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.

Date of Patent:
May. 24, 2016

Filed:

Mar. 29, 2013
Applicant:

Senseonics, Incorporated, Germantown, MD (US);

Inventors:

Arthur E. Colvin, Jr., Mt. Airy, MD (US);

Xiaolin Wang, Germantown, MD (US);

Colleen Mdingi, Germantown, MD (US);

Andrew DeHennis, Germantown, MD (US);

Assignee:

Senseonics, Incorporated, Germantown, MD (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/1455 (2006.01); A61B 5/145 (2006.01); A61B 5/00 (2006.01); A61B 5/1459 (2006.01);
U.S. Cl.
CPC ...
A61B 5/14532 (2013.01); A61B 5/1459 (2013.01); A61B 5/14556 (2013.01); A61B 5/7203 (2013.01);
Abstract

Methods, sensors, and systems for determining a concentration of glucose in a medium of a living animal are disclosed. Determining the glucose concentration may involve emitting excitation light from a light source to indicator molecules, generating a raw signal indicative of the amount of light received by a photodetector, purifying and normalizing the raw signal, and converting the normalized signal to a glucose concentration. The purification may involve removing noise (e.g., offset and/or distortion) from the raw signal. The purification and normalization may involve tracking the cumulative emission time that the light source has emitted the excitation light and tracking the implant time that has elapsed since the optical sensor was implanted. The purification and normalization may involve measuring the temperature of the sensor. The purification, normalization, and conversion may involve using parameters determined during manufacturing, in vitro testing, and/or in vivo testing.


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