US5010897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for deep heating of cancer
Assignee: Individual
•
Filing: 1989-04-26
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Granted: 1991-04-30
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Expires: 2009-04-26
Abstract
Abstract An apparatus for the deep heating of cancers employing two single turn coaxial coils of varying diameter ranging from 2 inches to 6 inches which rotate synchronously in planes which are parallel to each other with the central axis of each coil lying in exactly the same line which is perpendicular to the plane of the coil. When the two coils are at 180° from each other a line drawn through the central axes of both coils traverses the center of a tumor in the body which is to be heated and is not perpendicular to the two planes of rotation. The coils are placed so that the inner curvature of the rotating coil is tangential to the center of the tumor mass with the summated magnetic field of the rotating coils continuously heating the tumor with the maximum number of lines of magnetic force.
Inventors
- 👤 Harry H. Leveen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
A; A61; A61N; A61N2/00; A61N2/12; A61N1/00; A61N1/40; A61N1/403
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
127 words
An apparatus for developing radio frequency energy between spaced coils to apply an electromagnetic field between the coils to heat a tumor deep seated in a human body comprising a pair of spaced coils spaced apart a distance greater than the diameter of the smallest coil, a radio frequency generator means which generates radio frequency waves to at least one of said coils, means to rotate said coils so that one coil is movably positioned from one surface of the body and the other coil is movably positioned from another surface of the body with both coils being movably positioned from the respective surface of the body to move synchronously in planes which are parallel to each other to maximize magnetic lines of force on said tumor.
Claim 2
Independent Claim
127 words
An apparatus for developing radio frequency energy between spaced coils to apply an electromagnetic field between the coils to heat a tumor deep seated in a human body comprising a pair of spaced coils spaced apart a distance greater than the diameter of the smallest coil, a radio frequency generator means which generates radio frequency waves to at least one of said coils, means to rotate said coils so that one coil is movably positioned from one surface of the body and the other coil is movably positioned from another surface of the body with both coils being movably positioned from the respective surface of the body to move synchronously in planes which are parallel to each other to maximize magnetic lines of force on said tumor.
Claim 3
Dependent Claim
46 words
An apparatus as claimed in claim 1 wherein said generator means comprises a thyraton tube, a tank circuit which converts a current to a radio frequency wave length and an inverter circuit electrically connected to said tank circuit which operates a grid of said thyraton tube.
Claim 4
Dependent Claim
19 words
An apparatus as claimed in claim 1 wherein said generator means is a Colpitts type radio frequency tank circuit.
Claim 5
Dependent Claim
30 words
An apparatus as claimed in claim 2 wherein said tank circuit includes an inductor coil which determines said radio frequency wave length in a range of 10 to 30 megaHertz.
Claim 6
Dependent Claim
44 words
An apparatus as claimed in claim 1 wherein said means to rotate said coils is adapted to rotate said coils so that an inner portion of at least one coil is positioned tangent to a tumor in a human body placed between said coils.
Claim 7
Dependent Claim
20 words
An apparatus as claimed in claim 1 wherein said generator means puts out a frequency of 10 to 100 megaHertz.
Claim 8
Dependent Claim
17 words
An apparatus as claimed in claim 1 wherein said generator means is a Hartley radio frequency circuit.
Claim 9
Dependent Claim
21 words
An apparatus as claimed in claim 1 wherein said generator means is a coupled grid reverse feedback tank radio frequency circuit.
Claim 10
Dependent Claim
16 words
An apparatus as claimed in claim 1 wherein said coils comprise two single turn coaxial coils.
Claim 11
Dependent Claim
19 words
An apparatus as claimed in claim 9 wherein the diameter of each coil ranges from 2 to 6 inches.
Claim 12
Dependent Claim
28 words
An apparatus as claimed in claim 9 wherein the central axis of each coil lies on the same line which is perpendicular to the plane of the coil.
Claim 13
Independent Claim
103 words
An apparatus for the treatment of deep seated tumors in human bodies comprising spaced apart coils adapted to receive a human body therebetween for producing a field of electromagnetic energy in a radio frequency range ranging from 10 to 30 megaHertz, said coils being disposed in a circuit comprising a self tuning radio frequency generator which generates and transmits radio frequency energy to said coils and drive means with a motion translator assembly to rotate said coils synchronously in planes which are parallel to each other so that lines of magnetic force are generated between them to cause continuous heating of said tumor.
Claim 14
Independent Claim
103 words
An apparatus for the treatment of deep seated tumors in human bodies comprising spaced apart coils adapted to receive a human body therebetween for producing a field of electromagnetic energy in a radio frequency range ranging from 10 to 30 megaHertz, said coils being disposed in a circuit comprising a self tuning radio frequency generator which generates and transmits radio frequency energy to said coils and drive means with a motion translator assembly to rotate said coils synchronously in planes which are parallel to each other so that lines of magnetic force are generated between them to cause continuous heating of said tumor.
Claim 15
Dependent Claim
17 words
The apparatus of claim 12 wherein said spaced apart coils are 180° from each other and coaxial.
Claim 16
Independent Claim
165 words
An apparatus for the treatment of tumors in human bodies which comprises a pair of spaced apart coils for producing a shaped field of electromagnetic energy therebetween in a radio frequency range which ranges from 10 to 30 megaHertz, means to rotate said pair of coils synchronously in parallel planes to each other, each coil of said pair of coils having a diameter ranging from 2 to 6 inches and being placed so that the inner curvature of each rotating coil is tangential to the center of a tumor mass, said coils being spaced apart a distance greater than the diameter of one of said coils to repeatedly distribute the heating energy over a wide portion of a human body placed therebetween, said coils being disposed in a circuit comprising a self tuning radio frequency generator which generates and transmits radio frequency energy to said coils so that lines of magnetic force are generated between them during rotation to cause continuous heating of said tumor.
Claim 17
Independent Claim
165 words
An apparatus for the treatment of tumors in human bodies which comprises a pair of spaced apart coils for producing a shaped field of electromagnetic energy therebetween in a radio frequency range which ranges from 10 to 30 megaHertz, means to rotate said pair of coils synchronously in parallel planes to each other, each coil of said pair of coils having a diameter ranging from 2 to 6 inches and being placed so that the inner curvature of each rotating coil is tangential to the center of a tumor mass, said coils being spaced apart a distance greater than the diameter of one of said coils to repeatedly distribute the heating energy over a wide portion of a human body placed therebetween, said coils being disposed in a circuit comprising a self tuning radio frequency generator which generates and transmits radio frequency energy to said coils so that lines of magnetic force are generated between them during rotation to cause continuous heating of said tumor.
Claim 18
Dependent Claim
49 words
An apparatus as claimed in claim 14 wherein said circuit comprises a power supply electrically connected to a tank circuit, said tank circuit being provided with an inductor coil having balancing capacitor means which changes voltage to a desired R.F. wavelength and amplifier means to generate an R.F. pulse.
Claim 19
Dependent Claim
20 words
An apparatus as claimed in claim 15 wherein said balancing capacitor means comprises a plurality of capacitors connected in series.
Claim 20
Dependent Claim
27 words
An apparatus as claimed in claim 15 wherein said amplifier means comprises an inverted circuit which operates the grid of a thyrator tube which generates said pulse.
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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) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |