{HEAD ~ Four holes} 130 are circumferentially spaced about {TAIL ~ the flange} 128 at equal angular intervals for receiving staples, sutures or other suitable fasteners to secure the flange 128 to the external surface of the body wall 
are circumferentially spaced about
{ HEAD ~ Four holes } 130 are circumferentially spaced about { TAIL ~ the flange } 128 at equal angular intervals for receiving staples , sutures or other suitable fasteners to secure the flange 128 to the external surface of the body wall
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH