The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 29, 2003

Filed:

Oct. 05, 2000
Applicant:
Inventors:

Koon-wah Leong, Sunnyvale, CA (US);

Yeung Siu Yu, Pleasanton, CA (US);

Edward Gray Rice, Palo Alto, CA (US);

Assignee:

Lifescan, Inc., Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 3/348 ;
U.S. Cl.
CPC ...
G01N 3/348 ;
Abstract

A reagent test strip for measuring an analyte concentration in a biological fluid has a spreading mesh sandwiched between a support and a reagent matrix. The support has a through hole that is covered by the mesh. In use, a sample of the fluid is applied through the hole in the support to the spreading mesh. The sample then passes through the mesh to the matrix, which contains a reagent that indicates the analyte concentration by causing a corresponding change in reflectance at its free surface. Optionally, an adhesive layer attaches the mesh, and optionally the matrix as well, to the support.


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