A system for remotely controlling the positioning within the body of a patient of an elongated medical device optionally having a control handle, comprises a catheter position system and a remote controller configured to control the robotic device. The catheter position system includes a handle controller a sled member coupled to the handle controller, the sled member being configured to position the medical device within the body of the patient and a sled base configured to advance the sled member towards the body of a patient, the sled bed being coupled to a sterile barrier effective to maintain sterility inside the sled base. The catheter position system may include a control system configured to issue positioning commands in response to sensor signals received from the catheter. The catheter position system may also include a motor driven rotatable catheter introducer clamp configured to enable rotation of an introducer.