A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/44 (2006.01) H05B 1/02 (2006.01) H05B 3/36 (2006.01) H05B 3/58 (2006.01)
Patent
CA 2316571
A medical tubing is used for heating an intravenous fluid immediately prior to the fluid's introduction into a patient. The medical tubing comprises an internal web with a heating element along a length of the web, which heats fluid passing through the tubing. Temperature sensors at an entrance and exit of the tubing communicate the temperatures of the unheated and heated fluid, which provides a feedback control circuit for regulating the amount of heat delivered to the fluid. Current carrying wires in the web dissipate heat and thereby heat the web, which in turn heats the fluid in the tubing. A heat controlling unit adjusts an electrical current transmitted to the current carrying wires in the web. The web may be formed separately from the tubing and subsequently inserted therein, or formed integrally with the tubing by, for example, an extruding process. The web is of sufficient thickness to carry the heating element and additionally carry a separate line for the temperature signals, yet remain flexible so that the tubing can be used in the traditional manner.
Respiratory Support Products Inc.
Smiths Medical Asd Inc.
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