Patent ID: 7578839

Claim:
A method for releasing an aortic prosthesis, which comprises: positioning an introducer in femoral arteries of a patient; providing guiding balloon catheters with depth graduations and balloons; positioning the guiding catheters through the introducers to locate the balloons in terminal parts of common iliac arteries; clamping the proximal aorta, inflating the balloons of the guiding catheters, and opening the aorta for access from outside the vessel; threading distal ends of releasing balloon catheters through the guiding catheters and recovering the distal ends of the release catheters outside the patient; connecting distal ends of releasing catheters to distal portions of a prosthesis; moving the prosthesis until distal portions of the releasing catheters contact the guiding catheters; suturing a proximal part of the prosthesis to the aorta; inflating the balloons of the releasing catheters to fix the distal portions of the prosthesis; deflating the balloons of the releasing catheters and removing the releasing catheters; deflating the balloons of the guiding catheters and removing the guiding catheters; suturing the aorta; and removing the introducers.