This aorta treatment device is provided with: a branched artificial blood vessel part (10) in which side tubes (11) to (14) extend from a main tube (15)； a stent graft part (20) sutured and joined to the distal side of the branched artificial blood vessel part (10)； and a skirted cuff part (30) that is formed to extend distally from the distal end (16) of the branched artificial blood vessel part (10) and is able to be reversibly turned inside out so as to extend proximally from the distal end (16) of the branched artificial blood vessel part (10). This aorta treatment device enables the aortic arch to be replaced with the branched artificial blood vessel part, can leave the stent graft part in the distal part of the aorta, and allows easier anastomosis of the branched artificial blood vessel part and the distal part of the aorta in comparison to conventional devices.大動脈治療裝置，係具備有：附分支人工血管部(10)，係使側管(11)～(14)從主管(15)而衍生所成；和支架移植物部(20)，係被連結於附分支人工血管部(10)之遠位側處；和裙狀之分支環部(30)，係以從附分支人工血管部(10)之遠位端(16)起而朝向遠位側延伸的方式而被形成，並能夠自由翻轉為從附分支人工血管部(10)之遠位端(16)起而朝向近位側延伸一般的狀態。若依據此大動脈治療裝置，則係能夠藉由附分支人工血管部來將大動脈弓部作置換，並且將支架移植物部留置於遠位側大動脈處，而能夠相較於先前技術之裝置而容易地進行附分支人工血管部與遠位側大動脈之間之吻合。
