Conformable PEMF transducer
US5314401A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1991 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/0228
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A conformable PEMF transducer (FIG. 1a-1b) used for PEMF therapy (such as for healing non-union fractures of the hip). The transducer (FIG. 3 ) includes electrically conducting primary, secondary, and sense windings (31, 32, 33) formed into a transducer coil integral with non-conducting semi-rigid structural windings (34). The structural windings provide structural support for the coil so that it is formable into a selected anatomical contour, but still flexibly conformable to accommodate normal patient motion. Control electronics (FIG. 4 ) includes a PEMF processor (41) that executes a PEMF program for providing pulsing current to the front and back transducers at predetermined intervals, thereby activating the electromagnetic field according to a prescribed PEMF regimen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.