Methods and systems for endovascularly clipping and repairing lumen and tissue defects

An implantable device for repairing an opening in a target tissue defect, the implantable device being adjustable from a delivery condition comprising a generally small diameter configuration to a deployed condition comprising a larger diameter configuration, the implantable device comprising:

• first and second sets of anchoring structures projecting from opposite sides of an intermediate collar structure and generally transverse with a closure structure,
• wherein both sets of anchoring structures bend radially outwardly during the deployed condition;
• wherein the first and second sets of anchoring structures are arranged in a substantially staggered or offset configuration.

An implantable device for repairing an opening in a target tissue defect, the implantable device being adjustable from a delivery condition comprising a generally small diameter configuration to a deployed condition comprising a larger diameter configuration, the implantable device comprising:

• a closure structure sized to substantially cover the opening or cavity when the device is in the deployed condition;
• first and second sets of anchoring structures projecting from opposite sides of an intermediate collar structure and generally transverse with the closure structure, wherein both sets of anchoring structures comprise a generally flattened structure and cross-sectional configuration to form a substantially circumferential, ring-like structure;
• wherein the first and second sets of anchoring structures are configured to contact generally non-overlapping portions of tissue on opposite sides of the tissue defect being closed by the implantable device.