The dilation tube includes {HEAD ~ a tubular braid} which usually comprises a mesh of non elastic filaments which are radially expandable from a small diameter configuration to {TAIL ~ a large diameter configuration} and which is optionally covered by a removable sheath 
The dilation tube includes { HEAD ~ a tubular braid } which usually comprises a mesh of non elastic filaments which are radially expandable from a small diameter configuration to { TAIL ~ a large diameter configuration } and which is optionally covered by a removable sheath
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH