Vaso-occlusive device

A vaso-occlusive device, comprising:

• an inner braided member having an unconstrained deployed configuration and a constrained delivery configuration, the inner braided member comprising a single braid wire having a plurality of segments made of a first material composition, wherein the single braid wire is bent at junctions between adjacent segments such that it forms a zig-zag pattern defining a plurality of bends, wherein each junction consists of only two respective segment of the single braid wire, and wherein at least one bend of the single braid wire between adjacent segments defines a first braid angle when the inner braided member is in the deployed configuration;
• and
• an outer braided member disposed at least partially around the inner braided member, the outer braided member having an unconstrained deployed configuration and a constrained delivery configuration, wherein the outer braided member comprises a plurality of filaments made of a second material composition different from the first material composition, wherein the first material composition has a greater radiopacity than the second material composition, wherein a pair of filaments of the plurality of filaments define a second braid angle that is substantially equal to the first braid angle, when the outer braided member is in the deployed configuration.