Insertable fluid warming cassette unit

Details Insertable fluid warming cassette unit Insertable fluid warming cassette unit

2005-05-31

2005-05-31

Campbell, Thor (Department: 3742)

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

C604S113000, C165S046000

Reexamination Certificate

active

06901216

ABSTRACT:
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.

REFERENCES:
patent: 3485245 (1969-12-01), Lahr
patent: 4707587 (1987-11-01), Greenblatt
patent: 4731072 (1988-03-01), Aid
patent: 4737140 (1988-04-01), Iroutner et al.
patent: 5245693 (1993-09-01), Ford
patent: 5875282 (1999-02-01), Jordan
patent: 6464666 (2002-10-01), Augustine
patent: 2001/0009610 (2001-07-01), Augustine
patent: 2002/0041621 (2002-04-01), Heymann
patent: 2003/0077079 (2003-04-01), Augustine
patent: 2003/0099469 (2003-05-01), Bakke
European Search Report published on Aug. 4, 2004 (3 pages).

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