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:
Aug. 11, 2015
Filed:
Nov. 26, 2013
Google Inc., Mountain View, CA (US);
Zenghe Liu, Alameda, CA (US);
Douglas Weibel, Madison, WI (US);
Google Inc., Mountain View, CA (US);
Abstract
A body-mountable retinal sensing device includes an electrochemical sensor embedded in a polymeric material configured for mounting to a body surface, such as a cornea. The electrochemical sensor includes a working electrode, a reference electrode, and a reagent localized near the working electrode that selectively reacts with retinal. Application of a voltage between the working electrode and the reference electrode causes a current related to a concentration of retinal in a fluid to which the electrochemical sensor is exposed. The current is measured by the body-mountable device and wirelessly communicated.