[IEEE 2018 7th IEEE International Conference on Biomedical Robotics and Biomechatronics (Biorob) - Enschede, Netherlands (2018.8.26-2018.8.29)] 2018 7th IEEE International Conference on Biomedical Robotics and Biomechatronics (Biorob) - A Stiffness-Changing Continuum Robotic Manipulator for Possible Use in MRI-Guided Neurosurgical Interventions