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US3640284A
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Apparatus for electrotherapy of the pubococcygeus
Assignee: Individual
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Filing: 1970-01-05
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Granted: 1972-02-08
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Expires: 1990-01-05
Abstract
Abstract Apparatus for electrotherapy of the pubococcygeus muscle group of a female. The apparatus includes an electrode member contoured for insertion into the vagina. Spaced electrodes on the member are supplied with a carrier signal comprising shaped, bipolar pulses in the frequency range of from 20 Hz. to 8 kHz., the signal being carrier modulated at a rate of between 0.2 Hz. and 10 Hz. The bipolar pulses exercise striated muscle, while the low-frequency modulation contracts smooth muscle and prevents continuous tetany. A condom-type vaginometer permits measurement of vaginal volume and of vaginal pressure resulting from contraction of pubococcygeus muscles.
Inventors
- 👤 Philip A De Langis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/43; A61B5/4306; A61B5/4318; A61B5/4337; A61B5/103; A61B5/107; A61B5/1073; A61H; A61H21/00; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0521; A61N1/0524; A61N1/18; A61N1/32; A61N1/36; A61N1/36007
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
183 words
Apparatus for electrotherapy including, a pair of spaced electrodes; means developing a carrier wave which is substantially a sine wave having a frequency within the range of 150 Hz. to 1 kHz., means amplitude modulating said carrier wave with a modulating signal having a frequency substantially less than said carrier frequency and producing a series of recurrent bipolar pulses with each of said pulses having a duration established by said modulating signal and consisting of variations in its amplitude at said carrier wave frequency from a maximum positive value, to a zero value to a maximum negative value, to a zero value to a maximum positive value, and so forth; and means connected to said amplitude modulating means and continuously modifying said maximum positive values and said maximum minimum values such that they become progressively larger at a slower rate during initial development of each of said pulses than during subsequent development such that each of said bipolar pulses is defined by a slowly rising portion followed by a portion of substantially constant amplitude; and means applying said bipolar pulses to said electrodes.
Claim 2
Dependent Claim
183 words
Apparatus for electrotherapy including, a pair of spaced electrodes; means developing a carrier wave which is substantially a sine wave having a frequency within the range of 150 Hz. to 1 kHz., means amplitude modulating said carrier wave with a modulating signal having a frequency substantially less than said carrier frequency and producing a series of recurrent bipolar pulses with each of said pulses having a duration established by said modulating signal and consisting of variations in its amplitude at said carrier wave frequency from a maximum positive value, to a zero value to a maximum negative value, to a zero value to a maximum positive value, and so forth; and means connected to said amplitude modulating means and continuously modifying said maximum positive values and said maximum minimum values such that they become progressively larger at a slower rate during initial development of each of said pulses than during subsequent development such that each of said bipolar pulses is defined by a slowly rising portion followed by a portion of substantially constant amplitude; and means applying said bipolar pulses to said electrodes.
Claim 3
Dependent Claim
21 words
Apparatus as set forth in claim 1 in which modulating frequency is in the range of 150 Hz. to 1 kHz.
Claim 4
Dependent Claim
22 words
Apparatus as set forth in claim 1 in which said modulating frequency is within the range of 0.5 Hz. to 1 kHz.
Claim 5
Dependent Claim
25 words
Apparatus as defined in claim 1 including means for limiting the current flow to said electrodes to a value which does not exceed 250 milliamperes.
References Cited (Backward Citations)
US3056409A
Cited
US3403684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |