Left atrial appendage closure devices

Abstract

A left atrial appendage closure (LAAC) device includes an expandable anchor frame and an expandable foam body. The anchor frame expands from a delivery configuration to an expanded anchor configuration, while the foam body expands from a compressed configuration to an expanded configuration. The expansion of these components is temporally offset from each other. The device may include an intermediate structure joining the anchor frame to the foam body. The anchor frame can be actuated through translation or rotation relative to other components. In some embodiments, the foam body expands before the anchor frame. The anchor frame may include struts extending between a threaded distal hub and a secured proximal hub, with expansion achieved through rotation. The device enables controlled deployment for occluding a patient's left atrial appendage.

Dependencies are inferred from the claim text.