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:
Jul. 13, 2010
Filed:
Mar. 31, 2005
Martin Hammer, Jena, DE;
Walthard Vilser, Rudolstadt, DE;
Martin Hammer, Jena, DE;
Walthard Vilser, Rudolstadt, DE;
IMEDOS GmbH, Jena, DE;
Abstract
It is the object of a method for measuring the vessel diameter of optically accessible blood vessels to measure vessel diameters of optically accessible blood vessels in a simple manner based on digital images and with high accuracy even when the vessel diameter is on an order of magnitude at which the determination of the diameter by image point counting is associated with an unacceptably high error. According to the invention, the vessel diameter is determined photometrically from the logarithmized ratio of the intensities of the reflection of the vessel-free environment of the blood vessel and of the reflection of the blood vessel, which intensities are determined in a first monochromatic image.