Methods for treating a patient using therapeutic renal neuromodulation and associated devices, systems, and methods are disclosed herein. One aspect of the present technology, for example, is directed to bi-directional control of helical- or spiral-shaped neuromodulation devices. A system can include, for example, a catheter having an elongated shaft and a treatment assembly at a distal portion of the elongated shaft. The catheter can further include a first control member configured to deploy a distal region of the treatment assembly and a second control member configured to deploy a proximal region of the treatment assembly. The proximal and distal regions of the treatment assembly are selectively transformable independent of each other.
