Device for treating aortic dissection

A method of treatment of a false lumen of an aortic dissection comprising the steps of

• a) loading a stent assembly onto a deployment device, the stent assembly comprising a plurality of self expanding stents linked together and defining an elongate substantially cylindrical lumen wall engaging surface, the deployment device including a retention arrangement to retain the proximal end of the stent assembly in a retracted state and a trigger wire arrangement to release the retention arrangement to thereby release the proximal end of the stent assembly, a sheath to retain the entire stent assembly in a retracted state and means to withdraw the sheath,
• b) endovascularly deploying the deployment device with the stent assembly loaded thereon to the site of the false lumen,
• c) withdrawing the sheath to expose the stent assembly such that it provides pressure against the wall of the lumen,
• d) releasing the proximal end of the prosthesis by means of releasing the trigger wire arrangement, and
• e) withdrawing the deployment device.

A method of treatment of aortic dissection disease comprising a two stage process to close off a rupture associated with the aortic dissection and to apply pressure to a false lumen associated with the aortic dissection, the method comprising the steps of;

• a) endovascularly deploying a first deployment device with a stent graft retained thereon to the site of the aortic dissection,
• b) checking by radiographic techniques that the stent graft is positioned over the site of the rupture,
• c) deploying the stent graft from the first deployment device,
• d) withdrawing the first deployment device,
• e) endovascularly deploying a second deployment device with a stent assembly loaded thereon to the site of the false lumen, the stent assembly comprising a plurality of self expanding stents linked together and defining an elongate substantially cylindrical lumen wall engaging surface, the deployment device including a retention arrangement to retain the proximal end of the stent assembly in a retracted state and a trigger wire arrangement to release the retention arrangement to thereby release the proximal end of the stent assembly, a sheath to retain the entire the stent assembly in a retracted state and means to withdraw the sheath,
• f) withdrawing the sheath to expose the stent assembly such that it provides pressure against the wall of the lumen,
• g) releasing the proximal end of the prosthesis by means of releasing the trigger wire arrangement, and
• h) withdrawing the second deployment device.