EXPANDABLE MEDICAL STENT AND METHOD OF ITS IMPLANTATION Russian patent published in 2020 - IPC A61F2/844 A61F2/95 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to expandable intraluminal grafts (stents) intended for installation in a canal or body duct, and used, in particular, for recovery of blood vessels narrowed or occluded due to disease. Delivery facility of the expandable medical stent consisting of a frame, which is a hollow cylinder with a structural element of the frame in the form of a concave hexagon, represents two flexible wires placed coaxially to the stent, one of which is fixed to its distal edge, and the other – to the proximal one. Each of the wires is made with a loop at the end fixed to the corresponding edge of the stent by means of the ring. Ring is connected to the stent carcass by means of a lamella, which withstands a longitudinal load and is destructed at torsion deformation. Method for implantation of said expandable medical stent involves stent implantation and vessel delivery means, wherein after compressed stent delivery to implantation point for its opening, wire of said delivery device is pulled, attached to proximal end of stent in direction from stent center – to itself, and the wire attached to the distal end of the stent is pushed in the direction from the center of the stent from itself, and then torsion of the wires is performed until they are disconnected from the frame.

EFFECT: objective of the present invention is to expand the range of technical means, namely, a stent delivery device and a method which enable to install a stent without occluding the stented vessel.

2 cl, 4 dwg