1. Institute for Dynamic Systems and Control, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
2. Therapeutic Technology Design and Development Group, Department of Mechanical Engineering and Institute for Medical Engineering and Science, MIT, Cambridge, USA
3. Product Development Group Zurich, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
4. Preclinical Development, University Hospital Zuricht, University of Zurich, Zurich, Switzerland
5. Department of Neurosurgery, University Hospital Zurich, Zurich, Switzerland