1. After general anesthesia E, the femoral arteries were dissected bilaterally and prepared for blockage. The left femoral artery was punctured by the Seldinger technique under direct vision and a pigtail contrast catheter with a marker was inserted over the renal artery. 2, imaging observation: the renal artery was well visualized without being affected by the aneurysm, the neck of the aneurysm was about 4 cm long, the maximum diameter of the aneurysm was 5.5 cm, the inferior mesenteric artery was well visualized, both common iliac arteries were dilated with a diameter of about 2.6 cm, the right external iliac artery was involved with a diameter of about 2 cm, the left external iliac artery was fine, and the internal iliac artery was open. The right femoral artery was chosen as the delivery route for the main Zenith conveyor. 3.The right femoral artery was punctured under direct vision and placed into a 5F sheath, and a super-slip guidewire guided the multifunctional catheter into the ascending aorta and exchanged for a super-rigid guidewire. 4.Zenith device equipment: open the outer package, withdraw the stent type vessel main body and delivery system; withdraw the anterior protective guidewire; flush the central lumen and outer sheath tube with heparin saline and evacuate the gas in the delivery device. 5.Place the super-strong guidewire into the delivery system via the femoral artery, adjust the delivery system so that the short arm of the stent-type vessel faces to the opposite side in front, and the marking pattern of the short arm is “√” at this time (the main body enters from the right side). Slowly push the delivery system so that the upper end of the stent-type vessel is marked at the level of the renal artery. 6.Confirm the renal artery by contrast catheterization on the contralateral side, and adjust the upper edge of the stent-type vessel marker to be located under the opening of the renal artery. 7, Hold the pusher firmly in the right hand and partially release the main body stent-type vessel trunk by pulling back the sheath tube in the left hand, and confirm the renal artery opening in relation to the upper edge of the artificial vessel by contrast again. 8, Continue releasing until the short arm of the stent-type vessel is completely open, at which time the bare stent at the head end of the stent-type vessel is still compressed and fixed in the “cap” of the tapered head, while the long arm is still in the sheath of the delivery device. 9.After confirming the patency of the renal artery by contrast, withdraw the contrast tube to the lumen of the tumor and replace the catheter with a guide wire to enter the main body through the short arm and confirm it by contrast. 10.Remove the first safety wire on the main body conveyor, push up the front tapered head and release the bare stent in front. 11.Continue to advance the contralateral guidewire upward to the level of the thoracic aorta, and replace the root with an extra strong guidewire. 12.Place the split stent type vessel and the delivery device via the contralateral femoral guidewire, ensure that the split stent overlaps at least one section of the stent with the short arm and then release it, and recover the push rod. 13.Continue to release the long arm of the main stent vessel, withdraw the second safety guidewire and completely release the long arm, then push the push rod upward, enter the upper part of the stent vessel and tightly unite with the “cap” at the head end, pull out the tapered head and the push rod, retain the sheath tube, and then place the ipsilateral extended stent vessel and delivery system through the sheath tube. After ensuring sufficient overlap above, the extended stent vessel is released. Retrieve the delivery device. 14. The patency of the renal artery, stent-type vessel, and iliofemoral artery was checked by contrast, and there was no endoleak, so balloon dilation was not performed. 15.Retract the contrast tube, guidewire and sheath. The femoral artery and incision were sutured. The patient was returned to the SICU in stable condition and the dorsalis pedis artery was palpable bilaterally postoperatively.