The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2026
Filed:
Aug. 29, 2022
Koninklijke Philips N.v., Eindhoven, NL;
Rafael Wiemker, Hamburg, DE;
Joerg Sabczynski, Norderstedt, DE;
Thomas Koehler, Hamburg, DE;
Cornelis Petrus Hendriks, Eindhoven, NL;
Roberto Buizza, Eindhoven, NL;
Jaap Roger Haartsen, Eindhoven, NL;
Michael Polkey, London, GB;
Rita Priori, Eindhoven, NL;
Nataly Wieberneit, Hamburg, DE;
Stefan Winter, Aachen, DE;
Kiran Hamilton J. Dellimore, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A respiratory monitoring device includes an electronic controller configured to: analyze an audio signal triggered during inspiratory and expiratory phases of a patient receiving mechanical ventilation therapy from a mechanical ventilator, the audio signal being acoustically coupled into the airway of the patient, to determine resonant frequencies of the airway; determine a shift in the resonant frequencies between the inspiratory and expiratory phases to determine a presence of pendelluft inside of a lung of the patient; and output an indication of the presence of pendelluft.