US5224922A
Expired / Lapsed
US
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Quasistatic biological cell and tissue modifier
Assignee: Individual
•
Filing: 1988-05-19
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Granted: 1993-07-06
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Expires: 2008-05-19
Abstract
Abstract A quasistatic biological cell and tissue modifier is provided that presents a controlled electromagnetic environment which produces beneficial effects in biological material. The electromagnetic environment consists of a static magnetic field and a time-varying field. The static magnetic field potentiates the effect of the time-varying magnetic field and further modulates the amplitude at which the time-varying field is biologically active. The static field is provided by a permanent magnet or through electromagnetic means. In one embodiment the coil that produces the time-varying field is a single coplanar helical coil. In another embodiment it is a plurality of coplanar helical coil segments connected in parallel. In these two embodiments the coil is a flexible printed circuit that can be contoured around an organ. The static magnetic component is provided by a flexible permanent magnet or by the net bias of the time-varying field itself. A third embodiment with two small rigid coils uses a clamp to attach the coils to a patient's ear or other part of the body.
Inventors
- 👤 Warren H. Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
A; A61; A61N; A61N2/00; A61N2/02
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
50 words
A method for producing a regenerative effect in a biological system by exposing said biological system to an electromagnetic environment, said method comprising the steps of: generating a time-varying magnetic field; generating a static magnetic field in conjunction with said time-varying magnetic field in order to produce said regenerative effect.
Claim 2
Independent Claim
50 words
A method for producing a regenerative effect in a biological system by exposing said biological system to an electromagnetic environment, said method comprising the steps of: generating a time-varying magnetic field; generating a static magnetic field in conjunction with said time-varying magnetic field in order to produce said regenerative effect.
Claim 3
Independent Claim
58 words
A method for exposing a biological system to an electromagnetic environment to produce a regenerative effect in said biological system, said method comprising the steps of: generating a time-varying magnetic field comprising unidirectional magnetic pulses; and generating a static magnetic field in conjunction with said time-varying magnetic field in order to produce said effect in said biological system.
Claim 4
Independent Claim
58 words
A method for exposing a biological system to an electromagnetic environment to produce a regenerative effect in said biological system, said method comprising the steps of: generating a time-varying magnetic field comprising unidirectional magnetic pulses; and generating a static magnetic field in conjunction with said time-varying magnetic field in order to produce said effect in said biological system.
Claim 5
Dependent Claim
29 words
The method of claim 2 wherein said unidirectional magnetic pulses are generated at a repetition rate substantially equal to a subharmonic of a selected ion precessional magnetic resonance frequency.
Claim 6
Dependent Claim
13 words
The method of claim 2, wherein said unidirectional magnetic pulses are substantially square.
Claim 7
Dependent Claim
52 words
The method of claim 2 wherein said step of generating said unidirectional magnetic pulses comprises generating at least a first component having a rising level, a second component having a substantially constant level and a third component having a falling level, said first and third components having rise and fall times respectively.
Claim 8
Dependent Claim
27 words
The method of claim 5 wherein said second component is generated with a duration that is substantially a reciprocal of a selected ion precessional magnetic resonance frequency.
Claim 9
Dependent Claim
41 words
The method of claim 5 wherein said step of generating unidirectional magnetic pulses further comprises generating a unidirectional magnetic pulse such that the fall time of said third component is of greater duration than the rise time of said first component.
Claim 10
Dependent Claim
89 words
The method of claim 7 wherein the step of generating unidirectional magnetic pulses further comprises generating voltage pulses having a pulse repetition rate substantially within the range of 0.5-256 Hz, wherein said rise time is substantially within the range of 150-400 microseconds, said fall time is substantially within the range of 860-920 microseconds, and wherein said second component is further defined by a constant duration, wherein said constant duration is substantially within the range of 2-20 milliseconds and said constant level is substantially within the range of 0.1-3.0 gauss.
Claim 11
Independent Claim
53 words
A method for exposing a biological system to an electromagnetic environment to produce a regenerative effect in said biological system, said method comprising the steps of: generating a time-varying magnetic field; generating a static magnetic field oriented parallel to said time-varying magnetic field in order to produce said effect in said biological system.
Claim 12
Independent Claim
53 words
A method for exposing a biological system to an electromagnetic environment to produce a regenerative effect in said biological system, said method comprising the steps of: generating a time-varying magnetic field; generating a static magnetic field oriented parallel to said time-varying magnetic field in order to produce said effect in said biological system.
Claim 13
Independent Claim
77 words
A method for exposing a biological system to an electromagnetic environment to produce a regenerative effect in said biological system, said method comprising the steps of: generating a time-varying magnetic field; generating a static magnetic field in conjunction with said time-varying magnetic field in order to produce said effect in said biological system, wherein said amplitude level of said static magnetic field is substantially at least an order of magnitude greater than an ambient geomagnetic amplitude level.
Claim 14
Independent Claim
77 words
A method for exposing a biological system to an electromagnetic environment to produce a regenerative effect in said biological system, said method comprising the steps of: generating a time-varying magnetic field; generating a static magnetic field in conjunction with said time-varying magnetic field in order to produce said effect in said biological system, wherein said amplitude level of said static magnetic field is substantially at least an order of magnitude greater than an ambient geomagnetic amplitude level.
Claim 15
Dependent Claim
27 words
The method of claim 10 wherein the amplitude level of said time-varying field is less than or equal to the amplitude level of said static magnetic field.
Claim 16
Independent Claim
104 words
A method for producing a regenerative effect in a biological system by exposing said biological system to an electromagnetic environment, said biological system having an amplitude window defining the range of amplitudes of an applied time-varying magnetic field at which said effect will be produced, said method comprising the steps of: generating a time-varying magnetic field having a selectable amplitude level; generating a static magnetic field having a selectable amplitude level and being selectably oriented with respect to said time-varying magnetic field to modify said amplitude window and modulate the amplitudes at which said time-varying magnetic field produces said effect in said biological system.
Claim 17
Independent Claim
104 words
A method for producing a regenerative effect in a biological system by exposing said biological system to an electromagnetic environment, said biological system having an amplitude window defining the range of amplitudes of an applied time-varying magnetic field at which said effect will be produced, said method comprising the steps of: generating a time-varying magnetic field having a selectable amplitude level; generating a static magnetic field having a selectable amplitude level and being selectably oriented with respect to said time-varying magnetic field to modify said amplitude window and modulate the amplitudes at which said time-varying magnetic field produces said effect in said biological system.
Claim 18
Dependent Claim
18 words
The method of claim 12 wherein said static magnetic field is oriented perpendicular to said time-varying magnetic field.
Claim 19
Dependent Claim
37 words
The method of claim 12 wherein the amplitude of said static magnetic field is of such a level so as to increase the amplitudes at which said time-varying magnetic field produces said effect in said biological system.
Claim 20
Dependent Claim
37 words
The method of claim 12 wherein the amplitude of said static magnetic field is of such a level so as to decrease the amplitudes at which said time-varying magnetic field produces said effect in said biological system.
Claim 21
Dependent Claim
25 words
The method of claim 12 wherein said time-varying magnetic field is generated with a frequency substantially equal to a selected ion precessional magnetic resonance frequency.
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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) | 1996-07-05 | 1997-01-04 | 1997-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-05 | 2001-01-04 | 2001-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-05 | 2005-01-04 | 2005-07-06 | $7700.00 | Window Closed / Lapsed |