Devices for analyte concentration determination and methods of manufacturing and using the same
First Claim
1. A test strip for determining the concentration of at least one analyte in a physiological sample, said test strip comprising;
- a support;
a membrane comprising at least one testing reagent for determining the concentration of at least one analyte in a physiological sample, said membrane having a first surface attached to said support and a second surface opposite said first surface; and
a fluid transfer element for transferring said sample to said membrane, said fluid transfer element comprising at least a first area and a second area, wherein the thickness of said first area is greater than the thickness of said second area and said second area directly overlies said second surface of said membrane.
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Accused Products
Abstract
Test strips for determining the concentration of at least one analyte, e.g., glucose, in a physiological sample and methods for their manufacture and use and are provided. The subject test strips include a transfer element for facilitating the transfer of sample to a reaction area of the test strip. In certain embodiments, the transfer element, typically porous, has a first area and a second area, and in certain embodiments the two areas have different thicknesses. In other embodiments, the transfer element is non-porous and is configured to transfer sample by wicking it between the transfer element and the reaction area of the test strip. In the subject methods, the transport element facilitates transfers of a sample to a reaction area of the test strip. The subject test strips and methods find use in a variety of different applications, particularly in the determination of glucose concentrations.
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Citations
17 Claims
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1. A test strip for determining the concentration of at least one analyte in a physiological sample, said test strip comprising;
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a support;
a membrane comprising at least one testing reagent for determining the concentration of at least one analyte in a physiological sample, said membrane having a first surface attached to said support and a second surface opposite said first surface; and
a fluid transfer element for transferring said sample to said membrane, said fluid transfer element comprising at least a first area and a second area, wherein the thickness of said first area is greater than the thickness of said second area and said second area directly overlies said second surface of said membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification