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:
Jan. 09, 2018
Filed:
Feb. 19, 2015
Covidien Lp, Mansfield, MA (US);
James Ochs, Palo Alto, CA (US);
Other;
Abstract
Methods and systems are presented for determining regional blood oxygen saturation (rSO) of a subject. Differential absorption values may be determined based on received first and second light signals corresponding to light attenuated by respective first and second regions of the subject. Reference absorption curves are received, each associated with an rSOvalue and containing expected absorption values. The differential absorption values are compared with the expected absorption values to determine a best fit reference absorption curve. An rSOvalue is determined based on the best fit reference absorption curve. An rSOvalue may also be determined based on a combination of two or more rSOestimates. The rSOestimates are determined based on two or more pairs of the differential absorption values. The differential absorption values are determined based on received first and second lights signals corresponding to three or more wavelengths of light.