US4153061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrotherapeutic apparatus
Assignee: Siemens AG
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Filing: 1977-10-20
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Granted: 1979-05-08
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Expires: 1997-10-20
Abstract
Abstract Electrical stimulation of muscles and nerves of a human or animal body is brought about by passing two or more carrier frequencies, in a medium range of about 1,000 to 10,000 Hz., along separate but intersecting paths through the body to be treated. Each carrier is amplitude-modulated by a low frequency, preferably not exceeding about 200 Hz., which affords local stimulation in the vicinity of the body-contacting electrodes as well as internal stimulation due to the beat frequencies generated by the modulated carriers.
Inventors
- 👤 Hans Nemec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:48
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/323
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
A method of electrotherapeutically treating a human or animal body, comprising the steps of: generating a first and a second carrier frequency in a range between substantially 1,000 and 10,000 Hz.; amplitude-modulating said carrier frequencies with respective low frequencies of up to about 200 Hz.; and simultaneously passing the amplitude-modulated carrier frequencies over separate but intersecting paths through the body to be treated for stimulating selected surface areas of said body by the amplitude modulation while producing stimulation-inducing beat frequencies in the interior of said body at the intersection of said paths.
Claim 2
Independent Claim
92 words
A method of electrotherapeutically treating a human or animal body, comprising the steps of: generating a first and a second carrier frequency in a range between substantially 1,000 and 10,000 Hz.; amplitude-modulating said carrier frequencies with respective low frequencies of up to about 200 Hz.; and simultaneously passing the amplitude-modulated carrier frequencies over separate but intersecting paths through the body to be treated for stimulating selected surface areas of said body by the amplitude modulation while producing stimulation-inducing beat frequencies in the interior of said body at the intersection of said paths.
Claim 3
Dependent Claim
26 words
A method as defined in claim 1 wherein said carrier frequencies differ from each other by a value less than the magnitude of said low frequencies.
Claim 4
Dependent Claim
17 words
A method as defined in claim 2 wherein said value lies between substantially 5 and 25 Hz.
Claim 5
Dependent Claim
18 words
A method as defined in claim 3 wherein said low frequencies lie between substantially 40 and 100 Hz.
Claim 6
Dependent Claim
23 words
A method as defined in claim 4 wherein said amplitude-modulated carrier frequencies have sideband frequencies lying within substantially 1 Hz. from each other.
Claim 7
Dependent Claim
170 words
An electrotherapeutic apparatus comprising: first oscillator means generating a pair of carrier frequencies in a range between substantially 1,000 and 10,000 Hz.; second oscillator means generating at least one modulating frequency of up to about 200 Hz; first modulator means with inputs connected to respective outputs of said first and second oscillator means for producing a first amplitude-modulated carrier; second modulator means with inputs connected to respective outputs of said first and second oscillator means for producing a second amplitude-modulated carrier; first electrode means connected to an output of said first modulator means and positionable on said body for passing said first amplitude-modulated carrier therethrough; and second electrode means connected to an output of said second modulator means and positionable on said body for passing said second amplitude-modulated carrier therethrough over a path intersecting the path of said first amplitude-modulated carrier for stimulating selected surface areas of said body by the amplitude modulation while producing stimulation-inducing beat frequencies in the interior of said body at the intersection of said paths.
Claim 8
Dependent Claim
170 words
An electrotherapeutic apparatus comprising: first oscillator means generating a pair of carrier frequencies in a range between substantially 1,000 and 10,000 Hz.; second oscillator means generating at least one modulating frequency of up to about 200 Hz; first modulator means with inputs connected to respective outputs of said first and second oscillator means for producing a first amplitude-modulated carrier; second modulator means with inputs connected to respective outputs of said first and second oscillator means for producing a second amplitude-modulated carrier; first electrode means connected to an output of said first modulator means and positionable on said body for passing said first amplitude-modulated carrier therethrough; and second electrode means connected to an output of said second modulator means and positionable on said body for passing said second amplitude-modulated carrier therethrough over a path intersecting the path of said first amplitude-modulated carrier for stimulating selected surface areas of said body by the amplitude modulation while producing stimulation-inducing beat frequencies in the interior of said body at the intersection of said paths.
Claim 9
Dependent Claim
26 words
An apparatus as defined in claim 6 wherein said carrier frequencies differ from each other by a value less than the magnitude of said modulating frequency.
Claim 10
Dependent Claim
17 words
An apparatus as defined in claim 7 wherein said value lies between substantially 5 and 25 Hz.
Claim 11
Dependent Claim
18 words
An apparatus as defined in claim 8 wherein said modulating frequency lies between substantially 40 and 100 Hz.
Claim 12
Dependent Claim
43 words
An apparatus as defined in claim 9 wherein said second oscillator means generates different modulating frequencies respectively fed to said first and second modulator means, said first and second amplitude-modulated carriers having sideband frequencies which lie within substantially 1 Hz. from each other.
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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |