DIALYSIS SYSTEM WITH CASSETTE BASED BALANCE CHAMBERS AND VOLUMETRIC PUMPS
First Claim
1. A dialysis system comprising:
- a fresh dialysis fluid membrane pump;
a spent dialysis fluid membrane pump;
a first balance chamber having a fresh dialysis fluid compartment connected fluidly to the fresh dialysis fluid membrane pump and a spent dialysis fluid compartment connected fluidly to the spent dialysis fluid membrane pump;
a second balance chamber having a fresh dialysis fluid compartment connected fluidly to the fresh .dialysis fluid membrane pump and a spent dialysis fluid compartment connected fluidly to the spent dialysis fluid membrane pump; and
a dialysis fluid cassette, wherein at least one of the fresh dialysis fluid membrane pump, the spent dialysis fluid membrane pump, the first balance chamber and the second balance chamber includes a fluid receiving portion provided in the dialysis fluid cassette.
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Accused Products
Abstract
A dialysis system includes a fresh dialysis fluid membrane pump; a spent dialysis fluid membrane pump; a first balance chamber having a fresh dialysis fluid compartment connected fluidly to the fresh dialysis fluid membrane pump and a spent dialysis fluid compartment connected fluidly to the spent dialysis fluid membrane pump; a second balance chamber having a fresh dialysis fluid compartment connected fluidly to the fresh dialysis fluid membrane pump and a spent dialysis fluid compartment connected fluidly to the spent dialysis fluid membrane pump; and a dialysis fluid cassette, wherein at least one of the fresh dialysis fluid membrane pump, the spent dialysis fluid membrane pump, the first balance chamber and the second balance chamber includes a fluid receiving portion provided in the dialysis fluid cassette.
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Citations
20 Claims
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1. A dialysis system comprising:
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a fresh dialysis fluid membrane pump; a spent dialysis fluid membrane pump; a first balance chamber having a fresh dialysis fluid compartment connected fluidly to the fresh dialysis fluid membrane pump and a spent dialysis fluid compartment connected fluidly to the spent dialysis fluid membrane pump; a second balance chamber having a fresh dialysis fluid compartment connected fluidly to the fresh .dialysis fluid membrane pump and a spent dialysis fluid compartment connected fluidly to the spent dialysis fluid membrane pump; and a dialysis fluid cassette, wherein at least one of the fresh dialysis fluid membrane pump, the spent dialysis fluid membrane pump, the first balance chamber and the second balance chamber includes a fluid receiving portion provided in the dialysis fluid cassette. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A dialysis system comprising:
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a fresh dialysis fluid membrane pump; a spent dialysis fluid membrane pump; a dialysis fluid cassette including a first rigid portion and a second rigid portion, the first and second rigid portions defining a chamber, a flexible sheet located between the rigid portions so as to form a fresh dialysis fluid compartment and a spent dialysis fluid compartment; and wherein the fresh dialysis fluid membrane pump is in fluid communication with the fresh dialysis fluid compartment and the spent dialysis fluid pump is in fluid communication with the spent dialysis fluid compartment. - View Dependent Claims (15, 16, 17, 18)
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19. A dialysis system comprising:
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a dialysis machine; and a dialysis fluid cassette configured and arranged to operate with the dialysis machine, the disposable cassette including fluid carrying portions for, a fresh membrane pump pair including first and second membrane pumps, a spent membrane pump pair including third and fourth membrane pumps, a first balance chamber including a fresh dialysis fluid compartment and a spent dialysis fluid compartment, the first and second membrane pumps of the fresh membrane pump pair in fluid communication with the fresh dialysis fluid compartment of the first balance chamber, the third and fourth membrane pumps of the spent membrane pump pair in fluid communication with the spent dialysate fluid compartment of the first balance chamber, and a second balance chamber including a fresh dialysis fluid compartment and a spent dialysis fluid compartment, the first and second membrane pumps of the fresh membrane pump pair in fluid communication with the fresh dialysis fluid compartment of the second balance chamber, the third and fourth membrane pumps of the spent membrane pump pair in fluid communication with the spent dialysate fluid compartment of the second balance chamber. - View Dependent Claims (20)
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Specification