Patent ID: 8528563

Claim:
A fallopian tube occlusion device, comprising: an apical hub dimensioned for endolumenal navigation into a fallopian tube; and at least three corrugated arms having respective proximal ends joined together at the apical hub, each arm comprising a unidirectional corrugated segment extending in a distal direction away from the apical hub, the arms movable from a substantially parallel, low profile configuration to an inclined, radially enlarged configuration, in which respective distal ends of the arms are flared apart from one another while the proximal ends remain joined together at the apical hub, each arm further comprising a distal end tissue anchor, wherein the corrugated arms are biased in the direction of the radially enlarged configuration, and wherein at least one of the arms comprises a locking barb, and wherein the device further comprises a containment ring configured to be advanced over the arms from a location adjacent to the apical hub to a location beyond the locking barb.