| 摘要 |
Bifurcated aortic prosthesis has main tube (3) divided into two legs (4,5) of same length. Prosthesis is of shape memory material. As sealed envelope (6) completely covers legs and part of main tube. Envelope has length (L) selected to cover part of aorta (AO) between renal arteries and iliac arteries. Length between legs is between one quarter and two fifths of length of envelope, preferably about one third. |
