Electric heating – Heating devices – Combined with diverse-type art device
Patent
1985-09-06
1987-07-14
Bartis, Anthony
Electric heating
Heating devices
Combined with diverse-type art device
165 46, 219302, 219305, 219308, 219309, 604114, H05B 102, A61F 700, B67D 562, F24H 112
Patent
active
046804455
ABSTRACT:
A device for heating an infusion liquid to be injected into a human body includes a casing having an open top and a closed bottom, with a liquid inlet section and a liquid outlet section, providing a compartment receiving a heating bag providing flow passage for the liquid to be heated. Two heating plates are mounted on the casing bottom and three thermosensors are provided; the first at the inlet section, the second between the heating plates and the third at the outlet section. A cover closing the open top is provided with a push plate holding the bag against the heating plates. A control circuit controls the first heating plate in response to the temperature in the vicinity of the bag inlet and the middle of the bag as detected by the first and second thermosensors and the second heating plate in accordance with the temperature in the vicinity of the bag outlet as detected by the third thermosensor. The control circuit is also responsive to a flow rate detector. The casing orients the heating plates and push plate vertically during use and the push plate and heating plates may be provided with opposed wedged-shaped ridges causing the flow passage in the bag to assume a shape which reduces bubble formation and promotes rapid ejection of any bubble formed.
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patent: 4532414 (1985-07-01), Shah et al.
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