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:
Jun. 13, 2017
Filed:
Sep. 23, 2011
Scott Mcgonigle, Edinburgh, GB;
Paul S. Addison, Edinburgh, GB;
James Ochs, Seattle, WA (US);
James Watson, Dunfermline, GB;
Scott McGonigle, Edinburgh, GB;
Paul S. Addison, Edinburgh, GB;
James Ochs, Seattle, WA (US);
James Watson, Dunfermline, GB;
Nellcor Puritan Bennett Ireland, Mervue, Galway, IE;
Abstract
A patient monitoring system may receive a photoplethysmograph (PPG) signal including samples of a pulse waveform. The PPG signal may demonstrate morphology changes based on respiration. The system may calculate morphology metrics from the PPG signal, the first derivative of the PPG signal, the second derivative of the PPG signal, or any combination thereof. The morphology metrics may demonstrate amplitude modulation, baseline modulation, and frequency modulation of the PPG signal that is related to respiration. Morphology metric signals generated from the morphology metrics may be used to determine respiration information such as respiration rate.