A catheter includes a flexible shaft having a length sufficient to access a patient’s renal artery relative to a percutaneous access location. In one embodiment, a method of extending the size of a power transistor beyond one integrated circuit includes a master integrated circuit comprising a master control circuit, master driver circuit and master semiconductor switch and one or more slave integrated circuits comprising a slave semiconductor switch and a slave driver circuit. The compounds and their pharmaceutically acceptable salts can be used to prepare pharmaceutical compositions andor medicaments intended to prevent or treat disorders associated with dysfunction of nAChRs, especially within the central nervous system or the gastrointestinal system. The cage may include a plurality of slide receptacles. The fluid barrier has an opening that allows aroma of the fluid to escape from the fluid container without allowing the fluid to escape from the fluid container. The cleaning implement also comprises a liquid delivery system which has a container filled with a cleaning solution and removably attached to a fitment.