Advanced continuous analyte monitoring system

Patent metadata

Field	Value
Publication number	US-12303262-B2
Application number	US-202318450855-A
Country	US
Kind code	B2
Filing date	Aug 16, 2023
Priority date	Sep 29, 2010
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

The present invention relates generally to systems and methods for processing, transmitting, and displaying data received from continuous analyte sensor, such as a glucose sensor. In some embodiments, the continuous analyte sensor system comprises a sensor electronics module that includes power saving features. One feature includes a low power measurement circuit that can be switched between a measurement mode and a low power mode, in which charging circuitry continues to apply power to electrodes of a sensor during the low power mode. In addition, the sensor electronics module can be switched between in a low power storage mode higher power operational mode via a switch. The switch can include a reed switch or optical switch, for example. A validation routine can also be implemented to ensure an interrupt signal sent from the switch is valid. The continuous analyte sensor can be physically connected to a sensor electronics module, which is in direct wireless communication with a plurality of different display devices.

First claim

What is claimed is:

1. An analyte sensor system, comprising:
a sensor electronics module;
a continuous analyte sensor configured to generate analyte measurements associated with analyte levels of a user;
a light-sensitive electrical component configured to generate an output signal based on light energy;
a light guide disposed directly over the light-sensitive electrical component and extending through a housing of the analyte sensor system encasing the sensor electronics module to allow the light energy to propagate from outside of the housing onto the light-sensitive electrical component; and
a removable protective shield disposed directly over the light guide and configured to prevent the light energy from propagating from outside the housing of the analyte sensor system onto the light-sensitive electrical component while the sensor electronics module is in a low power mode, wherein:
the light-sensitive electrical component is configured to generate the output signal in response to receiving the light energy after removal of the removable protective shield; and
the sensor electronics module is configured to:
receive, in the low power mode, the output signal from the light-sensitive electrical component after the removal of the removable protective shield;
switch the sensor electronics module from the low power mode to a high power mode based on the output signal received from the light-sensitive electrical component;
receive, in the high power mode, the analyte measurements from the continuous analyte sensor; and
transmit the analyte measurements to a display device for display to the user.

2. The analyte sensor system of claim 1 , wherein the light-sensitive electrical component comprises at least one of a photo-emissive cell, a photo-conductive cell, a photo-voltaic cell, a photo-junction device, or an optical switch.

3. The analyte sensor system of claim 1 , wherein the removable protective shield comprises an opaque, removable adhesive tab.

4. The analyte sensor system of claim 1 , wherein:
the low power mode comprises at least one of a storage mode or a powered off mode; and
the low power mode is configured to maintain one or more electronic components of the sensor electronics module in an off state.

5. The analyte sensor system of claim 1 , wherein:
the high power mode comprises an operation mode; and
the high power mode is configured to provide power to one or more electronic components.

6. The analyte sensor system of claim 1 , further comprising a telemetry module.

7. The analyte sensor system of claim 6 , wherein the sensor electronics module is further configured to:
receive a signal from an external telemetry device via the telemetry module; and
initiate a storage mode responsive to receiving the signal, wherein initiating the storage mode comprises initiating a routine to power down electronic components of the sensor electronics module.

8. The analyte sensor system of claim 1 , wherein the light energy comprises light frequencies from at least one of an infrared spectrum, a visible spectrum, or an ultraviolet light spectrum.

9. A method for wireless communication by an analyte sensor system, comprising:
receiving, at a light-sensitive electrical component of the analyte sensor system, light energy via a light guide disposed directly over the light-sensitive electrical component and extending through a housing of the analyte sensor system, wherein the light energy is received in response to removal of a removable protective shield that is disposed directly over the light guide and configured to prevent the light energy from propagating from outside the housing of the analyte sensor system onto the light-sensitive electrical component;
generating, by the light-sensitive electrical component, an output signal in response to-receiving the light energy;
receiving, by a sensor electronics module of the analyte sensor system while in a low power mode, the output signal from the light-sensitive electrical component;
switching, by the sensor electronics module, the sensor electronics module from the low power mode to a high power mode based on the output signal;
receiving, by the sensor electronics module while in the high power mode, analyte measurements of a user from a continuous analyte sensor of the analyte sensor system; and
transmitting, by the sensor electronics module, the analyte measurements to a display device for display to the user.

10. The method of claim 9 , wherein the light-sensitive electrical component comprises at least one of a photo-emissive cell, a photo-conductive cell, a photo-voltaic cell, a photo-junction device, or an optical switch.

11. The method of claim 9 , wherein:
the low power mode comprises at least one of a storage mode or a powered off mode; and
the low power mode is configured to maintain one or more electronic components of the sensor electronics module in an off state.

12. The method of claim 9 , wherein:
the high power mode comprises an operation mode; and
the high power mode is configured to provide power to one or more electronic components.

13. The method of claim 9 , wherein the light energy comprises light frequencies from at least one of an infrared spectrum, a visible spectrum, or an ultraviolet light spectrum.

14. The method of claim 9 , further comprising:
receiving a signal from an external telemetry device via a telemetry module; and
initiating a storage mode responsive to receiving the signal, wherein initiating the storage mode comprises initiating a routine to power down electronic components of the sensor electronics module.

15. An analyte monitoring system, comprising:
a display device; and
an analyte sensor system, comprising:
a sensor electronics module;
a continuous analyte sensor configured to generate measurements associated with analyte levels of user;
analyte a light-sensitive electrical component configured to generate an output signal based on light energy;
a light guide disposed directly over the light-sensitive electrical component and extending through a housing of the analyte sensor system to allow the light energy to propagate from outside of the housing onto the light-sensitive electrical component; and
a removable protective shield disposed directly over the light guide and configured to prevent the light energy from propagating from outside the housing of the analyte sensor system onto the light-sensitive electrical component while the sensor electronics module is in a low power mode, wherein:
the light-sensitive electrical component is configured to generate the output signal in response to receiving the light energy after removal of the removable protective shield;
the sensor electronics module is configured to:
receive, in the low power mode, the output signal from the light-sensitive electrical component after the removal of the removable protective shield;
switch the sensor electronics module from the low power mode to a high power mode based on the output signal received from the light-sensitive electrical component;
receive, in the high power mode, the analyte measurements from the continuous analyte sensor; and
transmit the analyte measurements to the display device for display to the user; and

the display device is configured to:
receive the analyte measurements from the sensor electronics module of the analyte sensor system; and
display the analyte measurements to the user.

16. The analyte sensor system of claim 15 , wherein the light-sensitive electrical component comprises at least one of a photo-emissive cell, a photo-conductive

Assignees

• Dexcom Inc

Inventors

• Bohm Sebastian
• Dervaes Mark
• Johnson Eric
• Kamath Apurv Ullas
• Larvenz Shawn
• Leach Jacob S
• Lieu Phong
• Mahalingam Aarthi
• Miller Tom
• Neale Paul V
• Pryor Jack
• Peyser Thomas A
• Rong Daiting
• San Vicente Kenneth
• Shariati Mohammad Ali
• Simpson Peter C
• Wightlin Matthew

Classifications

• A61B5/0002

  Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network (endoradiosondes A61B5/07) · CPC title

• A61B5/14503

  invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors (A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence) · CPC title

• G06F1/3287

  by switching off individual functional units in the computer system · CPC title

• G08C17/02

  using a radio link · CPC title

• A61B5/14865

  invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors · CPC title