Biomedical assay device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 11, 2001
Issued Date -
N/A
app pub date -
Mar 24, 2000
filing date -
Jun 10, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides an integrated structural unit that includes a diagnostic form that includes at least one active ingredient that is present in an amount that advantageously does not vary by more than about five percent from a predetermined target amount. In one embodiment, the unit form comprises a substrate, a deposit that is disposed on the substrate, and a spreading layer that overlies the deposit and is used to retain and spread a sample of liquid which is to be assayed. The deposit comprises a powder, including the active ingredient(s). The diagnostic form is created via a dry powder deposition apparatus that electrostatically deposits the powder on the substrate utilizing an electrostatic chuck and charged powder delivery apparatus.
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