Dialysis Systems and Related Methods
First Claim
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1. A dialysis system, comprising:
- a dialysis machine having a cassette compartment configured to receive a dialysis fluid cassette that comprises a fluid channel formed between a base and a flexible membrane that is attached to the base, the cassette compartment being configured such that the membrane of the dialysis fluid cassette is positioned adjacent a machine block of the dialysis machine when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine;
a valve member at least partially disposed in a recess defined by the machine block, the valve member being substantially aligned with a portion of the fluid channel of the dialysis fluid cassette when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine, the valve member comprising a deformable area configured to deform outwardly when pressurized fluid is introduced into the valve member,wherein the valve member is configured so that the deformable area obstructs the fluid channel of the dialysis fluid cassette to control dialysis fluid flow therethrough when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine and pressurized fluid is introduced into the valve member.
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Abstract
A dialysis machine that includes a valve member having a deformable area configured to deform outwardly away when pressurized fluid is introduced into the valve member. The valve member is configured so that, when a dialysis fluid cassette is disposed in a cassette compartment of the dialysis machine and pressurized fluid is introduced into the valve member, the deformable area obstructs a fluid channel of the dialysis fluid cassette to control dialysis fluid flow therethrough.
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Citations
22 Claims
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1. A dialysis system, comprising:
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a dialysis machine having a cassette compartment configured to receive a dialysis fluid cassette that comprises a fluid channel formed between a base and a flexible membrane that is attached to the base, the cassette compartment being configured such that the membrane of the dialysis fluid cassette is positioned adjacent a machine block of the dialysis machine when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine; a valve member at least partially disposed in a recess defined by the machine block, the valve member being substantially aligned with a portion of the fluid channel of the dialysis fluid cassette when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine, the valve member comprising a deformable area configured to deform outwardly when pressurized fluid is introduced into the valve member, wherein the valve member is configured so that the deformable area obstructs the fluid channel of the dialysis fluid cassette to control dialysis fluid flow therethrough when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine and pressurized fluid is introduced into the valve member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A dialysis system, comprising:
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a dialysis machine having a cassette compartment configured to receive a dialysis fluid cassette that comprises a plurality of fluid channels formed between a base and a flexible membrane that is attached to the base, the cassette compartment being configured such that the membrane of the dialysis fluid cassette is positioned adjacent a machine block of the dialysis machine when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine; a plurality of valve members at least partially disposed in recesses defined by the machine block, each of the valve members being substantially aligned with a portion of one of the fluid channels of the dialysis fluid cassette when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine, each of the valve members comprising a deformable area configured to deform outwardly when pressurized fluid is introduced into the valve member, wherein each valve member is configured so that the deformable area obstructs the aligned portion of the fluid channel of the dialysis fluid cassette when the dialysis fluid cassette is disposed in the cassette compartment of the dialysis machine and pressurized fluid is introduced into the valve member such that the plurality of valve members can be operated to control fluid flow through the dialysis fluid cassette. - View Dependent Claims (19, 20, 21, 22)
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Specification