[Functional characteristics of flexible supporting structures for heart valve bioprosthesis].
Hydraulic characteristics of heart valve bioprostheses mounted on supporting structures of various rigidity have been studied under physiologic conditions. An actual mobility of the supporting structures made of different polymers is determined. Static and dynamic components of the support displacements have been shown to develop as the bioprosthesis is under the load, the dynamic component being strongly dependent upon the rigidity of fastening the bioprosthesis on the axis. It is noted that considerable improvements in hydraulic characteristics of bioprostheses are achieved through the use of flexible supporting structures.
D001696:Biomechanical Phenomena; D001705:Bioprosthesis; D004548:Elasticity; D006350:Heart Valve Prosthesis; D006801:Humans; D006874:Hydrostatic Pressure; D008943:Mitral Valve; D008955:Models, Cardiovascular; D010795:Phthalic Acids; D011091:Polyesters; D011092:Polyethylene Glycols; D011093:Polyethylene Terephthalates / Q000031:analogs & derivatives; D011126:Polypropylenes; D011786:Quality Control
D010795:Phthalic Acids; D011091:Polyesters; D011093:Polyethylene Terephthalates; D011126:Polypropylenes; C025539:Lavsan; C041733:poly(1,4-butylene terephthalate); D011092:Polyethylene Glycols
Issledovanie funktsional'nykh kharakteristik gibkikh opornykh bioprotezov klapanov serdtsa.