DRAIN AND FILL LOGIC FOR AUTOMATED PERITONEAL DIALYSIS
First Claim
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1. A dialysis system comprising:
- at least one dialysis fluid pump configured to pump a dialysis fluid to and from a patient during a multi-cycle dialysis therapy; and
a logic implementer configured to control the dialysis fluid pumped by the at least one dialysis fluid pump to and from the patient during the therapy, the logic implementer also configured to calculate cumulative ultrafiltration and to reduce a prescribed fill volume if an amount of a prior incomplete drain causes the cumulative ultrafiltration at an end of the prior drain to exceed a negative ultrafiltration limit.
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Abstract
A system and method for automatically adjusting a Continuous Cycling Peritoneal Dialysis (“CCPD”) therapy to minimize the potential for excess intra-peritoneal volume. The adjustments are made at the end of the drain, just prior to the next fill. The adjustments short the next fill, if necessary, to limit the intra-peritoneal volume, add a cycle, if necessary, to use all of the available dialysis solution and will average the remaining dwell time to maximize the therapeutic benefit of the therapy in the allotted time. In another embodiment, a tidal therapy using trended patient UF data is provided.
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Citations
26 Claims
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1. A dialysis system comprising:
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at least one dialysis fluid pump configured to pump a dialysis fluid to and from a patient during a multi-cycle dialysis therapy; and a logic implementer configured to control the dialysis fluid pumped by the at least one dialysis fluid pump to and from the patient during the therapy, the logic implementer also configured to calculate cumulative ultrafiltration and to reduce a prescribed fill volume if an amount of a prior incomplete drain causes the cumulative ultrafiltration at an end of the prior drain to exceed a negative ultrafiltration limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A dialysis system comprising:
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at least one dialysis fluid pump configured to pump a dialysis fluid to and from a patient during a multi-cycle dialysis therapy; and a logic implementer configured to control the at least one dialysis fluid pump during the therapy, the logic implementer also configured to calculate cumulative drain volume and cumulative fill volume to determine a number of remaining cycles by dividing a total remaining therapy volume by a calculated fill volume, wherein the calculated fill volume is higher or lower than a prescribed fill volume, in order to use substantially all a prescribed therapy volume. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A dialysis system comprising:
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at least one dialysis fluid pump configured to pump a dialysis fluid to and from a patient during a multi-cycle dialysis therapy; and a logic implementer configured to control the at least one dialysis fluid pump during the therapy, the logic implementer also configured to calculate cumulative drain volume and cumulative fill volume to determine a number of remaining cycles by (i) adding one plus (a total remaining therapy volume divided by a prescribed fill volume) if a prior drain was a complete drain or (ii) dividing the total remaining therapy volume by (the prescribed fill volume multiplied by a prescribed tidal percent) if the prior drain was not a complete drain, and if a cycle is added, to calculate a new fill volume by dividing the total remaining therapy volume by the number of remaining cycles. - View Dependent Claims (24, 25, 26)
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Specification