Sample capture in one step for test strips
OwnerMark Castle, Jeffrey Perry +2inventors
InventorsMark Castle, Jeffrey Perry, Thomas Shoup, Rodney Kugizaki
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Abstract
A test strip is provided with sample capture that provides for a one step process to achieve a lancing event, sample capture and sample transport in a sensor design that supports one step testing. In various embodiments, the present invention provides for one step testing by, (i) analyte sample capture layout; (ii) analyte sample capture and transport configurations; (iii) structures of sample capture; (iv) processes for forming sample transport, and the like.
Claims13
A test strip device, comprising:
- a first substrate with a first electrode;
- a second substrate with a second electrode, with a fluid passage way between the first and second substrates;
- a spacer layer that includes an aperture coupled to the fluid passage way and positioned between the first and second electrodes;
- a reaction zone/sensor formed between the first and second electrodes;
- and
- a hydrophilic sample collection structure.
A test strip device for testing a biologic analyte obtained by lancing a finger, comprising:
- an aperture in the test strip providing a path for a penetrating member;
- a sample-capture feature;
- a sample-collection feature, and a transport pathway to move the analyte to a specified portion of the test strip for reaction with a reagent and measurement of the reaction products.
A test strip device, comprising:
- an aperture in the test strip providing a path for a penetrating member;
- a sample-capture feature;
- a sample-collection feature;
- and
- a transport pathway created by covering the substrate of the test strip with a cover layer which provides a two-dimensional capillary area over which the analyte spreads automatically by means of capillary forces and in which reagent exists within said capillary area which reacts with the analyte such that the optical properties of the two-dimensional capillary area are changed in proportion to the concentration of the analyte and measurement of said concentration is by optical reflectance, transmission, or fluorescence.
A test strip device, comprising:
- an aperture in the test strip providing a path for the penetrating member;
- a sample-capture feature;
- and
- a sample-collection feature in which the sample-collection feature is at least one of, a micro-fluidic hydrophilic structure containing reagent which reacts with an analyte.
Dependencies are inferred from the claim text.