Cardiac valve

Details Cardiac valve Cardiac valve

1994-08-17

1996-03-19

Isabella, David

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

Heart valve

Having rigid or semirigid pivoting occluder

623901, 83679, A61F 206, B26D 100

Patent

active

055000150

ABSTRACT:
A cardiac valve comprises a plurality of flexible trapezoidal membranes, each having an edge joined to an edge of another of the membranes to form an unsupported frusto-conical body. The body has an oval end portion and a plurality of flexible flap portions integral with and extending from the end portions, the flap portions being formed by substantially parabolic scallops. The membranes are so sized, and the scallops are so positioned as to form flap portions of unequal size. The flexible membranes may be provided to the surgeon as separate membranes for construction of the artificial valve, or the valve may be provided to the surgeon as a complete unit. Alternatively, the surgeon may construct a valve using pericardium mapped and sized in accordance with the present invention.

REFERENCES:
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patent: 4261342 (1981-04-01), Aranguren
patent: 4790844 (1988-12-01), Ovil
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patent: 5163955 (1992-11-01), Love et al.
patent: 5326370 (1994-07-01), Love et al.
Love et al., "The Autogenous Tissue Heart Valvue: Current Status", Journal of Cardiac Surgery, vol. 6, No. 4, 1991.
Brewer III, Prosthetic Heart Valves, C. C. Thomas, 1969, Ch. 58, pp. 820-831.
Merendino, Prosthetic Valves in Cardiac Surgery, C. C. Thomas, 1961, Ch. 17, 19 and 21, pp. 307-339, 368-384, 402-425.
Braunwald et al, "Prosthetic Reconstruction of the Mitral Valve", 5 Progress in Cardiovascular Diseases 313-328 (Jan. 1963).
Berghuis et al, "Homotransplantation of the Canine Mitral Valve" 29 Cardiovascular Surgery (Supp) 47-53 (Apr. 1964).
O'Brien et al, "Homotransplantation of the Mitral Valve", 34 The Australian and New Zealand Journal of Surgery 81-88 (Nov. 1964).
Hubka et al., "Replacement of Mitral and Tricuspid Valves by Mitral Homograft", 51 Journal of Thoracic and Cardiovascular Surgery 195-204 (Feb. 1966).
Clarke et al, "The Fate of Preserved Homograft Pericardium and Autogenous Pericardium Within the Heart", 23 thorax 111-120 (1968).
Holdefer et al., "An Experimental Approach to Mitral Valve Replacement With Autologous Pericardium", 55 Journal of Thoracic and Cardiovascular Surgery 873-881 (Jun. 1968).
Suzuki et al, "Mitral Valve Replacement With Transplant Valves", 60 The Journal of Thoracic and Cardiovascular Surgery 13-25 (Jul. 1970).
Van der Spuy, "Completely Anatomical Autogeneous Whole Mitral Valve", 19 Thorax 526-529 (1964).
Mickleborough et al., "A Simplified Concept for a Bileaflet Artriventricular Valve That Maintains Annular-Papillary Muscle Continuity", 4 Journal of Cardiac Surgery 58-68 (Mar. 1989).

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