Diaphragm valve for medication infusion pump

Details Diaphragm valve for medication infusion pump Diaphragm valve for medication infusion pump

1986-06-05

1987-03-03

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137859, 251368, 417560, 417566, F16K 1514

Patent

active

046467815

ABSTRACT:
A valve, suitable for use in small medical devices and which can readily be made of medical grade materials, comprises an elastic diaphragm stretched over a protruding surface, preferably of spherical or convex shape. The diaphragm has a ring of holes concentrically around a hole in the protruding surface. A mating recess, connected to a conduit, fits over the protruding surface. The elastic material is held in place at or near the opening of the recess. The holding structure may also serve to seal the valve. A dual arrangement provides an input and an output valve in combination.

REFERENCES:
patent: 2376712 (1945-05-01), Moran
patent: 2758609 (1956-08-01), Dickert
patent: 2980032 (1961-04-01), Schneider
patent: 3401719 (1968-09-01), Rosser
patent: 3886937 (1975-06-01), Bobo
patent: 4153186 (1979-05-01), Nye
patent: 4181477 (1980-01-01), Litt
patent: 4244378 (1981-01-01), Brignola
patent: 4265601 (1981-05-01), Mandroian
patent: 4310017 (1982-01-01), Raines
patent: 4411603 (1983-10-01), Kell
patent: 4468221 (1984-08-01), Mayfield

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