Surgery – Respiratory method or device – Ozone or ion generation
Patent
1978-02-06
1980-02-05
Truluck, Dalton L.
Surgery
Respiratory method or device
Ozone or ion generation
1282142, 137188, 137403, A61M 500
Patent
active
041867408
ABSTRACT:
An intravenous apparatus for administering liquids to a patient, including an elongated supply tube having a first end which is adapted to be connected to a reservoir of liquid. A flow-regulating device is attached to the remote end of the supply tube. A control tube having a length approximately the same as the supply tube is adapted to hang alongside the supply tube. Within the flow-regulating device is a flexible member such as a tube, bladder or diaphragm--with liquid that is being furnished by the supply tube passing interiorly of said flexible member, and there being some means for externally pressurizing said flexible member. A preferred means for pressurizing the flexible member is a column of liquid maintained in the control tube, with the control liquid having the same specific gravity as that of the supply liquid. A check valve is provided so that liquid may temporarily pass out of the supply tube and into the control tube, until a desired height of liquid has been achieved in the control tube. When the flow-regulating device is located very near a needle which is inserted into a patient's arm or leg, ordinary movement of that arm or leg will not change the rate of flow--because the height of liquid (i.e., head) changes simultaneously in both tubes. The flow-regulating device may be quite small, with a typical bladder or tube being about one inch long, and a rigid housing for said bladder being only slightly longer.
REFERENCES:
patent: 2907340 (1959-10-01), Kenney
patent: 3204633 (1965-09-01), Hofstra
patent: 3228397 (1966-01-01), Moss
patent: 3469574 (1969-09-01), Durkan
patent: 3469582 (1969-09-01), Jackson
patent: 3939832 (1976-02-01), Miller
patent: 3986956 (1976-10-01), Anno
patent: 4043332 (1977-08-01), Metcalf
patent: 4146028 (1979-03-01), LeFevre
McHugh Charles W.
Truluck Dalton L.
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