A medical implant for a left atrial appendage may include a central member having an anchor at a distal end and a plurality of legs joined together at a joint coupled to the central member. The plurality of legs may be configured to expand from a delivery configuration to a deployed configuration. A medical implant may include a central shaft having an anchor at a distal end and a cup-shaped occluder fixed to a proximal end of the central shaft, the occluder being configured to expand from a delivery configuration to a deployed configuration and retard tissue ingrowth thereon. A medical implant system may include a delivery sheath, an implant having an expandable frame including a plurality of legs each having an anchor and a mesh having a plurality of openings therethrough attached to the frame, and a plurality of particles disposed within the delivery sheath.