Method of using a protective test strip platform for optical meter apparatus

• US 6,979,571 B2
• Filed: 08/01/2002
• Issued: 12/27/2005
• Est. Priority Date: 11/24/1999
• Status: Expired due to Fees

• Current Assignee: Nipro Diagnostics, Inc.
• Original Assignee: Home Diagnostics Incorporated
• Inventors: Modzelewski, Brent, Rounds, George
• Primary Examiner(s): ALEXANDER, LYLE
• Application Number:
  US10/208,878
• Publication Number:
  US 20030026734A1
• Time in Patent Office: 1,244 Days
• Field of Search: 422/58, 422/61, 422/68.1, 422/82.05, 436/164, 436/166, 436/169, 436/805
• US Class Current: 436/164
• 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 method of performing an analytical determination comprising the steps of:

providing a testing apparatus comprising;

a shroud portion, said shroud portion comprising a strip track, an optical aperture along said strip track, and at least one stabilizing member extending into said strip track in the vicinity of said optical aperture; and

a hood portion immovably attached to said shroud portion over said strip track so as to protectingly overlie said optical aperture, said hood portion comprising at least one camming member descending into said strip track;

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 said test strip into said strip track;

advancing said test strip such that said at least one camming member and said at least one stabilizing member guide said test strip into a testing position; and

while said test strip is in said testing position, optically accessing said color spot through said optical aperture to make the analytical determination.

2. The method of claim 1, further comprising the step of

said at least one camming member downwardly deflecting said leading edge of said test strip so that said leading edge passes beneath said at least one stabilizing member.

3. The method of claim 1, wherein said test strip has at least one indent and said at least one stabilizing member has at least one protruberance engaging said at least one indent when said test strip is in said testing position.

4. The method of claim 3, further comprising the step of:

said at least one protruberance engaging said at least one indent to provide a tactile indication when said test strip is inserted into said testing position.

5. The method of 3, further comprising the step of:

said at least one protruberance engaging said at least one indent to provide a resistance for holding said test strip in said testing position.