Patent ID: 8140173

Claim:
An anchor system for securing a lead to a patient's skull, said lead being of the type that passes through a burr hole of said skull and that includes a distal end which is implanted within the patient's brain at a target site, the anchor system comprising: a cylindrical insert that is sized to fit snugly into said burr hole, said insert defining a lower end and an upper end, said insert including a passage that communicates said lower end with said upper end; a flange located about said insert at said upper end, said flange having an outer diameter that is larger than the inside diameter of said burr hole and defining a periphery; at least one clamp located along said periphery of said flange, said clamp being sized and shaped to snugly receive and clamp onto said lead; wherein said passage is flared from a first diameter at said lower end of said insert to a larger diameter at said upper end, said flared passage being adapted to receive said lead from said brain and further configured to allow said lead to atruamatically transition from a perpendicular path from said burr hole to a path that is generally tangential with respect to said flange, said clamp configured to receive and clamp onto said lead so that said lead is effectively anchored with respect to said patient's skull; and wherein said clamp includes a starting lead-receiving tube, a middle lead-receiving tube and an ending lead-receiving tube, said middle lead-receiving tube including a slit along its length so that a lead may be inserted into said middle tube through said slit, said middle tube being sized to snugly frictionally contact said lead when said lead is inserted into said middle tube.