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:
Apr. 22, 2014
Filed:
May. 02, 2006
Kurt R. Denninghoff, Tucson, AZ (US);
Sharon Hillman, Hampton Cove, AL (US);
Kurt R. Denninghoff, Tucson, AZ (US);
Lloyd W. Hillman, Hampton Cove, AL (US);
UAB Research Foundation, Birmingham, AL (US);
The University of Alabama in Huntsville, Huntsville, AL (US);
Abstract
A method and device for accurately determining oxygen saturation of hemoglobin by the measurement of the optical density of a sample, such as a blood vessel, in response to illumination by light having at least three wavelengths (λ, . . . ) within a range of about 460 nm to about 523 nm. The hematocrit of a sample may be determined from optical density measurements at the three or more wavelengths in conjunction with a known path length. The device may be an intravenous or intra-arterial fiber optic catheter used to deliver the interrogating light signal to the blood and to detect the reflected signal. A method and device of determining the thickness of the retinal well using spectroscopic information are also disclosed.