| 摘要 |
PCT No. PCT/GB83/00088 Sec. 371 Date Nov. 25, 1983 Sec. 102(e) Date Nov. 25, 1983 PCT Filed Mar. 24, 1983 PCT Pub. No. WO83/03347 PCT Pub. Date Oct. 13, 1983.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 (3,4 or 5) 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. |
