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. 04, 2019
Filed:
Dec. 05, 2014
Bioptigen, Inc., Morrisville, NC (US);
Eric L. Buckland, Hickory, NC (US);
Bradley A. Bower, Hillsborough, NC (US);
Ryan Gessner, Carrboro, NC (US);
Bioptigen, Inc., Morrisville, NC (US);
Abstract
Methods of obtaining a measure of blood flow using a Fourier domain optical coherence tomography (FDOCT) system is provided. The method includes obtaining a first optical coherence tomography (OCT) survey scan of a retina of a subject using an OCT scan beam and obtaining a second OCT scan of the retina. The second OCT scan is within an area defined by the obtained first OCT scan and includes a region of retinal blood vessels emerging from and returning to an Optic Nerve Head (ONH) of the retina. An optical phase change is determined from the obtained second OCT scan, the optical phase change being associated with blood flow in a retinal blood vessel in the region of the second OCT scan. An angle of the retinal blood vessel associated with the optical phase change is determined, the angle being measured relative to a direction of transmission of the OCT scan beam. A quantitative measure of vessel blood flow is computed using the optical phase change and the vessel angle relative to the direction of the OCT scan beam.