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. 25, 1995
Filed:
Mar. 29, 1991
Applicant:
Inventors:
Walter S Friauf, Bethesda, MD (US);
Paul D Smith, Annapolis, MD (US);
John W Cole, Rockville, MD (US);
Joseph F Fessler, Walkersville, MD (US);
Roger E Solomon, Manassas, VA (US);
Eric F Bernstein, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128633 ; 128634 ; 128665 ;
Abstract
A method of optimizing photodynamic therapy in which retained concentrations of photosensitizers administered are measured on a real time basis by percutaneous measurements of fluorescence. A light weight hand held fluorometer is used to percutaneously measure fluorescence emitted by photosensitizers in a tissue situs that is subject to photodynamic therapy. The use of real time determinations of the concentration of photosensitizers allow optimization of illumination intensity and duration.