US 11,701,038 B2
Assessement of performance of an implanted sensor
Ravi Rastogi, Columbia, MD (US); James Masciotti, Germantown, MD (US); and Xiaoxiao Chen, Washington, DC (US)
Assigned to Senseonics, Incorporated, Germantown, MD (US)
Filed by Senseonics, Incorporated, Germantown, MD (US)
Filed on Dec. 10, 2019, as Appl. No. 16/709,225.
Claims priority of provisional application 62/777,591, filed on Dec. 10, 2018.
Prior Publication US 2020/0178856 A1, Jun. 11, 2020
Int. Cl. A61B 5/145 (2006.01); A61B 5/1495 (2006.01); A61B 5/07 (2006.01)
CPC A61B 5/1495 (2013.01) [A61B 5/076 (2013.01); A61B 5/14503 (2013.01); A61B 5/14532 (2013.01); A61B 2560/0271 (2013.01); A61B 2560/0276 (2013.01)] 37 Claims
OG exemplary drawing
 
1. An analyte monitoring system comprising:
an analyte sensor including an indicator that exhibits one or more detectable properties based on an amount or concentration of an analyte in a first medium in proximity to the indicator; and
a transceiver configured to (i) receive one or more sensor measurements from the analyte sensor, (ii) assess a performance of the analyte sensor based on at least one or more of the received one or more sensor measurements, (iii) determine whether the performance of the analyte sensor is deficient based at least on the assessed performance of the analyte sensor, and (iv) if the performance of the analyte sensor is determined to be deficient, display a sensor retirement indication;
wherein assessing the performance of the analyte sensor comprises calculating two or more metrics selected from a group including a spike metric, a reference channel instability metric, a diagnostic drift metric, and a reference channel decrease metric and calculating a minimum value of the calculated two or more metrics;
wherein the assessed performance of the analyte sensor is based on the calculated minimum value of the calculated two or more metrics; and
wherein determining whether the performance of the analyte sensor is deficient based at least on the assessed performance of the analyte sensor comprises comparing the assessed performance to a deficiency threshold.