The combination of narrowband applications with broadband transport may be enabled by implementing a hybrid switch capable of operating as a narrowband switch, a broadband switch, andor a combination narrowbandbroadband switch. In particular, the invention relates to the delivery of different therapeutic agents, different quantities of therapeutic agents, or different release profiles of the same or different therapeutic agents in different directions from the drug delivery device. The SEV also integrates the conversion of power from various sources, to various storage or power consumption devices.