Artificial tendon or ligament with varying stiffness along its length

Tendon or ligament with an elongated body comprising a flexible median part and at least one end part showing a different tensile stiffness from that of the median part, said body having a fibrous structure formed from biocompatible fibers having a diameter superior to 0.1 μm, said fibers forming the body of the device wherein the median part comprises a tubular cage placed around a central core comprising fibers.