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EP0965301A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Electrode probe and body fluid examination equipment including the same

Assignee: Panasonic Holdings Corp
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Filing: 1999-06-04
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Granted: —
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Expires: 2019-06-04
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Abstract

Abstract Disclosed is an electrode probe (1) and body fluid examination equipment enabling examination of a trace amount of body fluid. The electrode probe (1) comprises an insulating needle member (2,12), a working electrode lead (3) disposed in the needle member (2,12), a working electrode (13a) whose lead is protruding outside from the needle member (2,12), a counter electrode (15) disposed on the surface of the needle member (2,12), a lead (14) connected to the counter electrode, and a reagent layer (17) disposed in contact with or in the vicinity of the working and counter electrodes of the electrode system. When a trace amount of body fluid leaking on the skin surface is brought into contact with the reagent layer (17), the reagent layer dissolves which results in electron transfer whereby information about the concentration of analyte in the body fluid can be obtained from the electrode system.

Inventors

  • 👤 Motokazu Watanabe
  • 👤 Shin Ikeda
  • 👤 Toshihiko Yoshioka
  • 👤 Shiro Nankai

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 10:47
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/1468; A61B5/1486; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6848

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 42 words
An electrode probe comprising an insulating needle member, an electrode system including a counter electrode and a working electrode disposed on the surface of said needle member, a lead connected to said counter electrode, and a lead connected to said working electrode.
Claim 2
Dependent Claim 59 words
The electrode probe in accordance with claim 1, wherein said lead connected to said working electrode is made of a linear conductive member which is finer than said needle member, said lead being partially embedded in said needle member and said conductive member protruding from the tip end of said needle member which protruding portion forms said working electrode.
Claim 3
Dependent Claim 32 words
The electrode probe in accordance with claim 2, further comprising a reagent layer formed on the surface of said needle member in contact with or in the vicinity of said electrode system.
Claim 4
Dependent Claim 32 words
The electrode probe in accordance with claim 1, further comprising a pit formed at the tip end of said needle member, said pit being disposed with said working electrode and counter electrode.
Claim 5
Dependent Claim 63 words
The electrode probe in accordance with claim 4, wherein said lead connected to said working electrode is made of a linear conductive member which is finer than said needle member, said lead being partially embedded in said needle member and said conductive member protruding inside said pit present at the tip end of said needle member, which protruding portion forms said working electrode.
Claim 6
Dependent Claim 19 words
The electrode probe in accordance with claim 4 or 5, further comprising a reagent layer disposed in said pit.
Claim 7
Dependent Claim 23 words
The electrode probe in accordance with any one of claims 1 to 6, further comprising a third electrode and a lead connected thereto.
Claim 8
Dependent Claim 66 words
Body fluid examination equipment comprising the electrode probe in accordance with any one of claims 1 to 7, means for applying a voltage across the electrode system of said electrode probe and obtaining analyte information from said electrode system in the form of an electric signal, means for determining a measurement value of an analyte based on said electric signal and a body fluid leaking instrument.
Claim 9
Dependent Claim 21 words
The body fluid examination equipment in accordance with claim 8, further comprising display means for displaying the measurement value as determined.

References Cited (Backward Citations)

US4545382A Cited
EP0351891A2 Cited

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