Liquid transport system
First Claim
1. A diagnostic assay device comprising a first member and a diagnostic assay element, said first member and said assay element having opposed surfaces which are spaced apart throughout an intended liquid transport zone a distance effective to cause capillary flow of a sample liquid introduced therebetween throughout the intended liquid transport zone and means to permit introduction of a liquid between the opposed surfaces of said first member and said assay element, said opposed surface of said first member carrying a plurality of discrete noncontinuous projections arranged throughout said surface in the intended liquid transport zone, each said projection being spaced apart from the others in a predetermined pattern and being in contact or virtual contact with said opposed surface of said assay element.
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Accused Products
Abstract
A liquid transport system provides controlled flow of liquid in a liquid flow zone between two surfaces wherein one surface includes a plurality of projections, or raised areas, arranged substantially throughout the surface in the liquid flow zone and an aperture for allowing the introduction of liquid between the two surfaces. In a preferred embodiment the projections on the first surface are arranged in parallel spaced rows and parallel spaced columns. The second surface may be one surface of a layer of a diagnostic assay element.
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Citations
12 Claims
- 1. A diagnostic assay device comprising a first member and a diagnostic assay element, said first member and said assay element having opposed surfaces which are spaced apart throughout an intended liquid transport zone a distance effective to cause capillary flow of a sample liquid introduced therebetween throughout the intended liquid transport zone and means to permit introduction of a liquid between the opposed surfaces of said first member and said assay element, said opposed surface of said first member carrying a plurality of discrete noncontinuous projections arranged throughout said surface in the intended liquid transport zone, each said projection being spaced apart from the others in a predetermined pattern and being in contact or virtual contact with said opposed surface of said assay element.
Specification