A biocompatible endoluminal articulated support structure , comprising: a tubular structure comprising: a first central lumen ; a first central axis; a plurality of first discrete inner struts (2511-1); a plurality of first discrete outer struts (2511-2); and a plurality of discrete commissure struts ; wherein each of the plurality of first discrete inner struts (2511-1) and the plurality of first discrete outer struts (2511-2) comprises a first end, a second end, and a net length therebetween; wherein each of the plurality of first discrete inner struts (2511-1) comprises articulations with at least three different discrete outer (2511-2) or commissure struts of the pluralities of first discrete outer and commissure struts; wherein each of the plurality of first discrete outer struts (2511-2) comprises articulations with at least three different discrete inner (2511-1) or commissure struts of the pluralities of first discrete inner and commissure struts; wherein each of the plurality of discrete commissure struts comprises articulations with one discrete outer (2511-2) or inner (2511-1) strut of the pluralities of first discrete outer and inner struts and with one other discrete commissure strut of the plurality of discrete commissure struts; wherein no discrete inner strut (2511-1) of the plurality of first inner struts comprises articulations with any other discrete inner strut of the plurality of first discrete inner struts; and wherein no discrete outer strut (2511-2) of the plurality of first discrete outer struts comprises articulations with any other discrete outer strut of the plurality of first discrete outer struts. a first central lumen ; a first central axis; a plurality of first discrete inner struts (2511-1); a plurality of first discrete outer struts (2511-2); and a plurality of discrete commissure struts ; wherein each of the plurality of first discrete inner struts (2511-1) and the plurality of first discrete outer struts (2511-2) comprises a first end, a second end, and a net length therebetween; wherein each of the plurality of first discrete inner struts (2511-1) comprises articulations with at least three different discrete outer (2511-2) or commissure struts of the pluralities of first discrete outer and commissure struts; wherein each of the plurality of first discrete outer struts (2511-2) comprises articulations with at least three different discrete inner (2511-1) or commissure struts of the pluralities of first discrete inner and commissure struts; wherein each of the plurality of discrete commissure struts comprises articulations with one discrete outer (2511-2) or inner (2511-1) strut of the pluralities of first discrete outer and inner struts and with one other discrete commissure strut of the plurality of discrete commissure struts; wherein no discrete inner strut (2511-1) of the plurality of first inner struts comprises articulations with any other discrete inner strut of the plurality of first discrete inner struts; and wherein no discrete outer strut (2511-2) of the plurality of first discrete outer struts comprises articulations with any other discrete outer strut of the plurality of first discrete outer struts. <EOS>