Abstract: A prosthetic device for creating a vascular bypass from an arterial vessel has at least one prosthetic tube joined to an orifice of a flexible collar. The prosthetic tube extends from an outer face of the collar. The collar has an inner face surface for attachment to the arterial vessel. The collar has a connection zone has an annular cavity extending around and away from the orifice. The annular cavity is suitable for receiving an injected glue or bioabsorable haemostatic product so as to attach to the arterial vessel.

Abstract: The invention relates to a surgical instrument for the ablation of diseased veins, particularly saphenous veins. The surgical instrument includes a stripping member or olive-shaped member, a traction probe, and a return thread, which can be used to move the olive in opposite directions. In addition, the anterior part of the olive, according to the direction of movement of same during the application of the operating method, is equipped with an axial cavity which is open at the front end of the anterior part, so as to define a circular stripping lip. The stripping olive includes an essentially-cylindrical anterior part and a posterior part having a circular cross-section, which are defined by a circular recess. The circular front end of the posterior part has a diameter greater than that of the anterior part.