{HEAD ~ The spring element} 44 of FIG 4 is held in {TAIL ~ the restrained position} by the shape memory material release mechanism 48 that has been deformed in the martensitic state to form of a hook or loop 
{ HEAD ~ The spring element } 44 of FIG 4 is held in { TAIL ~ the restrained position } by the shape memory material release mechanism 48 that has been deformed in the martensitic state to form of a hook or loop
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL 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