The narrow spaces between the anatomical structures of the basal cisterns are one of the major challenges in aneurysm surgery. At adeor™, we knew a revolutionary solution was required. The Perneczky Aneurysm Clip™ System is an invention of Dieter von Zeppelin and has been developed in close cooperation with the leading German neurosurgeon Axel Perneczky (†). It became a milestone in Aneurysm Clips usage.