Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent
1974-09-04
1976-01-20
Frinks, Ronald L.
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to regulate or vary operation of device
13753313, 13753315, A61F 122
Patent
active
039328988
ABSTRACT:
The valve body of a prosthetic heart valve of annular base-cage-ball or disc type has its annular base member circumferentially grooved around its outer periphery and its cage formed with arcuate members held in such grooving. Preferably the arcuate members are formed with the other cage members from a single length of material to a closed loop configuration with four axially directed cage portions joined remotely from the base and interconnected by two diagonally opposed quadrant portions seated in the base groove. One of the base groove side walls is notched to receive the cage portions and this can provide a snap fit or the quandrants can be tied by threading in the groove.
REFERENCES:
patent: 3466671 (1969-09-01), Siposs
patent: 3551913 (1971-01-01), Shiley et al.
patent: 3691567 (1972-09-01), Cromie
patent: 3725961 (1973-04-01), Magovern et al.
Frinks Ronald L.
National Research Development Corporation
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