Containers for reading and handling diagnostic reagents and methods for using the same

• US 7,927,545 B2
• Filed: 05/27/2010
• Issued: 04/19/2011
• Est. Priority Date: 06/18/2003
• Status: Active Grant

• Current Assignee: Ascensia Diabetes Care Holdings AG (PHC Holdings Corporation)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Charlton, Steven C.
• Primary Examiner(s): Warden; Jill
• Assistant Examiner(s): Gerido; Dwan A
• Application Number:
  US12/789,185
• Publication Number:
  US 20100233025A1
• Time in Patent Office: 327 Days
• Field of Search: 422/102, 422/66, 422/56, 422/58, 422/61, 436/44, 436/47, 436/63
• US Class Current: 422/422
• 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 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: G01N 2035/00019 cassette structures
• CPC Class Codes: G01N 31/22 using chemical indicators G01N31/02 takes precedence
• CPC Class Codes: G01N 33/48764 Test tape taken off a spool
• CPC Class Codes: G01N 35/00009 provided with a sample supporting tape, e.g. with absorbent zones
• CPC Class Codes: G01N 35/1002 Reagent dispensers
• CPC Class Codes: Y10T 436/104998 Glucose, ketone, nitrate standard or control
• CPC Class Codes: Y10T 436/11 Automated chemical analysis
• CPC Class Codes: Y10T 436/110833 Utilizing a moving indicator strip or tape
• CPC Class Codes: Y10T 436/113332 with conveyance of sample along a test line in a container or rack

Abstract

A container with a rotatable lid for reading and handling diagnostic reagents in tape form comprising a body portion, a lid portion, a continuous tape, a reagent-sensing device, and a storage device. The body portion includes an inner and outer surface. The lid portion is attached to the body portion and is adapted to rotate from a closed position to an open position. The continuous tape includes a diagnostic reagent. The reagent-sensing device is attached to either the body portion or the lid portion and adapted to read the diagnostic reagent. The storage device is attached to the body portion that is adapted to hold and dispense an unused portion of the continuous tape. During the rotation of the lid portion, the continuous tape is advanced from the first storage device and is extended over the reagent-sensing device.

Claims

1. A sensor system for determining a glucose concentration of a fluid sample, the sensor system comprising:

an optical reagent-sensing device; and

a container including first and second rotatable storage devices having a continuous tape extending from the first rotatable storage device, past the optical reagent-sensing device, to the second rotatable storage device such that the first rotatable storage device holds and dispenses unused portions of the continuous tape and the second rotatable storage device holds and receives used portions of the continuous tape, the container further including a desiccant and a white-reflectance calibration standard, the calibration standard operative to calibrate the optical reagent-sensing device, the continuous tape including a diagnostic reagent and a polymer material,

wherein the optical reagent-sensing device is operative to read the diagnostic reagent such that a glucose concentration for a fluid sample is determined in approximately 5 to 15 seconds.

2. The sensor system of claim 1, wherein the calibration standard is located within the container.

3. The sensor system of claim 1, wherein the container further includes at least one seal to assist in limiting moisture from entering into the container.

4. The sensor system of claim 1, wherein the diagnostic reagent is disposed on the continuous tape.

5. The sensor system of claim 1, wherein the continuous tape further includes a plurality of membranes attached thereto, the diagnostic reagent being disposed on the plurality of membranes.

6. The sensor system of claim 1, wherein diagnostic reagent is disposed in the continuous tape.

7. The sensor system of claim 1, wherein the continuous tape is flat against at least a portion of the optical reagent-sensing device.

8. The sensor system of claim 1, wherein the optical reagent-sensing device is operative to read the diagnostic reagent to determine the analyte concentration of a fluid sample having a volume of less than 1 microliter.