Dialysis system including cassette with pumping tubes
First Claim
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1. A hemodialysis system comprising:
- a blood treatment machine;
a blood pump housed by the blood treatment machine;
a first dialysate pump housed by the blood treatment machine;
a second dialysate pump housed by the blood treatment machine; and
a fluid cassette including an upper portion and a lower portion, the fluid cassette further including;
a blood pumping tube extending linearly from the upper portion to the lower portion of the fluid cassette such that at least a portion of the blood pumping tube is exposed to the outside of the fluid cassette between the upper portion and the lower portion, the blood pumping tube actuated by the blood pump at the exposed portion,a first dialysate pumping tube extending linearly from the upper portion to the lower portion of the fluid cassette such that at least a portion of the first dialysate pumping tube is exposed to the outside of the fluid cassette between the upper portion and the lower portion, the first dialysate pumping tube actuated by the first dialysate pump at the exposed portion, anda second dialysate pumping tube extending linearly from the upper portion to the lower portion of the fluid cassette such that at least a portion of the second dialysate pumping tube is exposed to the outside of the fluid cassette between the upper portion and the lower portion, the second dialysate pumping tube actuated by the second dialysate pump at the exposed portion.
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Abstract
A hemodialysis system includes a blood treatment machine, a blood pump housed by the blood treatment machine, a first dialysate pump housed by the blood treatment machine, a second dialysate pump housed by the blood treatment machine; and a fluid cassette including an upper portion and a lower portion. The fluid cassette further includes a blood pumping tube extending from the upper portion to the lower portion of the fluid cassette, a first dialysate pumping tube extending from the upper portion to the lower portion of the fluid cassette, and a second dialysate pumping tube extending from the upper portion to the lower portion of the fluid cassette.
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Citations
22 Claims
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1. A hemodialysis system comprising:
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a blood treatment machine; a blood pump housed by the blood treatment machine; a first dialysate pump housed by the blood treatment machine; a second dialysate pump housed by the blood treatment machine; and a fluid cassette including an upper portion and a lower portion, the fluid cassette further including; a blood pumping tube extending linearly from the upper portion to the lower portion of the fluid cassette such that at least a portion of the blood pumping tube is exposed to the outside of the fluid cassette between the upper portion and the lower portion, the blood pumping tube actuated by the blood pump at the exposed portion, a first dialysate pumping tube extending linearly from the upper portion to the lower portion of the fluid cassette such that at least a portion of the first dialysate pumping tube is exposed to the outside of the fluid cassette between the upper portion and the lower portion, the first dialysate pumping tube actuated by the first dialysate pump at the exposed portion, and a second dialysate pumping tube extending linearly from the upper portion to the lower portion of the fluid cassette such that at least a portion of the second dialysate pumping tube is exposed to the outside of the fluid cassette between the upper portion and the lower portion, the second dialysate pumping tube actuated by the second dialysate pump at the exposed portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hemodialysis system comprising:
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a blood treatment machine; a blood pump housed by the blood treatment machine; a first dialysate pump housed by the blood treatment machine; a second dialysate pump housed by the blood treatment machine; and a fluid cassette configured to be inserted into the blood treatment machine in a vertical configuration with an upper portion of the fluid cassette located above a lower portion of the fluid cassette, the fluid cassette including; a blood pumping tube extending vertically from the upper portion to the lower portion of the fluid cassette, at least a portion of the blood pumping tube exposed outside of the fluid cassette and actuated by the blood pump, a first dialysate pumping tube extending vertically from the upper portion to the lower portion of the fluid cassette, at least a portion of the first dialysate pumping tube exposed outside of the fluid cassette and actuated by the first dialysate pump, and a second dialysate pumping tube extending vertically from the upper portion to the lower portion of the fluid cassette, at least a portion of the second dialysate pumping tube exposed outside of the fluid cassette and actuated by the second dialysate pump. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A hemodialysis system comprising:
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a blood treatment machine; a blood pump housed by the blood treatment machine; a first dialysate pump housed by the blood treatment machine; a second dialysate pump housed by the blood treatment machine; and a fluid cassette including; a blood pumping tube extending linearly within the fluid cassette, at least a portion of the linearly extending blood pumping tube exposed outside the fluid cassette for actuation by the blood pump, a first dialysate pumping tube extending linearly within the fluid cassette, at least a portion of the first linearly extending dialysate pumping tube exposed outside the fluid cassette for actuation by the first dialysate pump, a second dialysate pumping tube extending linearly within the fluid cassette, at least a portion of the second linearly extending dialysate pumping tube exposed outside the fluid cassette for actuation by the second dialysate pump, a first pressure sensing portion located downstream of the blood pumping tube, and a second pressure sensing portion located upstream of the blood pumping tube. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification