05245693 is referenced by 179 patents and cites 57 patents.

An apparatus for heating parenteral fluids for intravenous delivery to a patient. The apparatus includes a disposable cassette which in one presently preferred embodiment is made up of a unitary member which is divided to form a serpentine flow path by a plurality of path separators. Thin, flexible metallic foil membranes are sealingly joined to the unitary member on the upper and bottom surfaces thereof to form an enclosed, fluid-tight serpentine flow path between the plurality of path separators. The entire periphery of the unitary member and the thin, flexible heat conductive foil membranes are sealingly held by a framework. The disposable cassette slides between first and second heating blocks which contact the thin, flexible heat conductive foil membranes so as to provide heat transfer to fluid flowing in the serpentine flow path. The heating blocks are designed to provide a gradation of heat energy such that more heat energy is available for transfer to the parenteral fluid at the inlet end of the serpentine flow path than is available for transfer to the parenteral fluid at the outlet end of the serpentine flow path.

Title
Parenteral fluid warmer apparatus and disposable cassette utilizing thin, flexible heat-exchange membrane
Application Number
7/669825
Publication Number
5245693
Application Date
March 15, 1991
Publication Date
September 14, 1993
Inventor
Steven Ford
Farmington
UT, US
Dixon Ford
Farmington
UT, US
Agent
Workman Nydegger Jensen
Assignee
In Touch Products Co
UT, US
IPC
A61B 19/00
F24H 1/12
H05B 1/02
View Original Source