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US4467809A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for non-invasive electrical stimulation of epiphyseal plate growth

Assignee: University of Pennsylvania
•
Filing: 1982-09-17
•
Granted: 1984-08-28
•
Expires: 2002-09-17
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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.

References Cited (Backward Citations)

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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

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