of the shoulder adjacent to tissue may be roughened or otherwise treated in order to provide an irritant to that tissue so as to cause endothelialization as discussed above such endothelial cells are typically not conductive and thus act as a long term care modality while not required in all implementations various coatings or other agents may be applied or made part of the rings and or helices such coatings or agents capable of disrupting the propagation of aberrant electrical signals or otherwise treating arrhythmias such coatings may include drugs biologics chemicals or combinations that by themselves or in combination with the mechanical compression act as a treatment for hypertension as another example the rings and helices may be coated with tantalum for example a 3 5 micron coating the implant device may be permanent removable or the same may be configured and designed to be absorbed into the body after a period of time in a removable embodiment a removable portion which may be the entire implant device or a portion thereof may be installed for a period of time for example between 30 minutes and 24 hours and then removed other aspects of the invention may include one or more of the following the device may include a contiguous circumferential ring normally perpendicular to the ostium of the vessel and the ring or coil structure may have at least one full rotation as well as a pitch that is gt 1 u00b0 from the first ring the ring or coil.