Patent ID: 7727189

Claim:
Apparatus for permanent placement across an ostium of a left atrial appendage in a patient, comprising: a permanent membrane configured to extend across the ostium of the left atrial appendage; and a support structure having a first deployed shape configuration having a radially enlarged medial portion to permanently engage the interior wall of the left atrial appendage, and having a second retracted shape configuration having a radially reduced medial portion to fit within a delivery catheter in an undeployed state; said support structure having a plurality of strut like limbs defining an exterior diameter when in the deployed shape and defining a retracted diameter in the undeployed state, each strut like limb expanding from and defining a first distal hub area where radially deployable strut like limbs are gathered together in both the deployed and retracted state, a second medial hub area where deployable strut like limbs are gathered together in both the deployed and undeployed state in a necked down ring, and a third proximal hub area facing the left ventricle when in the deployed state, said support structure having a membrane support frame and associated membrane wherein the filtering membrane is attached to the support structure extending across the ostium of the left atrial appendage when the deployable medial portion engages the interior of the left atrial appendage the strut like limbs coming together at the third proximal hub area.