TEST STRIP AND CONNECTOR

• US 20090029479A1
• Filed: 07/24/2007
• Published: 01/29/2009
• Est. Priority Date: 07/24/2007
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: LifeScan Scotland Limited (Johnson & Johnson)
• Inventors: DOCHERTY, Edward, Kermani, Mahyar Z.
• Granted Patent: US 7,875,461 B2
• Time in Patent Office: Days
• US Class Current: 436/149
• CPC Class Codes: C12Q 1/004 mediator-assisted
• CPC Class Codes: C12Q 1/006 for glucose
• CPC Class Codes: G01N 27/3272 Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels optical biosensors G01N33/52
• CPC Class Codes: G01N 33/48771 Coding of information, e.g. calibration data, lot number

Abstract

An analyte test strip is provided that includes a generally planar substrate and a plurality of conductive areas disposed on the substrate to define five distinct conductive portions comprising at least five contact lands defining respective vertices of a polygon, and in which two contact lands are located in a single conductive portion. System and method utilizing the test strip are also described.

Claims

1. An analyte test strip comprising:

a generally planar substrate;

a plurality of conductive areas disposed on the substrate to define five distinct conductive portions comprising at least five contact lands defining respective vertices of a polygon, and in which two contact lands are located in a single conductive portion.

2. The test strip of claim 1, further comprising an insulation layer, reagent layer and adhesive layer.

3. The test strip of claim 1, in which the at least five contact lands comprise seven contact lands.

4. The test strip of claim 1, in which the polygon comprises a heptagon.

5. The test strip of claim 4, in which the generally planar substrate extends along a longitudinal axis to define a generally rectangular member.

6. The test strip of claim 5, in which one of the vertices of the heptagon is located substantially on the longitudinal axis and the remainder of the vertices are symmetric about the longitudinal axis.

7. The test strip of claim 6, further comprising first and second working electrodes and reference electrode in electrical communication with respective conductive portions.

8. The test strip of claim 7, further comprising a reagent layer proximate the first and second working electrodes, the reagent layer including an enzyme, ruthenium mediator and a buffer.

9. The test strip of claim 8, in which the ruthenium mediator comprises Ruthenium Hexamine Trichloride and in which the enzyme comprises an enzyme selected from a group consisting essentially of glucose oxidase, glucose dehydrogenase, or combinations thereof.

10. The test strip of claim 1, in which the polygon comprises an irregular shaped polygon.

11. An analyte measurement system comprising:

a housing including a connector module disposed in the housing, the connector module including a plurality of spaced apart contact leads disposed in the connector module; and

a test strip comprising a generally planar substrate, the test strip including a plurality of conductive areas disposed on the substrate to define five distinct conductive portions comprising at least five contact lands defining respective vertices of a polygon, and in which two contact lands are located in a single conductive portions so that the plurality of spaced apart contact leads engages respective contact lands when the substrate is inserted into the connector module.

12. The system of claim 11, in which the polygon comprises a heptagon.

13. The system of claim 12, in which the generally planar substrate extends along a longitudinal axis to define a generally rectangular member, in which one of the vertices of the heptagon is located substantially on the longitudinal axis and the remainder of the vertices are symmetric about the longitudinal axis.

14. The system of claim 13, further comprising first and second working electrodes and reference electrode in electrical communication with respective conductive portions.

15. The system of claim 11, in which the connector module comprises first and second members with the plurality of contact leads located proximate the first and second members.

16. The system of claim 15, in which the plurality of contact leads comprise respective terminal ends that define vertices of the polygon.

17. A method of operating a test measurement device, the method comprising:

providing a measurement device having seven contact leads;

designating two contact leads as strip detection contact leads; and

locating seven contact lands as respective vertices of a polygon on a substrate with two contact lands that are in substantial alignment with the strip detection contact leads when the substrate is inserted into the measurement device.

18. The method of claim 17, further comprising turning on the measurement device via a connection between the strip detection contact leads and the contact lands.

19. The method of claim 17, in which the designating comprises selecting strip detection contact leads for an intended geographical location of the substrate and the measurement device.

20. The method of claim 17, in which the locating comprises forming an electrical connection between the two contact lands.