The present invention is directed to a fluid warming cassette. The cassette has
two polymeric films and at least two guide rails. A difference between this fluid
warming cassette and those of the prior art is that this fluid warming cassette
has a tongue section thereon. This tongue section assists the user insert the cassette
into a warming unit's aperture. That aperture is relatively narrow because the
heating elements of the warming unit must be sufficiently close to the cassette
to alter the temperature of the fluid in the cassette to a desired temperature.
In addition, the user can confirm if the cassette is properly inserted into the
warming device's aperture by seeing that the tongue portion is sticking out of
the other end of the warming device's aperture.
