Systems and method for activating analyte sensor electronics

Patent metadata

Field	Value
Publication number	US-12201417-B2
Application number	US-202217653765-A
Country	US
Kind code	B2
Filing date	Mar 7, 2022
Priority date	May 3, 2018
Publication date	Jan 21, 2025
Grant date	Jan 21, 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 applicator comprising at least an applicator body, wherein a magnet is disposed in the applicator body proximate a magnetic sensor;
an analyte sensor;
the magnetic sensor configured to trigger a signal responsive to detecting a change in proximity of the magnet caused by the magnet being moved a predetermined distance relative to the magnetic sensor, and detecting a change in a spatial orientation of the magnetic sensor relative to the magnet, wherein the change in the spatial orientation changes an alignment of a magnetic field of the magnet with respect to the magnetic sensor; and
the analyte sensor electronics circuitry configured to:
transition into an operational state responsive to the signal indicating that the analyte sensor electronics circuitry has been deployed from the applicator body; and
upon transitioning into the operational state, receive an indication of one or more analyte concentration values from the analyte sensor.

2. The system of claim 1 , wherein detecting the change in proximity is based on detecting a decrease in magnitude of the magnetic field.

3. The system of claim 2 , wherein detecting the decrease in the magnitude of the magnetic field is based on the magnetic sensor changing from a first state to a second state in response to the magnet being moved away from the magnetic sensor.

4. The system of claim 1 , wherein detecting the change in proximity is based on detecting an increase in magnitude of the magnetic field.

5. The system of claim 4 , wherein detecting the increase in the magnitude of the magnetic field is based on the magnetic sensor changing from a first state to a second state in response to the magnet being moved closer to the magnetic sensor.

6. The system of claim 1 , wherein the analyte sensor electronics circuitry is configured to determine that the signal is indicative of implantation of the analyte sensor into a host.

7. The system of claim 1 , wherein the analyte sensor electronics circuitry and the analyte sensor are pre-connected within a shared outer housing.

8. The system of claim 1 , wherein the analyte sensor electronics circuitry is further configured to, after transitioning into the operational state, transmit data indicating the one or more analyte concentration values to a display device.

9. A method for controlling activation of analyte sensor electronics circuitry, the method comprising:
detecting a change in proximity between a magnet and a magnetic sensor caused by the magnet being moved a predetermined distance relative to the magnetic sensor, the analyte sensor electronics circuitry being electrically coupled to the magnetic sensor, and the magnet being disposed proximate the magnetic sensor in an applicator body of an applicator;
detecting a change in a spatial orientation of the magnetic sensor relative to the magnet, wherein the change in the spatial orientation changes an alignment of a magnetic field of the magnet with respect to the magnetic sensor; and
responsive to detecting the change in proximity and the change in the spatial orientation indicating that the analyte sensor electronics circuitry has been deployed from the applicator body, generating a signal operable to cause the analyte sensor electronics circuitry to transition into an operational state.

10. The method of claim 9 , wherein detecting the change in proximity is based on detecting a decrease in magnitude of the magnetic field.

11. The method of claim 10 , wherein detecting the decrease in the magnitude of the magnetic field is based on the magnetic sensor changing from a first state to a second state in response to the magnet being moved away from the magnetic sensor.

12. The method of claim 9 , wherein detecting the change in proximity is based on detecting an increase in magnitude of the magnetic field.

13. The method of claim 12 , wherein detecting the increase in the magnitude of the magnetic field is based on the magnetic sensor changing from a first state to a second state in response to the magnet being moved closer to the magnetic sensor.

14. The method of claim 9 , wherein the signal is indicative of implantation of an analyte sensor into a host.

15. The method of claim 9 , further comprising:
upon transitioning into the operational state, receiving, by the analyte sensor electronics circuitry, an indication of one or more analyte concentration values from an analyte sensor; and
after transitioning into the operational state, transmitting, by the analyte sensor electronics circuitry, data indicating the one or more analyte concentration values to a display device.

16. One or more non-transitory computer-readable storage media having instructions stored thereon that are executable by one or more processors to perform operations for controlling activation of analyte sensor electronics circuitry, the operations comprising:
detecting a change in proximity between a magnet and a magnetic sensor caused by the magnet being moved a predetermined distance relative to the magnetic sensor, the analyte sensor electronics circuitry being electrically coupled to the magnetic sensor, and the magnet being disposed proximate the magnetic sensor in an applicator body of an applicator;
detecting a change in a spatial orientation of the magnetic sensor relative to the magnet, wherein the change in the spatial orientation changes an alignment of a magnetic field of the magnet with respect to the magnetic sensor; and
responsive to detecting the change in proximity and the change in the spatial orientation indicating that the analyte sensor electronics circuitry has been deployed from the applicator body, generating a signal operable to cause the analyte sensor electronics circuitry to transition into an operational state.

17. The one or more non-transitory computer-readable storage media of claim 16 , wherein the signal is indicative of implantation of an analyte sensor into a host.

18. The one or more non-transitory computer-readable storage media of claim 16 , the operations further comprising:
upon transitioning into the operational state, receiving, by the analyte sensor electronics circuitry, an indication of one or more analyte concentration values from an analyte sensor; and
after transitioning into the operational state, transmitting, by the analyte sensor electronics circuitry, data indicating the one or more analyte concentration values to a display device.

Assignees

• Dexcom Inc

Inventors

• Halac Jason
• Bohm Sebastian
• Crabtree Vincent Peter
• Derenzy David
• 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