Stentless bioprosthetic cardiac valve

Details Stentless bioprosthetic cardiac valve Stentless bioprosthetic cardiac valve

1991-03-15

1992-10-20

Isabella, David

Prosthesis (i.e., artificial body members), parts thereof, or ai

Heart valve

Having rigid or semirigid pivoting occluder

A61F 224

Patent

active

051566214

ABSTRACT:
A self-supporting cardiac valve bioprosthesis of the type fixable to the patient's aortic ring for replacing an explanted valve. The bioprosthesis consists of a tubular body having a flow passageway therethrough and having a proximal and a distal end. A multi-valve obturator is located adjacent the proximal end of the tubular body for closing the flow passageway. Each valve of the multi-valve obturator is capable of rotating about a fulcrum adjacent an outer circumference of the flow passageway. A suture ring is provided having a continuous annular cord forming the fulcrum of each valve of the multi-valve obturator which cord is directly fixable to a patient's aortic ring. A textile coating compatible with the human body coats the outer surface of the tubular body and the continuous annular cord.

REFERENCES:
patent: 3548418 (1970-12-01), Angell et al.
patent: 4084268 (1978-04-01), Ionescu et al.
patent: 4790844 (1988-12-01), Ovil
Navia, J. A. et al., "Low profile bioprosthesis for cardiac valve replacement: hydraulic and hemodynamic studies", Medical Instrumentation, vol. 16, No. 1, 1982.
Yacoub, M. H. et al., "A new technique for replacement of the mitral valve by a semilunar valve homograft," J. of Thoracic and Cardiovasc. Surgery, vol. 58, No. 6, pp. 859-869, Dec. 1969.
Athanasuleas, C. L. et al., "The autologous rectus sheath cardiac valve," J. of Thoracic and Cardiovasc. Surgery, vol. 65, No. 1, pp. 118-123, Jan. 1973.
O'Brien, M. F. et al., "Heterograft aortic valves for human use," J. of Thoracic and Cardiovasc. Surgery, vol. 53, No. 3, pp. 392-397, Mar., 1967.

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