{HEAD ~ The power assisted syringe} 1 or 2 wherein said {TAIL ~ valve housing assembly} is connected internally to said plunger assembly 
wherein
{ HEAD ~ The power assisted syringe } 1 or 2 wherein said { TAIL ~ valve housing assembly } is connected internally to said plunger assembly
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH