The assembly 78 comprises {HEAD ~ a tubular housing} 79 which contains {TAIL ~ an axially movable cutter} 40 for cutting the membrane 6, an actuator for moving the cutter, and means for sterilising the interior of the valve body, and the outer face of the membrane 6 
contains
The assembly 78 comprises { HEAD ~ a tubular housing } 79 which contains { TAIL ~ an axially movable cutter } 40 for cutting the membrane 6 , an actuator for moving the cutter , and means for sterilising the interior of the valve body , and the outer face of the membrane 6
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH