Patent ID: 6066084
Filing Date: 2000-05-23
Classification: A61N

Abstract:
A neuromagnetic apparatus for focusing on a target region of subcutaneous nerve tissue below a surface of tissue, said neuromagnetic apparatus comprising:a control circuit;at least one pair of adjacent eccentric coils positioned in a region of adjacency and connected to said control circuit, each coil in said at least one pair of adjacent eccentric coils being positioned and controlled with respect to each other resulting in:(a) a first broad low-field region produced near said surface of tissue; and(b) a second narrow high-field region produced below said surface of tissue,separate electrical paths connecting each of said at least one pair of adjacent eccentric coils to said control circuit and current in said separate electrical paths being in opposing directions in said region of adjacency of said at least one pair of adjacent eccentric coils, said at least one pair of adjacent eccentric coils synchronously-simultaneously operated, andsaid at least one pair of adjacent eccentric coils adapted to be placed near said surface tissue, at least said first broad low-field region and said second narrow high-field region interacting to provide a peak electric field focus in said target region of said subcutaneous nerve tissue and to cancel cutaneous fields near said region of adjacency and to reduce cutaneous fields elsewhere.