Various embodiments provide systems and methods for controlling a catheter with a catheter positioning device by using a remote controller. As the catheter is advanced by the catheter positioning device, a counterweight may be adjusted to balance the catheter positioning system. In further embodiments, the counterweight may be configured to move to balance a sled member such that any total moment exerted on a sled base remains constant. In further embodiments, the counterweight may be controlled by a control system based on one or more sensors coupled with the catheter positioning system.
