Patent ID: 8778021

Claim:
An implantable device system for controlling at least one of a shape and size of an anatomical structure or lumen, comprising: an implantable device adapted for attachment to an anatomical structure or lumen, said implantable device comprising an adjustable member configured to adjust at least one of a shape and size of the implantable device; an adjustment tool configured to be coupled to the adjustable member such that the adjustment tool can be used to activate and control adjustment of the implantable device; an attachment mechanism coupled to the implantable device and configured to attach the implantable device to the anatomical structure or lumen, and wherein the attachment mechanism permits repeated repositioning of the implantable device with respect to the anatomical structure or lumen, the attachment mechanism comprising: a resilient layer having first and second opposing surfaces; a moveable retainer ring guide supported on the first surface of the resilient layer adjacent the implantable device; a plurality of retainers attached to the retainer ring guide and extending into the resilient layer, whereby compression of the resilient layer by movement of the retainer ring guide causes a portion of the retainers to extend outwardly beyond the second surface of the resilient layer; and a rigid retainer guide positioned adjacent the second surface of the resilient layer for receiving an end of one of the retainers, the retainer guide configured as a stop member for limiting a distance between the second surface of the resilient layer and the retainer ring guide upon compression of the resilient layer by the retainer ring guide.