Upon expulsion from the catheter, the wire frame structure resiliently or pseudoelastically expands into a flow through rivet comprising {HEAD ~ a tube} with {TAIL ~ expanded heads} at either end 
with
Upon expulsion from the catheter , the wire frame structure resiliently or pseudoelastically expands into a flow through rivet comprising { HEAD ~ a tube } with { TAIL ~ expanded heads } at either end
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH