US4412540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for high frequency electromagnetic therapy
Assignee: Individual
•
Filing: 1982-09-30
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Granted: 1983-11-01
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Expires: 2002-09-30
Abstract
Abstract A high frequency electromagnetic therapy apparatus having one or more flexible induction elements (such as sheathed electrically conductive wire 2) embodied in a flexible material (such as silicone rubber) and connected into the tuned LC circuit of a high frequency oscillator circuit whereby the frequency of the electromagnetic field produced by the apparatus is determined at least in part by the capacitive coupling between the induction elements and the area of the body being treated.
Inventors
- 👤 Richard H. C. Bentall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:32
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61N1/40
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
109 words
A method for promoting healing of body tissue, comprising the steps of: generating a high frequency, low-energy electromagnetic field at a treatment frequency determined by an inductive-capacitive tuned circuit; radiating the electromagnetic field from a flexible inductor-antenna into an area of body tissue to be treated, at a field strength which promotes healing of body tissue, but which is too small to significantly heat body tissue; and, controlling the frequency of the field by including the inductor-antenna as a part of the tuned circuit, whereby the strength of the radiated field is independent of the differences in capacitive coupling between the inductor-antenna and the body tissue to be treated.
Claim 2
Independent Claim
109 words
A method for promoting healing of body tissue, comprising the steps of: generating a high frequency, low-energy electromagnetic field at a treatment frequency determined by an inductive-capacitive tuned circuit; radiating the electromagnetic field from a flexible inductor-antenna into an area of body tissue to be treated, at a field strength which promotes healing of body tissue, but which is too small to significantly heat body tissue; and, controlling the frequency of the field by including the inductor-antenna as a part of the tuned circuit, whereby the strength of the radiated field is independent of the differences in capacitive coupling between the inductor-antenna and the body tissue to be treated.
Claim 3
Dependent Claim
22 words
The method of claim 1, comprising the step of radiating the electromagnetic field from a spiral-shaped inductor-antennna of at least one turn.
Claim 4
Independent Claim
29 words
The method of claims 1 or 2, comprising the step of radiating the electromagnetic field from a spiral-shaped inductor-antenna having a plurality of inductor elements defined between tapping points.
Claim 5
Dependent Claim
19 words
The method of claim 1, comprising the step of driving the tuned circuit with a fixed frequency pulse generator.
References Cited (Backward Citations)
US2276996A
Cited
US2656839A
Cited
US2583853A
Cited
US2882904A
Cited
US3181535A
Cited
US4028518A
Cited
US4197851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |