Weight/sensor-controlled sorbent system for hemodialysis
First Claim
Patent Images
1. A hemodialysis system comprising:
- a dialyzer;
a blood circuit including a blood pump in fluid communication with the dialyzer;
a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate;
a container holding an initial supply of dialysate;
a container pump in fluid communication with the dialysate circuit and the container;
a supply of concentrate, wherein the container pump is also positioned and arranged to pump concentrate from the concentrate supply to the dialysate circuit; and
an electronic weight balance positioned and arranged to weigh the supply of concentrate.
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Accused Products
Abstract
A hemodialysis system including (i) a dialyzer; (ii) a blood circuit including a blood pump in fluid communication with the dialyzer; (iii) a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate; (iv) a container holding an initial supply of dialysate; (v) a container pump in fluid communication with the dialysate circuit and the container; (vi) a supply of concentrate; and (vii) an electronic weight balance positioned and arranged to weigh the supply of concentrate.
252 Citations
22 Claims
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1. A hemodialysis system comprising:
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a dialyzer; a blood circuit including a blood pump in fluid communication with the dialyzer; a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate; a container holding an initial supply of dialysate; a container pump in fluid communication with the dialysate circuit and the container; a supply of concentrate, wherein the container pump is also positioned and arranged to pump concentrate from the concentrate supply to the dialysate circuit; and an electronic weight balance positioned and arranged to weigh the supply of concentrate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A hemodialysis system comprising:
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a dialyzer; a blood circuit including a blood pump in fluid communication with the dialyzer; a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate; a container holding an initial supply of dialysate; a supply of concentrate; a concentrate pump positioned and arranged to pump concentrate from the concentrate supply to the dialysate circuit; and an electronic weight balance positioned and arranged to weigh the dialysate supply container. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A hemodialysis system comprising:
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a dialyzer; a blood circuit including a blood pump in fluid communication with the dialyzer; a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate; a container holding an initial supply of dialysate; a supply of concentrate; a concentrate pump positioned and arranged to pump concentrate from the concentrate supply to the dialysate circuit; and wherein the hemodialysis system is configured to electronically weigh the dialysate supply container. - View Dependent Claims (19)
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20. A hemodialysis system comprising:
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a dialyzer; a blood circuit including a blood pump in fluid communication with the dialyzer; a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate and at least one sensor for sensing a toxin level of dialysate flowing through the dialysate circuit; a container holding an initial supply of dialysate; a container pump in fluid communication with the dialysate circuit and the container; a supply of concentrate; and an electronic weight balance positioned and arranged to weigh the supply of concentrate. - View Dependent Claims (21)
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22. A hemodialysis system comprising:
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a dialyzer; a blood circuit including a blood pump in fluid communication with the dialyzer; a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate, and wherein the dialysate circuit is vented at the sorbent cartridge; a container holding an initial supply of dialysate; a container pump in fluid communication with the dialysate circuit and the container; a supply of concentrate; and an electronic weight balance positioned and arranged to weigh the supply of concentrate.
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Specification