WO2005020815A1 - Respiratory motion detection system - Google Patents

Respiratory motion detection system Download PDF

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Publication number
WO2005020815A1
WO2005020815A1 PCT/BE2003/000146 BE0300146W WO2005020815A1 WO 2005020815 A1 WO2005020815 A1 WO 2005020815A1 BE 0300146 W BE0300146 W BE 0300146W WO 2005020815 A1 WO2005020815 A1 WO 2005020815A1
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WO
WIPO (PCT)
Prior art keywords
monitoring
respiratory
invasive
pir
animals
Prior art date
Application number
PCT/BE2003/000146
Other languages
French (fr)
Inventor
Jean-Philippe Hermanne
Arnaud Tans
Original Assignee
Jean-Philippe Hermanne
Arnaud Tans
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jean-Philippe Hermanne, Arnaud Tans filed Critical Jean-Philippe Hermanne
Priority to EP03818368A priority Critical patent/EP1659941A1/en
Priority to PCT/BE2003/000146 priority patent/WO2005020815A1/en
Publication of WO2005020815A1 publication Critical patent/WO2005020815A1/en

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Classifications

    • 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
    • A61B5/087—Measuring breath flow
    • A61B5/0878—Measuring breath flow using temperature sensing means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • A61B5/1135—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing by monitoring thoracic expansion

Definitions

  • Cardiopulmonary arrest is in most cases the initial stage of death. Sudden death is a natural death that occurs unexpectedly in an active subject. It is increasingly observed in the general population and the causes are multiple:
  • Heart origin coronary affections, rhythm disturbances, .
  • Sudden cardiac death is often the first symptom of coronary artery disease and is responsible for 50% of cardiac deaths. In France, the annual number of sudden death can be estimated at 60,000, 80% of which is of coronary origin.
  • Vascular origin Cerebral or aortic aneurysm rupture
  • Pulmonary origin mass pulmonary embolism, sleep apnea, 10.1.
  • Metabolic origins ionic disorders, alcohol, drugs, poison, CO, ..
  • the respiratory function monitoring technique described below provides a solution both in terms of the cost of the device and the problem of skin connection of electrodes to the patient.
  • the respiratory movement detector is a new concept for observing an individual's physiological respiratory movements, based on the principle of infrared movement detection (PIR technology). Day and night, it can detect the amplification of the chest with each inspiration and expiration as well as the flow of warm air exhaled, both in adults and in newborns, as well as in veterinary medicine. In case of prolonged respiratory arrest of the individual, the electronic system allows the triggering of a local and / or remote alarm.
  • Non-invasive respiratory monitoring without skin contact (“non-invasive patient observation”) of patients hospitalized in standard units (outside of intensive care and middle care).
  • - ⁇ - Non-invasive respiratory monitoring without skin contact (“non-invasive patient observation”) of animals in veterinary medicine
  • - ⁇ - Sleep apnea monitoring of animals in veterinary medicine
  • - ⁇ - Sleep apnea monitoring of animals in veterinary medicine
  • - ⁇ - Sleep apnea monitoring - ⁇ - Home monitoring of sudden deaths in adults.
  • Prevention of sudden death of the newborn in the absence of risk factor or the need for cardiac and respiratory contact monitoring).
  • the operation of the DMR is based on passive infrared motion detector (PIR) passive detection and the initiation of an appropriate response.
  • the equipment can include 3 to 8 PIR detectors (“PIR sensor”) placed around and at a distance (50 to 150 cm) from the thorax and the head of the individual.
  • PIR detectors are of the Heimann or Murata type. They are all connected to a single integrated logic controller (“control logic”) circuit via an interface and an amplifier for PIR sensor.
  • control logic integrated logic controller
  • the PIR sensors must have the greatest possible motion detection, therefore the highest sensitivity (see below). They are equipped with Fresnel lenses increasing their sensitivity to very small movements.
  • control logic is in relation with a relay relay triggering a local or remote alarm by irradio wave (f 1gure 1): 4- If at least one of the PIR detectors in the system detects respiratory or other movement, the electronic circuit keeps the alarm switch relay OFF.
  • the DMR also includes an LED-type indicator light and a discreet audible signal (click) to objectify each movement detection by the individual.
  • the device is powered on the 220 V network, but a backup battery with 24 hour autonomy is also provided.
  • Figures 2 and 3 show a DMR placed on a movable arm placed on a wall. In this situation, the PIR sensors detect movements from above.
  • FIGS 4 and 5 show a DMR arranged in a frame and a bed structure (child's in this case),
  • the PIR sensors here detect movements laterally. A combination of the different detection fields (from above or sideways) is obviously possible in difficult situations. Details of PIR sensors:
  • the DMR can be equipped for example with a double pyroelectric element sensor having a high sensitivity and a rectangular window allowing a finer spectrum.

Abstract

The invention relates to a novel respiratory motion detector (RMD) which is used to observe the physiological respiratory motion of a patient and which is based on infrared motion detection (PIR technology). The inventive detector can be used during the day and at night in order to detect chest expansion with each inhale and exhale and to detect the warm exhaled air flow. The invention is suitable for both adults and new-borns as well as for use in veterinary medicine. In the event of a prolonged respiratory arrest, the electronic system can be used to trigger a local and/or remote alarm.

Description

SYSTEME DE DETECTION DE MOUVEMENTS RESPIRATOIRES BREATHING MOTION DETECTION SYSTEM
1. Introduction :1. Introduction:
L'arrêt cardio-respiratoire (AR) est dans la majorité des cas l'étape initiale de la mort. La mort subite est une mort naturelle qui survient de façon inattendue chez un sujet en pleine activité. Elle est de plus en plus observée dans la population générale et les causes en sont multiples :Cardiopulmonary arrest (AR) is in most cases the initial stage of death. Sudden death is a natural death that occurs unexpectedly in an active subject. It is increasingly observed in the general population and the causes are multiple:
• Origine cardiaque (affections coronaires, troubles du rythme,...). La mort subite d'origine cardiaque serait souvent le premier symptôme de la maladie coronarienne et serait responsable de 50 % des morts d'origine cardiaque. En France, on peut estimer à 60.000 le nombre annuel de mort subite dont 80% d'origine coronarienne. • Origine vasculaire (rupture d'anévrysme cérébral ou aortique) • Origine pulmonaire (embolie pulmonaire massive, apnée du sommeil,...) • Origines métaboliques (troubles ioniques, alcool, drogues, poison, CO,..)• Heart origin (coronary affections, rhythm disturbances, ...). Sudden cardiac death is often the first symptom of coronary artery disease and is responsible for 50% of cardiac deaths. In France, the annual number of sudden death can be estimated at 60,000, 80% of which is of coronary origin. • Vascular origin (cerebral or aortic aneurysm rupture) • Pulmonary origin (massive pulmonary embolism, sleep apnea, ...) • Metabolic origins (ionic disorders, alcohol, drugs, poison, CO, ..)
Dans la situation de la mort subite, l'AR se manifeste par une perte de conscience brutale, l'absence de mouvement ventilatoire et l'absence de pouls périphérique. Seul le rétablissement d'une circulation et d'une ventilation efficace îe plus rapidement possible permet d'espérer une survie avec nom ™TOTOTIJITO de séquelles. La prévention en amont de l'accident est bien évidemment capitale.In the situation of sudden death, RA manifests itself in sudden loss of consciousness, lack of ventilatory movement and absence of peripheral pulse. Only the reestablishment of efficient circulation and ventilation as quickly as possible makes it possible to hope for survival with nom ™ TOTOTIJITO sequelae. Prevention before the accident is obviously essential.
Le seul moyen actuel de prévention pour les sujets à risque est le monitoring cardiaque et/ou respiratoire à l'aide d'électrodes cutanées de contact. Ces moyens techniques ne sont disponibles pratiquement qu'en milieu hospitalier ou dans certaines situations particulières à la maison. En effet, le coût financier des monitoring et le besoin permanent de contact cutané des électrodes rendent ce moyen de surveillance difficile à grande échelle ou à domicile. Et pourtant de nombreuses situations cliniques au domicile du patient ou en milieu hospitalier (à l'exclusion des soins intensifs) nécessitent une surveillance 24 heures sur 24 heures ou durant le sommeil d'au moins une fonction vitale.The only current means of prevention for subjects at risk is cardiac and / or respiratory monitoring using skin contact electrodes. These technical means are only practically available in hospitals or in certain specific situations at home. Indeed, the financial cost of monitoring and the permanent need for skin contact with the electrodes make this means of surveillance difficult on a large scale or at home. And yet many clinical situations in the patient's home or in a hospital environment (excluding intensive care) require monitoring 24 hours a day or during sleep for at least one vital function.
La technique de surveillance de la fonction respiratoire décrite ci-dessous apporte une solution tant au niveau du coût de l'appareillage, que du problème de connection cutanée d'électrodes au patient.The respiratory function monitoring technique described below provides a solution both in terms of the cost of the device and the problem of skin connection of electrodes to the patient.
2. Principe :2. Principle:
Le détecteur de mouvement respiratoire (DMR) est un nouveau concept d'observation des mouvements respiratoires physiologiques d'un individu, basé sur le principe de détection de mouvements par infra rouge (PIR technology). De jour comme de nuit, il permet de détecter l'ampliation du thorax à chaque inspiration et expiration ainsi que le flux d'air chaud expiré, tant chez l'adulte que chez le nouveau né, ainsi qu'en médecine vétérinaire. En cas d'arrêt respiratoire prolongé de l'individu, le système électronique permet le déclenchement d'une alarme locale et/ou à distance. 3. Applications :The respiratory movement detector (DMR) is a new concept for observing an individual's physiological respiratory movements, based on the principle of infrared movement detection (PIR technology). Day and night, it can detect the amplification of the chest with each inspiration and expiration as well as the flow of warm air exhaled, both in adults and in newborns, as well as in veterinary medicine. In case of prolonged respiratory arrest of the individual, the electronic system allows the triggering of a local and / or remote alarm. 3. Applications:
-φ- Monitoring respiratoire non invasif et sans contact cutané (« non invasive patient observation ») des patients hospitalisés dans des unités banalisées (en dehors des soins intensifs et du middle care). -φ- Monitoring respiratoire non invasif et sans contact cutané (« non invasive patient observation ») d'animaux en médecine vétérinaire -φ- Monitoring des apnées du sommeil. -φ- Monitoring à domicile des morts subites chez l'adulte. -φ Prévention de la mort subite du nouveau né (en l'absence de facteur de risque ou de nécessité d'un monitoring cardiaque et respiratoire de contact).-φ- Non-invasive respiratory monitoring without skin contact (“non-invasive patient observation”) of patients hospitalized in standard units (outside of intensive care and middle care). -φ- Non-invasive respiratory monitoring without skin contact (“non-invasive patient observation”) of animals in veterinary medicine -φ- Sleep apnea monitoring. -φ- Home monitoring of sudden deaths in adults. -φ Prevention of sudden death of the newborn (in the absence of risk factor or the need for cardiac and respiratory contact monitoring).
4. Description :4. Description:
Le fonctionnement du DMR est basé sur la détection de mouvement passif par infra rouge (passive infra red motion detector : PIR) et de l'initiation d'une réponse appropriée. Le matériel peut comporter 3 à 8 détecteurs PIR (« PIR sensor ») disposés autour et à distance (50 à 150 cm) du thorax et de la tête de l'individu. Les détecteurs PIR sont de type Heimann ou Murata. Ils sont tous reliés à un même circuit intégré de contrôleur logique classique (« control logic ») via un interface et un amplificateur pour PIR sensor. Sur ce nouveau concept, il n'est pas prévu de filtre pour les interférences de fond compte tenu, que dans cette situation, les capteurs PIR doivent avoir la plus grande détection de mouvement possible donc la plus grande sensibilité (voir ci-dessous). Ils sont équipés de lentilles de Fresnel augmentant leur sensibilité aux très petits mouvements. Le « control logic » est en relation avec un relais commutateur déclenchant une alarme locale ou à distance par onde iradio (fϋgure 1): 4- Si au moins un des détecteurs PIR du système capte un mouvement respiratoire ou autre, le circuit électronique garde le relais commutateur de l'alarme sur OFF.The operation of the DMR is based on passive infrared motion detector (PIR) passive detection and the initiation of an appropriate response. The equipment can include 3 to 8 PIR detectors (“PIR sensor”) placed around and at a distance (50 to 150 cm) from the thorax and the head of the individual. PIR detectors are of the Heimann or Murata type. They are all connected to a single integrated logic controller (“control logic”) circuit via an interface and an amplifier for PIR sensor. On this new concept, there is no provision for a background interference filter, given that in this situation, the PIR sensors must have the greatest possible motion detection, therefore the highest sensitivity (see below). They are equipped with Fresnel lenses increasing their sensitivity to very small movements. The “control logic” is in relation with a relay relay triggering a local or remote alarm by irradio wave (f 1gure 1): 4- If at least one of the PIR detectors in the system detects respiratory or other movement, the electronic circuit keeps the alarm switch relay OFF.
•Φ Si aucun détecteur du système ne captent de mouvements respiratoires dans un temps donné (programmation de 10, 20, 30 secondes ), mise sur ON du relais et l'alarme se déclenche localement ou à distance par émission radio. • Φ If no detector in the system captures respiratory movements in a given time (programming of 10, 20, 30 seconds), setting the relay ON and the alarm is triggered locally or remotely by radio transmission.
-Φ- La mise en route de ce système est automatique par capteur de pression au niveau du la literie (poids de l'individu).-Φ- The start-up of this system is automatic by pressure sensor on the bedding (weight of the individual).
Le DMR comporte également un témoin lumineux de type LED et un signal sonore discret (clic) permettant d'objectiver chaque détection de mouvement par l'individu. L'alimentation de l'appareil s'effectue sur le réseau 220 V mais une batterie de secours avec une autonomie de 24 heures est également prévue.The DMR also includes an LED-type indicator light and a discreet audible signal (click) to objectify each movement detection by the individual. The device is powered on the 220 V network, but a backup battery with 24 hour autonomy is also provided.
Les figures 2 et 3 représentent un DMR placé sur un bras mobile placé sur un mur. Dans cette situation, les capteurs PIR détectent les mouvements par le haut.Figures 2 and 3 show a DMR placed on a movable arm placed on a wall. In this situation, the PIR sensors detect movements from above.
Les figures 4 et 5 représentent un DMR disposé dans un cadre et une structure de lit (d'enfant dans ce cas de figure), Les capteurs PIR détectent ici les mouvements latéralement. Une combinaison des différents champs de détection (par le haut ou en latéral) est évidement possible dans des situations difficiles. Détails des capteurs PIR :Figures 4 and 5 show a DMR arranged in a frame and a bed structure (child's in this case), The PIR sensors here detect movements laterally. A combination of the different detection fields (from above or sideways) is obviously possible in difficult situations. Details of PIR sensors:
La technologie des capteurs PIR est maintenant bien connue et a été publiée dans de nombreux journaux spécialisés. Les « dual sensor PIR detectors » sont maintenant les plus largement utilisés.PIR sensor technology is now well known and has been published in numerous trade journals. The “dual sensor PIR detectors” are now the most widely used.
Le DMR peut être équipé par exemple d'un capteur à double élément pyroélectriques possédant une grande sensibilité et une fenêtre rectangulaire permettant un spectre plus fin.The DMR can be equipped for example with a double pyroelectric element sensor having a high sensitivity and a rectangular window allowing a finer spectrum.
• Spécifications techniques par exemple : o Champ de détection : 51 ° x 51 ° o Sensibilité : 3.9 mVpp o Longueur d'onde : 5-14 μm o Alimentation : 3-15 V o Filtre : 0 o Température d'utilisation : -25 à + 55° C o Lentille Fresnel en polyéthylène, indice de réfraction. • Technical specifications for example: o Detection field: 51 ° x 51 ° o Sensitivity: 3.9 mVpp o Wavelength: 5-14 μm o Power supply: 3-15 V o Filter: 0 o Operating temperature: -25 at + 55 ° C o Fresnel lens in polyethylene, refractive index.

Claims

REVENDICATIONCLAIM
Le détecteur de mouvement respiratoire (DMR) est un nouveau concept de détection de mouvement physiologique respiratoire humain ou animal. Il utilise une technologie reconnue par détecteur infra rouge de type PIR et circuit logique. La revendication de cette invention est l'application de cette technologie pour la détection de mouvement respiratoire chez l'être humain (voir application) ou en médecine vétérinaire (surveillance d'animaux opérés) :The respiratory movement detector (DMR) is a new concept for detecting physiological respiratory movement in humans or animals. It uses a technology recognized by PIR type infrared detector and logic circuit. The claim of this invention is the application of this technology for the detection of respiratory movement in humans (see application) or in veterinary medicine (monitoring of operated animals):
Partie caractérisante de cette revendication : • Pour la réalisation de cet appareillage : • Utilisation de détecteurs PIR à haute sensibilité. Utilisation de lentilles. Alarme incorporée et à distance par émission radio. L'interrupteur de l'appareil s'effectue par contacteur de pression sous la literie du patient (le poids du sujet met le système sur ON). Présence dans l'appareillage d'une batterie d'alimentation de secours.Characterizing part of this claim: • For the realization of this apparatus: • Use of PIR detectors with high sensitivity. Use of lenses. Built-in and remote alarm by radio transmission. The device switch is operated by a pressure switch under the patient's bedding (the subject's weight puts the system on ON). Presence in the switchgear of an emergency power supply battery.
Application de cette revendication : Monitoring respiratoire non invasif et sans contact cutané d'électrodes (« non invasive patient observation ») des patients hospitalisés dans des unités banalisées (en dehors des soins intensifs et du middle care). Monitoring respiratoire non invasif et sans contact cutané d'électrodes (« non invasive patient observation ») d'animaux en médecine vétérinaire Monitoring des apnées du sommeil. Monitoring à domicile des morts subites chez l'adulte. Prévention de la mort subite du nouveau né (en l'absence de facteur de risque ou de nécessité d'un monitoring cardiaque et respiratoire de contact). Application of this claim: Non-invasive respiratory monitoring without skin contact of electrodes (“non-invasive patient observation”) of patients hospitalized in generalized units (apart from intensive care and middle care). Non-invasive respiratory monitoring without skin contact with electrodes (“non-invasive patient observation”) of animals in veterinary medicine Monitoring of sleep apnea. Home monitoring of sudden deaths in adults. Prevention of sudden death of the newborn (in the absence of risk factor or the need for cardiac and respiratory contact monitoring).
PCT/BE2003/000146 2003-09-03 2003-09-03 Respiratory motion detection system WO2005020815A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03818368A EP1659941A1 (en) 2003-09-03 2003-09-03 Respiratory motion detection system
PCT/BE2003/000146 WO2005020815A1 (en) 2003-09-03 2003-09-03 Respiratory motion detection system

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
WO2011005992A2 (en) * 2009-07-10 2011-01-13 Suren Systems, Ltd. Infrared motion sensor system and method
FR2974289A1 (en) * 2011-04-19 2012-10-26 Raoul Parienti APPARATUS FOR MONITORING THE SLEEP OF THE INFANT AND ADULT FOR DETECTING THE APNEA AND MONITORING THE QUALITY OF THE SLEEP
WO2013171178A1 (en) 2012-05-14 2013-11-21 2-Observe Sprl Device and method for detecting respiratory movements
WO2014029922A1 (en) * 2012-08-22 2014-02-27 Raoul Parienti Infant and adult sleep monitoring apparatus for detecting apnea and monitoring sleep quality
JP2015522310A (en) * 2012-05-14 2015-08-06 ２—オブザーブ エス．エー． Respiratory motion detection device and detection method
DE102017011073B3 (en) 2017-11-30 2019-01-31 Patrick Zimmer Procedure for recording the rate of movement of calves during the first weeks of life for health monitoring.
US20200196942A1 (en) * 2017-05-16 2020-06-25 San Diego State University Research Foundation Method and system for monitoring a subject in a sleep or resting state

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
WO2011005992A2 (en) * 2009-07-10 2011-01-13 Suren Systems, Ltd. Infrared motion sensor system and method
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WO2013171178A1 (en) 2012-05-14 2013-11-21 2-Observe Sprl Device and method for detecting respiratory movements
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WO2014029922A1 (en) * 2012-08-22 2014-02-27 Raoul Parienti Infant and adult sleep monitoring apparatus for detecting apnea and monitoring sleep quality
US20200196942A1 (en) * 2017-05-16 2020-06-25 San Diego State University Research Foundation Method and system for monitoring a subject in a sleep or resting state
DE102017011073B3 (en) 2017-11-30 2019-01-31 Patrick Zimmer Procedure for recording the rate of movement of calves during the first weeks of life for health monitoring.

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