US4907601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrotherapy arrangement
Assignee: Etama AG
•
Filing: 1988-09-29
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Granted: 1990-03-13
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Expires: 2008-09-29
Abstract
Abstract An electrotherapy arrangement comprises a carrier centrally carrying an inner electrode portion constituting one voltage pole around which outer electrode portions constituting the other voltage pole concentrally lie, and means for applying voltage alternately to the outer portions, comprising a current source and a switching device, whereby the nature of the current and the switching procedures can be adjusted as desired.
Inventors
- 👤 Kuno Frick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:54
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/36014; A61N1/36021; A61N1/02; A61N1/04; A61N1/0404; A61N1/0408; A61N1/0456; A61N1/0472; A61N1/0492
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
130 words
An electrotherapy arrangement comprising: a current source; a switching means connected thereto; a carrier bearing an electrode array adapted to be connected to the switching means, the electrode array including at least first, second and third outer electrode portions constituting a pole of the array and arranged substantially in a circle and an inner electrode portion constituting the other pole of the electrode array and arranged substantially at the center of the circle, the switching means being operable to apply voltage to the outer electrode portions with one polarity alternately with a given frequency of switching-over from one said electrode portion to another while the inner electrode portion carries the other polarity; and means for varying the voltage of the current source and the switching-over frequency of the switching means.
Claim 2
Dependent Claim
130 words
An electrotherapy arrangement comprising: a current source; a switching means connected thereto; a carrier bearing an electrode array adapted to be connected to the switching means, the electrode array including at least first, second and third outer electrode portions constituting a pole of the array and arranged substantially in a circle and an inner electrode portion constituting the other pole of the electrode array and arranged substantially at the center of the circle, the switching means being operable to apply voltage to the outer electrode portions with one polarity alternately with a given frequency of switching-over from one said electrode portion to another while the inner electrode portion carries the other polarity; and means for varying the voltage of the current source and the switching-over frequency of the switching means.
Claim 3
Dependent Claim
31 words
An arrangement as set forth in claim 1 wherein said switching means is adapted to apply voltage of negative polarity to the outer electrode portions, relative to the inner electrode portion.
Claim 4
Dependent Claim
31 words
An arrangement as set forth in claim 1 wherein said switching means is adapted to apply voltage to the outer electrode portions in succession selectively in the clockwise and counter-clockwise directions.
Claim 5
Dependent Claim
48 words
An arrangement as set forth in claim 1 wherein said switching means is adapted to apply voltage to the outer electrode portions, in such a way that the sequence of applying voltage to the outer electrode portions is automatically reversed when a specified outer electrode portion is reached.
Claim 6
Dependent Claim
21 words
An arrangement as set forth in claim 1 including means for adjusting the switching-over frequency in accordance with a predetermined program.
Claim 7
Dependent Claim
17 words
An arrangement as set forth in claim 1 and including a display means for the switching operation.
Claim 8
Dependent Claim
15 words
An arrangement as set forth in claim 6 wherein said display means is an LED-display.
Claim 9
Dependent Claim
20 words
An arrangement as set forth in claim 1 wherein the outer and inner electrode portions are of different surface measurements.
Claim 10
Dependent Claim
23 words
An arrangement as set forth in claim 8 wherein the spacing between the inner and the outer electrode portions is about 2 cm.
Claim 11
Dependent Claim
15 words
An arrangement as set forth in claim 1 wherein the electrode portions substantially comprise gold.
Claim 12
Dependent Claim
16 words
An arrangement as set forth in claim 1 wherein the electrode portions substantially comprise gold alloy.
Claim 13
Dependent Claim
19 words
An arrangement as set forth in claim 1 wherein the electrode portions are curved convexly away from the carrier.
Claim 14
Dependent Claim
41 words
An arrangement, as set forth in claim 1, further comprising a connecting cable electrically interconnecting said electrode portions and said switching means, and wherein the electrode portions are connected to said connecting cable via electrical conductor tracks integrated in the carrier.
Claim 15
Dependent Claim
14 words
An arrangement as set forth in claim 13 wherein the conductor tracks are printed.
Claim 16
Dependent Claim
17 words
An arrangement as set forth in claim 1 wherein the carrier is made from transparent plastic material.
Claim 17
Dependent Claim
15 words
An arrangement as set forth in claim 15 wherein said plastic material is acrylic glass.
Claim 18
Dependent Claim
22 words
An arrangement, as set forth in claim 1, further comprising means (7a) for connecting the switching means to another said electrode array.
Claim 19
Dependent Claim
35 words
An arrangement as set forth in claim 1 including means for automatically altering the variation in the voltage of the current source and the switching-over frequency of the switching means in accordance with a program.
Claim 20
Dependent Claim
33 words
An arrangement as set forth in claim 1 including means for adjusting at least the minimum and maximum voltage values of the current source and a means for reading off the respective values.
Claim 21
Dependent Claim
16 words
An arrangement as set forth in claim 19 wherein said reading-off means comprises a measuring device.
Claim 22
Dependent Claim
15 words
An arrangement as set forth in claim 19 wherein said reading-off means comprises an oscilloscope.
Claim 23
Dependent Claim
42 words
An arrangement as set forth in claim 1 wherein said switching-over frequency of the switching means is variable between 0.5 and 20 Hertz and the current strength produced by the current source is in the range of from 1 to 1000 μA.
Claim 24
Dependent Claim
28 words
An arrangement as set forth in claim 1 wherein the voltage of the current source is adjustable in a range of from about 1.2 V to 7.0 V.
Claim 25
Dependent Claim
23 words
An arrangement as set forth in claim 1 including a casing in which the switching means and the current source are disposed jointly.
Claim 26
Dependent Claim
23 words
An arrangement as set forth in claim 1, wherein the voltage of the current source is adjustable from 1.7 V to 1.8 V.
References Cited (Backward Citations)
US3612061A
Cited
DE2437346A1
Cited
US4062364A
Cited
EP0029245A1
Cited
DE3437837A1
Cited
EP0145176B1
Cited
US4558704A
Cited
EP0257989A2
Cited
EP0268701A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |