Electrochemical-based analytical test strip with intersecting sample-receiving chambers

• US 8,877,023 B2
• Filed: 06/21/2012
• Issued: 11/04/2014
• Est. Priority Date: 06/21/2012
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: LifeScan Scotland Limited (Johnson & Johnson)
• Inventors: Whyte, Lynsey, Sloss, Scott, Whitehead, Neil, McColl, David, Smith, Antony
• Primary Examiner(s): DIETERLE, JENNIFER M
• Application Number:
  US13/529,890
• Publication Number:
  US 20130341208A1
• Time in Patent Office: 866 Days
• Field of Search: 20440301-40315, 422/68.1, 422/82.01, 435/287.1
• US Class Current: 204/403.1
• CPC Class Codes: C12Q 1/004 mediator-assisted
• CPC Class Codes: C12Q 1/006 for glucose
• CPC Class Codes: G01N 27/327 Biochemical electrodes , e.g. electrical or mechanical details for in vitro measurements

Abstract

An electrochemical-based analytical test strip for the determination of an analyte (such as glucose) in a bodily fluid sample (for example, a whole blood sample) and/or a characteristic of the bodily fluid sample (for example, hematocrit) includes a first sample-receiving chamber with first and second sample-application openings, and first and second electrodes. The first and second electrodes are disposed in the first sample-receiving chamber between the first and second sample-application openings. The electrochemical-based analytical test strip also includes a second sample-receiving chamber and a plurality of electrodes disposed in the second sample-receiving chamber. In addition, the second sample-receiving chamber intersects the first sample-receiving chamber between the first and second electrodes, thereby defining a chamber intersection.

Claims

1. An electrochemical-based analytical test strip for the determination of an analyte in a bodily fluid sample, the electrochemical-based analytical test strip comprising:

a first sample-receiving chamber with;

a first sample-application opening; and

a second sample-application opening;

a first electrode disposed in the first sample-receiving chamber between the first sample-application opening and the second sample-application opening;

a second electrode disposed in the first sample-receiving chamber between the first sample-application opening and the second sample-application opening;

a second sample-receiving chamber that intersects the first sample-receiving chamber between the first electrode and the second electrode, thereby defining a chamber intersection, and

at least a third electrode disposed in the second sample-receiving chamber, including a first working electrode, a second working electrode and a counter/reference electrode.

2. The electrochemical-based analytical test strip of claim 1 wherein the first working electrode, a second working electrode and a counter/reference electrode are configured for the determination of an analyte of a bodily fluid sample in the second sample-receiving chamber.