form a sealing engagement with the intimal surface of the vessel 31 thus the graft 35 is completely installed in the vessel 31 forming an internal shunt across the aneurysm 32 that carries blood flow past the diseased portion of the vessel and eliminates the opportunity for hemorrhage with regard to fig8 the end cap 63 is disengaged from the proximal ends of the peripheral struts 54 by extension of the central strut 62 proximally the compressional forces acting on the struts 54 are released and the radial expansion of the struts 54 is significantly diminished in addition the proximal ends of the struts 54 by virtue of their lack of attachment to any other component are free to be withdrawn past the fastener assemblies 71 and freed of any incidental entanglements therewith this action is carried out by retracting the strut support 53 while the tube 52 remains in place the struts 54 are thus withdrawn distally into the tube 52 collapsing the struts 54 radially into the lumen of tube 52 thereafter the end cap 63 is withdrawn distally by the central strut 62 as depicted previously in fig6 so that the catheter assembly 33 is in condition to be withdrawn completely from the vessels 31 and 81 the result as shown in fig9 is a completed aneurysm repair note that.