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:
Dec. 01, 1992
Filed:
Feb. 19, 1991
Patrick T Oong, Ottawa, CA;
Basil Rigas, White Plains, NY (US);
Cornell Research Foundation, Inc., Ithaca, NY (US);
National Research Council of Canada, Ottawa, CA;
Abstract
The presence of anomalies is detected in exfoliated cells (e.g. in a cervical smear) using infrared spectroscopy. A beam of infrared light is directed at specimens containing cells, which may be secretions, exudates, transudates, scrapings, brushings or otherwise obtained populations of exfoliated cells of various organs or tissues, and the anomaly is detected at at least one range of frequencies by determining whether changes in infrared absorption has occurred which is due to functional group vibration in, for example, phosphodiester groups of nucleic acids, COH groups of tissue proteins, carbohydrates, or due to special arrangements of lipid molecules or abnormal lipid structures, present in the specimen.