A prosthesis for endovascular treatment of Aneurysmal disease of the aortic arch and proximal Descending thoracic aorta Disc, and an Instrument for manoeuvring and Positioning the Prosthesis

摘要

A prosthesis for endovascular treatment of Descending thoracic aorta Aneurysmal disease of the proximal and distal aortic arch and an Instrument for manoeuvring and Positioning the prosthesis in an anatomically Complex area as is the proximal aorta and the aortic arch, ensuring Correct positioning and effective release of the Prosthesis,Commonly known as u00f4stent graftu00f6. The prosthesis comprises a tubular Valve endoskeleton metal wire type u00f4z - stentu00f6 Mesh coated with a biocompatible material.Proximally and distally in the structure of the main body of the Prosthesis are defined in respective Extensions endoskeleton diametrically Self expanding Mesh free, biocompatible in the distal end and partially uncovered in the proximal end defining a sector lib Re Mesh.In the vicinity of the proximal end of the main body of the Prosthesis has two lateral branches tubular integral and inseparable part of the main body of the Prosthesis.The proximal end of the Prosthesis includes Radio opaque markers in accordance with certain points of the perimeter of the sector limits free mesh, so that its distal end and both side branches.The Instrument comprises a mandrel introducer housed in an inner Sheath that covers the entire Body of the Prosthesis and an outer Sheath disposed on the previous deslizantemente covering both side branches, which in turn are retained in two Capsules of containment,In this way the Prosthesis being trapped in compressed form between the mandrel and the Inner and Outer sheaths.A First retaining Capsule is designed to the Side Branch nearest to the proximal end of the Stent Graft to the left Common carotid artery, while retaining a Second Capsule is used for Branch distal to the proximal end of the Stent Graft. Corresponding to the left subclavian artery.In the Interior of the mandrel and introducer of the first and second containment capsules are defined for the respective channels of the corresponding step and slide Wire GuideThe mandrel introducer has two Side holes in the vicinity of its distal end to output the guide Wire into the ducts of the first and second Capsules containing the respective lateral branches, and an opening at the distal End (soft tip of) Q EU gives way to the conductor Wire of the Prosthesis.The Inner Sheath in the distal sector presents a longitudinal Recess which extends to the position corresponding to the opening of the second birth of most distal lateral Branch of the Prosthesis.