Analyte Monitoring Device and Methods of Use

• US 20070203408A1
• Filed: 04/30/2007
• Published: 08/30/2007
• Est. Priority Date: 04/30/1998
• Status: Abandoned Application

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Friedman, Keith, Heller, Ephraim, Heller, Adam, Say, James, Gal, Yoram, Aria, Behrad, Tomasco, Michael, Vreeke, Mark, Colman, Fredric, Plante, Phillip
• Application Number:
  US11/742,546
• Publication Number:
  US 20070203408A1
• Time in Patent Office: Days
• US Class Current: 600/347
• CPC Class Codes: A61B 2560/0252 using ambient temperature
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/14503 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 Class Codes: A61B 5/1451 for interstitial fluid
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/14865 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 5/72 Signal processing specially adapted for physiological signals or for diagnostic purposes character recognition, recognising digital ink, document-oriented image-based pattern recognition G06V30/00; recognition or understanding of postal images G06V30/424
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/7282 Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• CPC Class Codes: A61B 5/7405 using sound
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: A61B 5/7455 characterised by tactile indication, e.g. vibration or electrical stimulation
• CPC Class Codes: A61M 5/1723 : using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: C12Q 1/54 : involving glucose or galactose
• CPC Class Codes: G16H 10/40 : for data related to laboratory analysis, e.g. patient specimen analysis
• CPC Class Codes: G16H 20/17 : delivered via infusion or injection
• CPC Class Codes: H01L 23/3107 : the device being completely enclosed
• CPC Class Codes: H01L 23/49548 : Cross section geometry H01L23/49562 takes precedence
• CPC Class Codes: H01L 2924/00 : Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 : Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 2924/19041 : being a capacitor
• CPC Class Codes: H01L 2924/3011 : Impedance
• CPC Class Codes: Y10S 128/903 : Radio telemetry
• CPC Class Codes: Y10T 29/49 : Method of mechanical manufacture
• CPC Class Codes: Y10T 29/49124 : On flat or curved insulated base, e.g., printed circuit, etc.

Abstract

An analyte monitor includes a sensor, a sensor control unit, and a display unit. The sensor has, for example, a substrate, a recessed channel formed in the substrate, and conductive material disposed in the recessed channel to form a working electrode. The sensor control unit typically has a housing adapted for placement on skin and is adapted to receive a portion of an electrochemical sensor. The sensor control unit also includes two or more conductive contacts disposed on the housing and configured for coupling to two or more contact pads on the sensor. A transmitter is disposed in the housing and coupled to the plurality of conductive contacts for transmitting data obtained using the sensor. The display unit has a receiver for receiving data transmitted by the transmitter of the sensor control unit and a display coupled to the receiver for displaying an indication of a level of an analyte. The analyte monitor may also be part of a drug delivery system to alter the level of the analyte based on the data obtained using the sensor.

Claims

1. A glucose detection system, the system comprising:

a glucose sensor comprising a glucose sensor coil;

a control unit configured to communicate with the sensor and comprising a control unit coil;

wherein a magnetic field between the glucose sensor coil and the control unit coil is configured to induce a current signal in the glucose sensor coil.

2. The system of claim 1 wherein the glucose sensor coil and the control unit coil each include a respective antenna.

3. The system of claim 1 wherein the glucose sensor coil is inductively coupled to the control unit coil.

4. The system of claim 1 wherein the control unit is sealed.

5. The system of claim 4 wherein the control unit is sealed from moisture.

6. The system of claim 1 wherein the glucose sensor is configured to provide one or more sensor related signals to the control unit using the glucose sensor coil and the control unit coil.

7. The system of claim 1 wherein at least a portion of the glucose sensor is transcutaneously positionable under a skin layer of an individual.

8. The system of claim 1 wherein the glucose sensor and the control unit are in signal communication but not connected to each other using electrical contacts.

9. The system of claim 1 wherein the glucose sensor coil is substantially positioned in close proximity to the control unit coil.

10. A method, comprising:

providing a sensor coil on an analyte sensor;

providing a control unit coil on a control unit at a predetermined position relative to the position of the sensor coil to induce an electrical signal on the sensor coil; and

transmitting an analyte related signal from the analyte sensor to the control unit using the sensor coil.

11. The method of claim 10 wherein one or more of the sensor coil and the control unit coil includes an antenna.

12. The method of claim 10 including inductively coupling the sensor coil and the control unit coil.

13. The method of claim 12 including providing a current signal to the analyte sensor via the inductive coupling.

14. The method of claim 10 wherein the electrical signal induced on the sensor coil includes a current signal.

15. The method of claim 14 wherein the analyte sensor and the control unit are separated by a predetermined distance.

16. The method of claim 15 wherein the predetermined distance includes less than approximately 5 cm.

17. A method, comprising:

providing a sensor antenna on an analyte sensor;

providing a control unit antenna on a control unit in close proximity to the position of the sensor antenna to generate a current signal on the sensor antenna; and

transmitting an analyte related signal from the analyte sensor to the control unit using the sensor antenna and the control unit antenna.

18. The method of claim 17 including sealing the control unit substantially entirely.

19. The method of claim 17 wherein the control unit is configured for rf communication.

20. The method of claim 17 including inductively coupling the sensor antenna to the control unit antenna.