Patent ID: 8652023

Claim:
A system for providing therapy to a subject, the system comprising: a body including two intertwined helically wound runners, a first runner and a second runner, arranged in at least two complete revolutions per runner with the first runner coupled to the second runner by struts, wherein the struts do not conduct electricity between the first runner and the second runner, wherein the body is arranged in a toroidal shape having a centroid, wherein the centroid is configured to be arranged at or near at least one of the subject and a body part of the subject; a first wire spirally wound around the first runner such that the first wire is arranged in a helical shape having an axis that coincides with the first runner, wherein the first wire is conductive; a second wire spirally wound around the second runner such that the second wire is arranged in a helical shape having an axis that coincides with the second runner, wherein the second wire is conductive; two leads of the first wire configured to be electrically coupled with a current source to receive a first current through the first wire along the first runner; and two leads of the second wire configured to be electrically coupled with the current source to receive a second current through the second wire along the second runner, wherein the first current and the second current create an electromagnetic field at or near the centroid that provides therapy to the subject.