US 11,850,045 B2
Systems and methods relating to an analyte sensor system having a battery located within a disposable base
Neel Narayan Shah, Carlsbad, CA (US); Neal Davis Johnston, Dallas, TX (US); Matthew Bettman, Redwood City, CA (US); Eric Gobrecht, Madison, WI (US); and Ryan Marc Braunstein, San Carlos, CA (US)
Assigned to DexCom, Inc., San Diego, CA (US)
Filed by DexCom, Inc., San Diego, CA (US)
Filed on May 3, 2019, as Appl. No. 16/403,357.
Application 16/403,357 is a continuation of application No. 16/403,037, filed on May 3, 2019.
Claims priority of provisional application 62/667,348, filed on May 4, 2018.
Prior Publication US 2019/0336055 A1, Nov. 7, 2019
Int. Cl. A61B 5/00 (2006.01); A61B 5/145 (2006.01); H04W 52/02 (2009.01); H04W 12/06 (2021.01); H01M 50/543 (2021.01); A61B 5/1486 (2006.01); A61B 5/1495 (2006.01)
CPC A61B 5/145 (2013.01) [A61B 5/0002 (2013.01); A61B 5/0004 (2013.01); A61B 5/0015 (2013.01); A61B 5/681 (2013.01); A61B 5/6801 (2013.01); A61B 5/683 (2013.01); A61B 5/6831 (2013.01); H01M 50/543 (2021.01); H04W 12/06 (2013.01); H04W 52/02 (2013.01); H04W 52/0232 (2013.01); A61B 5/0022 (2013.01); A61B 5/0031 (2013.01); A61B 5/1486 (2013.01); A61B 5/1495 (2013.01); A61B 5/14532 (2013.01); A61B 5/14546 (2013.01); A61B 5/6833 (2013.01); A61B 2560/0209 (2013.01); A61B 2560/0214 (2013.01); A61B 2560/0223 (2013.01); A61B 2560/0443 (2013.01); H01M 2220/30 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An analyte sensor system, comprising:
a base configured to attach to a skin of a host and having a base outer perimeter, the base comprising:
an analyte sensor configured to generate a sensor signal indicative of an analyte concentration level of the host,
a battery,
a first plurality of contacts, and
a circular aperture at a center of the base and spaced from the base outer perimeter; and
a sensor electronics module configured to releasably couple to the base and including an outer perimeter that complements a shape of the base outer perimeter, the sensor electronics module comprising:
a circular raised portion at a center of the sensor electronics module and spaced from the outer perimeter of the sensor electronics module, the circular raised portion configured to fit within the circular aperture during coupling of the sensor electronics module to the base,
a second plurality of contacts comprising concentric circular contacts centered about the circular raised portion, each of the second plurality of contacts configured to make electrical contact with a respective one of the first plurality of contacts when the sensor electronics module is secured to the base in any of a plurality of radial orientations, and
a wireless transceiver configured to transmit a wireless signal based at least in part on the sensor signal; and
wherein the base outer perimeter comprises a raised perimeter having a circular shape and configured to mechanically guide the sensor electronics module into position on the base during coupling of the sensor electronics module to the base.