Method of making an auto-calibrating test sensor

• US 20080105024A1
• Filed: 11/05/2007
• Published: 05/08/2008
• Est. Priority Date: 11/07/2006
• Status: Abandoned Application

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Dosmann, Andrew J., Charlton, Steven C., Brenneman, Allen J., Creaven, John P.
• Application Number:
  US11/982,819
• Publication Number:
  US 20080105024A1
• Time in Patent Office: Days
• US Class Current: 73/1.02
• CPC Class Codes: G01N 21/274 Calibration, base line adjustment, drift correction
• CPC Class Codes: G01N 21/278 Constitution of standards
• CPC Class Codes: G01N 21/8483 Investigating reagent band test-element handling not specific to a test method G01N33/4875; analytical elements specific to chemical analysis of biological material G01N33/52; autometer with reagent band G01N35/04
• CPC Class Codes: G01N 33/48771 Coding of information, e.g. calibration data, lot number
• CPC Class Codes: Y10T 29/49004 including measuring or testing of device or component part

Abstract

A test sensor is made that is adapted to assist in determining the concentration of an analyte in a fluid sample. The method includes providing a lid and providing a base. The lid is attached to the base to form an attached lid-base structure. The lid-base structure has a first end adapted to receive the fluid sample and a second opposing end adapted to be placed into a meter. Auto-calibration information is assigned to the lid-base structure. The second opposing end is formed such that the shape of the second opposing end corresponds to the auto-calibration information.

Claims

1. A method of making a test sensor adapted to assist in determining the concentration of an analyte in a fluid sample, the method comprising the acts of:

providing a lid;

providing a base;

attaching the lid to the base to form an attached lid-base structure, the lid-base structure having a first end adapted to receive the fluid sample and a second opposing end adapted to be placed into a meter;

assigning auto-calibration information to the lid-base structure; and

forming the second opposing end such that the shape of the second opposing end corresponds to the auto-calibration information.

2. The method of claim 1, wherein the test sensor further includes a spacer, the spacer being located between the lid and the base.

3. The method of claim 1, wherein the auto-calibration information is a program auto-calibration number.

4. The method of claim 1, wherein the test sensor is an optical test sensor.

5. The method of claim 1, wherein the test sensor is an electrochemical test sensor.

6. A method of making a test sensor adapted to assist in determining the concentration of an analyte in a fluid sample, the method comprising the acts of:

providing a lid;

providing a base;

attaching the lid to the base to form an attached lid-base structure, the lid-base structure having a first end adapted to receive the fluid sample and a second opposing end adapted to be placed into a meter;

assigning auto-calibration information to the lid-base structure; and

forming at least one cutout near or at the second opposing end such that the shape, dimensions and/or number of the at least one cutout corresponds to the program auto-calibration number.

7. The method of claim 6, wherein the at least one cutout is a plurality of cutouts.

8. The method of claim 6, wherein the test sensor further includes a spacer, the spacer being located between the lid and the base.

9. The method of claim 6, wherein the auto-calibration information is a program auto-calibration number.

10. A method of making a test sensor adapted to assist in determining the concentration of an analyte in a fluid sample, the method comprising the acts of:

providing a lid;

providing a base;

attaching the lid to the base to form an attached lid-base structure, the lid-base structure having a first end adapted to receive the fluid sample and a second opposing end adapted to be placed into a meter;

assigning auto-calibration information to the lid-base structure; and

forming at least one partial cutout near or at the second opposing end such that the shape, dimensions and/or number of the at least one partial cutout corresponds to the program auto-calibration number.

11. The method of claim 10, wherein the at least one partial cutout is exactly one partial cutout.

12. The method of claim 10, wherein the test sensor further includes a spacer, the spacer being located between the lid and the base.

13. The method of claim 10, wherein the auto-calibration information is a program auto-calibration number.

14. An electrochemical test sensor being adapted to determine an analyte concentration of a fluid sample, the electrochemical test sensor comprising:

a base including a first base end and an opposing second base end;

a plurality of electrodes being formed on the base at or near the first end, the plurality of electrodes including a working electrode and a counter electrode; and

at least one reagent being positioned at or near the first end so as to contact the fluid sample,

wherein the electrochemical test sensor includes a first end and an opposing second end, the test sensor having an auto-calibration area, the auto-calibration area having non-conductive markings in a form of a pattern corresponding to auto-calibration information, the markings being adapted to be optically detected.

15. The test sensor of claim 14, wherein the auto-calibration area is of a generally uniform color and the markings are of a contrasting color or shade.

16. The test sensor of claim 14, wherein the auto-calibration area is formed on the base at the opposing second base end.

17. The test sensor of claim 14, further including a lid, the lid covering at least a portion of the base, the lid having a first lid end and an opposing second lid end.

18. The test sensor of claim 17, wherein the auto-calibration area is formed on the lid.

19. The test sensor of claim 14, wherein the markings including constant markings and variable markings.

20. An optical test sensor being adapted to determine an analyte concentration of a fluid sample, the optical test sensor comprising:

a base including a first base end and an opposing second base end;

a fluid-receiving area being adapted to receive a fluid sample, the fluid-receiving area being located near or at the first base end;

at least one reagent being positioned to contact the fluid sample in the fluid-receiving area, the at least one reagent assisting in optically determining the analyte concentration of the fluid sample;

wherein the optical test sensor includes a first end and an opposing second end, the test sensor having an auto-calibration area, the auto-calibration area having non-conductive markings in a form of a pattern corresponding to auto-calibration information, the markings being adapted to be optically detected.

21. The test sensor of claim 20, wherein the auto-calibration area is of a generally uniform color and the markings are of a contrasting color or shade.

22. The test sensor of claim 20, wherein the auto-calibration area is formed on the base at the opposing second base end.

23. The test sensor of claim 20, further including a lid, the lid covering at least a portion of the base, the lid having a first lid end and an opposing second lid end.

24. The test sensor of claim 23, wherein the auto-calibration area is formed on the lid.

25. The test sensor of claim 20, wherein the markings including constant markings and variable markings.