Systems, Hubs, And Connector Assemblies For Venous Disease Treatment

Certain aspects of the present disclosure provide techniques for treating the vasculature of a subject. An energy delivery system includes an energy delivery console, a catheter assembly, and a hub disposed within or attached to the catheter cable assembly. The catheter assembly connects to and receives energy from the energy delivery console. The catheter assembly includes first, second, and third heating elements being serially connected with a first number of connections to supply the energy to different configurations of the first, second, and third heating elements. The hub includes a pair of polarity reversing diodes configured to drive the first, second, and third heating elements of the catheter cable assembly with a second number of connections disposed between the energy delivery console and the catheter cable assembly. The second number of connections is one less than the first number of connections.