ENDOVASCULAR DEVICE FOR DYSFUNCTIONAL FISTULAS

摘要

The endovascular device (1 ) according to the invention comprises a first tubular sheath in turn comprising a fibrous layer (5) made of a fibrous material containing a coherent assembly of fibers. The ends of the device (1) form two expansion sections (7A, 7B) each of which in turn comprises an expander device (70) arranged to radially expand the endovascular device (1) at least in correspondence with the respective expansion section (7A,7B). The fibrous layer (5), in particular in correspondence with the intermediate section (11 ) is, on the other hand, prickable and capable of quickly closing and resealing the holes produced by the needles for dialysis, transfusions or injections. This feature allows (20) compared to current devices, to treat malfunctioning dialysis fistulas and to avoid the exclusion of a part of the superficial venous circuit potentially usable for the hemodialysis session, so that the device being a maintenance device for fistulas from dialysis.