Embolic coil

摘要

A coil for occluding the vasculature of a patient. The coil has a textured surface which provides improved platelet adhesion compared to a non-textured surface, to promote clotting. The coil comprises a platinum-tungsten alloy wire and the texturing is performed by abrasion or sandblasting to provide substantially uniform roughness comprising pockets having diameters of about 0.125 mu m to about 50 mu m and depths of about 0.25 mu m to about 20 mu m.