The energy is delivered from {TAIL ~ the source} to the apparatus in the lumen and onto {HEAD ~ the inner walls} along the incision line to be sealed 
The energy is delivered from { TAIL ~ the source } to the apparatus in the lumen and onto { HEAD ~ the inner walls } along the incision line to be sealed
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH