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:
Jun. 19, 2018
Filed:
Oct. 17, 2013
Applicant:
Verily Life Sciences Llc, Mountain View, CA (US);
Inventors:
Huanfen Yao, Sunnyvale, CA (US);
Zenghe Liu, Alameda, CA (US);
Assignee:
Verily Life Sciences LLC, Mountain View, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/05 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01); A61B 5/1486 (2006.01); A61B 5/1477 (2006.01);
U.S. Cl.
CPC ...
A61B 5/6821 (2013.01); A61B 5/0004 (2013.01); A61B 5/1477 (2013.01); A61B 5/1486 (2013.01); A61B 5/14507 (2013.01); A61B 5/14546 (2013.01); A61B 5/6803 (2013.01);
Abstract
A body-mountable urea sensing device includes an electrochemical sensor embedded in a polymeric material configured for mounting to a surface of an eye. The electrochemical sensor includes a working electrode, a reference electrode, and a reagent localized near the working electrode that selectively reacts with urea. A potentiometric voltage between the working electrode and the reference electrode is related to a concentration of urea in a fluid to which the electrochemical sensor is exposed; the voltage is measured by the body-mountable device and wirelessly communicated.