Fluid injection system cassette and fluid packaging methods
First Claim
Patent Images
1. A fluid delivery cassette, comprising:
- relatively rigid walls defining a plurality of compartments each having a delivery wall and a pressure wall; and
a plurality of fluid containing cells, one of said cells positioned in each of said compartments and sealed to said walls, said cells each including a movable wall, said compartments having a hole in the delivery wall through which the fluid may be ducted out of said cell, and having an aperture in the pressure wall through which pressure may be applied against said movable wall to force the fluid out of said cell.
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Abstract
A cassette containing a group of sealed cells is used for delivering doses of fluid to be injected into a sterilizing chamber. After the cassette is automatically positioned over a piercing mechanism, the cassette is moved downwardly so that a cell is pierced. Fluid is then forced out of the cell by pneumatic pressure into an injector valve, which opens in a manner which does not adversely affect a vacuum within the chamber.
91 Citations
19 Claims
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1. A fluid delivery cassette, comprising:
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relatively rigid walls defining a plurality of compartments each having a delivery wall and a pressure wall; and a plurality of fluid containing cells, one of said cells positioned in each of said compartments and sealed to said walls, said cells each including a movable wall, said compartments having a hole in the delivery wall through which the fluid may be ducted out of said cell, and having an aperture in the pressure wall through which pressure may be applied against said movable wall to force the fluid out of said cell. - View Dependent Claims (2, 3, 4, 5)
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6. Fluid dispensing apparatus, comprising:
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a cassette having a generally flat, elongated, rectangular configuration, said cassette including a delivery section and a pressure section that has walls which mate to form a plurality of relatively shallow compartments; and a cell pack comprising flexible walls bonded together to form a plurality of fluid-containing cells, said pack being captured between said sections with one cell positioned in each compartment, said cassette including a hole in the delivery side of each compartment for conducting the fluid out of the cell, each of said compartments further including an aperture in the pressure side adapted to receive pressure to react against a cell to force the fluid out of the cell. - View Dependent Claims (7, 8)
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9. A container assembly, comprising:
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a delivery wall having a concave inner surface; and a pressure wall having a concave inner surface with a periphery sized to mate with the periphery of said delivery wall, the peripheries of said walls being bonded together with their concave walls facing each other to define a sealed fluid container, said pressure wall is flexible and said concave walls are formed om radii, with the radius of the delivery wall being slightly greater than the radius of the pressure wall so that said pressure wall can be pressed into engagement with said delivery wall and will nest precisely with said delivery wall to force all of the fluid out of said container through an opening formed in the delivery wall. - View Dependent Claims (10, 11)
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12. A fluid delivery cassette, comprising:
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a plurality of sealed fluid containing cells each having a delivery wall and a flexible pressure wall; a sheet to which said plurality of cells are attached with said cells arranged in spaced relation; means forming a plurality of trigid compartments each receiving one of said cells, said compartments having a delivery wall curved to conform to said cell delivery wall so as to support the cell delivery wall, said compartments further having a pressure wall sealed with respect to the cell pressure wall so as to form a pressurizing cavity, said compartment delivery wall including a hole adapted to cooperate with a fluid coupling assembly to duct the fluid out of the cell, said compartment pressure wall further having an aperture leading to space to force the fluid out of said cell. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification