EP0320109A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improved sensing system
Assignee: Medisense Inc
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Filing: 1988-11-02
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Granted: —
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Expires: 2008-11-02
Abstract
Abstract An amperometric invasive probe electrode (1) for detecting an analyte comprises a fill of electrode material (6) contained in a generally cylindrical closed tube (4) having an aperture (7) protected by a membrane cover (8).
Inventors
- 👤 Mark David Wickham
- 👤 Elliot Verne Plotkin
- 👤 Thomas William Beck
- 👤 Louisa Agnes Wai-Lai Lock
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 10:16
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/14542; A61B5/14532; A61B5/1468; A61B5/1473; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6848
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
32 words
An amperometric invasive probe electrode for detecting an analyte, which electrode comprises a fill of electrode material contained in a generally cylindrical closed tube having an aperture protected by a membrane cover.
Claim 2
Dependent Claim
32 words
An amperometric invasive probe electrode for detecting an analyte, which electrode comprises a fill of electrode material contained in a generally cylindrical closed tube having an aperture protected by a membrane cover.
Claim 3
Dependent Claim
16 words
An invasive probe electrode according to claim 1, which is a needle capable of piercing skin.
Claim 4
Dependent Claim
19 words
An invasive probe electrode according to claim 1, together with a delivery system for indirect introduction of the electrode.
Claim 5
Dependent Claim
14 words
An invasive probe electrode according to claim 1 which is a single-use disposable electrode.
Claim 6
Dependent Claim
23 words
An invasive probe electrode according to claim 1 wherein the electrode material comprises a mediated enzyme system for amperometric detection of an analyte.
Claim 7
Dependent Claim
23 words
An invasive probe electrode according to claim 1, wherein the membrane cover comprises a semi-permeable, microporous membrane which is a phase inversion membrane.
Claim 8
Dependent Claim
18 words
An invasive probe electrode according to claim 1, wherein the membrane is cast in situ at the aperture.
Claim 9
Dependent Claim
22 words
An invasive probe electrode according to claim 1, wherein the membrane is cast separately as a tube and placed around the aperture.
Claim 10
Dependent Claim
43 words
A sensor system which comprises: (a) the amperometric invasive probe electrode of claim 1; (b) at least one further electrode comprising a reference electrode and optionally a counter electrode; and (c) electrical circuitry for connection between the electrodes to amperometrically detect the analyte.
Claim 11
Dependent Claim
18 words
A sensor system according to claim 9, wherein the reference electrode and optional counter electrode are external electrodes.
References Cited (Backward Citations)
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