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Fluid warming cassette and system capable of operation under negative pressure

  • US 8,620,149 B2
  • Filed: 06/15/2007
  • Issued: 12/31/2013
  • Est. Priority Date: 03/25/2003
  • Status: Expired due to Fees
First Claim
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1. A fluid warming cassette with proximal and distal ends, the fluid warming cassette consisting of:

  • a flexible planar spacer having an internal serpentine opening;

    a first sheet formed of flexible plastic material proximate the planar spacer;

    a second sheet of flexible plastic material joined to the first sheet to enclose the planar spacer and form a serpentine fluid channel with a serpentine fluid channel having first and second ends near the proximal end;

    an inlet port in fluid communication with the first end; and

    an outlet port in fluid communication with the second end.

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