Method of forming an auto-calibration circuit or label

• US 8,424,763 B2
• Filed: 09/01/2009
• Issued: 04/23/2013
• Est. Priority Date: 10/07/2008
• Status: Active Grant

• Current Assignee: Ascensia Diabetes Care Holdings AG (PHC Holdings Corporation)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Charlton, Steven C., Holzer, Matthew, Wu, Mu, Edelbrock, Andrew J.
• Primary Examiner(s): Lee, Michael G
• Assistant Examiner(s): GUDORF, LAURA A
• Application Number:
  US12/551,654
• Publication Number:
  US 20100084466A1
• Time in Patent Office: 1,330 Days
• Field of Search: 235/451, 422 62- 65, 422/403, 422/420, 436/180, 156234-239
• US Class Current: 235/451
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157 disposable multilayered or laminated electrodes G01N27/307; details of handling chemical test elements G01N33/4875
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• 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

A method of forming and using an auto-calibration circuit or label on a test sensor includes providing a label or circuit. The label or circuit includes a first layer, a second layer and a lamination portion. The second layer is located between the first layer and the lamination portion. The first layer includes polymeric material. The second layer includes conductive material. The label or circuit is applied to the test sensor via the lamination portion. After applying the label or circuit to the test sensor, portions of the second layer are ablated using a laser to form an auto-calibration pattern on the label or circuit.

Claims

1. A method of forming and using an auto-calibration circuit or label on a test sensor, the method comprising the acts of:

providing a label or circuit, the label or circuit including a first layer, a second layer and a lamination portion, the second layer being located between the first layer and the lamination portion, the second layer including conductive material;

applying the label or circuit to the test sensor via the lamination portion; and

after applying the label or circuit to the test sensor, ablating portions of the second layer using a laser to form an auto-calibration pattern on the label or circuit, the first layer being located between the laser and the second layer during ablation in which the first layer is generally transparent to the ablation.

2. The method of claim 1 wherein the first layer includes polymeric material.

3. The method of claim 2 wherein the polymeric material includes polycarbonate, polyvinyl chloride (PVC), polystyrene, polymethylmethacrylate, polyethylene terephthlate (PET) or combinations thereof.

4. The method of claim 3 wherein the polymeric material is polyethylene terephthalate (PET).

5. The method of claim 1 wherein the second layer includes palladium, gold, copper, nickel, aluminum, carbon or combinations thereof.

6. The method of claim 5 wherein the second layer includes aluminum.

7. The method of claim 1 wherein the label or circuit further includes a liner, the liner being located adjacent to the lamination portion.

8. The method of claim 1 wherein the lamination portion is a pressure-sensitive adhesive.

9. The method of claim 1 wherein the lamination portion is a continuous layer.

10. The method of claim 1 wherein the lamination portion is a non-continuous layer.

11. The method of claim 1 further including the act of using the auto-calibration circuit or label to assist in determining information related to an analyte, the auto-calibration circuit or label being read optically.

12. The method of claim 1 further including the act of using the auto-calibration circuit or label to assist in determining information related to an analyte, the auto-calibration circuit or label being read by capacitance measurements.

13. A method of forming and applying an auto-calibration circuit or label on a test sensor, the method comprising the acts of:

providing a label or circuit, the label or circuit including a first layer, a second layer and a lamination portion, the second layer being located between the first layer and the lamination portion, the first layer including polyethylene terephthalate (PET), the second layer including aluminum;

applying the label or circuit to the test sensor; and

after applying the label or circuit to the test sensor, ablating portions of the second layer using a laser to form an auto-calibration pattern on the label or circuit, the first layer being located between the laser and the second layer during ablation in which the first layer is generally transparent to the ablation.

14. A method of forming a test-sensor package including at least one test sensor, the method comprising the acts of:

providing a label or circuit, the label or circuit including a first layer, a second layer and a lamination portion, the second layer being located between the first layer and the lamination portion, the second layer including conductive material;

applying the label or circuit to the test-sensor package via the lamination portion; and

after applying the label or circuit to the test sensor, ablating portions of the second layer using a laser to form an auto-calibration pattern on the test-sensor package, the first layer being located between the laser and the second layer during ablation in which the first layer is generally transparent to the ablation.

15. The method of claim 14 wherein the at least one test sensor is a plurality of test sensors.

16. The method of claim 14 wherein the first layer includes polymeric material.

17. The method of claim 16 wherein the polymeric material includes polycarbonate, polyvinyl chloride (PVC), polystyrene, polymethylmethacrylate, polyethylene terephthlate (PET) or combinations thereof.

18. The method of claim 14 wherein the second layer includes palladium, gold, copper, nickel, aluminum, carbon or combinations thereof.

19. The method of claim 18 wherein the second layer includes aluminum.

20. The method of claim 14 wherein the label or circuit further includes a liner, the liner being located adjacent to the lamination portion.

21. The method of claim 14 wherein the lamination portion is a continuous layer.

22. The method of claim 14 further including the act of using the auto-calibration circuit or label to assist in determining information related to an analyte, the auto-calibration circuit or label being read optically.

23. The method of claim 14 further including the act of using the auto-calibration circuit or label to assist in determining information related to an analyte, the auto-calibration circuit or label being read by capacitance measurements.

24. A method of forming and using an auto-calibration circuit or label on a test sensor, the method comprising the acts of:

providing a test sensor, at least a section of the test sensor including a first layer and second layer, the second layer including conductive material; and

ablating portions of the second layer using a laser to form an auto-calibration pattern on the label or circuit, the first layer being located between the laser and the second layer during ablation in which the first layer is generally transparent to the ablation.

25. A method of forming a test-sensor package including at least one test sensor, the method comprising the acts of:

providing a test-sensor package, at least a section of the test-sensor package including a first layer and a second layer, the second layer including conductive material;

ablating portions of the second layer using a laser to form an auto-calibration pattern on the test-sensor package, the first layer being located between the laser and the second layer during ablation in which the first layer is generally transparent to the ablation.