• Male and female age ≥ 18.

• Proximal/ascending native or previously implanted surgical graft landing zone of appropriate length

• Proximal/ascending native or previously implanted surgical graft landing zone of appropriate diameter

• Distal/descending native landing zone of appropriate length

• Distal/descending native landing zone of appropriate diameter

• Brachiocephalic trunk native landing zone of appropriate length

• Brachiocephalic trunk native landing zone of appropriate diameter

• Appropriate take off angle between the Brachiocephalic Artery and the Aortic Arch perpendicular

• Appropriate aortic arch perpendicular diameter

⁃ Chronic dissection with at least one of the following conditions:

∙ An aortic aneurysm with a maximum diameter ≥ 55 mm

‣ Rapidly expanding false lumen (growth of \> 0.5 cm/6 months)

‣ Compressed true lumen associated with end organ malperfusion

‣ Symptomatic

⁃ Aneurysm with at least one of the following conditions:

∙ Dilatation of the aortic arch larger than 5 cm in diameter for subject with fusiform aneurysm

‣ Dilatation of the aortic arch is 1.5 times the normal diameter for subjects ascending or descending

‣ Dilation of the aortic arch larger than 2.5 cm for subject with saccular aneurysm

‣ Symptomatic aneurysm of the aortic arch

‣ Aortic diameter growth rate \> 5mm per 6 months

‣ Postoperative pseudoaneurysm expanding from anastomotic suture lines

⁃ Penetrating aortic ulcer with at least one of the following:

∙ Symptomatic

‣ Ulcer demonstrates expansion

⁃ Intramural hematoma with at least one of the following:

∙ Symptomatic (persistent pain)

‣ Transverse or longitudinal expansion on serial imaging

⁃ In the event of a lesion in the ascending aortic, the proximal/ascending native or previously implanted surgical graft the landing zone must be appropriate

⁃ Femoral / iliac artery diameter as documented by CTA or MRA that allows endovascular access to the diseased site with a 20 Fr. delivery catheter.

⁃ Access vessels morphology suitable for endovascular repair in terms of tortuosity, calcification and angulation, documented by CTA/MRA.

⁃ Brachial/Axial Artery diameter that allows endovascular access suitable for 7 Fr.

⁃ Subject is considered an appropriate candidate for an elective surgery.

⁃ Subject is considered to be at high risk for open repair, as determined by the investigator.

⁃ Access vessels, iliac/femoral \& brachial/axillary compatible with vascular access techniques (femoral cutdown or percutaneous), devices, and /or accessories.

⁃ Subject is willing and able to comply with procedures specified in the protocol and is able to return for follow-up visits as specified by the protocol.