An implantable device system for controlling the dimensions of internal a natomic passages corrects physiologic dysfunctions resul from a structural l umen which is either too large or too small Implantable devices are disclose d which employ various mechanism adjusting and maintaining the size of an or ifice to which they are attached (102) Systems permit the implants to be imp lanted usin minimally invasive procedures and permit final adjustments to th e dimensions of the implants after the resumption of normal flow anatomic fl uids in situ.
