Patent ID: 7738942

Claim:
A medical assist system, comprising: a primary device housing; said primary device housing having a control circuit therein; a lead system to provide an electrical path between a tissue region and said primary device housing; and a shielding formed around said lead system to shield said lead system from electromagnetic interference; said shielding being formed of a first layer patterned with non-conductive materials and conductive materials and a second layer patterned with non-conductive materials and conductive materials; wherein the conductive materials of the first layer are patterned in a direction substantially parallel to an axis of the lead system such that each of the conductive materials is physically separated from the other conductive materials of the first layer; wherein the conductive materials of the second layer are patterned in a direction substantially parallel to an axis of the lead system such that each of the conductive materials is physically separated from the other conductive materials of the second layer; and wherein the conductive materials of the first layer and the conductive materials of the second layer are patterned in a direction substantially perpendicular to the axis of the lead system such that each of the conductive materials of the first layer is electrically isolated from the conductive materials in the second layer.