| 摘要 |
<p>A vascular prosthesis, designed to be anastomosed to a lateral or terminal aperture in a duct (1) or blood vessel, has a collar (9) with an annular layer (9) and free edge (9a) made to be positioned immediately adjacent to the aperture. The collar is shaped to fit against the inner or outer surface of the aperture while keeping its free edge (9a) adjacent to the edge of the aperture. After fitting, the edges of the collar and aperture can be joined together by a series of clips (11). For an end-to-end anastomosis the collar can be doubled over on the outside of the prosthesis and positioned inside the duct so that their edges are aligned to receive the clips.</p> |
