Patent ID: 8551132

Claim:
An implantable device for repairing an opening or cavity in a target tissue defect, the implantable device being adjustable from a delivery condition in which it assumes a generally small diameter configuration to a deployed condition in which it assumes 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, wherein the closure structure comprises a concave structure configured to extend away from the target tissue defect in said deployed condition; and a first anchoring structure extending in a first direction from a first portion of the closure structure, and a second anchoring structure extending from a second, different portion of the closure structure in a generally opposite second direction from the first direction when the device is in the deployed condition, wherein the first and second anchoring structures form generally closed loop atraumatic structures having a diameter larger than that of the closure structure when the device is in the deployed condition, and wherein the first and second anchoring structures are configured to extend toward the target tissue defect in a direction generally opposite to a concavity of the closure structure.