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. 21, 2022
Filed:
Nov. 22, 2019
Edwards Lifesciences Corporation, Irvine, CA (US);
Paul B. Benni, Acton, MA (US);
Edwards Lifesciences Corporation, Irvine, CA (US);
Abstract
A method and apparatus for non-invasively determining a blood oxygen saturation level within tissue of an internal organ is provided. The method includes: applying a near infrared spectrophotometric sensor on an external surface of an organ; operating the sensor to emit light from a light source directly into the tissue of the organ at a first tissue location, and to sense the emitted light at a second tissue location, which emitted light has traveled through the tissue between the first and second tissue locations, and to produce signals representative of the intensity of the sensed emitted light; using a processor to execute instructions, which instructions cause the processor to: determine an attenuation value of the emitted light for each wavelength, and determine a blood oxygen saturation level of the organ tissue using the determined attenuation values for each of the plurality of wavelengths.