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. 10, 2007
Filed:
Nov. 12, 2004
Applicants:
Quan Liu, Madison, WI (US);
Nirmala Ramanujam, Madison, WI (US);
Changfang Zhu, Madison, WI (US);
Inventors:
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/64 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fluorescence instrument illuminates the surface of tissue with light of a selected wavelength and light emanating from the tissue due to fluorescence is collected. The angle of illumination of tissue surface and/or collection of fluorescence is changed to probe at various depths beneath the surface of the tissue for a fluorescence layer. Three embodiments of the instrument are described.