Patent ID: 7842234
Filing Date: 2010-11-30
Classification: B01L,B32B,G01N

Abstract:
1. A diagnostic card for use with a card reader in sensing at least one component concentration of a fluid sample, comprising: a card body at least one component sensor located in a sensor region of the card body; a chamber defined in the card body outside the sensor region for containing a fluid and including separate fill and vent openings for filling of the chamber with a fluid without pressurization; a fluid conduit for fluidically connecting the chamber with the sensor region, the chamber being sealed from the fluid conduit; a valve located within the sealed chamber for opening the sealed chamber to fluidically connect the chamber to the fluid conduit without pressurization of the chamber; and a delivery structure separate and distinct from and operable independent of the valve for forcing fluid out of the chamber and into the fluid conduit, when the chamber contains fluid and when the chamber is fluidically connected to the fluid conduit by the valve.