Non-invasive device and method for the diagnosis of pulmonary vascular occlusions
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United States of America Patent
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Jun 10, 2003
Issued Date -
N/A
app pub date -
Sep 27, 2001
filing date -
Sep 27, 2001
priority date (Note) -
Expired
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Abstract
The invention involves a device and method for ascertaining the functioning of the respiratory system and determining whether a pulmonary embolism is present. The device comprises an apparatus containing sensors for measuring the oxygen and carbon dioxide concentrations as well as the volume of air inhaled and exhaled by a patient. From this data, a processor computes the ratio of carbon dioxide to oxygen for the volume of expired air and displays the results on a screen. By comparing the results to predetermined normal values, an accurate determination can be made regarding the presence of a pulmonary embolism.
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