Embolic Device With Shaped Wire

An occlusion device for body cavities comprising:

• a helical carrier member sized and shaped for delivery into an aneurysm to cause embolization, said helical carrier member being formed from a solid, radiopaque wire having a non-circular cross-sectional shape formed of a first section having a linear, flat surface and an opposing second section having a channeled half-circle cross sectional shape formed of two convex curved regions separated by an open and unobstructed curved concave region and configured such that the channeled half-circle cross-sectional shape of said solid, radiopaque wire is oriented radially outward from said occlusion device and the linear, flat surface of said solid, radiopaque wire is oriented radially inward of said occlusion device;
• an expansile member disposed within said helical carrier and being composed of a liquid-swellable material that expands when exposed to blood;
• said solid radiopaque wire comprised of a series of loops wherein loops in a distal region are positioned immediately in contact with adjacent loops so as to be gapless and wherein loops in a proximal region are positioned not in contact with adjacent loops so as to be gapped;
• such configuration reducing the amount of expansile material of said expansile member that is exposed to blood prior to full deployment of said occlusion device;
• and,
• said loops in said proximal region having at least one elongated fixture member maintaining a fixed distance region between at least two adjacent loops.