Cilag International Gmbh

Lifescan Scotland Limited

Graeme J Webster

Steven John Setford

Marco Fabio Cardosi

Christopher Philip Leach

James T Moffat

Gavin Macfie

Lawrence Ritchie

Selwayan Saini

John Scott

Scott J Sloss

Russell Bain

An analytical test strip has mutually-insulated first and second electrodes arranged to define a sample-receiving chamber. Electrically-insulating layers are disposed over respective electrodes. First and second electrical contact pads are electrically connected to the first electrode, and a third pad to the second electrode. A first side of the test strip has a first electrically-insulating layer and the third pad, and a second side has the second electrically-insulating layer and the first and second pads. The third pad extends longitudinally from the sample-receiving chamber farther than does the first electrically-insulating layer. Methods for determining an analyte in a bodily-fluid sample and analytical test systems for use in the determination of an analyte in a bodily-fluid sample are also described.

Analytical test strip

An analytical test strip ('ATT') for use with a test meter includes a first insulating layer, with a first insulating layer upper surface, and a first electrically conductive layer ('ECL') disposed thereon. The first ECL includes a first electrode portion (&#x201c;EP&#x201d;) and an electrical contact pad in electrical communication with the first EP. The ATT also includes a patterned spacer layer disposed above the first ECL that includes (i) a distal portion defining a bodily fluid sample-receiving chamber therein that overlies the first EP and (ii) an insulating proximal portion with an upper surface having a second ECL disposed thereon. The second ECL includes an interlayer contact portion and an electrical contact pad. A third ECL of the ATT includes a second EP and a proximal portion that overlies the interlayer contact portion. The second EP is disposed overlying and exposed to the sample-receiving chamber in an opposing relationship to the first EP.

Co-facial analytical test strip with stacked unidirectional contact pads

A test meter for use with a dual-chamber, multi-analyte test strip includes a test strip receiving module and a signal processing module. The test strip receiving module has a first electrical connector configured for contacting a first analyte contact pad of a first working electrode of the test strip; a second electrical connector configured for contacting a second analyte contact pad of a second working electrode of the test strip, a third electrical connector configured for contacting a first counter/reference contact pad of a first counter/reference electrode layer of the test strip, and a fourth electrical connector configured for contacting a second counter/reference contact pad of a second counter/reference electrode layer of the test strip. The signal processing module is configured to receive a first signal via the first electrical connector and the third electrical connector and employ the first signal for the determination of a first analyte (such as glucose) in a bodily fluid sample (for example, whole blood sample) applied to the dual-chamber, multi-analyte test strip. Moreover, the signal processing module is also configured to receive a second signal via the second electrical connector and fourth electrical connector and employ the second signal for the determination of a second analyte (e.g., a ketone analyte) in the bodily fluid sample applied to the dual-chamber, multi-analyte test strip. Furthermore, the third and fourth electrical contacts provide contact in an opposing manner.

Test meter for use with a dual chamber, multi-analyte test strip with opposing electrodes

A dual chamber, multi-analyte test strip has a first insulating layer, a first electrically conductive layer, with a first working electrode, disposed on the first insulating layer and a first patterned spacer layer positioned above the first electrically conductive layer. The first patterned spacer layer has a first sample-receiving chamber, with first and second end openings, defined therein that overlies the first working electrode. The test strip also includes a first counter/reference electrode layer that is exposed to the first sample receiving chamber and is in an opposing relationship to the first working electrode. The test strip further includes a counter/reference insulating layer disposed over the first counter/reference electrode layer and a second counter/reference electrode layer disposed on the counter/reference substrate. Also included in the test strip is a second patterned spacer layer that is positioned above the second counter/reference electrode layer. The second patterned spacer layer has a second sample-receiving chamber, with first and second end openings, defined therein. The test strip additionally has a second electrically conductive layer, with a second working electrode, disposed above the second patterned spacer layer, a second insulating layer disposed above the second electrically conductive layer, a first analyte reagent layer disposed on the first working electrode within the first sample-receiving chamber; and a second analyte reagent layer disposed on the second working electrode within the second sample-receiving chamber. The second counter/reference electrode layer is exposed to the second sample receiving chamber and is in an opposing relationship to the second working electrode.

Dual chamber, multi-analyte test strip with opposing electrodes

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Inverness, United Kingdom

Graeme J Webster