| 摘要 |
<p>A vascular prosthesis intended to act as a substitute blood vessel comprises a porous corrugated tube (1) of textile material presenting a pattern of a series of axially disposed markings on the corrugations (2) so disposed that the appearance of the pattern changes when the prosthesis is extended. The change in the appearance of the pattern as the tube is extended provides an indication to the user when the prosthesis has been extended to the desirable extent.</p> |
