Fluid warming cassette and system capable of operation under negative pressure
First Claim
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.
4 Assignments
0 Petitions
Accused Products
Abstract
A fluid warming cassette for use in a fluid warming system includes a first sheet, a second sheet and a flexible spacer having a serpentine opening. At least one of the first and second sheets is a flexible plastic sheet. The spacer is positioned between the first and second sheets and the first and second sheets are joined together over the spacer to form a fluid container having a fluid channel. The fluid container includes a fluid channel with inlet and outlet ports in fluid communication with the fluid channel. The fluid warming cassette is capable of operating under negative pressure without collapse of the fluid channel in the cassette.
-
Citations
14 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A fluid warming cassette, comprising:
-
proximal and distal ends; 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 inlet and outlet areas near the proximal end; an inlet port in the inlet area for being attached to an inlet tube; and an outlet port in the outlet area for being attached to an outlet tube. - View Dependent Claims (13, 14)
-
Specification