Analyte Test Strip Dispensers and Elastomeric Caps for Sealing the Dispensers

• US 20120082597A1
• Filed: 09/30/2010
• Published: 04/05/2012
• Est. Priority Date: 09/30/2010
• Status: Abandoned Application

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories)
• Inventors: Doniger, Ken, Sharp, Craig W., Rush, Benjamin M.
• Application Number:
  US12/895,484
• Publication Number:
  US 20120082597A1
• Time in Patent Office: Days
• US Class Current: 422/401
• CPC Class Codes: B01L 3/5023 with a sample being transported to, and subsequently stored in an absorbent for analysis
• CPC Class Codes: G01N 33/48757 Test elements dispensed from a stack
• CPC Class Codes: G01N 33/558 using diffusion or migration of antigen or antibody immunochromatographic test strips G01N33/54387

Abstract

In some aspects, analyte test strip dispensers are provided. In some aspects, the analyte test strip dispensers store a plurality of analyte test strips and dispense one or more analyte test strips when needed. The analyte test strips may be stacked with an analyte test strip at one of the stack engaged with a dispensing element. The dispensing element may be slid relative to the dispenser to displace the analyte test strip out of the dispenser. In some aspects, an elastomeric cap having strong barrier properties for water vapor and moisture is provided. The elastomeric cap may be undersized in relation to the dispenser and stretched to couple to the dispenser, thus providing a pressure-fit seal along with strong barrier properties to water vapor and moisture.

Claims

1. A analyte test strip dispenser, comprising:

a housing including an open end of the housing;

a stack of analyte test strips disposed within the housing, the stack of analyte test strips stacked in a longitudinal direction and comprising a first analyte test strip at a first end of the stack and a second analyte test strip adjacent the first analyte test strip, the first end of the stack near the opening of the housing;

a dispensing element coupled to the housing and configured to displace the first analyte test strip out of the opening of the housing;

a biasing element coupled to the strip carrier and applying a biasing force to the stack of analyte test strips in a direction towards the dispensing element; and

an elastomeric cap including a cavity that receives the open end of the housing, wherein the elastomeric cap is undersized in relation to the open end of the housing such the elastomeric cap stretches over the open end of the housing and provides a pressure-fit seal around the open end of the housing.

2. The analyte test strip dispenser of claim 1, wherein the elastomeric cap comprises a material having strong barrier properties for water vapor and moisture.

3. The analyte test strip dispenser of claim 2, wherein the material is a thermoplastic elastomer, a thermoset polymer, or ethylene propylene diene Monomer (EPDM).

4. The analyte test strip dispenser of claim 3, wherein the material is cycloolefin copolymer.

5. The analyte test strip dispenser of claim 2, wherein the dispensing element comprises a first curved contour and the open end of the housing includes a second curved contour, the first curved contour similarly shaped to the second curved contour, and wherein the cap comprises an interior surface of the cavity having a third curved contour that approximates a shape of the first and second curved contours.

6. The analyte test strip dispenser of claim 2, wherein the dispensing element comprises a first curved contour that is received by the cavity of the cap, the first curved contour similarly shaped to a second curved contour of the open end of the housing received by the cavity of the cap, wherein the cap comprises an interior surface of the cavity having a third curved contour that approximates a shape of the first and second curved contours.

7. The analyte test strip dispenser of claim 6, wherein the first, second, and third curved contours have are approximately semi-elliptically shaped.

8. The analyte test strip dispenser of claim 6, wherein the first, second, and third curved contours have are approximately semi-circularly shaped.

9. The analyte test strip dispenser of claim 1, wherein the cavity of the elastomeric cap includes an opening that is similarly shaped to the open end of the housing 111 so as to provide a tight seal.

10. The analyte test strip dispenser of claim 2, further comprising:

a block of desiccant coupled to the stack of analyte test strips and disposed within the housing to absorb water vapor and moisture, the block of desiccant at a second end of the stack of analyte test strips, the second end of the stack opposite the first end of the stack;

wherein the biasing element is coupled to the block of desiccant such that the biasing element applies the biasing force to the stack of analyte test strips via the block of desiccant.

11. The analyte test strip dispenser of claim 1, wherein the elastomeric cap comprises elastomeric side arms that removably couple to the dispenser when the cap is coupled with the dispenser.

12. The analyte test strip dispenser of claim 1, comprising:

a strip carrier within the housing, the strip carrier having the stack of analyte test strips disposed in the strip carrier, the dispensing element slidably coupled to the strip carrier and adjacent to the first analyte test strip, wherein the dispensing element is coupled to the housing via the strip carrier;

wherein the dispensing element configured to latitudinally displace the first analyte test strip from a first position to a second position when the dispensing element is slid in a first latitudinal direction, and wherein the first analyte test strip remains in the second position when the dispensing element is slid back in a second latitudinal direction that is opposite the first latitudinal direction.

13. The analyte test strip dispenser of claim 12, wherein the dispensing element includes an abutment surface that abuts the first analyte test strip and an engagement element that engages the first analyte test strip and displaces the first analyte test strip in the first latitudinal direction when the dispensing element is slid in the first latitudinal direction.

14. The analyte test strip dispenser of claim 13, wherein the engagement element comprises a protrusion extending from the abutment surface and adjacent to a first side edge of the first analyte test strip, wherein the protrusion pushes the first analyte test strip from the first position to the second position when the dispensing element is slid in the first latitudinal direction.

15. The analyte test strip dispenser of claim 14, wherein when the first analyte test strip is removed from the analyte test strip dispenser, the biasing force displaces the second analyte test strip towards the dispensing element such that the abutment surface is abutting the second analyte test strip with the protrusion extending adjacent to a second side edge of the second analyte test strip.

16. The analyte test strip dispenser of claim 13, wherein the engagement element engages the second analyte test strip when the first analyte test strip is removed from the analyte test strip dispenser.

17. The analyte test strip dispenser of claim 12, wherein the dispensing element comprises a first curved contour that aligns approximately flush with a second curved contour of the housing prior to the dispensing element being slid in a first longitudinal direction.

18. The analyte test strip dispenser of claim 12, wherein the dispensing element comprises recessed surfaces and slots for coupling with the strip carrier, and wherein the strip carrier comprises coupling elements that extend along the recessed surfaces and fit within the slots, the coupling elements sliding along the recessed surfaces and within the slots when the dispensing element is slid in the first latitudinal direction and the second latitudinal direction.

19. An elastomeric cap for sealing an analyte test strip dispenser, comprising:

an elastomeric shell forming a cavity that receives an open end of an analyte test strip dispenser; and

an interior surface within the cavity;

wherein the elastomeric cap is elastic so as to be stretchable over the open end of the dispenser to provide a pressure-fit seal around the open end of the dispenser, and wherein the elastomeric cap comprises a material having strong barrier properties for water vapor and moisture.

20. The elastomeric cap of claim 19, wherein the material comprises a thermoplastic elastomer, a thermoset polymer, or ethylene propylene diene Monomer (EPDM).

21. The elastomeric cap of claim 20, wherein the material comprises a cycloolefin copolymer.

22. The elastomeric cap of claim 19, wherein the interior of the cavity has a curved contour that approximates a shape of a curved contour of the dispenser.

23. The elastomeric cap of claim 19, comprising:

elastomeric side arms that extend from the elastomeric shell and removably couple to the dispenser when the cap is coupled with the dispenser.