US4023574A
Expired / Lapsed
US
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Electrostimulation method and apparatus
Assignee: Siemens AG
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Filing: 1975-10-20
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Granted: 1977-05-17
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Expires: 1995-10-20
Abstract
Abstract Three separate pairs of electrodes are attached to a body part to be treated, spaced apart around said part of the body. A primary alternating electrical current having a primary frequency of between 100 Hz and 100,000 Hz is passed between one of the electrode pairs. A similar second alternating electrical current having a secondary frequency in the same range as the primary frequency but differing by between 50 Hz and 100 Hz from the primary frequency is passed between another of the pairs of electrodes. A tertiary alternating current is passed between the third pair of electrodes and has a tertiary frequency differing by at most 1 Hz from the frequency of either the primary current, the secondary current, or the arithmetic means of the frequency of these two currents.
Inventors
- 👤 Hans Nemec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:36
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/323
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
138 words
A method of treating a human or animal body comprising the steps of: passing between two separate primary locations through a given portion of said body a primary alternating electrical current having a primary frequency of between 1000 Hz and 100,000 Hz; passing between two secondary locations spaced on said body from said primary locations a second alternating electrical current through said portion, said secondary current having a secondary frequency differing from said primary frequency by at most 100Hz, whereby said primary current and said secondary current may beat together at a beat frequency; and passing between two separate tertiary locations spaced on said body from said primary and secondary locations and through said portion a tertiary alternating current having a tertiary frequency differing from one of said primary, secondary and beat frequencies by at most 1 Hz.
Claim 2
Independent Claim
138 words
A method of treating a human or animal body comprising the steps of: passing between two separate primary locations through a given portion of said body a primary alternating electrical current having a primary frequency of between 1000 Hz and 100,000 Hz; passing between two secondary locations spaced on said body from said primary locations a second alternating electrical current through said portion, said secondary current having a secondary frequency differing from said primary frequency by at most 100Hz, whereby said primary current and said secondary current may beat together at a beat frequency; and passing between two separate tertiary locations spaced on said body from said primary and secondary locations and through said portion a tertiary alternating current having a tertiary frequency differing from one of said primary, secondary and beat frequencies by at most 1 Hz.
Claim 3
Dependent Claim
33 words
The method defined in claim 1 wherein said primary frequency lies between 3950 Hz and 4050 Hz and said secondary frequency is between 50 Hz and 100 Hz greater than said primary frequency.
Claim 4
Independent Claim
148 words
An apparatus for treating a human or animal body, said apparatus comprising: independent primary, secondary, and tertiary pairs of electrodes, each electrode being applicable to a separate body location with said pairs of electrodes spanning a given body portion; oscillator means for passing a primary alternating current having a primary frequency of between 1000 Hz and 100,000 Hz between said electrodes of said primary pair through said portion; oscillator means for passing a secondary alternating electrical current having a secondary frequency differing from said primary frequency by at most 100Hz between said electrodes of said secondary pair through said portion; and oscillator means for passing through said portion between said electrodes of said tertiary pair a tertiary alternating current having a tertiary frequency differing by at most 1 Hz from said primary frequency, from said secondary frequency, or from the arithmetic mean of said primary and secondary frequencies.
Claim 5
Independent Claim
148 words
An apparatus for treating a human or animal body, said apparatus comprising: independent primary, secondary, and tertiary pairs of electrodes, each electrode being applicable to a separate body location with said pairs of electrodes spanning a given body portion; oscillator means for passing a primary alternating current having a primary frequency of between 1000 Hz and 100,000 Hz between said electrodes of said primary pair through said portion; oscillator means for passing a secondary alternating electrical current having a secondary frequency differing from said primary frequency by at most 100Hz between said electrodes of said secondary pair through said portion; and oscillator means for passing through said portion between said electrodes of said tertiary pair a tertiary alternating current having a tertiary frequency differing by at most 1 Hz from said primary frequency, from said secondary frequency, or from the arithmetic mean of said primary and secondary frequencies.
Claim 6
Dependent Claim
21 words
The apparatus defined in claim 3 wherein said secondary frequency varies between 50 Hz and 100 Hz from said primary frequency.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |