ball-and-cage valve


ball-and-cage valve
a form of mechanical prosthesis commonly used in the past for replacing damaged heart valves. Currently, most mechanical valve replacements are of the tilting-disc variety.

The new mediacal dictionary. 2014.

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  • ball-and-cage valve — a form of prosthesis commonly used for replacing damaged heart valves …   Medical dictionary

  • Cage — Cage, n. [F. cage, fr. L. cavea cavity, cage, fr. cavus hollow. Cf. {Cave}, n., {Cajole}, {Gabion}.] [1913 Webster] 1. A box or inclosure, wholly or partly of openwork, in wood or metal, used for confining birds or other animals. [1913 Webster]… …   The Collaborative International Dictionary of English

  • valve — 1. A fold of the lining membrane of a canal or other hollow organ serving to retard or prevent a reflux of fluid. 2. Any formation or reduplication of tissue, or flaplike structure …   Medical dictionary

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  • Safety valve — Safety chain Safety chain (a) (Railroads) A normally slack chain for preventing excessive movement between a truck and a car body in sluing. (b) An auxiliary watch chain, secured to the clothes, usually out of sight, to prevent stealing of the… …   The Collaborative International Dictionary of English

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