METHOD FOR MANUFACTURE OF VALVE-CONTAINING CONDUIT AND VALVE-CONTAINING CONDUIT, MANUFACTURED BY THIS METHOD Russian patent published in 2018 - IPC A61F2/04 

FIELD: medicine.

SUBSTANCE: in the manufacture of a valve-containing conduit, its tubular body is produced by cutting off a chemically stabilized venous vessel, followed by cross-cutting and subsequent longitudinal dissection of the wall of one part of the vessel that is flattened, then at least one arcuate notch is provided at the end of the tubular part 3 of the vessel , oriented along the vessel longitudinal axis, corresponding to the direction of the elastic and collagen fibers of the middle shell, and the dissected part 2 of the vessel is turned by 90° relative to the tubular part axis, and at least one arcuate protrusion on the lateral edge, oriented transversely to the direction of the elastic and collagen fibers of the middle shell of the dissected portion of the vessel, is performed at least under one end arcuate notch of the tubular portion. From a single tissue flap, a blank of at least one valve flap is made, which is sutured together with at least one arcuate protrusion of the dissected portion on the endothelium side with capture of all tissue layers, the arcuate protrusions of the dissected part are sutured from the adventitia side with arcuate notches of the tubular part of the vessel with simultaneous formation of sinuses and commissures and the dissected part of the vessel is sutured.

EFFECT: group of inventions provides adequate blood flow in the valve-containing conduit in the pressure ranges developed by the heart ventricles, reduces the risk of valve area dilatation and significant regurgitation on the valve while maintaining conduit walls elasticity for convenience of its positioning and implantation.

16 cl, 2 dwg, 1 ex