed to the sleep respiratory condition measuring device according to the first invention, wherein the transmitting device for transmitting the signal output from the detection unit and the signal transmitted from the transmitting device are transmitted.
- data can be transmitted and received between the device attached to the subject and the receiving device located far away from the subject using wireless communication.
- a thirty-fifth invention is the sleep respiration state measuring device according to the thirty-fourth invention, wherein the feedback control means measures a strength of a reception signal provided in the receiving apparatus. And a transmission output adjusting means for adjusting the output of the transmission signal based on the signal of the intensity of the reception signal transmitted by wireless communication from the reception intensity measuring means.
- the sleep respiratory state measuring device measures the received signal strength on the receiving device side, creates a control signal for the output of the transmitting device based on the received signal strength, transmits this control signal to the subject side by wireless communication, Controls the output of the transmitting device.
- a thirty-sixth invention is the sleep respiratory condition measuring device according to the first invention, further comprising an analyzer for analyzing a signal obtained by the detector, wherein the detector and the analyzer are configured to analyze the signal obtained by the detector.
- An information exchange means for exchanging information via a recording medium is provided.
- the sleep respiratory condition measuring device data is transferred between the device attached to the subject and the analysis means located at a distance from the subject using a recording medium. This eliminates the need for wired connection and wireless communication.
- a thirty-seventh invention is directed to the sleep respiratory condition measuring device according to the thirty-sixth invention, wherein: a first mounting means for mounting the recording medium on the detection unit; Data writing means for writing data to the recording medium is provided, and the analyzing means is provided with second mounting means for mounting the recording medium, and data reading means for reading data from the recording medium.
- the information exchange means is composed of a first attachment means, a data writing means, a second attachment means, and a data reading means.
- a thirty-eighth invention is directed to the sleep respiratory condition measuring device according to the thirty-sixth invention, wherein the analyzing means is a general-purpose computer.
- This sleep respiratory state measuring device has a configuration in which a predetermined analysis algorithm is installed in a general-purpose computer as an analysis means. The invention's effect
- the respiratory sensor detects a change in air pressure due to inflow or outflow of respiratory air from a nostril or a mouth. It is possible to measure the respiratory state of the subject.
- the air pressure change not only the air pressure change but also the air pressure intensity is detected, so that it is possible to more accurately measure the respiratory state of the subject.
- the fourth aspect it is possible to reliably detect the change in air pressure or the air pressure intensity by the pressure sensor.
- the respiratory cycle is analyzed by the first respiratory information analyzing means, and the respiratory flow rate is analyzed by the second respiratory information analyzing means, so that the respiratory state of the subject can be measured in detail. It becomes.
- the respiratory information correction unit removes noise that is caused by body movement due to the subject turning over, etc., so that the subject's respiratory condition can be measured with higher accuracy.
- the body motion sensor is provided integrally with the respiration sensor, it is possible to detect accurate body motion information matching the motion of the respiration sensor. Become.
- the acceleration sensor can reliably detect body motion information.
- the respiratory condition can be easily inspected only by attaching the detection unit to the ear during sleep. At this time, since the respiratory condition can be examined by attaching the detection unit in the ear, the sense of restraint can be reduced, and the possibility of being taken off by turning over, etc. is reduced. In addition, it is possible to reliably detect the respiratory state in the surrounding environment, for example, in a state where it is hardly affected by the ambient temperature and body movement.
- a test signal is transmitted into the airway, and a test signal reflected in the airway is received, so that time and time can be reduced.
- the obstruction position can be easily detected without any trouble, and the respiratory condition can be checked together. Therefore, subsequent treatment and the like can be smoothly performed.
- a device attached to the subject and a receiving device located at a position distant from the subject are connected using wireless communication, and a wired cable is connected between the devices. It becomes unnecessary, and the feeling of restraint of the subject can be reduced. Furthermore, since wireless communication can be interrupted by the communication switching means to reduce the communication time, the battery life of the transmission device can be extended.
- the abnormality determining means can determine the respiratory state of the subject.
- the communication time can be reduced, and the life of the nottery can be extended.
- the respiratory condition of the subject can be confirmed, so that appropriate measures can be taken promptly.
- the twenty-sixth aspect it is possible to determine a breathing abnormality by measuring the apnea time.
- wireless communication is performed only when it is determined to be in an apnea state, so that the overall communication time can be reduced. Therefore, the communication time can be reduced, and the life of the knotter can be extended.
- the communication switching means examines the respiratory cycle to perform respiration. An abnormality can be determined.
- the time required for one communication can be reduced, so that the overall communication time can be reduced, and the battery life can be extended.
- the transmission device can be securely mounted on the wrist.
- the power of the subject can be separated from the receiving device, the sense of restraint of the subject can be reduced.
- the thirty-first aspect it is possible to attach the detection device power transmission device to the subject. Since no cable is required, the subject's feeling of restraint can be reduced.
- the detection device is configured to be detachable, replacement and cleaning of the detection device is facilitated, so that the detection device can be always kept in a clean state.
- the data can be analyzed, displayed, and stored on another device different from the receiving device, so that the receiving device can be reduced in size and inexpensive.
- the device attached to the subject is provided with a device for storing data at a remote location, and is configured to perform wireless communication between the two, so that the subject's sense of restraint is reduced. be able to. Further, by performing feedback control on the strength of the signal transmitted from the transmission device, it is possible to suppress the output of the transmission device to the minimum necessary, so that the battery life of the transmission device can be extended.
- the receiving device measures the received signal strength and transmits the control signal to the transmitting device by radio, there is no need to connect a wired connection between the two, and the subject is restrained. Feeling can be reduced.
- the signal detected by the detection device is recorded on the recording medium. Therefore, compared to a case where the detection device and the analysis means are connected by wire, the sense of restraint of the subject is reduced. Can be reduced. Further, the battery life of the detection device can be extended as compared with the case where wireless communication is performed.
- the information exchange means since the information exchange means is composed of the first mounting means, the data writing means, the second mounting means, and the data reading means, the information exchange means has a simple configuration. The feeling of restraint can be reduced, and the life of the knotter can be extended.
- the analysis means has installed a predetermined analysis algorithm. Since a general-purpose computer is sufficient, the device configuration can be simplified, and the price can be reduced.
- FIG. 1 is a schematic configuration diagram showing a first embodiment of a sleep respiration state measuring apparatus according to the present invention.
- FIG. 2 is an explanatory diagram showing an arithmetic unit of the sleep respiratory state measuring device in the embodiment.
- FIG. 3 is a block diagram showing the principle of the sleep respiratory condition measuring device in the embodiment.
- FIG. 4 is an explanatory view showing a state in which the sleep respiratory state measuring device in the embodiment is mounted.
- FIG. 5A to FIG. 5C are graphs showing the respiratory state of the subject using the sleep respiratory state measuring device in the same example, FIG. 5A is respiratory information by a pressure sensor, and FIG. 5B is acceleration. FIG. 5C is an explanatory diagram showing the respiratory information after subtracting the respiratory information and the physical motion information from the sensor.
- FIG. 6 is a schematic configuration diagram showing a second embodiment of the sleep respiratory condition measuring device according to the present invention.
- FIG. 7 is an explanatory view showing a state in which the sleep respiratory state measuring device in the embodiment is mounted.
- FIG. 8 is a block diagram showing the principle of the sleep respiratory condition measuring device in the embodiment.
- FIG. 9 is a conceptual diagram showing one embodiment of a respiratory condition measuring device according to the present invention.
- FIG. 10 is a configuration diagram showing an example of a vibration sensor unit of the respiratory condition measuring device shown in FIG. 9.
- FIG. 11 is a configuration diagram showing a signal detection circuit of the respiratory condition measuring device shown in FIG. 9.
- FIG. 12 is a waveform diagram showing an example of an electric signal sent from the vibration sensor unit to the signal detection circuit.
- FIG. 13 is a waveform diagram showing an example of an electric signal after passing through a low-pass filter.
- FIG. 14 is an overall view for explaining an embodiment of a respiratory condition measuring apparatus according to the present invention.
- FIG. 15 is a sectional view of a sensor section of the respiratory condition measuring device shown in FIG.
- FIG. 16 is a waveform diagram when a radio signal is transmitted.
- FIG. 17 is a waveform diagram when a radio signal is received from the airway when the subject is normal.
- FIG. 18 is a diagram showing a state in which a radio signal is transmitted when there is a stenosis between a nostril and a mouth in an airway.
- FIG. 19 is a waveform diagram when a radio signal is received in the state of FIG. 18.
- FIG. 20 is a diagram showing a state where a radio signal is transmitted when there is a stenosis between the mouth and the lung in the airway.
- FIG. 21 is a waveform diagram when a radio signal is received in the state of FIG. 20.
- FIG. 22 is a cross-sectional view showing another example of the sensor unit when transmitting a sound wave signal.
- FIG. 23 is a diagram showing a state in which an air pipe is arranged between the sensor unit and the airway to transmit a radio signal into the airway.
- FIG. 24 is a schematic configuration diagram of a sleep respiratory condition measuring device according to an embodiment of the present invention.
- FIG. 25 is a block diagram of a device on the subject side of the sleep respiratory condition measuring device.
- FIG. 26 is a block diagram of a receiving device of the sleep respiratory condition measuring device.
- FIG. 27 is a diagram showing a detection signal.
- FIG. 28 is a diagram showing a result of Fourier transform of a detection signal.
- FIG. 29 is a diagram showing an example of a signal that also transmits a transmitting device power.
- FIG. 30 is a diagram showing a configuration in which a detection device is integrated.
- FIG. 31 is a diagram showing attaching / detaching means for detachably attaching a detecting device.
- FIG. 32 is a schematic configuration diagram of a sleep-time respiratory condition measuring device according to an embodiment of the present invention.
- FIG. 33 is a block diagram of a sleep-time respiratory condition measuring device.
- FIG. 34 is a schematic configuration diagram of a sleep-time respiratory condition measuring apparatus according to an embodiment of the present invention.
- FIG. 35 is a diagram showing an example of a configuration for analyzing and displaying data.
- FIG. 36 is a schematic configuration diagram of a sleep-time respiratory condition measuring apparatus according to an embodiment of the present invention.
- FIG. 37 is a diagram showing an example of a configuration for analyzing and displaying data.
- Vibration sensor Vibration sensor
- a sleep respiratory condition measuring device (hereinafter, simply referred to as a “measuring device”) of the present invention will be described with reference to the drawings.
- reference numeral 101 denotes a sleep respiratory condition measuring apparatus according to the present embodiment
- reference numeral 102 denotes a nose of a subject
- reference numeral 120 denotes an ear.
- the illustrated sleep respiration state measuring apparatus 101 is for nasal respiration measurement, and a nasal respiration sensor (respiration sensor) 103 and a data processing unit 104 are connected via a wire 107.
- the nasal respiration sensor 103 is attachable to the subject's nostrils 102a, and has a substantially rectangular shape extending over the left and right nostrils 102a.
- the data processing unit 104 is designed to be fitted to the subject's ear 120 while being locked.
- the nasal respiration sensor 103 includes a sheet-like substrate member 103a, and rectangular openings 103b aligned with the nostrils of the subject are formed near both ends in the longitudinal direction. These openings 103b are for allowing the subject to wear the nasal respiration sensor 103 and to allow the breathing air from the nasal breathing to flow in and out through the respective openings 103b.
- the opening 103b is provided with a pressure sensor 105 extending in a strip shape from the center of one side thereof.
- the pressure sensor 105 is a piezoelectric element 105a whose resistance value changes according to a displacement operation, and outputs a voltage corresponding to the displacement of the piezoelectric element 105a.
- an acceleration sensor 106 as a body movement sensor is provided at the center of the substrate member 103a and between the openings 103b.
- the acceleration sensor 106 is, for example, of a capacitance type, and includes a fixed fixed electrode (not shown) and a movable electrode that moves according to the movement of the nasal respiration sensor 103. Then, a signal corresponding to the width of the fixed electrode and the movable electrode, that is, a signal corresponding to the magnitude of the capacitance therebetween is output.
- a clip 108 for attaching to the nostril 102a of the subject is attached to the back surface of the nasal respiration sensor 103.
- the inward force of the nostrils 102a also has a directional air flow from the outside or from the outside toward the inside.
- the pressure sensor 105 is deformed according to the pressure direction and the pressure intensity of the air flow. That is, the piezoelectric element 105a is distorted inward or outward of the nostril 102a according to the airflow.
- the pressure sensor 105 generates a voltage corresponding to the direction and amount of deformation of the piezoelectric element 105a. This voltage is output via the wire 107.
- the change in the pressure direction of the air flow refers to a change in the air pressure
- the pressure intensity of the air flow refers to the air pressure intensity!
- the movable electrode moves in accordance with the movement. Therefore, in the acceleration sensor 106, the capacitance between the A signal corresponding to the magnitude is generated. This signal is output via the wire 107 as body motion information.
- the data processing unit 104 has a processing unit main body 104a including a calculation unit (respiration information correction unit) 109 for performing various processes and calculations. Further, the data processing section 104 includes a mounting section 4b fixed to the outer surface of the processing section main body 104a. The mounting section 4b allows the data processing section 104 to be attached to the subject's ear.
- the calculation unit 109 includes a respiration information analysis unit (respiration information analysis unit) 115 and a respiration information correction unit 116, which will be described later.
- the respiratory information analyzing means 115 includes a respiratory cycle analyzing means (first respiratory information analyzing means) 117 and a respiratory flow analyzing means (second respiratory information analyzing means) 118 for analyzing a respiratory cycle and a respiratory flow, respectively. .
- the processing unit main body 104a includes a power of an arithmetic unit 109, an expiration signal processing unit 111, a body motion signal processing unit 112, an AZD conversion unit 110, and a memory card connector 113.
- the respiratory signal processing unit 111 and the body motion signal processing unit 112 respectively perform wave forming processing on the output signals from the pressure sensor 105 and the acceleration sensor 106.
- AZD conversion section 110 digitally converts signals from respiration signal processing section 111 and body motion signal processing section 112.
- a memory card connector 113 connects the memory card 121 and the arithmetic unit 109. Note that the memory card 121 stores an analysis program.
- output signals from pressure sensor 105 and acceleration sensor 106 are subjected to waveform shaping processing by respiration signal processing section 111 and body motion signal processing section 112, respectively. Subsequently, these signals are input to the calculation unit 109 via the AZD conversion unit 110. Then, a predetermined calculation is performed by the calculation unit 109, and the calculation result is stored in a memory (not shown) one by one.
- the subject wears the sleep respiratory state measuring device 101 before going to bed.
- the nasal respiration sensor 3 is attached to the nostrils 102a, and the data processing unit 104 is attached to the ears 120.
- the patient lays down on a bed and falls asleep as usual.
- the sleep respiratory condition measuring device 101 is returned to the hospital, and the doctor executes the respiratory information analyzing process described below for the sleep respiratory condition measuring device 101 for each memory card 121 for each subject. Let it.
- the respiratory state during sleep as shown in FIG. 5C is analyzed.
- the breath information of the subject is stored in the memory and the breath information is analyzed as follows.
- the piezoelectric element 105a is bent inward of the nostril 102a according to the intensity of the air pressure due to the inhalation.
- the piezoelectric element 105a is bent out of the nostrils 102a according to the intensity of air pressure generated by the exhalation. Therefore, in a state where breathing is performed as usual, as shown in FIG. 5C, the strain force of the piezoelectric elements 105a directed inward and outward is alternately repeated with a constant cycle.
- the pressure sensor 105 outputs a predetermined voltage value as respiration information in accordance with the change in air pressure due to breathing air and the degree of air pressure change, that is, the direction and amount of deformation of the piezoelectric element 105a.
- This output is subjected to waveform shaping processing by the respiratory signal processing unit 111 and further converted to a digital signal by the AZD conversion unit 110, and then input to the arithmetic unit 109. After a predetermined calculation is performed by the calculation unit 109, the calculation result is stored in the memory one by one.
- noise may be generated in the output from the pressure sensor 5, as shown in FIG. 5A.
- the noise is removed as follows.
- the movable electrode of the acceleration sensor 106 moves accordingly, and the width of the movable electrode and the fixed electrode changes.
- the acceleration sensor 106 outputs signal force / body motion information corresponding to the magnitude of the capacitance.
- This output value is subjected to a waveform shaping process by a body motion signal processing unit 112, then converted into a digital signal by an AZD conversion unit 110, and this digital signal is input to a calculation unit 109.
- an operation unit By 109 the body movement information is subtracted to correct the breathing information, and the corrected proper breathing information is stored in the memory one by one.
- the respiration information is analyzed as follows.
- the memory card 121 is connected to the memory card connector 113, and the analysis program stored in the memory card 121 is executed.
- the respiratory cycle analyzing means 117 calculates the respiratory cycle based on the respiratory information stored in the memory. That is, according to the change in the deformation direction of the piezoelectric element 105a, as shown in FIG.5C, by taking a plus value at the time of inhalation and a minus value at the time of expiration, these alternately repeated plus and minus predetermined times are measured. The respiratory cycle is calculated.
- the respiratory flow analyzing means 118 calculates the respiratory flow. That is, the total flow rate during intake is calculated by determining the area plotted by the curve plotting the change in the amount of deformation of the piezoelectric element 105a during intake shown in FIG. 5C and the t-axis. Similarly, the total flow rate during expiration is calculated. Thereby, the respiratory cycle and respiratory flow during sleep of the subject are calculated, and the respiratory state of the subject is measured in detail.
- a change in the deformation direction of pressure sensor 105 causes a change in air pressure due to inflow and outflow of respiratory air from nares 102a. Therefore, the subject's respiratory state can be measured with high accuracy without being affected by temperature changes such as room temperature during measurement.
- the breathing information from the pressure sensor 5 is corrected based on the body movement information from the acceleration sensor 106 due to the body movement of the subject, the measurement can be performed with higher accuracy.
- the acceleration sensor 106 is provided integrally with the pressure sensor 105, it is possible to detect accurate body movement information that matches the movement of the pressure sensor 105.
- the basic configuration of this embodiment is the same as that of the first embodiment.
- a mouth breathing sensor (sensor) 122 extending below the nasal breathing sensor 103 is detachably provided via a connector 125.
- the mouth pressure sensor (sensor) 123 disposed at a position facing the mouth 124 with the nose breathing sensor 103 attached to a predetermined part of the subject is attached to the mouth breathing sensor 122.
- the mouth pressure sensor 123 includes a mouth piezoelectric element 123a whose resistance value changes according to the displacement operation, and the deformation direction and deformation amount of the mouth piezoelectric element 123a. Is output as mouth breathing information.
- the subject wears the nasal respiration sensor 103 and the mouth respiration sensor 122 as shown in FIG. Then, the respiratory gas at the mouth 124 that is not only the respiratory gas from the nostrils 102a is also detected by the mouth respiratory sensor 122. At this time, the pressure direction and pressure intensity of the airflow from the mouth 124 are also output as mouth breath information from the mouth breath sensor 122 as mouth breath information by the same operation as the nasal breath sensor 103.
- This output signal is input to the respiratory signal processing unit 111 via the connector 125 as shown in the block diagram of FIG. Further, the data is input to the arithmetic unit 109 via the AZD conversion unit 110, and a predetermined arithmetic operation is performed by the arithmetic unit 109.
- the mouth breathing information from the mouth breathing sensor 122 can be added to the breathing information from the nasal breathing sensor 103, the subject can only use the mouth 124. Even when breathing, the breathing state can be measured more accurately.
- the force at which the nasal respiration sensor 103 is attached to the nostril 102a of the subject is not limited to this.
- the nasal respiration sensor 103 may be attached to the mouth of the subject.
- the acceleration sensor 106 is provided at the center of the nasal respiration sensor 103.
- the present invention is not limited to this, and the installation location may be appropriately changed.
- a force in which the nose breathing sensor 103 and the acceleration sensor 106 are integrally provided may be separately provided.
- the acceleration sensor 106 may be attached to, for example, the subject's head or the like.
- the respiration state can be measured with higher accuracy if both are provided integrally.
- the nose breathing sensor 103 is provided with the acceleration sensor 106. Force is not required even without the acceleration sensor 106. However, it goes without saying that the provision of the acceleration sensor 106 can measure the breathing state with higher accuracy.
- the force of providing the data processing unit 104 in the subject's ear 120 is not limited to this, and the mounting location, installation location, and the like may be appropriately changed.
- FIGS. 1-10 One embodiment of a respiratory condition measuring device according to a third embodiment of the present invention will be described with reference to FIGS.
- the respiratory condition measuring device 1 of the present embodiment includes an insertion section (mounting section) 211, a detection section 203, and a main body section 205.
- the respiratory condition measuring device 201 is mounted in the ear of the subject 200A via the insertion section 211.
- the detection unit 203 includes a vibration sensor unit (vibration sensor) 202 that detects a biological signal corresponding to respiration.
- the main body 205 has a signal analysis circuit (measurement means) 204 for measuring a respiratory state based on the biological signal detected by the detection section 203.
- the air vibration corresponding to the respiration in the ear of the subject A will be described as the biological signal.
- the vibration sensor unit 203 is formed in a box shape by a housing 210, and an insertion portion 211 that can be inserted into an ear canal is provided on one end surface of the housing 210. That is, the vibration sensor unit 203 can be worn in the ear of the subject 200A by inserting the insertion unit 211 into the ear canal.
- the insertion portion 211 is formed of an elastic material such as rubber so as to seal the ear canal when inserted into the ear canal, and has an opening 21 la at a distal end.
- the housing 210 is formed of a material that does not transmit sound to the inside of the housing 210 by blocking external sound.
- a receiving means 212 for receiving air vibration in the ear is provided inside the housing 210.
- the receiving means 212 is configured by attaching a crystal 214 to a thin film 213 provided inside the housing 210.
- the crystal 214 has a function of transmitting an electric signal (waveform) according to the vibration state of the thin film 213 to the main body 205 when the thin film 213 vibrates due to air vibration in the ear.
- the vibration sensor unit 203 can detect the air vibration in the ear.
- the receiving means 212 is not limited to the above configuration.
- an intermediate wall 215 in which a plurality of minute openings 215a are formed is provided on the side of the insertion portion 211 inside the housing 210, and an inclined wall portion that forms a V-shaped space with the intermediate wall 215 is provided.
- 216 are provided.
- the slant wall portion 216 has a plurality of openings 215a similar to the intermediate wall 215.
- a diaphragm 217 formed in a V shape with a metal material such as aluminum is arranged.
- an acoustic resistor 218 is arranged inside the intermediate wall 215 and the inclined wall portion 216 so as to cover the opening 215a.
- a ceramic element 220 connected to the diaphragm 217 via the rod 219 is attached inside the housing 210.
- the ceramic element 220 is, for example, a piezoelectric element such as zircon-lead titanate ferrite (HPZT) or the like, and has a structure called a bimorph, which generates an electric charge in response to bending stress.
- HPZT zircon-lead titanate ferrite
- the receiving means 212 more accurately captures the vibration change of air having low impedance, and the diaphragm 217 vibrates, and the ceramic element 220 sends an electric signal corresponding to the vibration to the main body 205. Te ru.
- the main body 205 is formed in a box shape by a housing 225, and can be attached to, for example, an arm of the subject 200A by a belt or the like. Also, it may be configured to be worn on the wrist like a wristwatch.
- the main body 205 is electrically connected to the vibration sensor 202.
- the main body 205 includes a signal detection circuit 226, a signal analysis circuit 204, and a memory 227 in a housing 225.
- the signal analyzing circuit 226 detects the electric signal sent from the receiving means 212.
- the signal analysis circuit 204 receives the electric power transmitted from the signal detection circuit 226.
- the respiratory condition is measured based on the air signal.
- the memory 227 records the respiratory state detected by the signal analysis circuit 204. Further, on the outer surface of the housing 225, a display 228 for displaying various information recorded in the memory 227 is provided.
- the signal detection circuit 226 includes an amplifier 226a and a low-pass filter 226b.
- the amplification unit 226a amplifies the electronic signal sent from the reception unit 212.
- the low-pass filter 226b removes, for example, an electric signal due to the heart rate.
- the low-pass filter 226b converts unnecessary electric signals generated by the heart rate of the subject 200A included in the electric signal from the electric signal amplified by the amplification unit 226a. Is removed. That is, the signal detection circuit 226 and the vibration sensor unit 203 constitute the detection unit 203.
- the signal analysis circuit 204 analyzes the signal sent from the signal detection circuit 226 to determine whether the respiratory condition is normal or abnormal. For example, if the signal level is equal to or higher than a preset threshold value or the like, and the signal level is equal to or higher than the threshold value, it is determined that the respiratory state is abnormal, for example, an apnea state. When the signal analysis circuit 204 determines that the respiratory condition is not normal, the signal analyzing circuit 204 sends respiratory information to the memory 227 to that effect.
- the memory 227 has a built-in timer function, and can record information on the respiratory condition sent from the signal analysis circuit 204 together with time.
- the display 228 is a monitor that can arbitrarily display each information recorded in the memory 227 by a liquid crystal monitor, an LED, or the like by a switch (not shown).
- the indicator 228 is not limited to the integral force provided on the outer surface of the housing 225, and may be provided separately.
- the vibration sensor section 202 and the main body section 205 are mounted at predetermined positions. After mounting, the subject 200A goes to sleep with the power switch (not shown) of the main body 205 turned on.
- the vibration sensor unit 202 mounted in the ear detects air vibration in the ear corresponding to the respiration of the subject 200A, for example, air vibration in a frequency band from OKHz to 20 KHz. That is, every time the subject 200A exhales, changes in sound and pressure are transmitted through the bones, the eustachian tube, etc., and the air in the ear canal is released. Vibrate. This air vibration enters the casing 210 through the opening 211a of the insertion section 211, and is received by the receiving means 212.
- the receiving means 212 when detecting the air vibration, sends an electric signal corresponding to the vibration state, for example, an electric signal having a waveform as shown in FIG. 12 to the signal detection circuit 226.
- the electric signal sent to the signal detection circuit 226 includes, in addition to the electric signal generated by breathing, an electric signal generated by a heartbeat or the like.
- the signal detection circuit 226 amplifies the transmitted electric signal by the amplifier 226a as shown in FIG. Then, the low-pass filter 226b cuts off the above-mentioned factors other than the respiration, that is, the electric signal generated by the heartbeat or the like. Thus, the signal detection circuit 226 can obtain an electric signal corresponding to respiration as shown in FIG. Then, the signal detection circuit 226 sends the detected electric signal to the signal analysis circuit 204.
- the signal analysis circuit 204 compares the signal level of the transmitted electric signal with a preset threshold value or the like. As a result of the comparison, if the value is equal to or smaller than the threshold, it is determined that the respiratory condition is normal. If the difference is equal to or larger than the threshold value, it is determined that the respiratory condition is abnormal, for example, the subject A is in an apnea condition, and the memory 227 is notified of the fact.
- the memory 227 records the transmitted information on the respiratory condition together with the time by the timer function as needed.
- the respiratory condition measuring apparatus 201 repeats the above until the main unit 205 is turned off, and examines the respiratory condition of the subject 200A during sleep.
- the subject 200A After waking up, the subject 200A operates the switch of the display 228 to operate the information recorded in the memory 227, for example, when there is a change in respiratory state (apnea state), It is possible to easily confirm the number of respiratory abnormalities that occurred in the evening.
- apnea state a change in respiratory state
- a change in air vibration corresponding to respiration in the ear can be detected by the vibration sensor unit 202, and the signal analysis circuit 204 is based on a biological signal corresponding to the air vibration. Measures the respiratory condition of the subject 200A.
- the breathing state can be easily inspected only by attaching the vibration sensor unit 202 to the ear.
- the respiratory condition can be examined by attaching the vibration sensor unit 202 in the ear, the sense of restraint of the subject 200A can be reduced, and the possibility of the subject 200A coming off due to turning over or the like is reduced.
- the signal detection circuit 226 removes unnecessary signals caused by heartbeats or the like by the low-pass filter 226b, so that accurate respiration information can be obtained.
- the air vibration in the ear (for example, the band from OKHz to 2 OKHz) is used as the biological signal, but the biological signal is not limited to the air vibration.
- air pressure in the ear corresponding to breathing may be used as a biological signal.
- an air pressure sensor for detecting the air pressure may be attached to the ear instead of the vibration sensor unit.
- the sound in the ear corresponding to breathing may be used as a biological signal.
- a sound sensor that detects sound instead of the vibration sensor may be mounted in the ear.
- the sound sensor is suitable for detecting vibration in the frequency range of 20 Hz to 20 KHz.
- the above-mentioned information that is, air pressure or air vibration corresponding to respiration may be combined as a biological signal.
- a composite sensor that can detect a plurality of these different pieces of information may be used.
- an acceleration sensor for detecting a body motion may be attached to the vibration sensor unit.
- the acceleration sensor it is preferable that the acceleration sensor be directly mounted inside the housing so as not to affect the receiving means. Then, the body motion information of the subject 200A during sleep detected by the acceleration sensor may be sent to the signal detection circuit, and the signal after the low-pass filter may be further corrected to eliminate the influence of the body motion. With this configuration, it is possible to more accurately inspect the respiratory condition of the subject 200A.
- the vibration sensor unit is attached to both ears of the subject 200A, rather than to only the inside of one ear.
- the vibration sensor unit is attached to both ears of the subject 200A, rather than to only the inside of one ear.
- the respiratory condition measuring device 301 of the present embodiment includes a main body 311 and a sensor 310.
- the sensor unit 310 includes a radio wave transmitter (transmitter) 302, a radio wave receiver (receiver) 303, and a radio wave antenna 312.
- the radio wave transmitter 302 transmits a test signal, that is, a radio wave signal into the airway through at least one of the mouth and the nostril of the subject 300A.
- the radio receiver 303 receives a radio signal reflected in the airway or the lung.
- the main body unit 311 includes a signal analysis circuit (wave signal measurement unit) 304, a signal generation circuit 316, and a signal detection circuit 317.
- the signal analysis circuit 304 measures the respiratory state of the subject 300A based on the radio signal received by the radio receiver 303. In this embodiment, a case will be described in which a radio signal is transmitted and received from the nostril into the airway.
- the signal analysis circuit 304 includes an analysis circuit (analysis unit) 305 and a detection circuit (detection unit) 306.
- the analysis circuit 305 analyzes the respiratory condition based on the measurement result of the radio signal.
- the detection circuit 306 detects an obstruction site in the airway based on the analysis result of the analysis circuit 305.
- the respiratory condition measuring device 301 includes the sensor unit 310 that can be worn near the nostril, and the main unit 311 that is electrically connected to the sensor unit 310.
- the sensor section 310 is formed in a box shape having an opening 310a, as shown in FIGS.
- a holding portion such as a clip is provided, and can be attached to the subject 300A with the opening 310a facing the nostril via the holding portion.
- the holding portion may be omitted and, for example, a tape or the like may be attached near the nostril.
- the outer shape may be made like a rugby ball, and fine irregularities may be formed on the outer peripheral surface, and inserted into the nostrils and fixed.
- a radio wave antenna 12 is provided in the sensor section 310.
- the radio wave antenna 12 receives a control signal from the main body 311 and operates the radio wave transmitter 302.
- the radio wave antenna 312 is configured so that the radio wave receiver 303 sends a radio wave signal received from the airway to the main body 311.
- the radio transmitter 302 transmits a pulse-shaped radio signal that is not continuous transmission.
- the main body 311 is formed in a box shape by a housing 315. So Then, for example, a belt or the like can be worn on the arm or the like of the subject 300A. Also, it can be configured to be worn on the wrist like a wristwatch.
- the main body 311 includes a signal generation circuit 316 and a signal detection circuit 317 in a housing 315.
- the signal generation circuit 316 generates a control signal to be sent to the radio wave antenna 312.
- Signal detection circuit 317 detects a radio signal transmitted from radio radio antenna 312.
- the main body 311 includes the signal analysis circuit 304 in the housing 315.
- the signal analysis circuit 304 includes an analysis circuit 305, a detection circuit 306, and a memory 318.
- the memory 318 records the results of detection of the respiratory state and the obstructed part obtained by the circuits 305 and 306.
- a display 319 for displaying each information recorded in the memory 318 is provided.
- the analysis circuit 305 has a function of measuring a reflection time until a radio wave signal transmitted from the radio wave transmitter 302 is reflected in the airway and received by the radio wave receiver 303. Then, based on the difference in the reflection time, the respiratory state and the obstruction state in the airway are analyzed. Furthermore, the analysis circuit 305 has a recording unit 305a that records, as a reference time, a reflection time measured during a predetermined time after the operation is started, that is, a reflection time measured immediately after the subject 300A goes to bed. . The analysis is performed by comparing the reference time with the reflection time measured thereafter. Note that the recording unit 305a may be set in advance so that the reference time can be input. Then, as a result of the analysis, if the measured reflection time is different from the reference time, it is determined that the respiratory condition has changed, and the fact is sent to the detection circuit 306 and recorded in the memory 318.
- the detection circuit 306 has a function of detecting the distance to the closed position in the airway from the reflection time sent from the analysis circuit 305. The detected distance is recorded in the memory 318.
- the display 319 is a monitor that can arbitrarily display each information recorded in the memory 318 by a liquid crystal monitor, an LED, or the like by a switch (not shown).
- the display 319 has a built-in timer function so that the time of each piece of information sent from the analysis circuit 305 and the detection circuit 306 can be recorded.
- the display 319 is The integrated force provided on the outer surface of the housing 315 is not limited to this, and may be provided separately.
- the sensor section 310 and the main body section 311 are mounted at predetermined positions. After the wearing, the subject 300 A goes to sleep with the power switch (not shown) of the main body 311 turned on.
- the radio wave transmitter 302 transmits a radio signal into the airway. That is, the signal generation circuit 316 operates to generate a predetermined control signal. Based on this control signal, a pulse-shaped radio signal is transmitted from the radio transmitter 302 into the nostril, as shown in FIG.
- the airway is not obstructed. Therefore, the radio signal transmitted into the airway reaches the lung while being reflected on the lumen wall in the airway of the subject A shown in FIG.
- the received radio signal is sent to the main unit 311 via the radio radio antenna 312. Then, the signal is sent from the signal detection circuit 317 to the signal analysis circuit 304.
- the radio wave receiver 303 receives, for example, a radio wave signal as shown in FIG. 17 from the airway and sends it to the analysis circuit 305. That is, the radio wave receiver 303 first receives the radio wave signal reflected on the inner wall of the nostril, and then receives the radio wave signal reflected on the inner wall of the throat. In this way, the radio wave signal reflected by the lumen wall near the lung is received over time. And finally, the radio signal reflected by the lungs is received. Note that the analysis circuit 305 determines that the radio signal immediately before the signal level becomes 0 is a radio signal reflected by the lungs. Further, the analysis circuit 305 records the reflection time of the radio signal reflected by the lungs as a reference signal in the recording unit 305a.
- the recording in the recording unit 305a is set so as to be performed only until a predetermined time elapses after the power is turned on. Further, an average value of the reference times recorded a plurality of times during the predetermined time may be obtained. This makes it possible to set a more accurate reference time.
- the analysis circuit 305 compares the reflection time of the radio signal transmitted from the radio receiver 303 with the reference time.
- the analysis of the respiratory state is performed by the above. As a result, for example, if there is no difference in the reflex time, it is analyzed that there is no change in the state of the airway, that is, there is no change in the respiratory state.
- FIG. 18 for example, when the muscles in the airway of the subject 300A are loosened and stenosis occurs between the nostrils and the mouth, the radio wave receiver 303 is turned on in FIG. A radio signal as shown in FIG.
- the radio wave receiver 303 receives a radio wave signal reflected at the stenosis site 300B that is not in the lung, that is, a radio wave signal having a reflection time tl.
- the analysis circuit 305 analyzes that the respiratory condition has changed based on the difference between the reflection time tl and the reference signal, and sends the change to the memory 318 and the detection circuit 306 to that effect.
- the radio wave receiver 303 receives a radio signal as shown in FIG. 21, That is, the radio signal of the reflection time t2 is received.
- the change in the respiratory state is analyzed by the analysis circuit 305, and the distance s2 to the occlusion site 300C is detected by the detection circuit 306. Further, the change in the respiratory state and the distance s2 are recorded in the memory 318 in relation to time.
- the signal analysis circuit 304 receives the radio wave signal transmitted by the radio wave transmitter 302 and reflected in the airway, as well as the reflection time and the base time. When there is a difference from the quasi-time, it is determined that the respiratory state has changed, and the recording in the memory 318 is repeated. At the same time, the distance of the occluded part is also recorded.
- the subject 300A after getting up, operated the switch of the display 319 to change each piece of information recorded in the memory 318, for example, at what time and how many minutes the breathing state changed (apnea state).
- the user can easily check the distance to the nostril obstruction site, the number of respiratory abnormalities, etc. In particular, since the distance from the nostril to the obstruction site can be confirmed, it is possible to immediately receive optimal treatment without receiving treatment such as MRI by a medical institution.
- a radio signal is transmitted into the airway of the subject 300A, and the radio signal reflected in the airway is received, thereby saving time and effort.
- the obstruction position in the airway can be easily detected, and the respiratory condition can be checked together. Therefore, after that, based on the data of the detected occlusion position, it is possible to smoothly perform treatment such as sleep apnea at a medical institution or the like.
- the radio wave transmitter 302 and the radio wave receiver 303 are arranged near the nostrils, it is possible to reliably transmit a radio signal to the airway or to receive the radio signal from the airway. Therefore, the accuracy of the inspection can be improved.
- the radio signal is transmitted from the subject's nostril into the airway, but the loca may also be transmitted into the airway.
- radio waves were used as test signals, they are not limited to radio waves.
- a sound wave signal using a sound wave may be used.
- the radio wave transmitter may be configured as a sound wave transmitter for transmitting a sound wave signal
- the radio wave receiver may be configured as a sound wave receiver for receiving a sound wave signal.
- a sound wave generating thin film is provided in the vicinity of the opening, and a transmitting means such as a transmitting crystal for vibrating the sound wave generating film by applying a voltage to the sound wave generating thin film is provided.
- a transmitting means such as a transmitting crystal for vibrating the sound wave generating film by applying a voltage to the sound wave generating thin film.
- the radio wave transmitter and the radio wave receiver are separately configured, that is, the signal generation circuit and the signal reception circuit are separately configured in the housing of the main body, but are configured on the same device. No problem. By doing so, the number of parts can be reduced, and low cost can be achieved. Further, the size of the main body can be further reduced.
- the sensor unit is arranged near the nostril, and the radio wave antenna force directly transmits a radio signal into the airway.
- the present invention is not limited to this, and any configuration that can transmit a radio signal into the airway may be used. .
- an air pipe inspection signal transmission guide
- the air pipe is formed to have flexibility so that a radio signal can be transmitted inside. By using this air noise, it is not necessary to attach the sensor unit to the subject by attaching it to the subject, and thus the sense of restraint of the subject can be reduced.
- FIG. 24 shows a schematic configuration of a sleep respiration state measuring apparatus according to the fifth embodiment.
- the sleep respiratory condition measurement device 401 includes a detection device (detection unit) 404, a communication switching unit 406, a transmission device 408, and a reception device 409.
- the detection device 404 is attached to the head of the subject lying on the bed 402, and detects breathing of the subject.
- the communication switching means 406 is connected by a cable 405.
- the transmission device 408 is connected by a cable 407.
- the receiving device 409 can wirelessly communicate with the transmitting device 408.
- the detection device 404 has an elongated main body 411, and a stopper 412 for fixing the main body 411 to the subject's nasal bridge near the longitudinal center of the main body 411. Is installed.
- one nose respiration sensor 413 force S 413 is attached to the left and right of the stopper 412 on the main body 411.
- the nasal respiration sensor 413 is attached corresponding to the position where each nostril is formed.For example, a sensor that attaches a piezoelectric element to a beam deformed by nasal respiration, a thermistor, a sensor that detects carbon dioxide, etc. Is used.
- a signal (detection signal) whose intensity changes in accordance with the respiratory volume is output as a detection signal indicating the respiratory state of the subject. Then, this detection signal is output to the communication switching means 406 connected by the cable 405.
- the communication switching means 406 includes a control unit 421 including a CPU (Central Processing Unit), a memory 422 for data recording, and an input / output interface (IF) for inputting and outputting signals to and from the cables 405 and 407. 423. Further, the control unit 421 has abnormality determination means 424, and determines whether breathing is normal or abnormal based on data output from the detection device 404 according to a determination algorithm described later.
- the abnormality determining means 424 has an apnea time measuring unit 425. The apnea time measuring unit 425 measures the time during which the apnea state continues.
- transmitting apparatus 408 has main body 432 and arm mounting means 431.
- the main body 432 is fixed to the wrist of the subject via the arm mounting means 431. However, the main body 432 is detachable by the arm mounting means 431.
- the main body 432 is connected to the communication switching means 406 and the detection device 404 via a cable 407.
- the main body 432 includes a transmitter 433, an antenna 434, and a battery 435.
- the transmitter 433 and the antenna 434 constitute a wireless communication unit.
- the wireless communication unit transmits the detection signal output from the communication switching unit 406 by superimposing the detection signal on a radio wave (transmission wave).
- a radio wave transmission wave
- As the arm-attaching means 431 a belt having a fastener or a hook-and-loop fastener attached thereto, an elastic ring-shaped belt, or the like is used.
- the above-described detection device 404 to transmission device 408 are attached to the subject. Then, the signal transmitted from the transmitting device 408 is transmitted to the receiving device 409 installed at a position away from the subject using wireless communication technology.
- the reception device 409 has an antenna 441 and a receiver 442.
- the antenna 441 and the receiver 442 constitute wireless communication means.
- the wireless communication unit receives the radio wave transmitted from the transmitting device 8 and demodulates the detection signal. Further, it includes a control unit 443 such as a CPU which also has a power, a recording device 444 for recording data such as a detection signal, and a display means 445 such as a liquid crystal display.
- the display unit 445 displays a graph of a detection signal, such as a graph indicating a respiratory state, a result of determining whether breathing is normal or abnormal, and the like. The determination of the breathing state is performed by the control unit 443 based on the detection signal.
- a belt (not shown) Attach the communication switching means 406 and attach the transmitting device 408 to the wrist. Also, the receiving device 409 is installed at a position away from the bed 402 and within a range where radio waves from the transmitting device 408 can reach.
- a detection signal is output from the nasal respiration sensor 413 to the communication switching unit 406 according to the breathing.
- the communication switching unit 406 stores the detection signal in the memory 422 for a certain period of time, and the abnormality determination unit 424 determines whether or not a respiratory abnormality has occurred.
- the horizontal axis in FIG. 27 indicates the passage of time
- the vertical axis indicates the intensity of the detection signal output from the nasal respiration sensor 413 according to the subject's breathing.
- the region from the rise to the peak position (apex) substantially corresponds to inspiration
- the region from the peak position to the noise level substantially corresponds to expiration.
- the time during which the respiratory abnormality persists is the time from the fall of the peak that exceeds the apnea criterion Sa to the rise of the next peak that exceeds the apnea criterion Sa, and this is the apnea time ta. .
- the apnea time ta is measured by the apnea time measuring section 425 of the abnormality determining means 424.
- apnea time ta exceeds a determination time (for example, 10 seconds) set in a memory in advance, it is determined that the breathing is abnormal.
- the apnea determination criterion Sa is set to a value higher than the signal strength corresponding to the actual apnea.
- abnormality determination means 424 determines that the breathing is abnormal
- communication switching means 406 outputs a signal (transmission command signal) instructing transmission apparatus 408 to transmit a detection signal. Further, of the detection signals temporarily stored in memory 422, a signal corresponding to respiratory abnormality is output to transmitting device 408.
- the transmitting device 408 Upon receiving the transmission command signal, the transmitting device 408 converts the detection signal to a transmission wave. The signal is superimposed and transmitted to the receiving device 409 with a predetermined output. Note that transmitting apparatus 408 does not transmit radio waves when a transmission command signal and a detection signal are not input. Further, the communication switching means 406 may output only the detection signal without outputting the transmission command signal, and the transmission device 8 may automatically transmit the detection signal when the detection signal is acquired.
- Receiving apparatus 409 that has received the radio wave demodulates the detection signal, and performs data analysis in control section 443. Specifically, the detection signal is graphed and output to the display unit 445. The receiving device 409 can also determine whether the breathing is normal or abnormal based on the profile of the detection signal, and can also display the determination result. In addition, the detection signal and the result of the data processing are recorded in the recording device 444 so that the detection signal can be confirmed later.
- the detection device 404 that detects respiration during sleep is attached to the subject, and the processing device that performs data processing of the detection signal at a location away from the subject (the reception device 409 ) Is installed and the detection signal is obtained using wireless communication, so that the subject's sense of restraint can be significantly reduced.
- a communication switching means 406 is provided between the detection device 404 and the transmission device 408 to determine a respiratory abnormality (including a danger of respiratory abnormality; the same applies hereinafter) based on a change in the detected signal. Since the detection signal is transmitted only from the transmission device 408 to the transmission device 408, the time during which the transmission device 408 transmits the detection signal can be shortened, and the life of the battery 435 (see FIG. 25) of the transmission device 408 is prolonged. be able to.
- the abnormality determining means 424 shown in FIG. 25 may use a respiratory cycle measuring section 426 instead of the apnea time measuring section 425.
- the respiratory cycle measuring unit 426 may examine the frequency component of the detection signal and determine the respiratory abnormality based on the respiratory cycle (frequency). The determination process in such a case will be described with reference to FIGS. 27 and 28.
- the presence or absence of abnormal respiration can be determined by Fourier transforming the detection signal and examining the number and position of frequency peaks.
- the abnormality determining means 424 may include both the apnea time measuring section 425 and the respiratory cycle measuring section 426. By doing so, the accuracy of the abnormality determination can be further improved.
- the communication switching means 406 may include a pulse signal generating means (not shown) for generating a pulse signal from the detection signal. As shown in FIG. 29, this pulse-like signal generating means generates a pulse-like signal such as 400F in response to a detection signal such as 400E. More specifically, when a peak of the detection signal occurs with the subject's breathing, a pulse signal having a height proportional to the amplitude of the detection signal is generated each time the peak falls. The width of this pulse signal is controlled to be smaller than the half width of the peak of the detection signal.
- the receiving device 409 receives such a pulse signal as a signal indicating the respiratory state of the subject. Further, receiving apparatus 409 can also determine whether or not the subject has a normal respiratory force based on the generation cycle and pulse height. In such a sleep respiration state measuring device 401, the transmitting device 408 transmits a pulse signal to the receiving device 409 only once for each breath, so that the information amount of wireless communication Can be reduced. Therefore, the life of the battery 435 of the transmitting device 408 can be extended.
- the pulse-like signal corresponding to the detection signal can be obtained not only when the abnormality determining means 424 of the communication switching means 406 determines that the breathing is absent but also when the breathing is normal. May be transmitted. Also, the pulse-like signal generating means may be provided in the transmitting device 408 instead of the communication switching means 406.
- the sleep respiratory condition measuring device 401 may integrally configure the detecting device 404, the communication switching means 406, and the transmitting device 408.
- a detection device 414 as shown in FIG. 30 has two nasal respiration sensors 413 corresponding to nostrils, 06 and a transmission device 408.
- the transmission device 408 includes a transmitter 433, an antenna 434, and a battery 435 shown in FIG.
- a stopper 412 as shown in FIG. 24 or a band fastened to the head.
- the detecting device 404, the communication switching means 406, and the transmitting device 408 are integrally formed and further attached under the subject's nose, so that the cable 405 shown in FIG. , 407 become unnecessary, and the sense of restraint of the subject can be further reduced. Further, the cooperation between the communication switching means 406 and the transmitting device 408 can extend the life of the battery 435 as described above.
- the detecting device 404 and the transmitting device 408 may be integrally configured. In this case, the same effect as described above can be obtained.
- a cable 405 connecting the detection device 404 and the communication switching unit 406 may be provided with a detachable unit 405a, and the cable 405 may be configured to be detachable from the detection device 404.
- the attachment / detachment means 405a is provided at the tip of the cable 405 on the detection device 404 side.
- the attachment / detachment means 405a may be a member such as a clip for fitting the cable 405 to the detection device 404, or a member such as a screw for screwing the cable 405 to the detection device 404.
- the detecting device 404 can be separated from the communication switching unit 406 and the transmitting device 408 by providing the attaching / detaching unit 405a. Therefore, when the detection device 404 is damaged, it can be easily replaced.
- the detection device 404 can be disposable or can be disinfected and reused, so that the detection device 404 can always be kept clean. Further, if the communication switching means 406 and the transmitting device 408 are always attached to the subject, and the detecting device 404 is connected as needed, the burden on the subject can be further reduced.
- the sleep respiratory state measurement device may be configured to have no communication switching means 406, that is, a configuration in which the detection device 404 is directly connected to the transmission device 408 by the cable 407.
- the attachment / detachment unit having the same arrangement and configuration as the attachment / detachment unit 405a may be provided on the cable 407, and the detection device 404 may be detachably attached to the transmission device 408. Also in this case, it is possible to always keep the detection device 404 clean, and it is also possible to share the transmission device 408.
- the detection device 404 and the communication switching means 406 may be integrally formed, and these may be connected to the transmission device 408 by a cable 407.
- the cable 407 can be provided with the attaching / detaching means having the same arrangement and configuration as the attaching / detaching means 405a. In this way, the above-described effects can be obtained.
- the sleep respiratory condition measuring device 451 of this embodiment is characterized in that the output of a radio wave transmitted from the transmitting device 408 is adjusted.
- a transmission output adjusting means 452 attached to the subject and a receiving device 409 are used.
- transmission output adjusting means 452 is connected to detection device 404 by cable 405 and to transmission device 408 by cable 407. Specifically, it includes a wireless communication unit, an output operation unit 455, and an input / output interface unit 423.
- the wireless communication means includes an antenna 453 for receiving data (amplitude data described later) transmitted from the receiving device 409 and a receiver 454. Further, the output calculation unit 455 calculates the output of the radio wave transmitted from the transmission device 408 based on the amplitude data.
- the receiving device 409 includes a wireless communication unit, a control unit 443, a recording device 444, and a display unit 445.
- the wireless communication means includes an antenna 441 for receiving a radio wave transmitted from the transmitting device 408 and a receiver 442.
- the receiving device 409 includes a receiving intensity measuring unit 446 and an amplitude data transmitting unit 447.
- the reception intensity measuring means 446 measures the intensity of the radio wave (signal) received by the antenna 441 and the receiver 442. Amplitude data transmission
- the means 447 transmits the amplitude data to the transmission output adjusting means 452.
- the control unit 443 has amplitude data setting means 448.
- the amplitude data setting means 448 compares the predetermined setting value with the reception intensity measured by the reception intensity measurement means 446, and determines the amplitude data.
- the set value here corresponds to a radio wave intensity required for receiving apparatus 409 to receive a radio wave.
- This set value is a predetermined value. Further, an allowable range of a certain width for this set value is set.
- the amplitude data is an output of the transmitting device 8, that is, a target value of the amplitude of the radio wave, or a signal simply instructing an increase or decrease of the amplitude or a maintenance of the current state.
- the transmitting device 408 transmits a test signal to the receiving device 409.
- the transmission of the test signal may be performed automatically or by the operation of the subject.
- Receiving apparatus 409 receives this signal, and measures its radio wave intensity by reception intensity measuring means 446.
- the amplitude data setting means 448 sets the amplitude data so as to increase the output of the transmitting device 408.
- the amplitude data setting means 448 sets the amplitude data so as to decrease the output of the transmitting device 408. Then, the set amplitude data is transmitted from the amplitude data transmitting means 447 to the transmission output adjusting means 452 on the subject side.
- Transmission output adjusting means 452 receives the amplitude data and passes it to transmitting apparatus 408. If the amplitude data indicates an increase or decrease in the amplitude, the transmitting device 408 increases or decreases the amplitude of the radio wave, that is, the output, based on the amplitude data. As a result, the signal is transmitted from the transmitting device 408 with the required output.
- the required output may not be obtained at one time.
- the reception device 409 and the transmission output adjusting means 452 cooperate to repeatedly increase or decrease the amplitude of the radio wave transmitted from the transmission device 408 so that the radio field intensity falls within the set value. Then, a respiratory test of the subject in this state is started. Thereafter, the receiving device 409 transmits a detection signal with the adjusted output, and the receiving device 409 performs data analysis and the like. And receive during this time The device 409 continues to measure the radio wave intensity, sets amplitude data as necessary, and adjusts the amplitude of the radio wave transmitted from the transmitting device 408 by the transmission output adjusting means 452.
- the sleep respiratory condition measuring device 451, the transmission output adjusting device 452, the receiving intensity measuring device 446, the amplitude data transmitting device 447, and the amplitude data setting device 448 constitute a feedback device, and the transmitting device 408.
- Feedback control is performed so that the amplitude of the radio wave output from the terminal becomes necessary and sufficient. Therefore, the output of the wireless communication is controlled to the minimum necessary size, and the life of the battery 435 of the transmitter 408 can be extended.
- this sleep respiration state measuring apparatus 451 may include the communication switching means 406 in the fifth embodiment described above.
- the transmission output adjusting means 452 and the communication switching means 406 may be configured integrally or separately. With such a configuration, the amount of signals for wireless communication can be reduced. Then, by performing feedback control on the amplitude of the radio wave, the life of the battery 435 can be further extended.
- attaching / detaching means (for example, attaching / detaching means 405a shown in FIG. 31) is provided on the cables 405, 407 connecting the transmission output adjusting means 452 and the other devices 404, 408, and the detecting device 404 is connected to the transmission output adjusting means 452,
- the transmission device 408 may be configured to be detachable.
- the sleep respiratory condition measuring device 461 of this embodiment is characterized in that a recording medium 462 for recording a detection signal of the detecting device 404 can be mounted.
- the detecting device 404 has two nasal respiration sensors 413 (not shown) (see FIG. 24), and a recording medium writing device (data writing means) 463 for recording a detection signal from the nasal respiration sensor 413 and And a notch 464 serving as a power supply.
- the recording medium writing device 463 is provided with a recording medium mounting section (first mounting means) 463a to which the recording medium 462 is removably mounted.
- the recording medium 462 is a medium on which a predetermined amount of data can be recorded using magnetism or the like.
- the information recorded on the recording medium 462 can be read by the analyzer 465.
- the analyzer 465 reads the detection signal, and performs data analysis and data display.
- the analyzer 465 has a storage device 444 (see FIG. 26) for storing the detection signal read from the recording medium 462.
- the analyzer 465 includes a control unit 443 (see FIG. 26) for performing data processing therein, and a monitor 467 as display means.
- the recording medium reading device 466 is provided with a recording medium mounting section (second mounting means) 466a for mounting the recording medium 462.
- the analyzer 465 may be a general-purpose computer as long as the information on the recording medium 462 can be read.
- the detection device 404 records, for example, a detection signal for one night on the recording medium 462 in chronological order.
- the recording medium 462 is taken out from the detection device 404 and attached to the analysis device 465.
- the detection signal is read from the recording medium 462, necessary processing is performed, and the result is displayed on the monitor 467.
- the information exchange means (the recording medium writing device 463 and the recording medium mounting unit 463a) on the detection device 404 side and the information exchange means (the recording medium reading device) on the analysis device 465 side Information is transmitted by moving the recording medium 462 between the 466 and the recording medium mounting section 466a). Therefore, since the detection device 404 and the analysis device 465 can be made independent, the sense of restraint of the subject can be reduced as in the case of performing wireless communication. Furthermore, power consumption can be reduced as compared with the case of performing wireless communication, so that the service life of the notebook 464 can be extended.
- the sleep respiratory condition measuring device 461 can be manufactured at a low cost.
- the sleep respiratory state measurement device 471 analyzes the detection signal received by the reception device 409 and displays the analysis result on another computer 473 separate from the reception device 409. It is characterized by.
- the detection device 404 attached to the subject The replacement means 406 and the transmission device 408 have the same configuration as in the fifth embodiment. It is assumed that the detection signal includes a pulse signal as shown in FIG.
- the receiving device 409 has an antenna 441 and a receiver 442, a control unit 443, a recording device 444, and data communication means 449.
- the data communication means 449 has a terminal to which the cable 472 is mounted.
- the computer 473 is a general-purpose computer having a control device 473a and a monitor 473b. And, on this computer, the algorithm for data analysis is installed.
- This receiving apparatus 409 does not perform data analysis, but only takes in data. Therefore, data analysis and data display are performed by the controller 473a and the motor 473b of the computer 473. Therefore, the data recording, data processing, and data display of the sleep respiratory condition measuring device 471 are performed by the receiving device 409 and the computer 473.
- the receiving device 409 does not need an algorithm for data analysis, so that the receiving device 409 can be inexpensive. Further, since data of a plurality of subjects can be stored in the computer 473, a large amount of data can be stored in a database.
- the receiving device 409 and the computer 473 may be linked by using the recording medium 462 as a medium.
- the recording medium 462 is used instead of the cable 472 (see FIG. 35)
- the receiving device 409 and the computer 473 are located at a distance from each other, or when data on a plurality of subjects is processed, the work becomes easy.
- another computer 473 may be connected to the web server 474 via a network, and the web server 474 may have an analysis algorithm for data processing.
- the computer 473 transmits the data recorded on the recording medium 462 to the web server 474, receives the analysis result by the web server 474, and displays the result on the monitor 473b.
- a special analyzer is not required. Also, since it is not necessary to install the analysis algorithm in each computer 473, data processing can be performed simply and inexpensively.
- the receiving device 409 may transmit detection signal data to the web server 474, and the receiving device 409 may acquire an analysis result.
- the present invention is not limited to the above embodiments.
- a sound source and a speaker may be provided in the receiving device 409, and an alarm may be sounded when it is determined that there is an abnormality.
- receiving apparatus 409 is not limited to a stationary terminal apparatus, but may be a portable information processing terminal or a mobile communication terminal.
- the sleep respiratory condition measuring devices 401, 451, 461, and 471 include sensors for detecting fluctuations and finger sensors for detecting oxygen saturation, and the signals of these sensors are also transmitted from the transmitting device 408. May be configured. In this case, the signal of another sensor is transmitted only when it is determined that the breathing is abnormal, so that the life of the battery 435 of the transmitting device 408 can be improved. Further, the signal can be replaced with a pulse signal by the communication switching means 406 or the transmitting device 408 to improve the life of the battery 435.
- the respiratory sensor detects a change in air pressure due to inflow or outflow of respiratory air from a nostril or a mouth, so that the subject's breathing can be performed with high accuracy without being affected by a temperature change such as room temperature. It can be applied as a sleep respiratory condition measuring device capable of measuring a condition.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04792127A EP1681018A1 (en) | 2003-10-07 | 2004-10-07 | Sleep aspiration state measurement device |
US11/398,454 US20060270941A1 (en) | 2003-10-07 | 2006-04-05 | Device for measuring respiration during sleep |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003348141A JP2005110907A (ja) | 2003-10-07 | 2003-10-07 | 睡眠時呼吸検査装置 |
JP2003-348141 | 2003-10-07 | ||
JP2003-375528 | 2003-11-05 | ||
JP2003375528A JP2005137479A (ja) | 2003-11-05 | 2003-11-05 | 睡眠時呼吸状態測定装置 |
JP2003-414746 | 2003-12-12 | ||
JP2003414745A JP2005168883A (ja) | 2003-12-12 | 2003-12-12 | 呼吸検査装置 |
JP2003414746A JP2005168884A (ja) | 2003-12-12 | 2003-12-12 | 呼吸検査装置 |
JP2003-414745 | 2003-12-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/398,454 Continuation US20060270941A1 (en) | 2003-10-07 | 2006-04-05 | Device for measuring respiration during sleep |
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WO2005034750A1 true WO2005034750A1 (ja) | 2005-04-21 |
Family
ID=34437723
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PCT/JP2004/014829 WO2005034750A1 (ja) | 2003-10-07 | 2004-10-07 | 睡眠時呼吸状態測定装置 |
Country Status (3)
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US (1) | US20060270941A1 (ja) |
EP (1) | EP1681018A1 (ja) |
WO (1) | WO2005034750A1 (ja) |
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JP2011125696A (ja) * | 2009-12-18 | 2011-06-30 | Korea Electronics Telecommun | 携帯型消費熱量測定装置 |
WO2019167643A1 (ja) * | 2018-02-27 | 2019-09-06 | 学校法人帝京大学 | 鼻腔通気度検査装置 |
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JP2011518585A (ja) * | 2008-04-17 | 2011-06-30 | ダイメディックス コーポレイション | 単一センサからの多数出力の作成 |
JP5067698B2 (ja) * | 2008-06-03 | 2012-11-07 | 日本光電工業株式会社 | フロー計測システム並びに生体情報モニタ |
WO2009158425A1 (en) * | 2008-06-24 | 2009-12-30 | Dymedix Corporation | Respiratory air temperature and pressure sensor |
US10891356B2 (en) * | 2008-09-24 | 2021-01-12 | Resmed Sensor Technologies Limited | Contactless and minimal-contact monitoring of quality of life parameters for assessment and intervention |
US9155493B2 (en) * | 2008-10-03 | 2015-10-13 | Nellcor Puritan Bennett Ireland | Methods and apparatus for calibrating respiratory effort from photoplethysmograph signals |
US9526429B2 (en) | 2009-02-06 | 2016-12-27 | Resmed Sensor Technologies Limited | Apparatus, system and method for chronic disease monitoring |
US9445750B2 (en) | 2009-05-18 | 2016-09-20 | Koninklijke Philips N.V. | Heart rate measuring device |
EP2453794B1 (en) | 2009-07-16 | 2017-01-11 | ResMed Ltd. | Detection of sleep condition |
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US20110251510A1 (en) * | 2010-04-07 | 2011-10-13 | The Trustees Of The University Of Pennsylvania | Respiration sensor for an infant feeding performance measurement device |
US20120092171A1 (en) * | 2010-10-14 | 2012-04-19 | Qualcomm Incorporated | Mobile device sleep monitoring using environmental sound |
US20140213937A1 (en) * | 2011-02-15 | 2014-07-31 | The General Hospital Corporation | Systems and methods to monitor and quantify physiological stages |
US9443419B2 (en) * | 2011-08-16 | 2016-09-13 | University Of Utah Research Foundation | Monitoring breathing via signal strength in wireless networks |
US10980443B2 (en) * | 2012-12-11 | 2021-04-20 | Sai Kumar | Conscious rhythmic breathing sensing |
TWI571239B (zh) * | 2014-08-29 | 2017-02-21 | 萊鎂醫療器材股份有限公司 | 睡眠品質偵測裝置 |
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JP6952500B2 (ja) * | 2017-05-31 | 2021-10-20 | 日本光電工業株式会社 | 生体情報処理装置 |
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Also Published As
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US20060270941A1 (en) | 2006-11-30 |
EP1681018A1 (en) | 2006-07-19 |
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