Fluid warming cassette with a tensioning rod
First Claim
Patent Images
1. A system for warming parenteral fluids, comprising:
- a fluid warming unit with spaced-apart warming plates; and
a fluid warming cassette for being slid between the spaced-apart warming plates, the cassette including;
a first sheet and a second sheet joined together by a pattern of bonding defining a fluid container with a periphery, the periphery having a proximal end, a distal end and first and second sides therebetween;
the first sheet including a plurality of layers and the second sheet including a plurality of layers;
the pattern of bonding further defining a fluid channel in the fluid container;
the fluid channel having a serpentine shape;
first and second ports in fluid communication with the fluid channel;
a rod flexed into a “
U”
shape, the “
U”
shape having first and second legs joined by a closed, curved end, and an opposite open end, the closed end being positioned near the proximal end and the open end being positioned near the distal end;
the first and second legs positioned inside and along the first and second sides of the periphery;
the fluid channel disposed between the first and second legs;
the “
U”
shape tensioning the fluid container within a plane; and
,a handle portion in the proximal end including the closed, curved end.
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Accused Products
Abstract
A fluid warming cassette for use in a fluid warming system includes a first sheet and second sheet joined with a flexed tensioning rod to form a fluid container with a periphery in which the flexed tensioning rod is disposed to tension the fluid container. The fluid container includes a fluid channel with inlet and outlet ports in fluid communication with the fluid channel. Preferably, the rod is flexed into an open-ended shape such as a “U” shape. So flexed, the rod tensions the fluid container, adding structural stability to the fluid warming cassette.
85 Citations
23 Claims
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1. A system for warming parenteral fluids, comprising:
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a fluid warming unit with spaced-apart warming plates; and a fluid warming cassette for being slid between the spaced-apart warming plates, the cassette including; a first sheet and a second sheet joined together by a pattern of bonding defining a fluid container with a periphery, the periphery having a proximal end, a distal end and first and second sides therebetween; the first sheet including a plurality of layers and the second sheet including a plurality of layers; the pattern of bonding further defining a fluid channel in the fluid container; the fluid channel having a serpentine shape; first and second ports in fluid communication with the fluid channel; a rod flexed into a “
U”
shape, the “
U”
shape having first and second legs joined by a closed, curved end, and an opposite open end, the closed end being positioned near the proximal end and the open end being positioned near the distal end;the first and second legs positioned inside and along the first and second sides of the periphery; the fluid channel disposed between the first and second legs; the “
U”
shape tensioning the fluid container within a plane; and
,a handle portion in the proximal end including the closed, curved end. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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 therebetween; a rod flexed into an open-ended “
U”
shape and disposed between the first sheet and second sheet, inside the periphery;the “
U”
shape tensioning the fluid container within a plane;the “
U”
shape having first and second legs joined by a closed, curved end, and an opposite open end, the closed end being positioned near the proximal end and the open end being positioned near the distal end;the first and second legs being positioned inside and along the first and second sides of the periphery; a fluid channel in the fluid container, the fluid channel having a serpentine shape disposed between the first and second legs; first and second ports in fluid communication with the fluid channel; a handle portion at the proximal end including the closed, curved end; and a bubble trap attached to the handle portion, the bubble trap having an input connected to the second port, and an output. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification
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Current Assignee3M Innovative Properties Company (3M Company)
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Original AssigneeArizant Healthcare Inc. (3M Company)
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InventorsEntenman, Scott Allen, Schmidt, Wayne Eugene
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Primary Examiner(s)Leo; Leonard R.
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Application NumberUS10/214,966Publication NumberTime in Patent Office1,776 DaysField of Search165/46, 165/170, 625/30, 607/96, 607/108, 607/112, 607/114US Class Current607/96CPC Class CodesA61M 5/44 having means for cooling or...F28F 21/065 the heat-exchange apparatus...F28F 2225/00 Reinforcing meansF28F 3/12 Elements constructed in the...
