Surgery – Respiratory method or device – Ozone or ion generation
Patent
1974-12-23
1976-11-02
Truluck, Dalton L.
Surgery
Respiratory method or device
Ozone or ion generation
1282142, 137423, 137430, 222 68, A61M 516
Patent
active
039890430
ABSTRACT:
An apparatus is disclosed for regulating the flow of solution from a fluid reservoir to the vein of a patient. All of the embodiments of the present invention include a first fluid chamber having an inlet and a discharge port and means disposed within a first fluid chamber for maintaining the level of solution therein between upper and lower levels. In all of the embodiments of the present invention, an upper and lower valve seat is provided within the first chamber which interacts with a float or floats contained therein to from two valve mechanisms which maintain a constant rate of flow of solution independent of the initial height or variations in height of solution contained within the reservoir during its depletion. In two of the embodiments of the present invention, a second fluid chamber is coupled to the first fluid chamber by means of a drip chamber which permits the visual counting of the rate of flow of solution from the first chamber to the second fluid chamber. The second fluid chamber is also provided with an intake and a discharge port that have valve seats disposed in close proximity thereto. A float is disposed within the second chamber for regulating the level of solution contained therein between an upper and a lower level. The float in combination with the valve seats forms upper and lower valve mechanisms which prevent the intake or discharge of solution from the second fluid chamber when the level of solution contained therein respectively reaches the upper and lower levels and maintains the rate of flow of solution through the second fluid chamber at the same rate maintained through the first fluid chamber. Additionally, the second fluid chamber regulates the flow rate of solution at all times within a rate of flow which may be safely tolerated by the patient.
REFERENCES:
patent: 2090273 (1937-08-01), Wagner
patent: 2844147 (1958-07-01), Beacham
patent: 3092106 (1963-06-01), Butler
patent: 3543752 (1970-12-01), Hesse et al.
patent: 3584764 (1971-06-01), Elkins
patent: 3756233 (1973-09-01), Goldowsky
patent: 3929157 (1975-12-01), Serur
patent: 3931818 (1976-01-01), Goldowsky
Lancet -- Apr. 6, 1963, pp. 754-755.
Brekke Darrell G.
Grafel Gary F.
Manning John R.
Truluck Dalton L.
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