04314143 is referenced by 68 patents and cites 22 patents.

An apparatus for warming blood and other parenteral fluids as they are infused through a disposable flow system includes a pair of heating elements which heat the blood as it passes through a warming bag provided in the flow system. The heating elements are recurringly switched on and off with a duty cycle dependent on both the temperature of the blood at the output of the warming bag and the temperature differential between the output and input of the bag to maintain the blood at a predetermined temperature independent of flow rate. A digital display and monitoring circuit provides a highly accurate digital indication of blood temperature and interrupts the application of power to the heating elements in the event the temperature exceeds a predetermined maximum level.

Title
Blood warming apparatus with digital display and monitoring circuit
Application Number
6/53547
Publication Number
4314143
Application Date
June 29, 1979
Publication Date
February 2, 1982
Inventor
John T Foley
Wheeling
IL, US
Arnold C Bilstad
Deerfield
IL, US
Agent
Eugene Cummings
Paul Flattery
Assignee
Baxter Travenol Laboratories
IL, US
IPC
H05B 1/02
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