Energy sufficient to heat tissue to form {TAIL ~ a denatured proteinaceous substance} is delivered through the lumen to {HEAD ~ the apparatus} 
Energy sufficient to heat tissue to form { TAIL ~ a denatured proteinaceous substance } is delivered through the lumen to { HEAD ~ the apparatus }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD