The cutter assembly may be adapted to be moved past a valve closure member for the valve , the assembly furthermore including {TAIL ~ an arrangement} for sterilising the interior of the valve and the outer face of the membrane, and an actuator for moving {HEAD ~ the cutter} in order to pierce the membrane 
The cutter assembly may be adapted to be moved past a valve closure member for the valve , the assembly furthermore including { TAIL ~ an arrangement } for sterilising the interior of the valve and the outer face of the membrane , and an actuator for moving { HEAD ~ the cutter } in order to pierce the membrane
OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH