#$%^&*AU2012258498B220150205.pdf#####ABSTRACT An actuator for a heart assist device (10). The actuator comprises (a) a restraint component (14) comprising a hole and (b) a flexible balloon (12). The flexible balloon comprises (i) a tubular neck portion (18) disposed through the hole in the restraint component, (ii) a first body portion (22) coupled to the neck portion, wherein the first body portion is unattachedly disposed adjacent to the restraint component, (iii) a second body portion (26), and (iv) a flexure portion (24) coupled to the first body portion and the second body portion. The balloon comprises an inflated configuration and a deflated configuration in which at least a portion of the first body portion is displaced inwardly away from the restraint component.
