Systems and methods for performing peritoneal dialysis
A regenerative peritoneal dialysis system includes a dialysis fluid loop; a filter located in the dialysis fluid loop, a first portion of the dialysis fluid sent to the filter rejected by the filter and returned upstream of the filter, a second portion of the dialysis fluid sent to the filter forming permeate, the permeate being rich in urea; and a urea removing apparatus located in the dialysis fluid loop downstream from the filter to receive the permeate and absorb urea from the permeate.
1. A regenerative peritoneal dialysis method comprising:
fluidly communicating a regeneration loop with a patient loop, the regeneration loop including a filter and a urea absorbing system;
sending fluid to the filter located in the regenerative loop;
rejecting a first portion of the fluid sent to the filter;
returning the rejected first portion of the fluid upstream of the filter so that the rejected first portion of the fluid avoids the urea absorbing system;
forming permeate with a second portion of the fluid sent to the filter; and
absorbing urea from the permeate using the urea absorbing system.
2. The regenerative peritoneal dialysis method of claim 1 , wherein the urea absorbing system includes a cartridge to absorb the urea from the permeate.
3. The regenerative peritoneal dialysis method of claim 1 , which includes absorbing the urea via (i) reverse osmosis, (ii) electrooxidization, or (iii) a sorbent material.
4. The regenerative peritoneal dialysis method of claim 1 , which includes pumping fluid through the regeneration loop with a first pump and pumping fluid through the patient loop with a second pump.
5. The regenerative peritoneal dialysis method of claim 1 , which includes cleaning the patient loop with at least one of: (i) activated charcoal, and (ii) an anion exchange.
6. The regenerative peritoneal dialysis method of claim 1 , which includes cleaning the patient loop upstream of a fluid communication junction between the patient loop and the regeneration loop.
7. The regenerative peritoneal dialysis method of claim 1 , which includes flowing fluid through the regeneration loop at a rate that is greater than a fluid rate through the patient loop.
8. The regenerative peritoneal dialysis method of claim 1 , which includes locating a filter in the patient loop.
9. The regenerative peritoneal dialysis method of claim 8 , which includes locating the filter downstream of a fluid communication junction between the patient loop and the regeneration loop.
10. The regenerative peritoneal dialysis method of claim 1 , which includes causing a solution container to fluidly communicate the regeneration loop with the patient loop.
11. The regenerative peritoneal dialysis method of claim 10 , which includes returning the rejected first portion of fluid to the solution container.
12. The regenerative peritoneal dialysis method of claim 10 , which includes flowing urea absorbed from the permeate to the solution container.
13. A regenerative peritoneal dialysis method comprising:
fluidly communicating a dialysis fluid loop with a patient loop, the dialysis fluid loop including a filter and a urea removing apparatus;
sending dialysis fluid to the filter located in the dialysis fluid loop;
rejecting a first portion of the dialysis fluid sent to the filter;
returning the rejected first portion of the dialysis fluid upstream of the filter so that the rejected first portion of the dialysis fluid avoids the urea removing apparatus;
forming a permeate with a second portion of the dialysis fluid sent to the filter;
receiving the permeate downstream from the filter; and
absorbing urea from the permeate using the urea removing apparatus.
14. The regenerative peritoneal dialysis method of claim 13 , which includes filtering the dialysis fluid in the patient loop.
15. The regenerative peritoneal dialysis method of claim 13 , which includes absorbing the urea via (i) a sorbent apparatus, (ii) a reverse osmosis apparatus, or (iii) an electrooxidation apparatus.
16. The regenerative peritoneal dialysis method of claim 13 , wherein the urea removing apparatus includes a cartridge.
17. The regenerative peritoneal dialysis method of claim 13 , which includes returning the rejected first portion of dialysis fluid to a fluid communication junction located between the dialysis fluid loop and a patient loop in fluid communication with the dialysis loop.