Filling material for treating chronic venous insufficiency and a corresponding insertion method

A tubular device configured to close an insufficient varicose vein of a human patient, comprising:

• a removable control cable, a sheath, and a two-sidedly adhesive tubular material;
• the removable control cable being made of metal, and configured to be inserted into the vein for guiding insertion of the sheath into the vein,
• the sheath having an inner and an outer part longitudinally slidable in relation to one another, the inner part of the sheath having a central tunnel configured to accommodate the removable control cable, and
• the two-sidedly adhesive tubular material having a longitudinal length equivalent to a length of the insufficient varicose vein to be closed and located between the inner and outer parts of the sheath, wherein
• the two-sidedly adhesive tubular material has a diameter that is expandable either in self-acting fashion or as a response to pressure originating from inserted liquid inside the two-sidedly adhesive tubular material and configured to attach to an intima of the vein upon removal of the outer part of the sheath from the vein,
• and the two-sidedly adhesive tubular material is further configured to have adhesive properties created by protrusions on an inner surface upon removal of the control cable and the inner part of the sheath from the vein, wherein the protrusions are configured upon external manual pressing force to the longitudinal length to attach to each other and stick into one another along the longitudinal length and result in a closed cross-section of the insufficient vein along the longitudinal length.