Medical devices for treating a target site and associated method

A medical device comprising:

• at least one layer of a fabric of braided strands, wherein a first layer of two layers of the fabric of braided strands comprises strands of a first diameters, and wherein a second layer of the two layers of the fabric of braided strands comprises strands of a second diameter, the medical device having proximal and distal ends and a central axis extending therebetween and having an expanded preset configuration comprising a generally frustoconical shaped portion at each end and a central portion coupling the frustoconical portions together such that the frustoconical portions are spaced axially apart from one another along the central axis, wherein, in the expanded preset configuration, each frustoconical shaped portion comprises first and second ends, wherein the first ends are generally planar and face one another and have a larger cross-sectional diameter than the second ends, wherein the second ends correspond to the proximal and distal ends of the medical device, wherein the medical device is configured to be constrained to a reduced configuration for delivery through a diagnostic catheter, and wherein the medical device is biased towards the expanded preset configuration such that the medical device is configured to self expand and at least partially return, when unconstrained, towards the expanded preset configuration.