US4654574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reactively applying electrical energy pulses to a living body
Assignee: PTA Corp
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Filing: 1984-03-20
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Granted: 1987-03-31
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Expires: 2004-03-20
Abstract
Abstract A device for therapeutic treatment of cells and tissues in a living body by non-invasively applying a developed field of pulsating electrical energy to a body site to stimulate repair or growth of bone structure at the body site containing electronic counters to control the desired number of pulses, the pulse repetition rate and the pulse duty cycle. A sensor may be used to detect the occurrence of an applied pulse and produce a signal to control the developed field and may also be used to feed a circuit which tests the developed field to determine if it is adequate for the intended purpose. As an added feature, a circuit is provided to recover a portion of the energy in the developed field, during its decline, to reduce power consumption and dissipation.
Inventors
- 👤 Sheldon Thaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:05
CPC Classifications
A; A61; A61N; A61N2/00; A61N2/02; Y; Y10; Y10S; Y10S320/00; Y10S320/29; Y10S320/31
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
66 words
In a device for reactively applying to a body site a varying electrical energy field developed from an originating battery source for stimulating repair or growth of tissue or bone structure in the body: means coupled to said applied field for extracting energy from said field during a portion of the varying field cycle; and means for restoring said extracted energy to the originating battery source.
Claim 2
Dependent Claim
66 words
In a device for reactively applying to a body site a varying electrical energy field developed from an originating battery source for stimulating repair or growth of tissue or bone structure in the body: means coupled to said applied field for extracting energy from said field during a portion of the varying field cycle; and means for restoring said extracted energy to the originating battery source.
Claim 3
Dependent Claim
20 words
The device as in claim 1 wherein the energy is extracted during the declining portion of the varying field cycle.
Claim 4
Dependent Claim
51 words
The device as in claim 1 wherein said means for extracting the energy comprises coil means in which the varying field induces a voltage, and said means for restoring the energy comprises circuit means for rectifying the induced voltage from said coil means and feeding it to said originating battery source.
Claim 5
Dependent Claim
71 words
In a device for reactively applying to a body site a varying electrical energy field developed from an originating battery source for stimulating repair or growth of tissue or bone structure in the body: means coupled to said applied field for extracting energy from said field during the declining portion of the varying field cycle; and means for using the extracted energy for controlling the rate of decline of the field.
Claim 6
Dependent Claim
71 words
In a device for reactively applying to a body site a varying electrical energy field developed from an originating battery source for stimulating repair or growth of tissue or bone structure in the body: means coupled to said applied field for extracting energy from said field during the declining portion of the varying field cycle; and means for using the extracted energy for controlling the rate of decline of the field.
Claim 7
Dependent Claim
33 words
The device as in claim 4 wherein said means for extracting the energy comprises coil means and said means for controlling the rate of field decline comprises a load across said coil means.
Claim 8
Dependent Claim
105 words
In a device for reactively applying to a body site a varying electrical energy field developed from an originating battery source for stimulating repair or growth of tissue or bone structure in the body: a permeable core: first electrical coil means wound around said core coupled to the originating energy source for developing said varying field from energy supplied by said originating energy source; second coil means wound around said core for extracting energy from said varying field during the declining portion of the varying field cycle; and means coupled to said second coil means for restoring said extracted energy to the originating battery source.
Claim 9
Dependent Claim
105 words
In a device for reactively applying to a body site a varying electrical energy field developed from an originating battery source for stimulating repair or growth of tissue or bone structure in the body: a permeable core: first electrical coil means wound around said core coupled to the originating energy source for developing said varying field from energy supplied by said originating energy source; second coil means wound around said core for extracting energy from said varying field during the declining portion of the varying field cycle; and means coupled to said second coil means for restoring said extracted energy to the originating battery source.
Claim 10
Dependent Claim
47 words
The device as in claim 6 wherein said varying field induces a voltage in said second coil means and said means for restoring the energy comprises circuit means connected to said second coil means for rectifying the induced voltage and feeding it to said DC energy source.
Claim 11
Dependent Claim
24 words
The device as in claim 6 wherein said second coil means comprises a plurality of separate windings distributed over the length of said core.
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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |