US 2013/0277232 A1Published application

Multiple layer gel

AssigneeLuoxis Diagnostics, Inc.

InventorsRaphael Bar-Or, David Bar-Or, Leonard T. Rael

Life of this patent

Estimating the term…

Loading patent…

Abstract

A multiple layer gel and method for forming a multiple layer gel are provided. The multiple layer gel includes an isolation layer and an electrolyte layer. The isolation layer provides a molecular weight screen, to prevent proteins or other molecules from contacting a reference cell covered by the isolation layer. The electrolyte layer covers the isolation layer, and provides a source of ions that place the reference cell in ionic and/or electrical contact with a fluid sample. The multiple layer gel can be used to maintain a reliable reference voltage from an associated reference cell while an electrical potential or other electrical characteristic of a sample fluid is being determined.

Claims20

Dependent claims

An oxidation-reduction potential test device, comprising:

a substrate;
a spacer layer interconnected to at least a portion of the substrate, wherein the spacer layer defines a sample chamber;
a test strip overlay, wherein the test strip overlay is interconnected to at least a portion of the spacer layer;
a first test lead supported by the substrate, the first test lead including:
a first area extending into the sample chamber;
a second area extending from the sample chamber to a readout region;
a second test lead supported by the substrate, the second test lead including:
a first area extending into the sample chamber;
a second area extending from the sample chamber to a readout region;
a reference cell;
a reference lead, including;
a first area in electrical contact with the reference cell;
a second area extending from the reference cell to a readout region;
a filter, wherein at least a portion of the filter overlaps at least a portion of each of the first area of the first test lead, the first area of the second test lead, and the first area of the reference lead;
and
a gel volume, wherein the gel volume includes a first layer in contact with the reference cell and a second layer over the first layer, and wherein the first layer differs in composition from the second layer.

13 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/866,503Filed 19 Apr 2013
Priority: 19 Apr 2012
Published: 24 Oct 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G01N 27/4168
Measuring a particular property of an electrolyte: oxidation-reduction potential, e.g. for chlorination of water
G01N 27/301
Electrodes, e.g. test electrodes; Half-cells: reference electrodes
G01N 27/406
Cells and electrode assemblies: cells and probes with solid electrolytes
G01N 33/48707
Of liquid biological material: by electrical means

Family

Application61/635,537Us provisional application · filed 19 Apr 2012
US 9,372,167 B2Related patent
US 2013/0277232 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key