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Test device

  • US 20020057993A1
  • Filed: 08/30/2001
  • Published: 05/16/2002
  • Est. Priority Date: 08/30/2000
  • Status: Active Grant
First Claim
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1. A test device for testing of analyte concentration in a fluid to be applied thereto, the device comprising:

  • a) a plurality of sensors arranged in a stack, each of said sensors carrying reagent means for producing an electrical signal in response to the concentration of analyte in an applied fluid, each of said sensors having a plurality of electrode tracks for transmitting said electrical signal;

    b) a housing having an opening therein and containing the said stack of sensors;

    c) electrical contacts mounted in relation to the housing for engaging with electrode tracks on a sensor at an engagement location;

    c) a meter connected to the said electrical contacts, having electronics means for producing a signal output which is dependent on the electrical signal from a sensor when the sensor is engaged with the said contacts;

    d) a transport member rotatably mounted in the opening of the housing, having an axis of rotation which spans the opening and having an outer surface which is provided with a recessed region adapted to receive a single sensor from the stack;

    e) spring means within the housing which urge the stack of sensors towards the transport member and which urge a single sensor into the said recess when the recess is suitably aligned adjacent to the stack;

    f) sealing means for making a moisture tight seal between the transport member and the stack when the transport member is in a specified rotational position; and

    g) wherein rotation of the transport member with a sensor in the recessed region will transport the sensor to the engagement location or to a position where the sensor can be moved to the engagement location, whereby electrode tracks of the sensor can engage with the said electrical contacts.

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