Medical device for modification of left atrial appendage and related systems and methods

A method for modifying a left atrial appendage (“LAA”) of a heart, the method comprising:

• anchoring a medical device in the LAA with a delivery catheter coupled to a hub of the medical device such that the medical device includes a moveable portion positioned adjacent the hub and moveable between an open first position and a closed second position, the moveable portion in the open first position with the delivery catheter coupled to the medical device, the moveable portion having a spring element adjacent the hub and biased toward a flat configuration;
• and
• detaching the delivery catheter from the hub of the medical device such that the moveable portion adjacent the hub automatically moves to the closed second position to close-off the hub of the medical device.

A method for closing-off an opening, the method comprising:

• anchoring a medical device in the opening with a delivery catheter coupled to a hub of the medical device such that the medical device includes a moveable portion positioned adjacent the hub, the moveable portion being moveable between an open first position and a closed second position, the moveable portion being in the open first position with the delivery catheter coupled to the medical device, the moveable portion having a spring element positioned adjacent the hub and biased toward the closed position;
• and
• detaching the delivery catheter from the hub of the medical device such that the spring element adjacent the hub automatically moves the moveable portion to the closed second position to cover a proximal side of the hub of the medical device.