Systems and methods for priming hemodialysis using dialysis fluid
First Claim
1. A method for priming a hemodialysis treatment comprising:
- providing a disposable cassette including at least a portion of a dialysate circuit and at least a portion of a blood circuit;
placing a dialyzer in fluid communication with the dialysate circuit via a to-dialyzer dialysate line and a from-dialyzer dialysate line;
placing the dialyzer in fluid communication with the blood circuit via an arterial blood line and a venous blood line;
placing a source of dialysis fluid in fluid communication with the dialyzer;
priming the dialysate circuit with dialysis fluid from the source while both the to-dialyzer dialysate line and the from-dialyzer dialysate line are connected at their dialyzer ends to the dialyzer; and
priming the blood circuit with dialysis fluid from the source by actuating at least one valve provided by the disposable cassette.
1 Assignment
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Accused Products
Abstract
A method for priming a hemodialysis treatment includes: providing a disposable cassette including at least a portion of a dialysate circuit and at least a portion of a blood circuit; placing a dialyzer in fluid communication with the dialysate circuit via a to-dialyzer dialysate line and a from-dialyzer dialysate line; placing the dialyzer in fluid communication with the blood circuit via an arterial blood line and a venous blood line; placing a source of dialysis fluid in fluid communication with the dialyzer; priming the dialysate circuit with dialysis fluid from the source while both the to-dialyzer dialysate line and the from-dialyzer dialysate line are connected at their dialyzer ends to the dialyzer; and priming the blood circuit with dialysis fluid from the source by actuating at least one valve provided by the disposable cassette.
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Citations
20 Claims
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1. A method for priming a hemodialysis treatment comprising:
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providing a disposable cassette including at least a portion of a dialysate circuit and at least a portion of a blood circuit; placing a dialyzer in fluid communication with the dialysate circuit via a to-dialyzer dialysate line and a from-dialyzer dialysate line; placing the dialyzer in fluid communication with the blood circuit via an arterial blood line and a venous blood line; placing a source of dialysis fluid in fluid communication with the dialyzer; priming the dialysate circuit with dialysis fluid from the source while both the to-dialyzer dialysate line and the from-dialyzer dialysate line are connected at their dialyzer ends to the dialyzer; and priming the blood circuit with dialysis fluid from the source by actuating at least one valve provided by the disposable cassette. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for priming a hemodialysis treatment comprising:
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providing a sorbent cartridge for cleaning used dialysis fluid returning from a dialyzer; preparing a batch of dialysis fluid in a quantity commensurate with being recycled through the sorbent cartridge multiple times; priming a dialysate circuit in fluid communication with the dialyzer using the batch of dialysis fluid, while both a to-dialyzer dialysate line and a from-dialyzer dialysate line are connected at their dialyzer ends to the dialyzer; and priming a blood circuit in fluid communication with the dialyzer using the batch of dialysis fluid. - View Dependent Claims (11, 12, 13, 14)
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15. A dialysis system comprising:
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a dialyzer; a disposable cassette including at least a portion of a dialysate circuit and at least a portion of a blood circuit, the dialysate circuit in fluid communication with the dialyzer via a to-dialyzer dialysate line and a from-dialyzer dialysate line, the blood circuit in fluid communication with the dialyzer via an arterial blood line and a venous blood line; a source of dialysis fluid in fluid communication with the dialyzer; at least one dialysis fluid pump configured to pump dialysis fluid from the source of dialysis fluid through the dialysate circuit; at least one blood pump configured to pump blood from a patient through the blood circuit; and at least one processor configured to operate a sequence in which (i) the dialysate circuit is primed with dialysis fluid from the source of dialysis fluid while both the to-dialyzer dialysate line and the from-dialyzer dialysate line are connected at their dialyzer ends to the dialyzer; and (ii) the blood circuit is primed with dialysis fluid from the source of dialysis fluid by actuating at least one valve provided by the disposable cassette. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification