EP0964059A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Biosensor

Assignee: Panasonic Corp

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Filing: 1999-05-27

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Granted: —

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Expires: 2019-05-27

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Abstract

Abstract The present invention relates to a biosensor comprising a working electrode base plate 11, a counter electrode base plate 14 and a reagent layer containing at least an enzyme and an electron mediator, wherein a working electrode 12 disposed on the working electrode base plate and a counter electrode 15 disposed on the counter electrode base plate are positioned so as to mutually face and a terminal of a measuring device can be brought in contact with terminals 13, 16 of both electrodes from through-holes 25, 24. Such a biosensor can produce highly reliable and accurate measuring results with only a small amount of a sample.

Inventors

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

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-10-30 01:50

CPC Classifications

C; C12; C12Q; C12Q1/00; C12Q1/001

Claims Analysis

Total Claims: 6

Claim 1

Independent Claim 61 words

A biosensor comprising a working electrode base plate, a counter electrode base plate and a reagent layer containing at least an enzyme and an electron mediator, wherein a working electrode disposed on said working electrode base plate and a counter electrode disposed on said counter electrode base plate are positioned so as to mutually face with a space between the electrodes.

Claim 2

Dependent Claim 72 words

A biosensor comprising a working electrode base plate, a counter electrode base plate, a spacer member placed between said both base plates and a reagent layer containing at least an enzyme and an electron mediator, wherein a working electrode disposed on said working electrode base plate and a counter electrode disposed on said counter electrode base plate are positioned so as to mutually face with a spacer member placed between the electrodes.

Claim 3

Dependent Claim 39 words

The biosensor in accordance with claim 1 or 2, wherein at least one of said working electrode base plate and said counter electrode base plate has a through-hole which exposes an electrode terminal of the other plate to outside.

Claim 4

Dependent Claim 81 words

The biosensor in accordance with claim 1 or 2, wherein one of said working electrode base plate and said counter electrode base plate has a cut-away portion which exposes an electrode terminal of the other base plate to outside and a lead connected to the electrode on a surface of the base plate having a cut-away portion extends, via a side surface of the base plate having a cut-away portion, to the back of the surface where the lead is connected.

Claim 5

Dependent Claim 80 words

The biosensor in accordance with claim 1 or 2, wherein one of said working electrode base plate and said counter electrode base plate has a through-hole filled with a conductive material and a cut-away portion which exposes an electrode terminal of the other plate to outside and a lead connected to the electrode on a surface of the base plate having a cut-away portion extends, via said conductive material, to the back of the surface where the lead is connected.

Claim 6

Dependent Claim 66 words

A biosensor comprising an insulating plate provided with a groove on its surface, a cover member joined to said insulating base plate to form a space for accommodating a sample in said groove, a working electrode and a counter electrode disposed so as to mutually face in said groove and a reagent layer containing at least an enzyme and an electron mediator disposed in said groove.

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