The peculiarity of the handle is that its morphological characteristics allow several different grips according to {TAIL ~ the peculiar surgical situation} in which {HEAD ~ the scalpel} is used 
The peculiarity of the handle is that its morphological characteristics allow several different grips according to { TAIL ~ the peculiar surgical situation } in which { HEAD ~ the scalpel } is used
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL