US4467809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for non-invasive electrical stimulation of epiphyseal plate growth
Assignee: University of Pennsylvania
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Filing: 1982-09-17
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Granted: 1984-08-28
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Expires: 2002-09-17
Abstract
Abstract Epiphyseal growth plate stimulation in the bone of a living body is achieved by applying electrodes non-invasively to a body and supplying to said electrodes an AC signal in the range of about 2.5 to 15 volts peak-to-peak at a frequency of about 20-100 KHz.
Inventors
- 👤 Carl T. Brighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/326
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
A non-invasive method of stimulating growth in the epiphyseal plate in the bone of a living body comprising: applying electrodes to the body of a subject in the vicinity of the epiphyseal growth plate of a bone; and supplying to said electrodes an alternating current stimulation signal in the ultrasonic frequency range of about 20 to 100 KHz for a sufficient period of time to effect an increase in the growth of said bone as compared with any bone growth that would occur naturally.
Claim 2
Dependent Claim
84 words
A non-invasive method of stimulating growth in the epiphyseal plate in the bone of a living body comprising: applying electrodes to the body of a subject in the vicinity of the epiphyseal growth plate of a bone; and supplying to said electrodes an alternating current stimulation signal in the ultrasonic frequency range of about 20 to 100 KHz for a sufficient period of time to effect an increase in the growth of said bone as compared with any bone growth that would occur naturally.
Claim 3
Dependent Claim
29 words
The method in accordance with claim 1 wherein the peak-to-peak voltage amplitude of the signal supplied to the electrodes is within the range of about 2.5 to 15 volts.
Claim 4
Dependent Claim
29 words
The method in accordance with claim 1 wherein the peak-to-peak voltage amplitude of the signal supplied to the electrodes is within the range of about 5 to 10 volts.
Claim 5
Dependent Claim
21 words
The method in accordance with claim 1 wherein the frequency of the signal supplied to the electrodes is about 60 KHz.
Claim 6
Dependent Claim
23 words
The method in accordance with claim 1 wherein the electrodes are bare metal electrodes in direct contact with the skin of the subject.
Claim 7
Dependent Claim
22 words
The method in accordance with claim 5 wherein a conductive gel is applied to the skin of the subject beneath the electrodes.
Claim 8
Dependent Claim
16 words
The method in accordance with claim 1 wherein the stimulation signal has a symmetrical sine waveform.
Claim 9
Dependent Claim
18 words
The method in accordance with claim 1 wherein the stimulation signal is applied to the body substantially continuously.
Claim 10
Dependent Claim
102 words
A non-invasive method of stimulating growth in the epiphyseal plate in the bone of a living body comprising: applying two bare electrodes to the body of a subject in the vicinity of the epiphyseal growth plate of a bone; and supplying to said electrodes an alternating current stimulation signal having a generally symmetrical sine waveform with a voltage amplitude within the range of about 5 to 10 volts peak-to-peak and a frequency of about 60 KHz for a sufficient period of time to effect an increase in the growth of said bone as compared with any bone growth that would occur naturally.
Claim 11
Dependent Claim
102 words
A non-invasive method of stimulating growth in the epiphyseal plate in the bone of a living body comprising: applying two bare electrodes to the body of a subject in the vicinity of the epiphyseal growth plate of a bone; and supplying to said electrodes an alternating current stimulation signal having a generally symmetrical sine waveform with a voltage amplitude within the range of about 5 to 10 volts peak-to-peak and a frequency of about 60 KHz for a sufficient period of time to effect an increase in the growth of said bone as compared with any bone growth that would occur naturally.
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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) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |