| abstract |
Vein sheath (100) for the restoration of the venous valve function of varicose veins, in the form of a flat sheath piece, characterized in that the flat sheathing piece has at least two substantially mutually parallel marking means, wherein the at least two marking means have a mutual distance, which is substantially the External circumferential length of a vein having a substantially intact venous valve function, the flat sheath piece leg-shaped extensions (106), the flat sheath piece has a substantially rectangular basic shape and on a narrow side (102) of the basic shape has a U-shaped cutout (104) whose Width corresponds to the outer diameter of a vein to be coated. |