Surgery – Respiratory method or device – Ozone or ion generation
Patent
1977-07-08
1979-12-18
Truluck, Dalton L.
Surgery
Respiratory method or device
Ozone or ion generation
128DIG12, A61M 500
Patent
active
041789270
ABSTRACT:
The intravenous feeding pump actuator of the present invention is driven by a small, very slow speed motor and a gear train, such as one rotating the output shaft at a speed of one revolution per minue (1 r.p.m.). The single motor drives a readily replaceable cam which is slipped into position on the drive shaft and needs no other means for attaching it thereto. Each of the cams normally supplied with the actuator is designed to give a predetermined number of rocking movements per minute to a cam follower which directly operates the associated intravenous pump, and simultaneously controls the limit of travel of the cam follower and thus the length of the stroke of the pump operator. It will be understood that each of the cams will provide for a different flow rate for the associated pump by controlling the number of strokes per minute and the length of each stroke and is readily changeable so that one can be quickly and easily removed and another placed in its stead when determined by operating conditions.
REFERENCES:
patent: 3068817 (1962-12-01), Hamlett
patent: 3543752 (1970-12-01), Hesse et al.
patent: 3628478 (1971-12-01), Seck et al.
patent: 3724282 (1973-04-01), Daman
patent: 3798982 (1974-03-01), Lundquist
patent: 3901231 (1975-08-01), Olson
Truluck Dalton L.
Valleylab
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