ДЕРЖАТЕЛЬ ДЛЯ ПРОТЕЗА КЛАПАНА СЕРДЦА

摘要

FIELD: medical engineering. ^ SUBSTANCE: device has two leaflets. The leaflets are mounted on finger member allowing rotation about artery axle and have working ends and shank. The working ends have fitting surfaces restricted with thrusting and holding ribs. A holding rib has internal and external end surface. The external end surface of holding rib of each leaflet has protrusions having centering surfaces manufactured as portions of the same revolution surface having diameter of Dc. Revolution surface axis coincides with the central axis of the holder. ^ EFFECT: excluded valve displacement relative to fibrous ring; reduced risk of canal dysfunction; improved long-term prosthetic operation results. ^ 3cl, 4 dwg