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:
Feb. 08, 1994

Filed:

Dec. 02, 1991
Applicant:
Inventors:

Manfred Kessler, D-8520 Erlangen, DE;

Klaus Frank, D-8520 Erlangen, DE;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128633 ; 128664 ; 128665 ; 128898 ;
Abstract

The invention relates specifically to a process for the determination of local dye concentrations in animal and human tissues. Light from two different wavelength regions (I, II), one of which (I) has a window for hemoglobin, is irradiated into a subregion of the tissue and the diffuse reflectance (MIO, MIIO) determined. Then, in another step, by means of the diffuse reflectance in the first wavelength region and at least one tissue-type-specific standard basic diffuse reflectance curve obtained in advance for both wavelength regions a tissue-person-specific standard basic diffuse reflectance curve (SIIO) for the second wavelength region (II) is determined, and by means of the determined tissue-person-specific standard basic diffusereflectance curve (SIIO) and the measured diffuse reflectance (MIIO) in the second wavelength region (II) a value for the hemoglobin concentration (KHb1) is obtained.


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Kessler, Manfred. (1994). Process and device for the determination of local dye concentrations and (U.S. Patent No. 5284137). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5284137

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