Patent US4781798A successfully refreshed from Google Patents.
US4781798A
Expired / Lapsed
US
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Transparent multi-oxygen sensor array and method of using same
Assignee: University of California, San Diego
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Filing: 1987-05-08
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Granted: 1988-11-01
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Expires: 2007-05-08
Abstract
Abstract A transparent electrochemical oxygen sensor for simultaneously determining oxygen concentration at different locations on a biological surface that is capable of being positioned over the region sought to be measured and includes an array of independently functioning oxygen-sensitive electrodes, a counter electrode, and a reference electrode.
Inventors
- 👤 David A. Gough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:49
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
155 words
A transparent electrochemical sensor for determining the concentration of a gas at or near biological surfaces comprising: a transparent support base; a connecting strip comprising a plurality of respective leads attached to an edge of said base; a plurality of sensing electrodes, each of 20μ to 100μ diameter, arrayed on a surface of said support base at a spacing of 40μ to 200μ for simultaneously sensing said gas at different regions at or near said biological surface, each of said sensing electrode being independently connected to a respective one of said leads and electrically insulated from all of the others of said sensing electrodes; a reference electrode on said surfce and connected to a respective one of said leads; a counter electrode on said surface and connected to a respective one of said leads; and an electrolyte solution on said surface and in contact with said sensing electrodes, said reference electrode and said counter electrode.
Claim 2
Dependent Claim
155 words
A transparent electrochemical sensor for determining the concentration of a gas at or near biological surfaces comprising: a transparent support base; a connecting strip comprising a plurality of respective leads attached to an edge of said base; a plurality of sensing electrodes, each of 20μ to 100μ diameter, arrayed on a surface of said support base at a spacing of 40μ to 200μ for simultaneously sensing said gas at different regions at or near said biological surface, each of said sensing electrode being independently connected to a respective one of said leads and electrically insulated from all of the others of said sensing electrodes; a reference electrode on said surfce and connected to a respective one of said leads; a counter electrode on said surface and connected to a respective one of said leads; and an electrolyte solution on said surface and in contact with said sensing electrodes, said reference electrode and said counter electrode.
Claim 3
Dependent Claim
14 words
A transparent electrochemical sensor as described in claim 1 wherein said gas is oxygen.
Claim 4
Dependent Claim
18 words
A transparent electrochemical sensor as described in claim 1 wherein said transparent support base is made of glass.
Claim 5
Dependent Claim
25 words
A transparent electrochemical sensor as described in claim 1 wherein said transparent support base is made of a flexible or rigid halogenated hydrocarbon polymer film.
Claim 6
Dependent Claim
19 words
A transparent electrochemical sensor as described in claim 1 wherein said sensing electrodes are made of a noble metal.
Claim 7
Dependent Claim
23 words
A transparent electrochemical sensor as described in claim 1 wherein said sensing electrodes are situated on said support base in a two-dimensional array.
Claim 8
Dependent Claim
20 words
A transparent electrochemical sensor as described in claim 6 wherein said two-dimensional array comprises between eight to thirty-two sensing electrodes.
Claim 9
Dependent Claim
18 words
A transparent electrochemical sensor as described in claim 1 wherein said sensing electrodes are coated with insulating material.
Claim 10
Dependent Claim
24 words
A transparent electrochemical sensor as described in claim 1 wherein said sensor is covered with a porous oxygen-permeable material which has good optical properties.
Claim 11
Dependent Claim
16 words
A transparent electrochemical sensor as described in claim 9 wherein said porous oxygen-permeable material is transparent.
Claim 12
Dependent Claim
27 words
A transparent electrochemical sensor as described in claim 10 wherein said porous oxygen-permeable material is selected from the group consisting of polymers of poly(dimethylsiloxane-carbonate), polyethylene or tetrafluoroethylene.
Claim 13
Dependent Claim
18 words
A transparent electrochemical sensor as described in claim 9 wherein said porous oxygen-permeable material encloses an electrolytic solution.
Claim 14
Dependent Claim
20 words
A transparent electrochemical sensor as described in claim 1 wherein said reference electrode is composed of silver and silver chloride.
Claim 15
Dependent Claim
23 words
A transparent electrochemical sensor as described in claim 1 wherein said reference electrode is situated between said sensing electrodes and said counter electrode.
Claim 16
Dependent Claim
19 words
A transparent electrochemical sensor as described in claim 1 wherein said counter electrode is composed of a noble metal.
Claim 17
Independent Claim
140 words
A method of meauring the concentration of a gas on biological surfaces comprising: providing a transparent electrochemical sensor having a transparent support base, a connecting strip on said base with a plurality of respective leads attached to an edge of said base, a plurality of sensing electrodes each of 20μ to 100μ diameter on a surface of said base at a spacing of 40μ to 200μ, each of said sensing electrodes being independently connected to a respective one of said leads and electrically insulated from all of the others of said sensing electrodes, said electrodes including a reference electrode and a counter electrode, and an electrolyte solution on said base and contacting said electrodes; contacting said biological surface with said transparent support base; and detecting said gas at different regions of said biological surface contacted by said transparent support base.
Claim 18
Independent Claim
140 words
A method of meauring the concentration of a gas on biological surfaces comprising: providing a transparent electrochemical sensor having a transparent support base, a connecting strip on said base with a plurality of respective leads attached to an edge of said base, a plurality of sensing electrodes each of 20μ to 100μ diameter on a surface of said base at a spacing of 40μ to 200μ, each of said sensing electrodes being independently connected to a respective one of said leads and electrically insulated from all of the others of said sensing electrodes, said electrodes including a reference electrode and a counter electrode, and an electrolyte solution on said base and contacting said electrodes; contacting said biological surface with said transparent support base; and detecting said gas at different regions of said biological surface contacted by said transparent support base.
Claim 19
Dependent Claim
12 words
A method as described in claim 16 wherein said gas is oxygen.
Claim 20
Dependent Claim
16 words
A method as described in claim 16 wherein said transparent support base is made of glass.
Claim 21
Dependent Claim
23 words
A method as described in claim 16 wherein said transparent support base is made of a flexible or rigid halogenated hydrocarbon polymer film.
Claim 22
Dependent Claim
17 words
A method as described in claim 16 wherein said sensing electrodes are made of a noble metal.
Claim 23
Dependent Claim
21 words
A method as described in claim 16 wherein said sensing electrodes are situated on said support surface in a two-dimensional array.
Claim 24
Dependent Claim
18 words
A method as described in claim 21 wherein said two-dimensional array comprises between eight to thirty-two measuring electrodes.
Claim 25
Dependent Claim
16 words
A method as described in claim 16 wherein said sensing electrodes are coated with insulating material.
Claim 26
Dependent Claim
23 words
A method as described in claim 16 wherein said transparent electrochemical sensor is covered with porous oxygen-permeable material which has good optical properties.
Claim 27
Dependent Claim
14 words
A method as described in claim 24 wherein said porous oxygen-permeable material is transparent.
Claim 28
Dependent Claim
26 words
A method as described in claim 25 wherein said porous oxygen-permeable material is selected from the group consisting of polymers of poly (dimethylsiloxane-carbonate), polyethylene or tetrafluoroethylene.
Claim 29
Dependent Claim
16 words
A method as described in claim 16 wherein said porous oxygen-permeable material encloses an electrolytic solution.
Claim 30
Dependent Claim
18 words
A method as described in claim 18 wherein said reference electrode is composed of silver and silver chloride.
Claim 31
Dependent Claim
21 words
A method as described in claim 16 wherein said reference electrode is situated between said sensing electrodes and said counter electrode.
Claim 32
Dependent Claim
17 words
A method as described in claim 16 wherein said counter electrode is composed of a noble metal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |