Patent EP0127958B1 successfully refreshed from Google Patents.
EP0127958B1
Expired / Lapsed
EP
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Sensor electrode systems
Assignee: Medisense Inc
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Filing: 1984-05-08
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Granted: 1992-03-11
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Expires: 2004-05-08
Abstract
No abstract record available.
Inventors
- 👤 Irving John Higgins
- 👤 James Michael Mccann
- 👤 Graham Davis
- 👤 Hugh Allen Oliver Hill
- 👤 Ron Zwanziger
- 👤 Bernhard Ludwig Treidl
- 👤 Nigel Norman Birket
- 👤 Elliot Verne Plotkin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 22:35
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/1468; A61B5/1486; A61B5/14865; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6848; C; C12; C12Q; C12Q1/00; C12Q1/001; C12Q1/004
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
135 words
A sensor electrode system of the kind for use in detecting, measuring or monitoring a component in a liquid mixture, by monitoring the flow of current when an oxidoreductase enzyme catalyses a redox reaction of a substrate, and a mediator compound transfers electrons between an electrode and the catalytically active oxidoreductase enzyme; characterised in that the sensor electrode system comprises a throw away strip test electrode carrier carrying an area of working electrode material comprising the enzyme and the mediator compound, the area being adjacent to but non-contiguous with an area of reference electrode material, both electrode areas being of small dimension, and extending as or supported on the electrode carrier formed as an elongate member to facilitate manipulation before or during contact with live tissue or with a small withdrawn sample of body fluid.
Claim 2
Dependent Claim
135 words
A sensor electrode system of the kind for use in detecting, measuring or monitoring a component in a liquid mixture, by monitoring the flow of current when an oxidoreductase enzyme catalyses a redox reaction of a substrate, and a mediator compound transfers electrons between an electrode and the catalytically active oxidoreductase enzyme; characterised in that the sensor electrode system comprises a throw away strip test electrode carrier carrying an area of working electrode material comprising the enzyme and the mediator compound, the area being adjacent to but non-contiguous with an area of reference electrode material, both electrode areas being of small dimension, and extending as or supported on the electrode carrier formed as an elongate member to facilitate manipulation before or during contact with live tissue or with a small withdrawn sample of body fluid.
Claim 3
Dependent Claim
101 words
A sensor electrode system according to claim 1. comprising the elongate support member; on a surface thereof the area of the working electrode material being of electrically conductive material comprising at least at an outer surface thereof the combination of the enzyme and the mediator compound; on the surface of the elongate member, the area of the reference electrode; and separate electrical connection to each electrode for attachment to a read-out means denoting presence, amount, or monitored level of the said one or more selected components in a liquid medium with which the support member is contacted to contact both electrodes.
Claim 4
Dependent Claim
112 words
A sensor electrode system according to claim 2, which comprises (a) a flat first electrode area of known area small enough to be completely coverable by the smear of blood produced from a non-expressed drop of blood generated from a needle-prick at a bodily extremity, and (b) a reference electrode area on the save surface separate from but sufficiently close to the sensitive electrode area that the said blood smear also reaches the reference electrode to establish electrical communication and (c) separate conductive elements extending along The same surface of the elongate support member, communicating one with each electrode for connection to signal read-out means attachable to one end of the member.
Claim 5
Dependent Claim
20 words
A sensor electrode system according claim 1, 2 or 3 in which the area of working electrode material is square.
Claim 6
Dependent Claim
27 words
A sensor electrode system according to any of claims 1 to 4, in which the area of working electrode material is less than 25 mm 2 .
Claim 7
Dependent Claim
17 words
A sensor electrode system according to any preceding claim, in which the reference electrode is silver/silver choride.
Claim 8
Dependent Claim
30 words
A sensor electrode system according to claim 1, wherein the working electrode and the reference electrode are carried on the same face of an elongate non-conductive carrier of rectangular cross-section.
Claim 9
Dependent Claim
41 words
A sensor electrode system according to claim 7, in which the area of the working electrode material is towards one end of the surface of the elongate member, and the area of the reference electrode is also towards the said end.
Claim 10
Dependent Claim
30 words
A sensor electrode system according to any preceeding claim, wherein the working electrode and the reference electrode are carried on opposite faces of an elongate non-conductive carrier of rectangular cross-section.
Claim 11
Dependent Claim
17 words
A sensor electrode system according to any preceding claim, in which the enzyme is a glucose enzyme.
Claim 12
Dependent Claim
16 words
A sensor electrode system according to any preceding claim, in which the mediator is a ferrocene.
References Cited (Backward Citations)
No citation records indexed.
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