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:
Sep. 15, 1992
Filed:
Jun. 14, 1991
Applicant:
Inventors:
Charles A Czeisler, Cambridge, MA (US);
Heinz Martens, Jamacia Plain, MA (US);
Theresa L Shanahan, Madison, WI (US);
Assignee:
Brigham and Women's Hospital, Boston, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128745 ; 600 27 ; 351222 ; 351246 ;
Abstract
A method of determining the functional integrity of the visual system (including the photoreceptive elements, the retino-hypothalamic tracts and their connections to the suprachiasmatic nuclei of the hypothalamus) of visually imparied human beings. The method includes measuring the melatonin content in blood samples taken before, during and after application of a stimulus (e.g. light) to the subject's retinas, and comparing the measured melatonin content to determine if the melatonin content was suppressed during application of the stimulus.