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.

Date of Patent:
Oct. 13, 2020

Filed:

Jul. 29, 2016
Applicant:

Topcon Corporation, Itabashi-ku, Tokyo, JP;

Inventors:

Shunsuke Nakamura, Tokyo, JP;

Jun Sakai, Kuki, JP;

Assignee:

TOPCON CORPORATION, Itabashi-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 3/12 (2006.01); A61B 3/10 (2006.01); A61B 5/00 (2006.01); A61B 5/026 (2006.01); G06T 7/73 (2017.01); A61B 3/00 (2006.01); A61B 3/14 (2006.01); A61B 5/0285 (2006.01);
U.S. Cl.
CPC ...
A61B 3/1233 (2013.01); A61B 3/0025 (2013.01); A61B 3/10 (2013.01); A61B 3/102 (2013.01); A61B 3/12 (2013.01); A61B 3/1241 (2013.01); A61B 3/14 (2013.01); A61B 5/0066 (2013.01); A61B 5/0261 (2013.01); G06T 7/74 (2017.01); A61B 5/0285 (2013.01); G06T 2207/10101 (2013.01); G06T 2207/30041 (2013.01); G06T 2207/30104 (2013.01);
Abstract

An embodiment is a blood flow measurement device that generates blood flow information based on data collected by repeatedly scanning an interested cross section intersecting a blood vessel of an eye fundus using OCT. A data collector scans four or more cross sections intersecting the blood vessel. A first calculator determines a first gradient and second gradient of the blood vessel by analyzing a first data group and second data group among four or more pieces of data corresponding to the four or more cross sections collected by the data collector. A second calculator determines a gradient of the blood vessel at the interested cross section based on the first gradient and the second gradient. A blood flow information generator generates the blood flow information based on the gradient determined by the second calculator and the data collected by repeatedly scanning the interested cross section.


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