DIALYSIS SYSTEMS HAVING SPIRALING FLUID AIR SEPARATION CHAMBERS
First Claim
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1. A dialysis system comprising:
- a fluid pump; and
an air separation chamber in fluid communication with the fluid pump and including an inner surface, a fluid inlet and a fluid outlet, the air separation chamber configured to cause the fluid to spiral around the inner surface toward the fluid outlet to remove air from the fluid.
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Abstract
A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including an inner surface, a fluid inlet and a fluid outlet and configured to cause a dialysis fluid to spiral around the inner surface toward the fluid outlet, such that air is removed from the dialysis fluid.
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Citations
20 Claims
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1. A dialysis system comprising:
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a fluid pump; and an air separation chamber in fluid communication with the fluid pump and including an inner surface, a fluid inlet and a fluid outlet, the air separation chamber configured to cause the fluid to spiral around the inner surface toward the fluid outlet to remove air from the fluid. - 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 fluid valve; and an air separation chamber in fluid communication with the fluid valve, the air separation chamber including a fluid inlet and a fluid outlet communicating fluidly with an inner surface of the air separation chamber, the inner surface configured to promote the spiraling of a fluid to remove air from the fluid. - View Dependent Claims (15, 16, 17)
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18. A dialysis system employing an air removal method, the method comprising:
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introducing fluid potentially containing air horizontally into an upper portion of a chamber; forcing the fluid potentially containing air to spiral around the chamber from the upper portion to a lower portion of the chamber; and allowing the fluid to exit from the lower portion of the chamber and air to migrate towards the upper portion of the chamber. - View Dependent Claims (19, 20)
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Specification