Coil construction for electromagnetic treatment of an afflicted body region

Claim 1

An electromagnetic body-treatment device for surgically non-invasive modification of the growth, repair and maintenance behavior of living tissues and cells by a specific and selective change in electrical environment, comprising a single multi-turn electrical coil of initially generally circular configuration, wherein a central axis of symmetry extends normal to the plane of said coil, said coil having an external lead-cable connection and said coil being deformed to an extent S out of the plane of said coil into a first body-adapting configuration which is generally U-shaped and generally symmetrically disposed on opposite sides of a first viewing plane defined by said central axis and by a first viewing-aspect axis normal to said central axis, said deformed coil being also in a second body-adapting configuration which is generally U-shaped and symmetrically disposed on opposite sides of a second viewing plane defined by said central axis and by a second viewing-aspect axis normal to said central axis and to said first viewing-aspect axis, the extent S being related to the span L between ends of one of said U-shapes and to the span W between ends of the other of said U-shapes such that ##EQU3## where k is in the range 0.5 to 2.0, and means connected to said cable connection for electrically exciting said single coil with a therapeutically beneficial electrical signal; whereby, upon insertion of an afflicted body region into the U-shaped concavity of one of said configurations, a substantially uniform distribution of magnetic-flux intensity develops in a substantially prismatic volume within the included volume defined by the two U-shaped formations.