Systems and methods for priming sorbent-based hemodialysis
First Claim
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1. A method for priming a hemodialysis treatment comprising:
- providing a sorbent cartridge for cleaning spent dialysate fluid returning from a dialyzer;
preparing a batch of dialysate 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 dialysate; and
reversing a blood pump at least one time to prime a blood circuit in fluid communication with the dialyzer using a biologically safe fluid other than dialysate.
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Abstract
A method for priming a hemodialysis treatment includes (i) providing a sorbent cartridge for cleaning spent dialysate fluid returning from a dialyzer; (ii) preparing a batch of dialysate in a quantity commensurate with being recycled through the sorbent cartridge multiple times; (iii) priming a dialysate circuit in fluid communication with the dialyzer using the batch of dialysate; and (iv) reversing a blood pump at least one time to prime a blood circuit in fluid communication with the dialyzer using a biologically safe fluid other than dialysate.
153 Citations
19 Claims
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1. A method for priming a hemodialysis treatment comprising:
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providing a sorbent cartridge for cleaning spent dialysate fluid returning from a dialyzer; preparing a batch of dialysate 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 dialysate; and reversing a blood pump at least one time to prime a blood circuit in fluid communication with the dialyzer using a biologically safe fluid other than dialysate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for priming a hemodialysis treatment comprising:
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providing a sorbent cartridge for cleaning spent dialysate fluid returning from a dialyzer; preparing a batch of dialysate 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 dialysate; and priming a blood circuit by allowing a biologically safe fluid to be drawn into the blood circuit and to flow in different directions within the blood circuit. - View Dependent Claims (13, 14, 15, 16)
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17. A dialysis system comprising:
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a batch container; a sorbent cartridge; first and second dialysate pumps; a blood pump; a source of biologically safe fluid; a dialyzer; a dialysate circuit (i) in fluid communication with the batch container, the sorbent cartridge, and the dialyzer and (ii) in operable communication with the first and second dialysate pumps; a blood circuit (i) in fluid communication with the source of biologically safe fluid and the dialyzer and (ii) in operable communication with the blood pump; and at least one processor configured and arranged to operate a priming sequence in which (i) dialysate prepared in the batch container is flowed through the dialysate circuit (ii) the biologically safe fluid is drawn from the source and (iii) the blood pump is reversed to flow the biologically safe fluid through the blood circuit. - View Dependent Claims (18, 19)
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Specification