An intravascular device comprising: (a) a delivery catheter having a proximal end, a distal end, a fixed non-round shaped inner lumen, a proximal hub with a "twelve o'clock" marker, a corresponding "twelve o'clock" marker at its distal end, said delivery catheter capable of (i) moving within a blood vessel to a target lesion, (ii) stopping proximal to said target lesion, and (iii) withdrawing from said blood vessel, (b) a packaging catheter with an identical fixed non-round shaped inner lumen, as said delivery catheter, a pusher wire having a proximal end, a distal end, and an occlusion device releasably disposed on said distal end of said pusher wire, preloaded into said packaging catheter at a fixed circumferential orientation, with corresponding markers on the outside of said packaging catheter, (c) said hub having an inner lumen that is shaped to marry with an outer lumen of said packaging catheter, and accepts the outside of the distal end of the packaging-catheter in one of at least 2 different fixed orientations, said packaging- catheter distal end being adapted to deliver said distal end of said pusher wire into the proximal hub of said delivery catheter (d) said pusher wire containing an identical outer shape as the inner shape of the catheters, with a slightly smaller diameter so that with an occlusion device loaded thereon it is capable of slidable passage of said occlusion device through said non-round shaped inner lumen, such that said pusher wire substantially maintains said orientation relative to said delivery catheter during movement of said distal end of said pusher wire through said blood vessel to said target aneurysm, (e) said packaging catheter further being capable of being rotated prior to marrying with the proximal packaging catheter hub port so that said pusher wire and occlusion device therein are rotated simultaneously by the same amount, whereupon said pusher wire and occlusion device can be advanced into said delivery catheter into a predicted orientation of said occlusion device, and maintaining said orientation as it advanced through said delivery catheter, and while said delivery catheter is withdrawn. (a) a delivery catheter having a proximal end, a distal end, a fixed non-round shaped inner lumen, a proximal hub with a "twelve o'clock" marker, a corresponding "twelve o'clock" marker at its distal end, said delivery catheter capable of (i) moving within a blood vessel to a target lesion, (ii) stopping proximal to said target lesion, and (iii) withdrawing from said blood vessel, (i) moving within a blood vessel to a target lesion, (ii) stopping proximal to said target lesion, and (iii) withdrawing from said blood vessel, (b) a packaging catheter with an identical fixed non-round shaped inner lumen, as said delivery catheter, a pusher wire having a proximal end, a distal end, and an occlusion device releasably disposed on said distal end of said pusher wire, preloaded into said packaging catheter at a fixed circumferential orientation, with corresponding markers on the outside of said packaging catheter, (c) said hub having an inner lumen that is shaped to marry with an outer lumen of said packaging catheter, and accepts the outside of the distal end of the packaging-catheter in one of at least 2 different fixed orientations, said packaging- catheter distal end being adapted to deliver said distal end of said pusher wire into the proximal hub of said delivery catheter (d) said pusher wire containing an identical outer shape as the inner shape of the catheters, with a slightly smaller diameter so that with an occlusion device loaded thereon it is capable of slidable passage of said occlusion device through said non-round shaped inner lumen, such that said pusher wire substantially maintains said orientation relative to said delivery catheter during movement of said distal end of said pusher wire through said blood vessel to said target aneurysm, (e) said packaging catheter further being capable of being rotated prior to marrying with the proximal packaging catheter hub port so that said pusher wire and occlusion device therein are rotated simultaneously by the same amount, whereupon said pusher wire and occlusion device can be advanced into said delivery catheter into a predicted orientation of said occlusion device, and maintaining said orientation as it advanced through said delivery catheter, and while said delivery catheter is withdrawn.