The punch consists of a new sterilizable Vacuum Punch mount, ultra-sharp, precise Single Use trephines and Single Use trephine cutting blocks. punch2 The Gebauer DSAEK Vacuum Punch is used for trephination of a very precise donor disc with smooth edges for corneal transplantation surgery. The system is easy to use and its advantage is comfortable and quick assembly without touching the ultra-sharp trephine blade. This advanced design assures safe assembly and avoids the risk of injury or damaging the blade.