| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention relates to medicine, more specifically to cardiosurgery. Distal and proximal parts are exected, as well as a valved device with corresponding valves, commissural zones, atriums and free edges for their subsequent stitching in compliance with the design size of the circle of the reconstructed output section. A virtual three-dimensional model of the prosthetic device is made and displayed on a plane. All elements are exected. The length of the arc of the elements along the line of attachment is the same. The exected valves and distal part are juxtaposed by the visceral side to each other such that, the centres of the atriums and the base of the valve coincide. The proximal part is attached to the base of the valve and all elements are stitched using continuous twisted suture with formation of commissural rods. Atriums in the distal part of the prosthetic device are formed by joining the proximal part with the smallest and the distal part with the largest radius of curvature, measured on the displays. An extra commissural rod is formed when stitching the edges of the distal part of the prosthetic device. ^ EFFECT: improved haemodynamic characteristics of the prosthetic device, reduced risk of fatigue wear of biomaterial and thrombosis on the valved device. ^ 2 cl, 8 dwg |
