Wire coronary stents

Application: the original structure of stent is intended for X-ray endovascular interventions in the treatment of arterial vessels stenosis. The aim of coronary stenting is to deliver onto a balloon-catheter or special device of metallic frame (stent) in place of preliminary dilative stenosis of coronary arteries or bypass and installing it by blowup of the balloon with subsequent stretching of the stent to the required size and rigid fixation in the given position in the vessel.

Advantages: wire stents are flexible (facilitating them through the convoluted plots of the arteries) and transparency – cover from 8 to 20 % of the inner artery wall (this allows them to be implanted into ar­eas with discharge of lateral branches), they do not change their size during implantation in length, have sufficient deformation rigidity, eliminating the development of re-stenosis during the growth of atheromatous plaques.

Key features: wire made of steel 316L with diameter 160–200 μm is used in the proposed technology of stents manufacturing; diameter of the stent in collapsed state – 1.6 mm; diameter of the stent in ex­panded state – 7–12 mm; length of stent – 20–40 mm.

Developed: Research Laboratory of Semiconductor Technique and Department of Device Design and Manufacture in collaboration with Research and Practical Center of Cardiology, Supervisors – Prof. Dr. Vladimir Minchenya, PhD., Prof. Dr. Alexander Mrochek, MD.

Tel.: +375 17 292 40 81, e-mail: nil_pt@bntu.by.