Description  Claims  Drawing  Cited references 

EP2896540A   [0003]  [0004] 
EP2935948A   [0006]  [0006]  [0028] 
WO2017063864A1   [0007] 
DE9204417U1   [0024]  [0053] 
WO2014096446A   [0028] 
WO2010066864A   [0049]