Apparatus and method for non-invasive thoracic radio...

A - Human Necessities – 61 – B

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A61B 5/0205 (2006.01) A61B 5/053 (2006.01)

Patent

CA 2663946

A radio apparatus and method for non-invasive, thoracic radio interrogation of a subject for the collection of hemodynamic, respiratory and/or other cardiopulmonary related data from the subject includes a antenna positionable proximally to the subject, a radio transmitter transmitting an unmodulator radio interrogation signal of a predetermined fixed frequency at a safe level of about 1 milliwatt or less from the antenna into the subject and a radio receiver capturing through the antenna, reflections of the transmitted radio interrogation signal returned from the subject. A Doppler component of the reflections contains the data that can be extracted from the captured reflections.

La présente invention concerne un appareil radio et un procédé d'interrogation radio non invasive du thorax chez un patient, permettant de collecter chez ce patient des données hémodynamiques, respiratoires et/ou d'autres données cardiopulmonaires liées. L'appareil comprend une antenne qui peut être placée de façon proximale par rapport au patient, un émetteur radio qui transmet un signal d'interrogation radio non modulé de fréquence fixe prédéfinie, à un niveau de sécurité inférieur ou égal à environ 1 milliwatt de l'antenne au patient, ainsi qu'un récepteur radio qui capture par le biais de l'antenne des réflexions du signal d'interrogation radio transmis retournées par le patient. Une composante Doppler des réflexions contient des données qui peuvent être extraites des réflexions capturées.

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