Method for localizing electrical activity in the body
US6594521B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Nov 13, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0536
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for localizing electrical activity in the body. A plurality of electrical devices apply a predetermined current (or voltage) to the surface of the body, and sense voltage (or current). The same electrical devices employed to sense voltage (or current) from sources of electrical activity within the body are also employed to sense voltage (or current) that results from the application of current (or voltage) by the other electrical devices. The voltages (or currents) sensed are used to characterize impedance within the body as well as to localize sources of the electrical activity. Magnetic resonance imaging may be used in conjunction with voltages or currents applied to the surface of the body to develop a conductivity model for underlying body tissue. Conductivity models obtained according to the invention may also be used with source localization for stimulating internal body tissue at a precise location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.