Fluid warming cassette with rails and a stiffening member
First Claim
Patent Images
1. A fluid warming cassette, comprising:
- a first sheet and a second sheet joined together to form a fluid container with a periphery, the periphery having a proximal end, a distal end and first and second sides there between;
a fluid channel in the fluid container between the first sheet and the second sheet;
first and second rails disposed between the first sheet and second sheet, inside the periphery, near the first and second sides, respectively; and
a planar stiffener near the proximal end, separate from the first and second rails, disposed between the first sheet and the second sheet, and extending between the rails for substantially the width of the fluid container from near the first rail to near the second rail.
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Abstract
A fluid warming cassette useful in a system for warming parenteral fluids is provided. The cassette comprises a thermally conductive, flexible fluid container with a fluid channel. Rails are disposed in the fluid container near its periphery, and a stiffener is disposed in the fluid container, between the rails, near an end of the cassette. Together, the rails and stiffener impart structural rigidity to the fluid container. The fluid container, rails and stiffener are joined into an integrated structure useful as a fluid warming cassette. One or more of the rails has a multilateral shape to key the cassette for insertion into a fluid warming unit.
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Citations
33 Claims
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1. A fluid warming cassette, comprising:
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a first sheet and a second sheet joined together to form a fluid container with a periphery, the periphery having a proximal end, a distal end and first and second sides there between; a fluid channel in the fluid container between the first sheet and the second sheet; first and second rails disposed between the first sheet and second sheet, inside the periphery, near the first and second sides, respectively; and a planar stiffener near the proximal end, separate from the first and second rails, disposed between the first sheet and the second sheet, and extending between the rails for substantially the width of the fluid container from near the first rail to near the second rail. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A fluid warming cassette comprising:
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a flexible, planar fluid container with a periphery, two edges, a proximal end, and a distal end; a fluid channel in the fluid container, the fluid channel having two ends; first and second rails disposed in the fluid container, inside the periphery, near the first and second edges, respectively; at least one of the rails for keying the fluid warming cassette for insertion into a fluid warming unit a planar stiffener near the proximal end, separate from the first and second rails, disposed in the fluid container, and extending between the rails for substantially the width of the fluid container from near the first rail to near the second rail; and two fluid ports on the fluid container, each fluid port in fluid communication with a respective end of the fluid channel and disposed perpendicularly to the fluid container.
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28. A fluid warming cassette comprising:
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a flexible fluid container with two edges and two ends; a fluid channel in the fluid container; first and second rails disposed in the fluid container, near first and second edges of the fluid container, respectively; and a handle portion near a proximal end of the fluid container and including a planar piece sandwiched in the fluid container between the rails for substantially the width of the fluid container. - View Dependent Claims (29, 30, 31, 32)
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33. A fluid warming kit, including:
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a fluid warming cassette constituted of a flexible, planar fluid container with a periphery, two edges, a proximal end, and a distal end, a fluid channel in the fluid container, rails disposed in the fluid container, inside the periphery, near the edges, a planar stiffener near the proximal end, separate from the rails, disposed in the fluid container, and extending between the rails for substantially the width of the fluid container from near the first rail to near the second rail, and inlet and outlet ports perpendicular to the fluid warming cassette and opening into the fluid channel; an inlet line including an inlet end for receiving fluid from one or more sources, a drip chamber, and an outlet coupled to the inlet port; and an outlet line including a bubble trap with an inlet coupled to the outlet port and an outlet, an injection site coupled to the outlet of the bubble trap, and an outlet end for delivering warmed fluid.
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Specification