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. 28, 1992
Filed:
Aug. 28, 1990
Applicant:
Inventor:
Dan Atlas, Hod Hasharon, IL;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128666 ; 128671 ; 128721 ; 128782 ; 25022721 ; 356373 ;
Abstract
A device for detecting displacement of an object, particularly a chest belt for detecting respiration, includes an optical fibre having a light source at one end and a light-emitting face at the opposite end, a reflector device adjacent to and partially overlapping the light-emitting face of the optical fibre and movable with respect thereto to increase or decrease the amount of overlapping, a coupling for coupling the reflecting device to the object whose displacement is being detected, and a light sensor for sensing the amount of light reflected by the reflector back to the light-emitting face of the optical fibre and for outputting an electrical signal corresponding thereto.