Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent
1979-08-07
1982-01-05
Frinks, Ronald L.
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to regulate or vary operation of device
1375121, 1375278, A61F 122
Patent
active
043086241
ABSTRACT:
Single or double-leaflet heart valves include leaflet valve members which are arcuate in cross section, preferably being essentially a portion of the wall of a circular tube. Generally spherical sectors protrude oppositely from the leaflets and are received in elongated, complementary depressions in the interior wall of the annular valve body at generally diametrically opposite locations. As the leaflets pivot between the open and closed positions, the guides move from one end of the elongated depressions to the other. Eccentric pivot axes provide for quick response of the leaflets, and their arcuate shape coupled with shifting of the axes during pivoting moves the leaflets out of the center of the valve passageway reducing resistance to the free flow of blood.
REFERENCES:
patent: 3448465 (1969-06-01), Pierce et al.
patent: 3546711 (1970-12-01), Bokros
patent: 3589392 (1971-06-01), Meyer
patent: 3903548 (1975-09-01), Nakib
patent: 3926215 (1975-12-01), Macleod
patent: 4078268 (1978-03-01), Possis
patent: 4159543 (1979-07-01), Carpentier
patent: 4178639 (1979-12-01), Bokros
patent: 4225980 (1980-10-01), Martinez
patent: 4263680 (1981-04-01), Reul et al.
Frinks Ronald L.
Hemex, Inc.
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