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.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Medical Informatics (AREA)
• Molecular Biology (AREA)
• Veterinary Medicine (AREA)
• Biophysics (AREA)
• Pathology (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Public Health (AREA)
• Physics & Mathematics (AREA)
• Surgery (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Physiology (AREA)
• Pulmonology (AREA)
• Dentistry (AREA)
• Oral & Maxillofacial Surgery (AREA)
• Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

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• 2003
  • 2003-09-03 WO PCT/BE2003/000146 patent/WO2005020815A1/fr active Application Filing
  • 2003-09-03 EP EP03818368A patent/EP1659941A1/de not_active Withdrawn

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