The utility model provides an intracavity seals support suitable for a type aorta intermediate layer, includes that the straight cartridge type support of being made by nickel titanium alloy silk reaches attached to the outer tectorial membrane of support, its characterized in that, and the parcel pours into and uses internal capsule outside straight cartridge type support, and internal capsule laminates together through heat seal or bonding mode with the contact surface of support, has poured into the poly thing through filling hole among the internal capsule. The beneficial effects of the utility model are that, can successfully seal the stanford A type aorta intermediate layer that the cut is located ascending aorta, reduce complication such as interior hourglass and branch's support stop up, remain innominate artery, left arteria carotis communis and the normal blood of left subclavian artery to supply, make wicresoft's intervention treat stanford A type aorta intermediate layer enable, expansion intervenes the indication of treatment.