Tumor treatment with free radical lifetimes enhanced by persistant low strength magnetic field
US9757582B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 25, 2013 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Jun 1, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N7/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In the treatment of a tumor (126) with radiation therapy (122) is enhanced by a weak magnetic field (130), the field strength time sequence of exposure and shape and contour of the magnetic field are varied to achieve desired results. In one separate aspect, exposure to a magnetic field (130) is continued after exposure to a free radical-creating therapy is ceased or diminished, thereby increasing the lifetimes of free radicals that have already been created. In another preferred embodiment a magnetic field (13) is strategically placed to avoid extending the lives of free radicals in tissue through which a free radical-creating beam must pass, to reach a tumor. This application discloses quantitative parameters for field strength and exposure time to create concentrations and reactivity of free radicals, including long-lived free radicals and discloses the use of shaped, contoured, and designed electromagnetic fields. A treatment planning station (200) is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.