Patent ID: 7824616
Filing Date: 2010-11-02
Classification: A61B,B01L,G01N

Abstract:
1. An analyzing instrument for receiving a sample of bodily fluid, comprising: a substrate; a cover over the substrate; a spacing member between the substrate and the cover; a plurality of electrodes formed on the substrate; and a chamber defined between the cover and the substrate at top and bottom, the spacing member having first and second portions that define sidewalls of the chamber, the chamber extending inwardly in a direction substantially parallel to a plane of the substrate from an opening defined at an edge of the analyzing instrument to a position at which the plurality of electrodes are present on the substrate, the sidewalls being curved and extending from the opening to the plurality of electrodes, and having a height that is substantially equal to the thickness of the spacing member, the opening having a top and bottom defined by respective edges of the substrate and the cover, the substrate and cover being substantially parallel at the position of the opening, the chamber having a first section adjacent the opening and a second section inward of the first section that has a smaller width than the first section, the first section width defined by the curved sidewalls of the chamber, the second section of the chamber having dimensions suitable for drawing sample liquid into the analyzing instrument so that sample liquid is delivered to the position at which the plurality of electrodes are present.