Patent ID: 8052715

Claim:
A system for retrieving an implantable LAA occlusion device, comprising: a delivery catheter having a proximal end and a distal end; said delivery catheter adapted for engagement at the distal end of said catheter with an implantable LAA occlusion device of the type having barbs on its exterior surface; a recapture section axially movable with respect to said delivery catheter and also extendable from the distal end of the delivery catheter; said recapture section including an extendable mesh sock anchored at a first end to a sock attachment section and connected on a second end to a petal carrier connected to a petal; said petal carrier adapted for reciprocating motion inside a sheath; a sheath having a proximal end and a distal end and a lumen sized to receive the delivery catheter, a portion of the lumen of the sheath being operable from an enlarged inside diameter to a reduced inside diameter to apply an inwardly directed force to the recapture section, such that proximal motion of the sheath enlarges the recapture section; said petal carrier adapted to emerge from said sheath when said sheath is in the enlarged state; said petal adapted to flare and extend radially and be fixed to said sheath when said sheath is in the reduced diameter state; thereby permitting the sheath to advance said petal toward said LAA occlusion device; said sock attachment section adapted to apply traction to said petal carrier thereby applying a force to engage said petals with said barbs.