Patent ID: 8764772

Claim:
An occlusion device for occluding a body vessel, the occlusion device comprising: a tubular expandable body having an interior side and an exterior side, the tubular expandable body defining a lumen formed through a center of the tubular expandable body along the longitudinal axis of the occlusion device, the lumen extending from a first completely open end to a second completely open end; a restricting ring disposed around the exterior side of the tubular expandable body and collapsing a portion of the tubular expandable body; and occluding material attached to at least one of the tubular expandable body and the restricting ring to completely occlude the body vessel, the occluding material including at least one of nylon, rayon, polytetrafluoroethylene, and extracellular matrix, the tubular expandable body being configured to move between an expanded state for occlusion within a body vessel and a collapsed state for delivery or retrieval of the device, the tubular expandable body being configured to open radially to define the expanded state and to collapse along a longitudinal axis to define the collapsed state, the occlusion device having a collapsed portion and an uncollapsed portion, the collapsed portion having the restricting ring disposed around the exterior side of the tubular expandable body and the uncollapsed portion having the tubular expandable body without the restricting ring disposed around its exterior side, the collapsed portion having a diameter that is smaller than the diameter of the uncollapsed portion when the tubular expandable body is in the expanded state.