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Analyte-testing instruments

  • US 9,170,251 B2
  • Filed: 11/03/2014
  • Issued: 10/27/2015
  • Est. Priority Date: 03/12/2007
  • Status: Active Grant
First Claim
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1. An instrument configured to determine the concentration of at least one analyte in a fluid, the instrument comprising:

  • a display configured to display information;

    a user-interface mechanism configured to allow interaction with the instrument;

    a body portion including a test-sensor cartridge housed therein and an opening configured to receive a test sensor from the test-sensor cartridge;

    an indexer positioned within the body portion, the indexer comprising an indexer face, a retention pin, a flexible pawl, and a user-accessible tab, the retention pin extending through a first aperture formed generally through the center of the indexer face, the indexer being configured to rotate in a first direction and a second direction about the retention pin, the flexible pawl positioned near an edge of the indexer face, the flexible pawl being configured to assist in rotating the test-sensor cartridge, the indexer face having a second aperture formed therein, the second aperture configured to be generally aligned with the test sensor; and

    an excise mechanism positioned within the body portion, the excise mechanism comprising a push rod configured to extend through the second aperture and a bar coupled with and generally parallel to the push rod.

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