Patent ID: 8734483

Claim:
A closure device for occluding a bodily passageway having a proximal end and a distal end, comprising: an occluding body comprising a plurality of flexible outwardly radiating occluding wires having a collapsed configuration for delivery or retrieval and an expanded configuration for occluding the bodily passageway, the occluding wires connected to one or more biocompatible sheet materials, wherein the occluding wires are joined together at proximal wire ends and include proximal wire portions provided adjacent to the proximal wire ends, the proximal wire portions configured to be placed within the bodily passageway and to be biased against tissue portions within the bodily passageway, wherein in the expanded configuration, each occluding wire has an inward first bend portion in the proximal portion and an outward second bend portion extending from the first bend portion to a distal free end; a clamp located along a central axis of the closure device, the clamp securing the proximal wire ends; and an elongated anchor forming a single flexible, substantially linear structure comprising at least one tube, coil, or bar, and having two anchor ends; wherein the occluding body is connected to a center region of the substantially linear structure by at least one linking member; and wherein the anchor extends in a direction transverse to and across the central axis of the occluding device and is configured to extend radially beyond the first bend portion and beyond a transverse cross-section of the bodily passageway with both anchor ends, the anchor anchoring the occluding body into the bodily passageway.