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:
Dec. 01, 2020
Filed:
Apr. 24, 2020
Covidien Lp, Mansfield, MA (US);
Christopher J. Meehan, Denver, CO (US);
Covidien LP, Mansfield, MA (US);
Abstract
A device for measuring oxygen saturation includes circuitry configured to measure a first diode voltage at a light emitting diode while applying a first current through the light emitting diode, measure a second diode voltage at the light emitting diode while applying a second current through the light emitting diode, and measure a third diode voltage at a light emitting diode while applying a third current through the light emitting diode. The circuitry is further configured to determine a series resistance based on the first diode voltage, the second diode voltage, and the third diode voltage and determine an intensity of a received photonic signal corresponding to an output photonic signal output using the light emitting diode. The circuitry is further configured to determine an oxygen saturation level based on the intensity of the received photonic signal and the series resistance.