US4375219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for detecting bioelectrical signals
Assignee: Individual
•
Filing: 1980-04-22
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Granted: 1983-03-01
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Expires: 2000-04-22
Abstract
Abstract An electrode arrangement for bioelectric signals, especially for EKG measurements comprises at least one electrode element in which the material in contact with the skin includes a p-n semiconductor. Preferably the test electrode and a reference or neutral electrode are joined in a single unit in relatively close proximity.
Inventors
- 👤 Walter Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:53
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/024; A61B5/02438; A61B5/24; A61B5/316; A61B5/318; A61B5/332; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0217; A61B5/25; A61B5/279; A61B5/28; A61B5/282
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
153 words
An electrode assembly for bioelectrical use comprising a support, and at least two skin-contacting electrodes on said support connectable to a circuit responsive to bioelectrical signals, said electrodes each comprising a pair of spacedly juxtaposed plates insulated from one another and an electrolyte disposed between said plates, said plates being composed of a metal selected from Group IIIA of the Periodic Chart of the Elements, the spacing between said plates being between 1 and 4 times the thickness of said plates, said electrodes being disposed in laterally spaced relationship on said support and being at least partially received in an insulating material and projecting therefrom with the insulating material therebetween so as to enable at least one plate of each of the electrodes to contact the skin simultaneously, the electrode spacing being about 4 to about 10 mm, said electrodes being provided with means for electrically connecting them to circuitry for bioelectrical use.
Claim 2
Dependent Claim
153 words
An electrode assembly for bioelectrical use comprising a support, and at least two skin-contacting electrodes on said support connectable to a circuit responsive to bioelectrical signals, said electrodes each comprising a pair of spacedly juxtaposed plates insulated from one another and an electrolyte disposed between said plates, said plates being composed of a metal selected from Group IIIA of the Periodic Chart of the Elements, the spacing between said plates being between 1 and 4 times the thickness of said plates, said electrodes being disposed in laterally spaced relationship on said support and being at least partially received in an insulating material and projecting therefrom with the insulating material therebetween so as to enable at least one plate of each of the electrodes to contact the skin simultaneously, the electrode spacing being about 4 to about 10 mm, said electrodes being provided with means for electrically connecting them to circuitry for bioelectrical use.
Claim 3
Dependent Claim
27 words
The electrode assembly defined in claim 1 wherein the edge of each electrode adjoining the plate thereof adapted to contact the skin is free from lateral confinement.
Claim 4
Dependent Claim
20 words
The electrode assembly defined in claim 1 wherein the surface of each electrode adapted to contact the skin is convex.
Claim 5
Dependent Claim
24 words
The electrode assembly defined in claim 1 wherein the plate of each electrode adapted to contact the skin is formed with a conductivity-promoting element.
Claim 6
Dependent Claim
14 words
The electrode assembly defined in claim 1 wherein said electrodes have coplanar skin-contacting surfaces.
Claim 7
Dependent Claim
13 words
The electrode assembly defined in claim 1 wherein said insulating material is flexible.
Claim 8
Dependent Claim
16 words
The electrode assembly defined in claim 1 wherein said electrodes are yieldably mounted on said support.
Claim 9
Dependent Claim
28 words
The electrode assembly defined in claim 1, further comprising means for mounting said electrodes movably on said support whereby the orientation of said electrodes conforms to skin contours.
Claim 10
Dependent Claim
36 words
The electrode assembly defined in claim 1, further comprising a neutral electrode mounted on said support and at least partly received on said insulating material and means for electrically connecting said neutral electrode to said circuitry.
Claim 11
Dependent Claim
21 words
The electrode assembly defined in claim 9 wherein said neutral electrode extends at least in part around the previously mentioned electrodes.
Claim 12
Dependent Claim
19 words
The electrode assembly defined in claim 9 wherein said electrodes are mounted on an insulating band forming said support.
Claim 13
Dependent Claim
19 words
The electrode assembly defined in claim 9 wherein said electrodes are disposed in the pattern of a geometric figure.
Claim 14
Dependent Claim
21 words
The electrode assembly defined in claim 1 wherein said support includes a band facilitating attachment of the assembly to the body.
Claim 15
Dependent Claim
31 words
The electrode assembly defined in claim 1 wherein said support comprises a housing containing said circuit and said means for electrically connecting said electrodes to said circuit is within the housing.
Claim 16
Dependent Claim
18 words
The electrode assembly defined in claim 14, further comprising means for removably mounting said electrodes on said housing.
Claim 17
Dependent Claim
16 words
The electrode assembly defined in claim 1 wherein an insulating partition is disposed between said electrodes.
Claim 18
Dependent Claim
16 words
The electrode assembly defined in claim 1 wherein said electrodes are disposed concentrically to one another.
Claim 19
Dependent Claim
25 words
The electrode assembly defined in claim 1 wherein at least one of said electrodes comprises a plurality of pins disposed around another of said electrodes.
Claim 20
Dependent Claim
30 words
The electrode assembly defined in claim 1 wherein each electrode includes a contact sleeve on said support and a contact pin slidably received in said contact sleeve on said support.
Claim 21
Dependent Claim
23 words
The electrode assembly defined in claim 1 wherein said support is a housing provided with a circuit function signal connected to said electrodes.
Claim 22
Dependent Claim
36 words
The electrode assembly defined in claim 1 wherein one of said electrodes is a central electrode and the other of said electrodes is a plurality of electrode elements connected together and spaced around said central electrode.
Claim 23
Dependent Claim
20 words
The electrode assembly defined in claim 1 wherein said support is a housing provided with a clock for time measurement.
Claim 24
Dependent Claim
22 words
The electrode assembly defined in claim 1, further comprising a clock connected to said support for the measurement and display of time.
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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) | 1986-02-28 | 1986-08-30 | 1987-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-28 | 1990-08-30 | 1991-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-28 | 1994-08-30 | 1995-03-01 | $7700.00 | Window Closed / Lapsed |