An artificial heart valve with a free-floating disc tilting on the edge of an orifice ring. It was devised in 1963 by Anatolio Cruz, then in the service of Lillehei.
- A. B. Cruz, R. L. Kaster, R. L. Simmons, C. W. Lillehei:
A new caged meniscus prosthetic heart valve. Surgery 1965, 58: 995-998.
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