Medical Devices and Methods

Patent metadata

Field	Value
Publication number	US-2016015267-A1
Application number	US-201514841224-A
Country	US
Kind code	A1
Filing date	Aug 31, 2015
Priority date	Aug 31, 2009
Publication date	Jan 21, 2016
Grant date	—

Abstract

Methods and devices to monitor an analyte in body fluid are provided. Embodiments include continuous or discrete acquisition of analyte related data from a transcutaneously positioned in vivo analyte sensor automatically or upon request from a user.

First claim

What is claimed is:

1 . An apparatus, comprising:
an analyte sensor having a portion in fluid contact with bodily fluid under a skin surface and configured to generate signals corresponding to monitored analyte level in the bodily fluid, wherein the analyte sensor does not require user initiated calibration during the entire period of the analyte sensor usage life; a power supply; and sensor electronics operatively coupled to the analyte sensor and the power supply, the sensor electronics configured to receive the signals generated by the analyte sensor and to generate one or more data packets including the received signals from the analyte sensor;
wherein the sensor electronics is configured to alternate drawing power from the power supply and from radio frequency (RF) power of a remote device positioned within a predetermined distance from the sensor electronics.

2 . The apparatus of claim 1 , wherein the sensor electronics is configured to disable a connection to the power supply when a predetermined level of RF power is detected.

3 . The apparatus of claim 2 , wherein the sensor electronics is powered by the RF power from the remote device to generate the one or more data packets.

4 . The apparatus of claim 2 , further including a switch connecting the power supply to the sensor electronics, wherein the switch is open when the predetermined level of RF power is detected such that the connection between the power supply and the sensor electronics is disabled.

5 . The apparatus of claim 4 , wherein the switch is closed when the predetermined level of RF power is no longer detected by the sensor electronics such that the sensor electronics is electrically connected to the power supply.

6 . The apparatus of claim 1 , further including a rechargeable power source operatively coupled to the sensor electronics, wherein when the remote device is positioned with a predetermined distance from the sensor electronics, the RF power from the remote device charges the rechargeable power source.

7 . The apparatus of claim 1 , wherein the bodily fluid includes one of dermal fluid or interstitial fluid.

8 . The apparatus of claim 1 , wherein the analyte sensor includes a plurality of electrodes including a working electrode comprising an analyte-responsive enzyme bonded to a polymer disposed on the working electrode.

9 . The apparatus of claim 8 , wherein the analyte-responsive enzyme is chemically bonded to the polymer disposed on the working electrode.

10 . The apparatus of claim 8 , wherein the working electrode comprises a mediator bonded to the polymer disposed on the working electrode.

11 . The apparatus of claim 10 , wherein the mediator is crosslinked with the polymer disposed on the working electrode.

12 . The apparatus of claim 1 , wherein the analyte sensor includes a plurality of electrodes including a working electrode comprising a mediator bonded to a polymer disposed on the working electrode.

13 . The apparatus of claim 1 , wherein the entire period of the analyte sensor usage life corresponds to the time period of monitoring the analyte level in the bodily fluid, and starts when the sensor electronics is activated, and ends when the sensor electronics is deactivated.

14 . The apparatus of claim 13 , wherein the sensor electronics is deactivated when no additional signals from the analyte sensor is processed by the sensor electronics.

15 . The apparatus of claim 1 , further including a data storage unit for storing an identification information and analyte sensor calibration information.

16 . The apparatus of claim 15 , wherein the sensor electronics is operatively coupled to the data storage unit, and the generated one or more data packets include the identification information and the analyte sensor calibration information.

Assignees

• Abbott Diabetes Care Inc

Inventors

• Bernstein Daniel Milfred
• Fennell Martin J
• Sloan Mark Kent
• Love Michael
• He Lei
• Thomas Christopher Allen
• Hoss Udo
• Feldman Benjamin Jay
• Doniger Kenneth J
• Stafford Gary Ashley
• Hayter Gary Alan
• Yee Phillip
• Kiaie Namvar
• Cole Jean-Pierre
• Dinh Hung
• Taub Marc Barry
• Pace Louis George
• Sicurello Jeffery Mario

Classifications

• A61B2560/0238

  Means for recording calibration data · CPC title

• G06Q50/22

  Social work or social welfare, e.g. community support activities or counselling services · CPC title

• A61B5/14532

  for measuring glucose, e.g. by tissue impedance measurement · CPC title

• A61B5/0022

  Monitoring a patient using a global network, e.g. telephone networks, internet · CPC title

• G16H40/63

  for local operation · CPC title