Auto-calibration label and method of forming the same

• US 7,875,240 B2
• Filed: 04/18/2006
• Issued: 01/25/2011
• Est. Priority Date: 04/19/2005
• Status: Active Grant

• Current Assignee: Ascensia Diabetes Care Holdings AG (PHC Holdings Corporation)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Edelbrock, Andrew J., Perry, Joseph E., Charlton, Steven C., Micinski, Russell J.
• Primary Examiner(s): Nagpaul; Jyoti
• Application Number:
  US11/918,830
• Publication Number:
  US 20090041625A1
• Time in Patent Office: 1,743 Days
• Field of Search: 422 99-100, 422 62- 65, 436/180
• US Class Current: 422/64
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: G01N 33/48771 Coding of information, e.g. calibration data, lot number
• CPC Class Codes: Y10T 436/2575 Volumetric liquid transfer

Abstract

An auto-calibration circuit or label (20) being adapted to be used with different first and second instruments. The first instrument being different from the second instrument. The auto-calibration label comprising first and second plurality of electrical connections. The first electrical connections conveys first instrument encoded-calibration information (82) corresponding to a sensor. The first instrument information is adapted to be utilized by the first instrument to auto-calibrate for the first sensor. The first plurality of electrical connections includes contact areas. The second electrical connections conveys second encoded-calibration information (84) corresponding to the first sensor. The second information is adapted to be utilized by the second instrument to auto-calibrate for the sensor. The second electrical connections includes a second plurality of contact areas, which are distinct from the first contact areas. The first electrical connections is adapted to be routed directly from each of the first contact areas to a first (52) or second common (54) connection. The second electrical connections is adapted to be routed directly from each of the second contact areas to the first or second common connection.

Claims

1. A method of forming an auto-calibration circuit or label adapted to be used with a first instrument and a second instrument, the first instrument being different from the second instrument and adapted to determine an analyte concentration of a fluid sample, the method comprising the acts of:

supplying a first conductive ink pattern layer;

supplying a second conductive ink pattern layer including a first plurality of contact areas and a second plurality of contact areas; and

supplying insulating material being located between the first and second conductive ink pattern layers,

wherein the first conductive ink pattern layer and the first plurality of contact areas define first encoded-calibration information and the first conductive ink pattern layer and the second plurality of contact areas define second encoded-calibration information, the first encoded-calibration information being distinct from the second encoded-calibration information, the first encoded-calibration information is operable with the first instrument to auto-calibrate, the second encoded-calibration information is operable with the second instrument to auto-calibrate, wherein the first and second plurality of contact areas are located only on the second conductive ink pattern layer and the first conductive ink pattern layer is formed in the absence of contact areas.

2. The method of claim 1, wherein the first plurality of contact areas is distinct from the second plurality of contact areas.

3. The method of claim 1, wherein the second conductive ink pattern layer is in a linear array.

4. The method of claim 1, wherein the second conductive ink pattern layer is in a generally radially-extending pattern.

5. The method of claim 1, wherein the first conductive ink pattern layer includes an inner ring and an outer ring.

6. The method of claim 1, wherein at least one of the inner ring and the outer ring is continuous.

7. The method of claim 1, wherein the first encoded-calibration information and the second encoded-calibration information are implemented by a digital technique to respective first and second instruments.

8. The method of claim 1, wherein the first encoded-calibration information and the second encoded-calibration information are implemented by a analog technique to respective first and second instruments.

9. The method of claim 1, wherein supplying the first conductive ink pattern layer includes printing the first conductive ink pattern layer, wherein supplying the second conductive ink pattern layer includes printing the second conductive ink pattern layer, wherein supplying the insulating material includes printing the insulating material.

10. The method of claim 1, wherein the insulating material is a plurality of insulating areas.

11. An auto-calibration circuit or label being adapted to be used with a first instrument and a second instrument, the first instrument being different from the second instrument, the first and second instruments being adapted to determine an analyte concentration of a fluid sample, the auto-calibration label comprising:

a first plurality of electrical connections conveying first instrument encoded-calibration information corresponding to a first sensor, the first instrument encoded-calibration information is operable with the first instrument to auto-calibrate for the first sensor, the first plurality of electrical connections including a first plurality of contact areas; and

a second plurality of electrical connections conveying second encoded-calibration information corresponding to the first sensor, the second encoded-calibration information is operable with the second instrument to auto-calibrate for the first sensor, the second plurality of electrical connections including a second plurality of contact areas, the second plurality of contact areas being distinct from the first plurality of contact areas,

wherein the first plurality of electrical connections is routed directly from each of the first plurality of contact areas to a respective first common connection or a second common connection,

wherein the second plurality of electrical connections is routed directly from each of the second plurality of contact areas to a respective one of the first common connection or the second common connection.

12. The label of claim 11, wherein the first plurality of electrical connections includes a plurality of outer contact areas and the second plurality of electrical connections includes a plurality of inner contact areas.

13. The label of claim 11, wherein the auto-calibration circuit or label is generally circular shaped.

14. The label of claim 11, further including a first conductive ink pattern layer and a second conductive ink pattern layer that includes the first plurality and second plurality of electrical connections.

15. The label of claim 14, wherein the first common connection is an inner ring and the second common connection is an outer ring.

16. The label of claim 15, wherein at least one of the inner ring and the outer ring is continuous.

17. A sensor package adapted to be used in a first instrument adapted to determine an analyte concentration in a fluid sample and in a second instrument adapted to determine the analyte concentration in the fluid sample, the first instrument being different from the second instrument, the sensor package comprising:

at least one sensor is operable to receive the fluid sample and operable with the first instrument and the second instrument; and

an auto-calibration circuit or label is operable with the first instrument and the second instrument, the auto-calibration label including a first plurality of electrical connections and a second plurality of electrical connections, the first plurality of electrical connections conveying first instrument encoded-calibration information corresponding to the at least one sensor, the first instrument encoded-calibration information is operable with the first instrument to auto-calibrate for the at least one sensor, the first plurality of electrical connections including a first plurality of contact areas, the second plurality of electrical connections conveying second encoded-calibration information corresponding to the at least one sensor, the second encoded-calibration information is operable with the second instrument to auto-calibrate for the at least one sensor, the second plurality of electrical connections including a second plurality of contact areas, the second plurality of contact areas being distinct from the first plurality of contact areas,

wherein the first plurality of electrical connections is routed directly from each of the first plurality of contact areas to a respective first common connection or a second common connection,

wherein the second plurality of electrical connections is routed directly from each of the second plurality of contact areas to a respective one of the first common connection or the second common connection.

18. The sensor package of claim 17, further including at least one cavity containing a respective one of the at least one sensor, the at least one cavity being arranged around the auto-calibration label.

19. The sensor package of claim 17, wherein the at least one sensor is a plurality of test sensors and the at least one cavity is a plurality of cavities, each of the plurality of cavities containing a respective one of the plurality of sensors.

20. The sensor package of claim 17, wherein the first plurality of electrical connections includes a plurality of outer contact areas and the second plurality of electrical connections includes a plurality of inner contact areas.

21. The sensor package of claim 17, further including a first conductive ink pattern layer and a second conductive ink pattern layer that includes the first plurality and second plurality of electrical connections.

22. The sensor package of claim 21, wherein the first common connection is an inner ring and the second common connection is an outer ring.

23. A system for determining an analyte concentration in a fluid sample, the system comprising:

a test sensor adapted to receive the fluid sample;

a processor responsive to the test sensor and adapted to perform a predefined test sequence for measuring a predefined parameter value; and

an auto-calibration circuit or label coupled to the processor for providing first instrument encoded-calibration information and second instrument encoded-calibration information corresponding to the test sensor, the processor operable to read the first instrument encoded-calibration information and second instrument encoded-calibration information, the first and second instrument-encoded calibration information operable with the processor for each predefined test sequence, the first instrument-encoded calibration information having a first plurality of electrical connections, the first plurality of electrical connections including a first plurality of contact areas, the second instrument-encoded calibration information having a second plurality of electrical connections, the second plurality of contact areas being distinct from the first plurality of contact areas,

wherein the first plurality of electrical connections is routed directly from each of the first plurality of contact areas to a respective first common connection or a second common connection,

wherein the second plurality of electrical connections is routed directly from each of the second plurality of contact areas to a respective one of the first common connection or the second common connection.