06270637 is referenced by 314 patents and cites 4 patents.

An electrochemical biosensor test strip with four new features. The test strip includes an indentation for tactile feel as to the location of the strips sample application port. The sample application port leads to a capillary test chamber, which includes a test reagent. The wet reagent includes from about 0.2% by weight to about 2% by weight polyethylene oxide from about 100 kilodaltons to about 900 kilodaltons mean molecular weight, which makes the dried reagent more hydrophilic and sturdier to strip processing steps, such as mechanical punching, and to mechanical manipulation by the test strip user. The roof of the capillary test chamber includes a transparent or translucent window which operates as a “fill to here” line, thereby identifying when enough test sample (a liquid sample, such as blood) has been added to the test chamber to accurately perform a test. The test strip may further include a notch located at the sample application port. The notch reduces a phenomenon called “dose hesitation”.

Title
Electrochemical biosensor test strip
Application Number
9/386210
Publication Number
6270637 (B1)
Application Date
August 31, 1999
Publication Date
August 7, 2001
Inventor
Brian A Heald
Fishers
IN, US
Robert Kitchel Earl
Carmel
IN, US
Jiaxiong Jason Ho
Carmel
IN, US
David W Burke
Carmel
IN, US
R Dale Delk
Muncie
IN, US
Eric R Diebold
Fishers
IN, US
Richard J Bodensteiner
Indianapolis
IN, US
Daniel R McMinn
Fishers
IN, US
Nigel A Surridge
Indianapolis
IN, US
William F Crismore
Indianapolis
IN, US
Agent
Brinks Hofer Gilson & Lione
US
Assignee
Roche Diagnostics Corporation
IN, US
IPC
G01N 27/26
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