Bileaflet mechanical heart valve having cropped slot pivot configuration and method for preventing blood stagnation therein
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United States of America Patent
Stats
-
Sep 10, 1996
Grant Date -
N/A
app pub date -
Dec 22, 1994
filing date -
Dec 22, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bileaflet mechanical cardiovascular valve comprising an annular valve body having a pair of occluder leaflets pivotally mounted therewithin. The occluder leaflets are pivotally mounted within the valve body by the snap-fitting of ear member which extend from the top and bottom ends of the occluder leaflets into corresponding cropped pivot slots formed within the annular valve body. Each cropped pivot slot comprises a spheroidal depression or recess having a first flat cropped edge and a second flat cropped edge. The ear members of the occluder leaflets are sized and configured relative to the cropped pivot slots to facilitate opening and closing of the occluder leaflets with minimal likelihood of hemolysis or thrombotic complications. Additionally disclosed is a specialized machine tool and method for machining the cropped pivot slots in the annular valve body.
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Family
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Cited Art Landscape
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