Non-invasive estimation of arterial blood gases

Surgery – Diagnostic testing – Respiratory

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128204, 600529, 600538, 600543, A61B 508

Patent

active

058003614

ABSTRACT:
A non-invasive system and procedure for deriving the blood gas content for a patient. The system measures the carbon dioxide concentration of the expiratory breath relative to volume. This data is then processed to derive arterial blood gas levels of carbon dioxide. If data sampling is in the time domain, the processing shifts the data from the time domain to the volume domain. The processing also iteratively assesses the significance of numerous variables. The resulting relationship provides a fast and accurate measure of blood gas content for both healthy and diseased lung patients.

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