CARDIAC VALVE WITH FLAPS PIVOTING ON BALLS

A cardiac valve comprises a ring, one or more flaps, the pivoting axis of the latter including two balls partly extending into a ring cavity and a conical flap cavity. This arrangement improves the life of the valve by reducing wear, stresses, friction and facilitates the assembly thereof if the rin...

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Bibliographische Detailangaben
Hauptverfasser:	RANC, RENE, BOYER, ROBERT, STEFANI, RENE, DECEASED
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BANDAGES, DRESSINGS OR ABSORBENT PADS BLASTING COCKS DEVICES FOR VENTING OR AERATING DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS ENGINEERING ELEMENTS AND UNITS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HUMAN NECESSITIES HYGIENE LIGHTING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TAPS THERMAL INSULATION IN GENERAL TREATMENT OR PROTECTION OF EYES OR EARS VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A cardiac valve comprises a ring, one or more flaps, the pivoting axis of the latter including two balls partly extending into a ring cavity and a conical flap cavity. This arrangement improves the life of the valve by reducing wear, stresses, friction and facilitates the assembly thereof if the ring is constituted by two concentric members and if the ring cavity extends on either side of the inner member. The invention more particularly applies to artificial valves installed in the heart in place of defective natural valves.