Liquid warming bag and bag warmer
First Claim
1. A liquid heating bag or a blood heating bag, the bag defining a flow volume for a liquid being heated, the bag comprising:
- a first flexible plastic foil;
at least one second flexible plastic foil connected to said first foil to form a flat, substantially trapezoidal basic shape defined by delimiting edges, said delimiting edges including an upper delimiting edge disposed at a top of the bag during liquid heating and an adjacent delimiting edge, wherein said upper delimiting edge extends obliquely with respect to said adjacent delimiting edge to define a gas reception volume in an acute angular region subtended between said upper delimiting edge and said adjacent delimiting edge;
a liquid inlet line opening disposed at said upper delimiting edge;
a liquid outlet line opening disposed at said upper delimiting edge at a separation from said inlet line opening;
a liquid flow guiding seam disposed between said inlet and said outlet openings, said guiding seam formed by connecting said first and said second plastic foils in a region of the flow volume, thereby dividing said upper delimiting edge into a lower inlet line opening region and an upper outlet line opening region disposed at a gas reception volume side of the bag; and
a degassing opening disposed at said outlet line opening region of said upper delimiting edge proximate to said gas reception volume and between said outlet line opening and said adjacent delimiting edge.
2 Assignments
0 Petitions
Accused Products
Abstract
A liquid heating bag 50 is proposed, in particular, a blood heating bag, with a flow volume 1 that is formed from at least two flexible plastic foils connected to each other by welding at four delimiting edges 3,4,5,6, has a flat, substantially trapezoidal basic shape that is limited by the delimiting edges 3,4,5,6, and an inlet line opening 10 and an outlet line opening 11 for a liquid to be heated that are disposed at an upper delimiting edge 3 of the delimiting edges 3,4,5,6 to be disposed at the top during liquid heating, wherein the upper delimiting edge 3 extends sufficiently obliquely with respect to its adjacent delimiting edges 4,6 that a gas reception volume 8 is formed in the region of an acute angle of the flow volume 1 subtended between the upper delimiting edge 3 and a delimiting edge 6 adjacent thereto, and a liquid flow guiding seam 13 that is formed by connecting the plastic foils in the region of the flow volume 1 and divides the upper delimiting edge 3 into a lower inlet line opening region and an upper outlet line opening region on the gas reception volume side. A degassing opening 23 is disposed at the upper delimiting edge 3 in the region of the gas reception volume 8 between the outlet line opening 11 and the delimiting edge 6 adjacent to the outlet line opening region.
14 Citations
13 Claims
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1. A liquid heating bag or a blood heating bag, the bag defining a flow volume for a liquid being heated, the bag comprising:
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a first flexible plastic foil; at least one second flexible plastic foil connected to said first foil to form a flat, substantially trapezoidal basic shape defined by delimiting edges, said delimiting edges including an upper delimiting edge disposed at a top of the bag during liquid heating and an adjacent delimiting edge, wherein said upper delimiting edge extends obliquely with respect to said adjacent delimiting edge to define a gas reception volume in an acute angular region subtended between said upper delimiting edge and said adjacent delimiting edge; a liquid inlet line opening disposed at said upper delimiting edge; a liquid outlet line opening disposed at said upper delimiting edge at a separation from said inlet line opening; a liquid flow guiding seam disposed between said inlet and said outlet openings, said guiding seam formed by connecting said first and said second plastic foils in a region of the flow volume, thereby dividing said upper delimiting edge into a lower inlet line opening region and an upper outlet line opening region disposed at a gas reception volume side of the bag; and a degassing opening disposed at said outlet line opening region of said upper delimiting edge proximate to said gas reception volume and between said outlet line opening and said adjacent delimiting edge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification