[Prevention of false routes in vein strippers].

It is possible for the stripper to go in a wrong direction during a stripping. This phenomenon occurs in two cases: it can go out of the lumen of the vein which is to strip (mainly perforations) or penetrate into another vein. The prevention of perforations depends on the quality of the stripper and that of the movement linked to various operations whose aim is to make its penetration easier when it "stumbles". The prevention of penetrations in another vein depends on the quality of the pre-operative cartography achieved by echo-Doppler under per-operative technical precautions.