Systems and method for activating analyte sensor electronics

Patent metadata

Field	Value
Publication number	US-12414715-B2
Application number	US-202318190329-A
Country	US
Kind code	B2
Filing date	Mar 27, 2023
Priority date	May 3, 2018
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

Various analyte sensor systems for controlling activation of analyte sensor electronics circuitry are provided. Related methods for controlling analyte sensor electronics circuitry are also provided. Various analyte sensor systems for monitoring an analyte in a host are also provided. Various circuits for controlling activation of an analyte sensor system are also provided. Analyte sensor systems utilizing a state machine having a plurality of states for collecting a plurality of digital counts and waking a controller responsive to a wake up signal are also provided. Related methods for such analyte sensor systems are also provided. Systems for controlling activation of analyte sensor electronics circuitry utilizing a magnetic sensor are further provided. One or more display device configured to display one or more analyte concentration values are also provided.

First claim

What is claimed is:

1. A system for controlling activation of analyte sensor electronics circuitry, the system comprising:
an analyte sensor configured to measure analyte concentration values;
an outer housing;
at least one of a strain sensor on the outer housing or a force sensor on the outer housing; and
the analyte sensor electronics circuitry configured to:
determine that a pressure signal of the at least one of the strain sensor or the force sensor received upon a pressure applied to the outer housing is indicative of implantation of the analyte sensor into a host, wherein the strain sensor measures a deformation in the outer housing resulting from the pressure applied to the outer housing, and the force sensor measures a force corresponding to the pressure applied to the outer housing;
transition from a lower power state to an operational state based on determining that the pressure signal is indicative of implantation of the analyte sensor into the host; and
upon receiving the pressure signal and transitioning into the operational state, send data related to the analyte concentration values, wherein the pressure signal causes an initiation of a measurement of the analyte concentration values from the analyte sensor and a configuration of a wireless communication between the analyte sensor electronics circuitry and a display device to transmit the data related to the measured analyte concentration values.

2. The system of claim 1 , wherein the at least one of the strain sensor or the force sensor comprises a strain gauge coupled to the outer housing of the system.

3. The system of claim 2 , further comprising a Wheatstone bridge coupled to the strain gauge.

4. The system of claim 1 , wherein the at least one of the strain sensor or the force sensor is configured to detect at least one of a strain or a force applied by an applicator to the outer housing of the system.

5. The system of claim 1 , wherein the at least one of the strain sensor or the force sensor comprises a piezoelectric component that generates a voltage in response to a force applied to the system.

6. The system of claim 1 , wherein the pressure is applied to the outer housing by an applicator gripping the outer housing.

7. A method for controlling analyte sensor electronics circuitry, the method comprising:
the analyte sensor electronics circuitry obtaining a pressure signal generated via at least one of a strain sensor on an outer housing of the analyte sensor electronics circuitry or a force sensor on the outer housing of the analyte sensor electronics circuitry;
determining whether a first condition is met based on the pressure signal obtained by the analyte sensor electronics circuitry, wherein the pressure signal is generated in response to a pressure applied to the outer housing during implantation of an analyte sensor into a host, wherein the strain sensor measures a deformation in the outer housing resulting from the pressure applied to the outer housing, and the force sensor measures a force corresponding to the pressure applied to the outer housing, the analyte sensor configured to measure analyte concentration values;
responsive to the first condition being met, the analyte sensor electronics circuitry transitioning from a lower power state to an operational state; and
upon receiving the pressure signal and transitioning into the operational state, the analyte sensor electronics circuitry sending data related to the analyte concentration values, wherein the pressure signal causes an initiation of a measurement of the analyte concentration values from the analyte sensor and a configuration of a wireless communication between the analyte sensor electronics circuitry and a display device to transmit the data related to the measured analyte concentration values.

8. The method of claim 7 , wherein the at least one of the strain sensor or the force sensor comprises a strain gauge coupled to the outer housing of the analyte sensor electronics circuitry.

9. The method of claim 8 , wherein the pressure signal is generated via a Wheatstone bridge coupled to the strain gauge.

10. The method of claim 7 , wherein determining whether the first condition is met comprises determining that the pressure signal is indicative of implantation of the analyte sensor into the host.

11. The method of claim 10 , wherein the at least one of the strain sensor or the force sensor is configured to detect at least one of a strain or a force applied by an applicator to the outer housing of the analyte sensor electronics circuitry.

12. The method of claim 7 , wherein the at least one of the strain sensor or the force sensor comprises a piezoelectric component that generates a voltage in response to a force applied to the analyte sensor electronics circuitry.

Assignees

• Dexcom Inc

Inventors

• Halac Jason
• Bohm Sebastian
• Crabtree Vincent Peter
• Derenzy David S
• Dervaes Mark S
• Kalfas Nicholas
• Mcdaniel Zebediah L
• Moore Michael Levozier
• Newhouse Todd Andrew
• Ploof Michael A
• Reichert Stephen Alan
• Simpson Peter C
• Teeter Alexander Leroy
• Garcia Rodolfo
• Piotrowiak Jaroslaw
• O'Connell Thomas George
• Doria Arlene G

Classifications

• A61B2560/0252

  using ambient temperature · CPC title

• A61B2560/0223

  of calibration, e.g. protocols for calibrating sensors · CPC title

• A61B5/1495

  Calibrating or testing of in-vivo probes · CPC title

• A61B2562/0223

  Magnetic field sensors · CPC title

• A61B5/6849

  in combination with a needle set · CPC title