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. 08, 1997
Filed:
May. 23, 1995
Leonard F Scinto, Cambridge, MA (US);
Kirk R Daffner, Newton, MA (US);
Beth Israel Hospitcal Assoc. Inc., Boston, MA (US);
Abstract
The present invention provides a non-invasive method for diagnosing Alzheimer's disease in a living human subject. The diagnostic method employs a non-invasive automated apparatus which can repetitively measure pupil constriction velocity for a pre-chosen duration both before and after stimulation by visible light; and cumulatively record such measured pupil constriction velocity data as is obtained over time. The method also administers at least one neural transmitter mediator to a targeted eye of the living subject in an amount insufficient to cause marked changes in pupillary dynamic response in a person who is not afflicted with Alzheimer's disease. The marked hypersensitivity of an Alzheimer's dementia patient to the administered neural transmitter mediator causes a marked change in pupil constriction velocity and thus serves as the means diagnostically to determine and identify an individual living human subject as being afflicted with Alzheimer's disease.