Patent ID: 8065021

Claim:
Apparatus for applying current to a nerve having a radius and a longitudinal central axis, comprising: a housing, adapted to be placed in a vicinity of the nerve, and shaped so as to define two end walls; first and second electrodes, fixed within the housing longitudinally between the end walls; and an insulating element, fixed to the housing between the first and second electrodes so as to define a characteristic closest insulating element perpendicular distance to the central axis, wherein the first and second electrodes are fixed within the housing so as to define respective first and second closest electrode perpendicular distances to the axis, when the housing is placed in the vicinity of the nerve, and wherein the first and second closest electrode perpendicular distances are both greater than the closest insulating element perpendicular distance, and greater than a closest perpendicular distance between the axis and both of the end walls of the housing.