Nontraumatic prosthetic valve with magnetic closure
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United States of America Patent
Stats
-
Jan 20, 1981
Grant Date -
N/A
app pub date -
Jan 24, 1979
filing date -
Jan 24, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved valve prosthesis for causing nontraumatic unidirectional flow of a pulsatory fluid, such as blood, through a conduit, such as a blood vessel. The valve includes two flaps, made of a suitable flexible material, attached by the proximal ends to opposite sides of a covered annular mounting structure. A pair of magnetic members are connected to the distal ends of the flaps thereby to exert sufficient attractive force to hold the flaps together in a closed position to prevent fluid flow through the valve. The magnetically-closed flaps are forced to an open position by the pressure of the fluid flowing through the conduit. A decrease in fluid pressure in combination with the attractive force exerted by the magnetic members permits the smooth, nontraumatic closure of the valve flaps.
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Family
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