US4753247A
Expired / Lapsed
US
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Method and apparatus for monitoring redox reactions
Assignee: LAISTER PETER
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Filing: 1985-08-08
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Granted: 1988-06-28
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Expires: 2005-08-08
Abstract
Abstract A method of monitoring changes of redox activity in a medium in vitro or in vivo which comprises placing into the medium a probe having a non-metallic surface exposed to said medium and whose surface admittance varies with the redox activity in said medium, and detecting the resulting changes in the surface admittance of said probe. The method is particularly suitable for predicting or detecting the onset of ovulation in female mammals.
Inventors
- 👤 Vaclav Kirsner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:52
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/0012
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
56 words
A method of monitoring changes of redox activity in a medium in vitro or in vivo which comprises placing into said medium a probe having a plurality of non-metallic electrodes exposed to said medium and whose surface admittance varies inversely with the reductive activity in said medium, and detecting the resulting changes in said surface admittance.
Claim 2
Independent Claim
56 words
A method of monitoring changes of redox activity in a medium in vitro or in vivo which comprises placing into said medium a probe having a plurality of non-metallic electrodes exposed to said medium and whose surface admittance varies inversely with the reductive activity in said medium, and detecting the resulting changes in said surface admittance.
Claim 3
Dependent Claim
36 words
A method according to claim 1 wherein changes in surface admittance are detected by applying a time-varying electrical potential of low amplitude and high frequency to said electrodes and monitoring the resultant current between the electrodes.
Claim 4
Dependent Claim
54 words
Apparatus for monitoring changes of redox activity in vitro or in vivo which comprises a probe introducible into a medium, said probe having a plurality of electrodes composed of non-metallic material and whose admittance varies inversely with the reductive activity in said medium, and means for detecting andy resulting changes in said surface admittance.
Claim 5
Dependent Claim
54 words
Apparatus for monitoring changes of redox activity in vitro or in vivo which comprises a probe introducible into a medium, said probe having a plurality of electrodes composed of non-metallic material and whose admittance varies inversely with the reductive activity in said medium, and means for detecting andy resulting changes in said surface admittance.
Claim 6
Dependent Claim
16 words
Apparatus according to claim 3 wherein each of said electrodes is composed of substantially identical material.
Claim 7
Dependent Claim
11 words
Apparatus according to claim 3 wherein said probe includes two electrodes.
Claim 8
Dependent Claim
15 words
Apparatus according to claim 3 wherein said electrodes are composed of a non-metallic semiconducting material.
Claim 9
Dependent Claim
13 words
Apparatus according to claim 3 wherein said electrodes are composed of vitreous carbon.
Claim 10
Dependent Claim
40 words
Apparatus according to claim 3 wherein said means for detecting changes in surface admittance includes means for applying a time-varying electrical potential of low amplitude and high frequency to said electrodes and means for monitoring resultant current between said electrodes.
Claim 11
Dependent Claim
59 words
Apparatus according to claim 3 in which said probe is insertable into the vagina of a mammal to be examined, and including means for measuring the surface admittance of the probe when in situ in the vagina, said means for measuring coupled to said means for detecting, whereby said apparatus functions as an ovulation predictor and/or detector for mammals.
Claim 12
Dependent Claim
82 words
Apparatus according to claim 9 wherein said probe comprises an elongated element insertable into the vagina and having two of said electrodes, said probe further comprising means disposed between said to electrodes for electrically insulating said electrodes from each other, said means for detecting including means for applying a time-varying potential across said electrodes when in situ in the vagina, and said apparatus including means coupled to said means for measuring for providing an indication of the surface admittance of said electrodes.
Claim 13
Dependent Claim
39 words
Apparatus according to claim 10 wherein said means for detecting any resultant changes in surface admittance comprises means for detecting current flow between said electrodes resulting from said time-varying potential across electrodes, and means for analyzing said current flow.
Claim 14
Dependent Claim
30 words
Apparatus according to claim 11 further including a visual display device coupled to said means for measuring whereon results are displayed visually as an indication of the onset of ovulation.
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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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |