FIELD: medical engineering. SUBSTANCE: artificial cardiac valve body and shutoff member flaps are made of metal. Valve body has inner seats for flaps and is built up by fitting flaps in these seats which are made by extrusion using profiled punch. Surfaces of valve body and flaps have sealing nonconducting carbon coatings. Flaps are set up in place by momentarily compressing and straightening these using force not exceeding nominal yield point of α-β phase titanium from which valve body and flaps are fabricated. EFFECT: greater simplicity.
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Authors
Dates
1994-05-15—Published
1991-04-10—Filed