Abstract A method and apparatus for therapeutically treating cancer is provided. The apparatus includes a magnetic field generator for producing a controlled, fluctuating, directionally oriented magnetic field parallel to a predetermined axis projecting through a malignant neoplasm. In one aspect, a field detector measures the magnetic flux density along the predetermined axis. The applied magnetic field may comprise a full-wave rectified signal oscillated at predetermined frequencies to maintain a preselected ratio of frequency to the effective flux density, where the ratio regulates the growth characteristics of cancer cells of the neoplasm. This ratio is maintained by adjusting the frequency of the fluctuating magnetic field and/or by adjusting the intensity of the applied magnetic field after nulling out the local magnetic field at that region containing the neoplasm. In one aspect, a synergistic therapeutic cancer treatment is obtained by exposing cancer cells to the magnetic fields of the invention in the presence of a chemotherapeutic cancer agent.
Inventors
👤 Abraham R. Liboff
👤 Bruce R. McLeod
👤 Stephen D. Smith
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-01 20:32
CPC Classifications
A; A61; A61N; A61N2/00; A61N2/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
A method for treating cancer comprising the steps of: positioning a magnetic field generating means adjacent a biological subject afflicted with cancer in an existing ambient magnetic field; generating an applied magnetic field with said magnetic field generating means, said applied magnetic field extending along an axis through said subject and combining with said ambient magnetic field along said axis to form a composite magnetic field; measuring the magnitude of said ambient magnetic field and said applied magnetic field along said axis; fluctuating said applied magnetic field and controlling the magnitude of said applied magnetic field along said axis to create a ratio between the frequency of said fluctuations of said applied magnetic field and the magnitude of said composite magnetic field which regulates the growth characteristics of cancer cells in said subject; and regulating said frequency of said fluctuations based on said measured ambient magnetic field and the magnitude of said applied magnetic field to maintain said ratio as the magnitude of said applied magnetic field changes along said axis.
Claim 2
Independent Claim
171 words
A method for treating cancer comprising the steps of: positioning a magnetic field generating means adjacent a biological subject afflicted with cancer in an existing ambient magnetic field; generating an applied magnetic field with said magnetic field generating means, said applied magnetic field extending along an axis through said subject and combining with said ambient magnetic field along said axis to form a composite magnetic field; measuring the magnitude of said ambient magnetic field and said applied magnetic field along said axis; fluctuating said applied magnetic field and controlling the magnitude of said applied magnetic field along said axis to create a ratio between the frequency of said fluctuations of said applied magnetic field and the magnitude of said composite magnetic field which regulates the growth characteristics of cancer cells in said subject; and regulating said frequency of said fluctuations based on said measured ambient magnetic field and the magnitude of said applied magnetic field to maintain said ratio as the magnitude of said applied magnetic field changes along said axis.
Claim 3
Dependent Claim
83 words
The method recited in claim 1, wherein said ratio of said frequency to said magnitude of said composite magnetic field is determined by using the equation f.sub.c /B=q/(2πm) where f c is said frequency in Hertz, B is the average value of said composite magnetic field in Tesla along said axis, q/m has a value of from about 5×10 5 to about 100×10 6 in Coulombs per kilogram and where B preferably has a value not in excess of about 1×10 -2 Tesla.
Claim 4
Dependent Claim
23 words
The method recited in claim 2, wherein q and m are, respectively, equal to the charge and mass of a preselected ionic species.
Claim 5
Dependent Claim
39 words
The method recited in claim 3, wherein said preselected ionic species is selected from the group consisting of Zn ++ , Mn ++ , Cu + , Li + , K + , Mg ++ and Ca ++ .
Claim 6
Dependent Claim
21 words
The method recited in claim 1 wherein a chemotherapeutic cancer agent is substantially contemporaneously present in said subject during said treatment.