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HEATING DEVICE FOR PARENTERAL FLUID

  • US 3,629,552 A
  • Filed: 06/25/1969
  • Issued: 12/21/1971
  • Est. Priority Date: 06/25/1969
  • Status: Expired due to Term
First Claim
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1. A heating device for parenteral fluid and the like comprising:

  • a. a container adapted to hold a quantity of liquid, b. an independent coil of tubing removably mounted within the container, the coil being adapted to be at least partially immersible in the liquid and spaced from the container to permit substantially free flow of the liquid over the exterior face of the coil, the coil providing a conduit adapted to convey the parenteral fluid through the liquid in heat transfer relation thereto, c. an electrical immersion heating element mounted to the container and disposed therewithin, said element being adapted to heat the liquid, d. thermostatic switching means adapted to be in contact with the liquid, the switching means being connected to the heating element and regulating the heat emission therefrom in response to the temperature of the liquid, and e. aerating means mounted to the container and adapted to supply air below the surface of the liquid whereby to facilitate the circulation thereof, f. the aerating means including;

    1. an air pump mounted exteriorly of the container, 2. a substantially upright, open-ended pipe mounted interiorly of the container and including an upper, air bubble escape orifice and a lower liquid intake orifice, and 3. air passage means interconnecting the air pump to the openended pipe intermediate the intake and escape orifices, and g. the heating element including a heating portion disposed below the escape orifice and in the immediate vicinity of the intake orifice whereby heated liquid is drawn upwardly through the pipe.

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