{TAIL ~ The tubular braid} is anchored by axial shortening of {HEAD ~ the mesh} and remains in place to permit subsequent exchange of dilation members to provide for different diameter access lumens 
{ TAIL ~ The tubular braid } is anchored by axial shortening of { HEAD ~ the mesh } and remains in place to permit subsequent exchange of dilation members to provide for different diameter access lumens
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH