The peripheral stent is made out of a nickel/titanium alloy (nitinol). The stent is loaded into the delivery system that will release it at the site of implantation. The stent is self-expanding, achieving the diameter it has been designed for once it is released from the delivery device. From that moment on, it remains implanted in the artery, exerting a continuous force on the artery wall to stay open.The stent design is an open-cell. The metal at the stent ends is less dense in artery coverage, and incorporates a series of radiopaque markers to visualize the stent once expanded. The stent delivery system is a coaxial catheter with triple sheath design. For the release of the stent, it is necessary to operate the proximal handle of the delivery system. The handle has a locking mechanism that must be disabled to begin the release. The system ends in a soft, atraumatic tip to avoid damaging the artery during its advance. The stent system iVolution is indicated for the treatment of de novo or restenotic atherosclerotic lesions in peripheral arteries located under the aortic arch and for palliation of biliary tract malignant stenosis with a diameter ranging from 5 to 10 mm.
