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