US4365622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple plate resonant electrode
Assignee: DONALD L MORTON and ASSOCIATES
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Filing: 1980-09-11
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Granted: 1982-12-28
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Expires: 2000-09-11
Abstract
Abstract A self-resonant single-turn electrode for use in the treatment of animal tissue with hyperthermia by coupling the electrode to a supply of radio frequency energy. The electrode comprises a plurality of planar annular disc members concentrically stacked with dielectric material therebetween. Each disc has a radial slit therethrough to form a gap. The discs are stacked with the gaps of adjacent discs 180° apart. The radio frequency energy may be coupled to the entire stack by connecting to only one disc and the discs are all insulated from each other.
Inventors
- 👤 William H. Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:23
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/54; A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
A self-resonant single-turn electrode for use in the treatment of animal tissue by hyperthermia by coupling the electrode to a supply of radio frequency energy, the electrode comprising: a plurality of planar members of electrically conductive material shaped in the form of annular discs, said annular discs each having a single slit radially therethrough to form a gap, said discs being stacked concentrically and insulated from one another with dielectric material disposed therebetween, said gap of each of said discs being disposed 180° from the next adjacent ones of said discs, one of said discs having means associated therewith for operative attachment to a supply of radio frequency energy.
Claim 2
Dependent Claim
109 words
A self-resonant single-turn electrode for use in the treatment of animal tissue by hyperthermia by coupling the electrode to a supply of radio frequency energy, the electrode comprising: a plurality of planar members of electrically conductive material shaped in the form of annular discs, said annular discs each having a single slit radially therethrough to form a gap, said discs being stacked concentrically and insulated from one another with dielectric material disposed therebetween, said gap of each of said discs being disposed 180° from the next adjacent ones of said discs, one of said discs having means associated therewith for operative attachment to a supply of radio frequency energy.
Claim 3
Dependent Claim
29 words
The electrode of claim 1 wherein: said operative attachment means comprises means for connecting a pair of wires directly to said one of said discs across said gap thereof.
Claim 4
Dependent Claim
33 words
The electrode of claim 1 wherein: said operative attachment means comprises a separate inductive loop for connection to the energy supply disposed in concentric, parallel, close-spaced relationship to said one of said discs.
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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |