Systems and methods for performing peritoneal dialysis
First Claim
1. A system for providing dialysis comprising:
- a patient fluid loop including a first pump, a first patient lumen for providing fluid to the patient, and a second patient lumen for removing fluid from the patient;
a multiple lumen connector for connecting with the first and second patient lumens of the patient fluid loop, the connector configured to be sealed by a removable connector end cap such that the pump can prime the patient, wherein the first patient lumen extends further into the multiple lumen connector than the second patient lumen fluid loop prior to being connected to the patient;
a second fluid loop including a second pump, a medical fluid regenerator, and a gas separator that separates gases from the second fluid loop;
a membrane device in fluid contact with and separating the patient fluid loop and the second fluid loop, the membrane device allowing at least one selected component of the fluid in the patient fluid loop to transfer to the second fluid loop;
the second loop being closed except for the transfer of the selected component via the membrane device; and
a controller that operates the first and second pumps to recirculate fluid in the patient loop and the second loop.
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Accused Products
Abstract
In a peritoneal dialysis embodiment of the present invention, spent dialysate from the patient'"'"'s peritoneal cavity passes, along a patient loop, through a dialyzer having a membrane that separates waste components from the spent dialysate, wherein the patient loop returns fresh dialysate to the patient'"'"'s peritoneal cavity. The waste components are carried away in a second regeneration loop to a regeneration unit or sorbent cartridge, which absorbs the waste components. The regeneration unit removes undesirable components in the dialysate that were removed from the patient loop by the dialyzer, for example, excess water (ultrafiltrate or UF), toxins and metabolic wastes. Desirable components can be added to the dialysate by the system, such as glucose and electrolytes. The additives assist in maintaining the proper osmotic gradients in the patient to perform dialysis and provide the necessary compounds to the patient.
389 Citations
27 Claims
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1. A system for providing dialysis comprising:
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a patient fluid loop including a first pump, a first patient lumen for providing fluid to the patient, and a second patient lumen for removing fluid from the patient; a multiple lumen connector for connecting with the first and second patient lumens of the patient fluid loop, the connector configured to be sealed by a removable connector end cap such that the pump can prime the patient, wherein the first patient lumen extends further into the multiple lumen connector than the second patient lumen fluid loop prior to being connected to the patient; a second fluid loop including a second pump, a medical fluid regenerator, and a gas separator that separates gases from the second fluid loop; a membrane device in fluid contact with and separating the patient fluid loop and the second fluid loop, the membrane device allowing at least one selected component of the fluid in the patient fluid loop to transfer to the second fluid loop; the second loop being closed except for the transfer of the selected component via the membrane device; and a controller that operates the first and second pumps to recirculate fluid in the patient loop and the second loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification