Sample metering device and assay device with integrated sample dilution
AssigneeAbbott Point of Care Inc.
InventorCary James Miller
Life of this patent
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Abstract
In one embodiment, the invention is to a sample metering device, comprising a sample holding chamber oriented between a sample entry port and a sample extraction unit, wherein a portion of said extraction unit defines a metered volume of a sample. A diluent may be transported over and/or through the extraction unit to form a diluted sample for sample analysis. In another embodiment, the invention is to an apparatus and method for rapid determination of analytes in liquid samples by various assays including immunoassays incorporating a sample dilution feature, capable of being used in the point-of-care diagnostic field is provided. The devices and methods of the invention preferably are well-suited for high range sample dilution.
Claims19
A sensor cartridge for sensing at least one analyte in a sample, comprising:
- at least one sensor in an analysis conduit;
- a sample chamber between a sample entry port and a sample extraction unit;
- a diluent package containing a diluent;
- a diluent conduit configured for transporting diluent from the diluent package directly to the sample extraction unit;
- and
- a pump configured to transfer said diluent through said diluent conduit, over and/or through said sample extraction unit, and into said analysis conduit.
Dependencies are inferred from the claim text.