Endovascular Aortic Valve Prosthesis Delivery System

摘要

FIELD: medicine.SUBSTANCE: endovascular delivery system for the aortic heart valve prosthesis consists of the working tube with a handle with controls at the proximal end, and a conical tip and a protective cover at the distal end, the cover contains an inner holder to accommodate the aortic heart valve prosthesis. The conical tip comprises three longitudinal slots, each having a fastener in the form of a hollow tube. The radial groove formed at the tip, has an annular spring configured to compress the fasteners. The spring is fixed with at least three brackets located between the longitudinal slots; the working tube wall has at least three longitudinal channels, each containing a wire to connect the working tube and fastener with the aortic heart valve prosthesis frame. One end of each wire is fixed by a control and the other is intended for fixation of the aortic heart valve prosthesis frame fastener. At the proximal end of each clamp an U-shaped slot is made for release connection of wire stretched within the retainer with the aortic heart valve prosthesis frame fastener, the fasteners are fixed annularly inside the conical tip body.EFFECT: provision of controlled aortic valve prosthesis implantation.2 cl, 6 dwg