BIOLOGICAL ATRIOVENTICULAR HEART VALVE AND METHOD FOR MAKING THEREOF Russian patent published in 2009 - IPC A61F2/24 

FIELD: medicine; cardiovascular surgery.

SUBSTANCE: valve contains a frame with a carrier ring corresponding with the natural shape of fibrous ring of human valve, a rack and an obturative shutter element attached to the frame. The carrier ring of the frame is segmented on perimetre, while the rack supports are V-shaped and interfaced to the ends of the specified segments of the carrier ring. The racks are provided with platforms to fix the tips of papillary muscles. The method consists that the carrier ring is segmented by number of racks. And the racks rest on the V-shaped bottoms to connect to the related segments of the carrier ring. The racks are supplied with platforms to fasten papillary muscles. The fibrous ring is fixed to the carrier ring of the frame all around, and the tips of papillary muscles are additionally reinforced with a biocompatible flap and fastened to rack platforms. The biocompatible material is used to make an attached cuff sutured to fibrous ring.

EFFECT: inventions allow for deformation of fibrous ring within heart cycle in conformity with deformations of fibrous ring of the recipient.

5 cl, 10 dwg, 1 tbl