Method for optimizing tidal therapies employing ultrafiltrate trending
AssigneesBaxter International Inc., Baxter Healthcare S.A.
InventorsRobert W. Childers, Peter A. Hopping
Life of this patent
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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.
Claims21
An automated peritoneal dialysis method comprising:
- (i) pumping dialysis fluid to a patient during a fill phase;
- (ii) allowing the dialysis fluid to dwell within the patient during a dwell phase;
- (iii) pumping effluent dialysis fluid from the patient during a patient drain phase;
- (iv) determining a trended ultrafiltration (“UF”) data point corresponding to an amount of UF removed from the patient during the patient drain phase;
- (v) repeating (i) to (iv) at least once;
- (vi) operating a processor to determine an amount of the effluent dialysis fluid to remove from the patient during at least one subsequent patient drain phase based on at least two trended UF data points for the patient;
- and
- (vii) repeating (i) to (iii) at least one additional time before a final cycle of (i) to (iii) such that the amount of the effluent dialysis fluid determined in (vi) is pumped during the at least one subsequent patient drain phase.
An automated peritoneal dialysis method comprising:
- pumping dialysis fluid to and from a patient over a treatment according to a plurality of patient fills, dwells, and drains;
- and
- operating a processor to
- (i) determine trended ultrafiltration (“UF”) data points corresponding to an amount of UF removed from the patient during the patient drains,
- (ii) access the trended UF data points for the patient,
- (iii) determine at least one of (a) a subsequent fill volume and (b) a subsequent drain volume based on at least two of the trended UF data points to predict the patient's intra-peritoneal volume (“IPV”) at an end of at least one of the plurality of patient dwells, and
- (iv) perform at least one subsequent patient fill, dwell, and drain before a final patient fill and drain such that dialysis fluid is pumped based on the at least one of (a) and (b) determined in (iii).
An automated peritoneal dialysis method comprising:
- controlling dialysis fluid to and from a patient over a tidal treatment including a plurality of patient fills, dwells, and reduced-volume drains;
- and
- operating a processor to
- (i) determine trended ultrafiltration (“UF”) data points corresponding to an amount of UF removed from the patient during the patient drains,
- (ii) access the trended UF data points for the patient,
- (iii) predict a residual volume of effluent fluid left in the patient's peritoneum after at least one of the reduced-volume patient drains during the tidal treatment based on at least two of the trended UF data points, and
- (iv) perform at least one subsequent patient fill, dwell, and reduced-volume drain before a final patient fill and drain such that at least one of the patient fill and the reduced-volume drain of the at least one subsequent patient fill, dwell, and reduced-volume drain are adjusted based on the residual volume predicted in (iii).
Dependencies are inferred from the claim text.