Peritoneal equilibration test and dialysis system using same
First Claim
Patent Images
1. A peritoneal dialysis system comprising:
- a housing;
at least one pump carried by the housing and configured to fill a patient with fresh dialysate and drain spent dialysate from the patient; and
a logic implementer configured in an ultrafiltration evaluation sequence to;
(i) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a first dwell time;
(ii) determine, as a portion of the first spent dialysate, a first amount of ultrafiltrate (“
UF”
) removed from the patient for the first dwell time;
(iii) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a second and different dwell time;
(iv) determine, as a portion of the second spent dialysate, a second amount of UF removed from the patient for the second, different dwell time;
(v) fit a curve to at least the first UF removal amount and the second UF removal amount; and
(vi) use the curve to determine an optimal dwell time or dwell time range for the patient.
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Accused Products
Abstract
An ultrafiltration (“UF”) evaluation method includes: (i) determining an amount of UF removed from a patient over a first dwell time; (ii) determine an amount of UF removed from the patient over a second, different dwell time; (iii) determining an amount of UF removed from the patient over a third, different dwell time; and (iv) fitting a curve to the UF removal amounts for the first, second and third dwell time. A peritoneal dialysis therapy generation method using the curve determined according to the “UF” evaluation method to generate at least one peritoneal dialysis therapy regimen.
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Citations
20 Claims
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1. A peritoneal dialysis system comprising:
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a housing; at least one pump carried by the housing and configured to fill a patient with fresh dialysate and drain spent dialysate from the patient; and a logic implementer configured in an ultrafiltration evaluation sequence to; (i) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a first dwell time; (ii) determine, as a portion of the first spent dialysate, a first amount of ultrafiltrate (“
UF”
) removed from the patient for the first dwell time;(iii) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a second and different dwell time; (iv) determine, as a portion of the second spent dialysate, a second amount of UF removed from the patient for the second, different dwell time; (v) fit a curve to at least the first UF removal amount and the second UF removal amount; and (vi) use the curve to determine an optimal dwell time or dwell time range for the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A peritoneal dialysis system comprising:
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a housing; at least one pump carried by the housing and configured to fill a patient with fresh dialysate and drain spent dialysate from the patient; and a logic implementer configured in an ultrafiltration evaluation sequence to; (i) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a first dwell time such that no residual volume remains in the patient; (ii) determine, as a portion of the first spent dialysate, a first amount of ultrafiltrate (“
UF”
) removed from the patient for the first dwell time;(iii) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a second and different dwell time such that no residual volume remains in the patient; (iv) determine, as a portion of the second spent dialysate, a second amount of UF removed from the patient for the second, different dwell time; (v) fit a curve to at least the first UF removal amount and the second UF removal amount; and (vi) use the curve to determine an optimal dwell time or dwell time range for the patient. - View Dependent Claims (14, 15, 16, 17)
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18. A peritoneal dialysis system comprising:
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a housing; at least one pump carried by the housing and configured to fill a patient with fresh dialysate and drain spent dialysate from the patient; and a logic implementer configured in an ultrafiltration evaluation sequence to; (i) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a first dwell time to remove all of the fresh dialysate pumped to the patient plus an expected first amount of ultrafiltrate (“
UF”
);(ii) determine, as a portion of the first spent dialysate, a first actual amount of UF removed from the patient for the first dwell time; (iii) cause the at least one pump to pump fresh dialysate to the patient and drain spent dialysate from the patient after a second and different dwell time to remove all of the fresh dialysate pumped to the patient plus an expected second amount of UF; (iv) determine, as a portion of the second spent dialysate, a second actual amount of UF removed from the patient for the second, different dwell time; (v) fit a curve to at least the first UF removal amount and the second UF removal amount; and (vi) use the curve to determine an optimal dwell time or dwell time range for the patient. - View Dependent Claims (19, 20)
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Specification