A method for inducing weight loss in a patient by providing an implant for placement within the stomach. The implant having a member with an undeployed shape for delivery to the stomach and a deployed shape for implantation therein. The member has a plurality of links pivotably connected to each other, and a flexible elongated tether connected to the member. The method then involves delivering the member to the stomach while in its undeployed shape, and placing the member in its deployed shape by applying tension to the tether. The method also involves exerting an outward force against an interior of the stomach so as to bring together two substantially opposing surfaces of the hollow body by placing the member in its deployed position.