Boehringer Mannheim Gmbh

Roche Diagnostics Gmbh

Boehringer Mannheim Company

David R Moorman

David J Ledden

Brian A Heald

David D Webster

Michael J Kinch

Harvey B Buck

The invention relates to a process for making a test element, such as an analytical test element. Compositions of matter, such as analyte specific receptors, are treated to carry a charge. These are then applied to test carriers treated to carry a charge opposite that of the composition of matter. Interaction of charge fixes the composition of matter to the test element.

Process for preparing test elements

This application describes a casing for a diagnostic test strip. The casing contains two openings. One of the openings is defined by four sides, two of which, positioned opposite each other, terminate in a ridge. The ridge terminates short of the point where the diagnostic test strip is placed. A small gap results. This gap assists in metering liquid to the diagnostic test strip.

Casing means for analytical test apparatus

The invention is an apparatus useful in carrying out an analytical assay. The apparatus has a positive and negative control, as well as a site for determining the presence, amount, or lack of an analyte in a sample.

Analytical test apparatus with on board negative and positive control

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Indianapolis, IN, United States of America

David R Moorman