Protective test strip platform for optical meter apparatus

• US 20030026734A1
• Filed: 08/01/2002
• Published: 02/06/2003
• Est. Priority Date: 11/24/1999
• Status: Active Grant

• Current Assignee: Nipro Diagnostics, Inc.
• Original Assignee: Home Diagnostics Incorporated
• Inventors: Modzelewski, Brent, Rounds, George
• Granted Patent: US 6,979,571 B2
• Time in Patent Office: Days
• US Class Current: 422/68.1
• 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: Y10S 436/805 Optical property

Abstract

A test strip platform for a testing apparatus of the type using test strips, wherein the platform has a shroud defining a strip track for positioning an inserted strip over an optical aperture for making analytical determinations. The platform has a hood permanently mounted to the shroud for overlying the optical window and protecting the testing apparatus optics. The strip track has stabilizing members for holding the strip in testing position. The hood provides camming members for guiding the leading edge of an inserted strip into cooperative engagement with the stabilizing members for ensuring proper insertion of the strip.

Claims

1. A test strip platform of the type used for receiving a test strip for an analytical determination, the test platform comprising:

a shroud portion comprising

a strip track being dimensioned to receive a test strip therein and for providing lateral stability to said strip while allowing said strip to be slidably inserted in a direction of a longitudinal dimension of said strip;

an optical aperture along said strip track dimensioned to underlie at least a portion of said strip and to provide optical access thereto;

at least one stabilizing member extending into said strip track in the vicinity of said optical aperture to retain a test strip therein with said portion of said test strip in a predetermined spatial orientation with respect to said optical aperture;

a hood portion permanently attached to said shroud portion over said strip track so as to protectingly overlie said optical aperture;

the hood portion comprising

at least one camming member descending into said strip track and positioned so as to guide the leading edge of an inserted strip into cooperative engagement with said at least one stabilizing member.

2. The test strip platform of claim 1, wherein said at least one stabilizing member comprises at least on finger member.

3. The test strip platform of claim 2, wherein said at least one finger member further comprises a protuberance for engaging indents on a test strip.

4. The test strip platform of claim 1 further comprising structure for engaging indents on an inserted strip for providing retention of a test strip after full strip insertion.

5. The test strip platform of claim 4, wherein said structure further provides a tactile indication of full strip insertion.

6. The test strip platform of claim 3, wherein there are two fingers.

7. The test strip platform of claim 1, wherein there are two camming members.

8. A testing apparatus comprising a test strip platform according to claim 1.

9. A method of performing an analytical determination comprising the steps of:

providing a testing apparatus as set forth in claim 7;

providing a test strip having a leading edge and a color spot;

applying a material containing analyte to said test strip so as to cause an optically measurable change at said color spot;

introducing a test strip into said strip track;

advancing said test strip such that said leading edge is guided by said at least one camming member into cooperative engagement with said at least one stabilizing member until said color spot is overlying said optical aperture;

optically accessing said color spot to make the analytical determination.

10. The method of claim 9 further comprising the step of retaining said strip in position in said strip track when said color spot is overlying said optical aperture.

11. The method of claim 9 further comprising the step of providing a tactile indication when said color spot is overlying said optical aperture.