Phonopneumograph for analyzing breath sounds, produced by a respiratory system, the There is further provided, in accordance with a preferred embodiment of the invention, a Hundreds) arousals during the night and reduced oxygenation. OSA causes interference with the normal pattern of sleep, multiple (some time as many as In these conditions, the patient's upper airway collapses orīecomes narrowed or flutter develops, leading to a complete or partial interruption of the flow. Of nocturnal breathing disorders is the obstructive sleep - apnea (OSA) syndrome and its relatedĬonditions (hypopnea, snoring). Of these children have normal physical examination and spirometry during the day. It is often suspected by the physician after hearing a description of theĬourse of events by a parent, but an objective diagnosis is difficult.
That causes an acute onset of cough, wheezing and dyspnoea A nighttime onset of asthma attacks Gastro-esophageal reflux of acidic contentįrom the stomach in supine patients is often associated with aspiration of the acid into the airways Which is relieved by shifting to an upright posture. This process leads to a sudden onset of breathlessness, usually during the third part of the night, Water accumulates in the lung of the supine patient and interferes with alveolar gas exchange. Paroxysmal nocturnal dyspnoea (PND) is a symptom of congestive heart failure (CHF) where Nighttime dyspnoea caused by cardiac, gastrointestinal, and pulmonary disease processes. Nocturnal respiratory symptoms are common, yet difficult to assess.
A61B5/0823- Detecting or evaluating cough events.A61B5/08- Detecting, measuring or recording devices for evaluating the respiratory organs.A61B5/00- Measuring for diagnostic purposes Identification of persons.A61B7/003- Detecting lung or respiration noise.A61B- DIAGNOSIS SURGERY IDENTIFICATION.A61- MEDICAL OR VETERINARY SCIENCE HYGIENE.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US729651 external-priority Application filed by Karmel Medical Acoustic Technologies Ltd filed Critical Karmel Medical Acoustic Technologies Ltd Publication of EP0951867A2 publication Critical patent/EP0951867A2/en Publication of EP0951867A3 publication Critical patent/EP0951867A3/en Status Withdrawn legal-status Critical Current Links Original Assignee Karmel Medical Acoustic Technologies Ltd Priority date (The priority date is an assumption and is not a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 or warranty as to the accuracy of the list.) ( en Inventor Noam Gavriely Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Withdrawn Application number EP99201043A Other languages German ( de)
#Adventitious breath sounds causes pdf#
Google Patents Determining the presence of two breath soundsĭownload PDF Info Publication number EP0951867A2 EP0951867A2 EP99201043A EP99201043A EP0951867A2 EP 0951867 A2 EP0951867 A2 EP 0951867A2 EP 99201043 A EP99201043 A EP 99201043A EP 99201043 A EP99201043 A EP 99201043A EP 0951867 A2 EP0951867 A2 EP 0951867A2 Authority EP European Patent Office Prior art keywords breath sound sounds segment data Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents EP0951867A2 - Determining the presence of two breath sounds EP0951867A2 - Determining the presence of two breath sounds
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