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:
Nov. 25, 2014
Filed:
Sep. 08, 2011
Paul B. Benni, Acton, MA (US);
Suzanne M. Carroll, Norwich, CT (US);
Paul B. Benni, Acton, MA (US);
Suzanne M. Carroll, Norwich, CT (US);
CAS Medical Systems, Inc., Branford, CT (US);
Abstract
A method and apparatus for determining a venous oxygen saturation value (SvO2) of a subject is provided. The method includes the steps of: a) sensing a plurality of tissue regions on a subject using a NIRS oximeter adapted to determine a tissue oxygen saturation value (StO2) for each region, each region independent of the other regions and each region sensed using a NIRS oximeter sensor specific to that region, and determining a StO2 value for that region; b) assigning a coefficient to each region, each of which coefficients reflects a portion of the StO2 value for the region attributable to a composite venous blood return representative of the tissue regions measured; and c) determining a composite SvO2 value for the subject using the StO2 region values and the respective coefficients.