The distal travel of the repair device is limited by {TAIL ~ the distally opening grooves} of {HEAD ~ the repair device} 
The distal travel of the repair device is limited by { TAIL ~ the distally opening grooves } of { HEAD ~ the repair device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD