Olesen, O. V. (Inventor), Larsen, R. (Inventor), Paulsen, R. R. (Inventor) & Højgaard, L. (Inventor), 2013, IPC No. A61B5/00; A61B5/11; A61B6/00; G01R33/48; G01R33/565, Patent No. WO2013174980A1, 28 Nov 2013, Priority date 25 May 2012, Priority No. EP20120169670