{HEAD ~ A vision regulation device} for {TAIL ~ a liquid} for irrigation of a body cavity surgical site comprising, 
{ HEAD ~ A vision regulation device } for { TAIL ~ a liquid } for irrigation of a body cavity surgical site comprising ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH