Patent ID: 6512212
Filing Date: 2003-01-28
Classification: A61M

Abstract:
A heater for warming a fluid, said heater comprising:a transformer, said transformer having a core, a primary winding associated with said core and adapted to generate an alternating magnetic field in the presence of an alternating power passing through said primary winding and a secondary winding, a secondary cartridge interfitted into said core, said secondary cartridge enclosing the secondary winding comprising a metallic conduit having an inlet and an outlet for passing a fluid through said secondary cartridge, said secondary cartridge, when interfitted into said core, being located in the alternating magnetic field to produce induced currents in said secondary winding, said secondary winding being shorted out to convert the induced currents into heat to heat a fluid passing therethrough, wherein said secondary cartridge is readily removed from the interfitting relationship with said core.