Patent ID: 8480706

Claim:
An occluder for a defect adapted to be introduced into the body through the vasculature, the occluder comprising: a tube comprising a proximal side, a central tube portion, and a distal side that cooperate to close the defect, the proximal side having a tip, and the distal side having an end, wherein the proximal and distal sides of the occluder include a plurality of struts, the plurality of struts defining an elongate shape in a first configuration, wherein upon compression of the proximal side and the distal side, the plurality of struts form a plurality of proximal loops and distal loops in a second configuration; and a catch system adapted to secure the occluder in a deployed position such that the occluder is not secured during delivery and becomes secured during deployment, the catch system comprising: a) a first catch element configured to pass through the central tube portion and the tip upon application of a first pulling force F 1 to secure the occluder in the deployed position, wherein the first catch element cannot return through the central portion and tip without application of a sufficient additional force thereto; b) a second catch element configured to pass through the end and the central tube portion upon application of a second pulling force F 2 to release the distal side and proximal side from the deployed position, wherein the second catch element cannot pass through the tip; and c) a wire connecting the first catch element and the second catch element.