EP0127958B2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Sensor electrode systems
Assignee: Medisense Inc
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Filing: 1984-05-08
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Granted: 1996-04-10
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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
2026-11-07 10:10
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: 8
Claim 1
Independent Claim
161 words
A sensor electrode system of the kind for use in measuring or monitoring glucose in a liquid mixture by monitoring the flow of current when a glucose oxidoreductase enzyme catalyses a redox reaction of glucose, 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 carring an area of working electrode material comprising the glucose enzyme and ferrocene or a ferrocene derivative as 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formed as an elongate member to facilitate manipulation before or during contact with live tissue or with a small withdrawn sample of body fluid, and wherein said working electrode material is a single layer admixture of said glucose enzyme, said ferrocene mediator and conductive carbon
Claim 2
Dependent Claim
43 words
A sensor electrode system according to claim 1. comprising separate electrical connection to each electrode for attachment to a read-out means denoting amount, or monitored level of glucose in a liquid medium with which the support member is contacted to contact both electrodes.
Claim 3
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 same 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 4
Dependent Claim
21 words
A sensor electrode system according to claim 1, 2 or 3 in which the area of working electrode material is square.
Claim 5
Dependent Claim
25 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.
Claim 6
Dependent Claim
17 words
A sensor electrode system according to any preceding claim, in which the reference electrode is silver/silver choride.
Claim 7
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 8
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.
References Cited (Backward Citations)
No citation records indexed.
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