Low hydraulic resistance cartridge
First Claim
Patent Images
1. A filtration device for treating medical or biological fluid comprising:
- a container housing defining an inner chamber having an inner chamber wall and an input end and an outlet end, the container housing having an inner chamber length from the input end to the outlet end such that the inner chamber width is at least two times larger than the inner chamber length, the inner chamber length measured in the general direction of fluid flow through the filtration device from the input end to the outlet end;
a plurality of fluid permeable separators beginning proximate to the inner chamber wall at the input end and extending inwardly into the inner chamber, the separators defining a plurality of open ended compartments inside the container housing wherein fluid can flow through the separators and within the compartments, the compartments each having a compartment length in the general direction of fluid flow through the filter from the input end to the outlet end, each compartment having a first open inlet end proximate to the input end and a first open outlet end proximate the outlet end; and
particles retained in each of the open ended compartments.
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Abstract
A cartridge for treating medical or biological fluid includes a first cap having an inlet for the fluid, a container including a plurality of compartments and a second cap including an outlet for the fluid, wherein each compartment contains a plurality of particles, wherein the fluid is adapted to flow through the compartments and react with the plurality of particles.
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Citations
19 Claims
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1. A filtration device for treating medical or biological fluid comprising:
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a container housing defining an inner chamber having an inner chamber wall and an input end and an outlet end, the container housing having an inner chamber length from the input end to the outlet end such that the inner chamber width is at least two times larger than the inner chamber length, the inner chamber length measured in the general direction of fluid flow through the filtration device from the input end to the outlet end; a plurality of fluid permeable separators beginning proximate to the inner chamber wall at the input end and extending inwardly into the inner chamber, the separators defining a plurality of open ended compartments inside the container housing wherein fluid can flow through the separators and within the compartments, the compartments each having a compartment length in the general direction of fluid flow through the filter from the input end to the outlet end, each compartment having a first open inlet end proximate to the input end and a first open outlet end proximate the outlet end; and particles retained in each of the open ended compartments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A filtering apparatus for medical or biological fluid comprising:
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a container housing defining a inner chamber having an inner chamber wall and an input end and an outlet end, the container housing having an inner chamber length from the input end to the outlet end such that the inner chamber width is at least two times larger than the inner chamber length, the inner chamber length is measured in the general direction of fluid flow through the filtering apparatus between the input end and the outlet end; a first cap attached to the input end of the container housing, the first cap having an outer wall and an inner wall, the inner wall defining an inwardly opening conical fluid distribution chamber having a fluid inlet near the apex of the conical fluid distribution chamber; a second cap attached to the outlet end of the container housing, the second cap having an outer wall and an inner wall, the inner wall defining an inwardly opening conical fluid collection chamber having a fluid outlet near the apex of the conical fluid collection chamber; and a plurality of fluid permeable separators extending inwardly from the inner chamber wall into the inner chamber and defining a plurality of open ended compartments inside the container housing wherein particles are retained by the fluid permeable separators in the compartments, the compartments each having a compartment length from the input end of the container housing to the outlet end of the container housing, each compartment having a first open inlet end proximate to the conical fluid distribution chamber and a first open outlet end proximate the conical fluid collection chamber, each first open inlet end and first outlet end of the compartments having a dimension across the open end that is equal to or shorter than the inner chamber length. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A filtering apparatus for dialysate fluid:
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a container housing defining a inner chamber having an inner chamber wall and an input end and an outlet end, the container housing having an inner chamber length from the input end to the outlet end such that the inner chamber width is at least two times larger than the inner chamber length, the inner chamber length measured in the general direction of fluid flow through the filtering apparatus between the input end and the outlet end; a plurality of fluid permeable separators defining a plurality of open ended compartments inside the container housing wherein dialysate fluid can flow through the separators and between the compartments and wherein particles are retained by the separators in the compartments, the compartments each having a compartment length from the input end of the container housing to the outlet end of the container housing, each compartment having a first open inlet end proximate to the input end and a first open outlet end proximate the outlet end, each first open inlet end and first open outlet end of the compartments having a dimension across the open end that is equal to or shorter than the compartment length; said particles comprising zirconium phosphate, said zirconium phosphate exchanges an ion with a substance in dialysate fluid that can flow through the filtering apparatus.
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18. A filtering apparatus for dialysate fluid:
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a container housing defining a inner chamber having an inner chamber wall and an input end and an outlet end, the container housing having an inner chamber length from the input end to the outlet end such that the inner chamber width is at least two times larger than the inner chamber length, the inner chamber length measured in the general direction of fluid flow through the filtering apparatus between the input end and the outlet end; a plurality of fluid permeable separators defining a plurality of open ended compartments inside the container housing wherein dialysate fluid can flow through the separators and between the compartments and wherein particles are retained by the separators in the compartments, the compartments each having a compartment length from the input end of the container housing to the outlet end of the container housing, each compartment having a first open inlet end proximate to the input end and a first open outlet end proximate the outlet end, each first open inlet end and first open outlet end of the compartments having a dimension across the open end that is equal to or shorter than the compartment length; said particles comprising urease and produce carbon dioxide when urea is present in the dialysate fluid that can flow through the filtering apparatus. - View Dependent Claims (19)
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Specification