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US 2014/0277115 A1Published application
Internal closure systems and devices
AssigneeCook Medical Technologies LLC
InventorCleon Stanley
Life of this patent
Estimating the term…
Abstract
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.
Claims20
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.
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,
- wherein the exterior surface includes a groove, the groove including a pair of facing surfaces meeting at a living hinge, the groove following the curvature of the exterior surface and being generally parallel to the major axis, and
- at least one elongated member attached to the interior surface.
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,
- the internal member having a central region and a skirt region laterally outward of the central region and monolithically joined to the central region at a discrete bend region, the central region being at least partially ellipsoidal and including a portion of the exterior surface and interior surface, the skirt region including a portion of the exterior surface and interior surface each of which are substantially elliptically conical in form, the skirt region having a rim at a substantially constant distance from the bend region, the exterior surfaces of the central and skirt regions joining at the bend region and forming the exterior surface of the internal member, the interior surfaces of the central and skirt regions joining at the bend region and forming the interior surface of the internal member,
- wherein the internal member is adapted to initially bend substantially at or outside the bend region without substantially changing the shape of the central region.
Dependencies are inferred from the claim text.