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Test strip with flared sample receiving chamber

  • US 8,222,044 B2
  • Filed: 11/16/2011
  • Issued: 07/17/2012
  • Est. Priority Date: 06/20/2003
  • Status: Active Grant
First Claim
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1. A method of manufacturing a plurality of test strips, comprising:

  • (a) providing a web of base substrate material;

    (b) forming a plurality of electrode sets on the web of base substrate material;

    (c) providing a reagent layer covering at least one electrode of each electrode set;

    (d) depositing a film of spacing material having a series of cavities defined therein such that each one of the cavities aligns with a respective one of the electrode sets on the web of base substrate material, each of the cavities having a flared portion that comprises a location for a fluid receiving opening and an elongated portion extending from the flared portion, the location for the fluid receiving opening has a first width and the elongated portion has a second width, wherein the first width is greater than the second width;

    (e) attaching a covering layer to the film of spacing material to create a series of capillary chambers defined by the series of cavities in the spacing material, the web of base substrate material, and the covering layer; and

    (f) cutting the web into the plurality of test strips.

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