A method for preventing veisalgia wherein an extract is prepared from artichoke and sarsaparilla containing a complex of polyphenols, flavonoids, and phytosterols. The method further includes generating a unidirectional direct current or a first bias voltage having a first polarity to cause the current-controlled switch to substantially form a conduction channel between the primary antenna and the auxiliary antenna portion. A first and second pump chamber are disposed within the ring, separated by the rotor, vanes, pressure plate and thrust plate, the first pump chamber configured to discharge fluid to the first discharge port and the second pump chamber configured to discharge fluid to the second discharge port. Hub may have a visual indicator such as being same color as barrel’s marks. The delivery catheter can be advanced though a small incision to the target tissue site, and the site remotely visualized through the fiber optic scope extending through the lead head aperture. The data link may allow the exchange of information between the client device and the control device without an intermediate network node.