Dialysis systems and related methods
First Claim
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1. An extracorporeal blood treatment machine comprising:
- a machine block including first and second pumps;
a door configured to cooperate with the machine block to define a compartment configured to receive a cassette, the cassette comprising (i) a first pumping region and first passages connected to the first pumping region and (ii) a second pumping region and second passages connected to the second pumping region,wherein the first pump is positioned to align with the first pumping region of the cassette when the cassette is disposed in the compartment, the second pump is positioned to align with the second pumping region of the cassette when the cassette is disposed in the compartment, and the extracorporeal blood treatment machine comprises control electronics that operate the first pump and not the second pump during a hemodialysis treatment and that operate the first and second pumps during a hemofiltration or hemodiafiltration treatment.
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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
15 Claims
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1. An extracorporeal blood treatment machine comprising:
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a machine block including first and second pumps; a door configured to cooperate with the machine block to define a compartment configured to receive a cassette, the cassette comprising (i) a first pumping region and first passages connected to the first pumping region and (ii) a second pumping region and second passages connected to the second pumping region, wherein the first pump is positioned to align with the first pumping region of the cassette when the cassette is disposed in the compartment, the second pump is positioned to align with the second pumping region of the cassette when the cassette is disposed in the compartment, and the extracorporeal blood treatment machine comprises control electronics that operate the first pump and not the second pump during a hemodialysis treatment and that operate the first and second pumps during a hemofiltration or hemodiafiltration treatment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An extracorporeal blood treatment system comprising:
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a cassette comprising (i) a first pumping region and first passages connected to the first pumping region and (ii) a second pumping region and second passages connected to the second pumping region; and an extracorporeal blood treatment machine comprising a machine block including first and second pumps; and a door configured to cooperate with the machine block to define a compartment configured to receive the cassette, wherein the first pump is positioned to align with the first pumping region of the cassette when the cassette is disposed in the compartment, the second pump is positioned to align with the second pumping region of the cassette when the cassette is disposed in the compartment, and the extracorporeal blood treatment machine comprises control electronics that operate the first pump and not the second pump during a hemodialysis treatment and that operate the first and second pumps during a hemofiltration or hemodiafiltration treatment.
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Specification