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