High efficiency pulsed electromagnetic field (PEMF) stimulation therapy method and system
US5743844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Nov 1, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A PEMF stimulation therapy system uses a PEMF transducer coil for generating PEMF stimulation signals and includes a single-winding transducer coil. A drive circuit recovers flyback energy from the single-winding transducer coil and dumps the voltage to a voltage supply equal to a predetermined high voltage that differs from supply voltage. This permits sequencing the current through the PEMF transducer coil in a positive direction and then negative direction. The result is a PEMF stimulation therapy system that may use a commercially available, low-cost battery for power and that is significantly lighter and more portable than known PEMF stimulation therapy systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.