07892849 is referenced by 27 patents and cites 481 patents.

A test strip having a small sample-receiving chamber on the order of less than 1 microliter. The inventive test strip includes a reagent layer that extends across the width of the test strip and also extends to the sample-receiving end, such that the edges of the reagent layer are aligned with the side and dose receiving edges of the test strip. The hydrophilic reagent extending to the dosing edge of the strip promotes wicking of the sample into the test strip. The end and side edges of the reagent layer are preferably formed as part of a cutting process that forms individual test strips from a larger web, which results in a smooth and thin reagent layer with a uniform thickness, substantially covering the entire floor of the sample-receiving chamber. The inventive mass production process helps improve the reproducibility of the quantity, location, thickness and other properties of the reagent layer, which in turn improves the accuracy of the test result.

Title
Reagent stripe for test strip
Application Number
12/389954
Publication Number
7892849 (B2)
Application Date
February 20, 2009
Publication Date
February 22, 2011
Inventor
Chris Wilsey
Carmel
IN, US
Dan Mosoiu
Limburgerhof
DE
Michael Fritz
Biblis
DE
Udo Zapf
Speyer
DE
Michael Marquant
Mannheim
DE
David W Burke
Carmel
IN, US
Agent
Woodhard Emhardt Moriarty McNett & Henry
Assignee
Roche Operations
BM
Roche Diagnostics Operations
IN, US
IPC
G01N 33/48
View Original Source