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:
Jun. 06, 1995
Filed:
Mar. 29, 1994
Applicant:
Inventors:
Rebecca Richards-Kortum, Austin, TX (US);
Lucene Tong, Boston, MA (US);
Michael S Feld, Newton, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128665 ;
Abstract
The present invention relates to a method and apparatus for diagnosing the condition of gastrointestinal tissue. The method and apparatus excite fluorophores within a portion of gastrointestinal tissue with a laser to cause the fluorophores to emit fluorescent radiation. The presence of abnormal tissue is then determined by detecting the radiation emitted by the excited fluorophores and comparing the emitted radiation to a reference emission for fluorophores within normal tissue at predetermined wavelengths.