Surgery – Respiratory method or device – Ozone or ion generation
Patent
1975-12-03
1977-08-02
Truluck, Dalton L.
Surgery
Respiratory method or device
Ozone or ion generation
128DIG13, 1374875, 222 5976, A61M 516
Patent
active
040389812
ABSTRACT:
An electronically controlled, gravity-feed, intravenous infusion set in which a length of intravenous tubing is connected with a drip chamber to convey a fluid to be administered intravenously, the improvement comprising a normally closed internal valve in said set operable to prevent flow of fluid through the set and operated to open position to enable passage of a drop of fluid through the set, and an electrically controlled actuator operatively associated with the valve to operate the valve to its open position at a predetermined frequency of operation and to hold the valve open until a drop forms and falls to thus determine the drip rate of fluid through the set, said internal valve thus enabling control of flow of fluid through the set without necessitating crimping or other deformation of the set and thereby resulting in dependable and accurate control of the flow rate of the fluid to be administered intravenously.
REFERENCES:
patent: 2096808 (1937-10-01), Jenkins et al.
patent: 2254833 (1941-09-01), Ashkenaz
patent: 3163176 (1964-12-01), Darling
patent: 3252623 (1966-05-01), Corbin et al.
patent: 3609379 (1971-09-01), Hildebrandt
patent: 3890968 (1975-06-01), Pierce et al.
LeFevre Robert J.
Thomas Robert E.
Burron Medical Products, Inc.
Truluck Dalton L.
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