INTERNAL CLOSURE SYSTEMS AND DEVICES

摘要

Among other things, there are shown embodiments of internal members for closure of vascular wall or other bodily openings, particularly useful in closing larger holes (e.g. larger than 10 French). Embodiments create a better seal or meeting with a vascular or other tissue wall by distributing force outward from the center, and/or by including rib, groove or hinge features that allow the internal member, as it is pulled toward tissue, to close the hole and engage tissue more closely or firmly.

主权项

1. A vascular closure system, comprising:
an internal member for anchoring or sealing against the inside wall of a blood vessel, the internal member being at least partially ellipsoidal with a major axis and a minor axis, and having an exterior surface for facing away from the inside wall and an interior surface for facing the inside wall, wherein in an initial unstressed configuration the exterior surface is convex and the interior surface is concave, and a plurality of elongated members fixed to the interior surface of the internal member, the elongated members arranged symmetrically across the major axis, wherein the elongated members are non-orthogonal to the interior surface at a point at which the respective elongated members engage the internal member.