Abstract: An electrode assembly includes electrodes and a cuff, shaped so as to define a tubular housing that defines a longitudinal axis therealong, two edges, and a slit between the two edges. When the housing is closed, respective contact surfaces of the two edges touch each other, and the housing defines an inner surface that faces and surrounds the axis, to which inner surface the electrodes are fixed. The cuff further defines three or more annular insulating elements that extend toward the axis from the inner surface of the housing at respective longitudinal positions along the housing, such that the inner surface of the housing and pairs of the insulating elements define, at respective longitudinal positions along the housing, respective chambers open toward the axis. The housing is shaped such that the contact surfaces of the two edges extend toward the axis and protrude into the chambers.

Abstract: An electrode assembly includes one or more electrode contact surfaces, and a cuff, to which the contact surfaces are fixed, and which comprises an electrically insulating material, is configured to assume open and closed positions, and, when in the closed position, is shaped so as to define a plurality of planar cross sections perpendicular to a longitudinal axis of the cuff, distributed continuously along an entire length of the cuff along the longitudinal axis, such that the perpendicular cross sections define respective inner closed curves that together define an inner surface that defines and completely surrounds a volume that extends along the entire length of the cuff. The inner closed curves of at least two of the perpendicular cross sections would cross, and not merely intersect, one another if superimposed while preserving orientation and position of the perpendicular cross sections with respect to the cuff. Other embodiments are also described.

Abstract: An electrode assembly includes electrodes and a cuff, shaped so as to define a tubular housing that defines a longitudinal axis therealong, two edges, and a slit between the two edges. When the housing is closed, respective contact surfaces of the two edges touch each other, and the housing defines an inner surface that faces and surrounds the axis, to which inner surface the electrodes are fixed. The cuff further defines three or more annular insulating elements that extend toward the axis from the inner surface of the housing at respective longitudinal positions along the housing, such that the inner surface of the housing and pairs of the insulating elements define, at respective longitudinal positions along the housing, respective chambers open toward the axis. The housing is shaped such that the contact surfaces of the two edges extend toward the axis and protrude into the chambers.

Abstract: An electrode assembly includes one or more electrode contact surfaces, and a cuff, to which the contact surfaces are fixed, and which comprises an electrically insulating material, is configured to assume open and closed positions, and, when in the closed position, is shaped so as to define a plurality of planar cross sections perpendicular to a longitudinal axis of the cuff, distributed continuously along an entire length of the cuff along the longitudinal axis, such that the perpendicular cross sections define respective inner closed curves that together define an inner surface that defines and completely surrounds a volume that extends along the entire length of the cuff. The inner closed curves of at least two of the perpendicular cross sections would cross, and not merely intersect, one another if superimposed while preserving orientation and position of the perpendicular cross sections with respect to the cuff. Other embodiments are also described.