DEVICE FOR HEATING A FLOW OF LIQUID BY ELECTRICAL HEATING OFA METALLIC CONDUIT

摘要

A device (100) for heating a flow of liquid from an initial temperature t o a desired temperature for intravenous delivery includes an elongated condu it (120) formed from metallic material having an inlet (102) for receiving t he flow of liquid at the initial temperature and an outlet (104) for deliver ing the flow of liquid at the desired temperature. A temperature sensing arr angement (160. 162, 224) is deployed to generate an output indicating the te mperature of the liquid at a number of locations along the conduit (120). A controller (140) generates electrical current flowing within at least one le ngth of the wall of the conduit, thereby generating heat within the wall so as to heat the flow of liquid to reach the desired temperature at the outlet .