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. 14, 1999
Filed:
May. 06, 1998
Myron J Block, Jupiter Island, FL (US);
Optix LP, Jupiter Island, FL (US);
Abstract
The invention provides non-invasive methods and apparati for measurement of the concentration of a selected constituent of a subject's blood. The invention cools a segment of the subject's tympanic membrane and employs the thermal radiation that the subject's inner ear emits and is transmitted through this cold segment to directly obtain absorption information related to the concentration of various constituents of blood flowing through the membrane. In particular the invention utilizes optical devices inserted into the external ear cavity to direct a portion of the transmitted radiation onto an infrared detection and analysis device. The signal from the detection device is analyzed to obtain the concentration of the constituent of interest. The invention can employ both traditional spectrophotometric techniques and also non-spectrophotometric techniques to derive the concentration of a particular constituent.