Thoracic aorta stent graft with access region

A stent graft for placement in the thoracic arch of a patient, the stent graft comprising a first tubular body portion, a second tubular body portion, and a main lumen extending from the first tubular body portion to the second tubular body portion, the second tubular body portion having a smaller diameter than the first tubular body portion, and at least one aperture in a graft sidewall for receiving a side branch stent graft such that when the stent graft is in a curved state, the at least one aperture is located on or adjacent the outside of the curve,

• wherein the aperture opens into a recess,
• wherein the recess comprises a volume of space bounded by the aperture in the graft sidewall and openings of at least two tubes which extend towards an end of the stent graft,
• wherein openings of the at least two tubes open directly in communication with the main lumen of the stent graft.

A stent graft for placement in the thoracic arch of a patient, the stent graft comprising a first tubular body portion, a second tubular body portion, and a main lumen extending from the first tubular body portion to the second tubular body portion, the second tubular body portion having a smaller diameter than the first tubular body portion, and at least one aperture in a graft sidewall for receiving a side branch stent graft such that when the stent graft is in a curved state, the at least one aperture is located on or adjacent the outside of the curve,

• wherein the aperture opens into a recess,
• wherein the recess comprises a volume of space bounded by the aperture in the graft sidewall and an opening of an internal tube,
• wherein the internal tube is divided along part of its length into at least two smaller internal tubes, and wherein openings of the at least two smaller internal tubes open directly in communication with the main lumen of the stent graft.

A stent graft for placement in the thoracic arch of a patient, the stent graft comprising a first tubular body portion, a second tubular body portion, and a main lumen extending from the first tubular body portion to the second tubular body portion, the second tubular body portion having a smaller diameter than the first tubular body portion, the second tubular body portion having at least one aperture in a graft sidewall for receiving a side branch stent graft such that when the stent graft is in a curved state, the at least one aperture is located on or adjacent the outside of the curve,

• wherein the aperture opens into a recess,
• wherein the recess comprises a volume of space bounded by the aperture in the graft sidewall and an opening of an internal tube,
• wherein the internal tube is divided into three smaller internal tubes extending towards an end of the stent graft, and wherein openings of the three smaller internal tubes open directly in communication with the main lumen of the stent graft.