Systems and metods for performing peritoneal dialysis
First Claim
1. A system for providing peritoneal dialysis to a patient, the system comprising:
- a catheter having an inflow lumen and an outflow lumen in communication with the patient'"'"'s peritoneal cavity;
a fluid circuit in fluid communication with the catheter thereby defining a fluid loop capable of circulating a therapy fluid into, through and out of a peritoneal cavity of the patient;
a supply of a dialysate coupled to the fluid circuit;
a cycler that pumps the dialysate into the fluid circuit at a feed rate and circulates the dialysate at a circulation rate along the fluid loop to remove a therapeutic effective amount of solutes and excess water from the patient; and
a discharge fluid path coupled to the fluid loop through which the therapy fluid is drained from the fluid circuit at a discharge rate that is less than the circulation rate allowing the therapy fluid to be circulated a plurality of times along the fluid loop prior to discharge.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for providing multiple pass continuous flow dialysis therapy are provided. The present invention includes a fluid circuit connected to a patient via a catheter thereby defining a fluid loop along which a therapy fluid including a dialysate can be continuously circulated into, through and out of a peritoneal cavity of a patient to remove a therapeutically effective amount of excess water and solutes including uremic toxins. The feed rate and discharge rate of therapy fluid into the fluid loop can be controllably regulated in proportion to the circulation rate of fluid in the fluid loop such that the therapy fluid can pass a multiple number of times along the fluid loop prior to discharge.
206 Citations
65 Claims
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1. A system for providing peritoneal dialysis to a patient, the system comprising:
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a catheter having an inflow lumen and an outflow lumen in communication with the patient'"'"'s peritoneal cavity;
a fluid circuit in fluid communication with the catheter thereby defining a fluid loop capable of circulating a therapy fluid into, through and out of a peritoneal cavity of the patient;
a supply of a dialysate coupled to the fluid circuit;
a cycler that pumps the dialysate into the fluid circuit at a feed rate and circulates the dialysate at a circulation rate along the fluid loop to remove a therapeutic effective amount of solutes and excess water from the patient; and
a discharge fluid path coupled to the fluid loop through which the therapy fluid is drained from the fluid circuit at a discharge rate that is less than the circulation rate allowing the therapy fluid to be circulated a plurality of times along the fluid loop prior to discharge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for providing peritoneal dialysis to a patient, the system comprising:
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a catheter having an inflow lumen and an outflow lumen in communication with the patient'"'"'s peritoneal cavity;
a fluid circuit in fluid communication with the catheter thereby defining a fluid loop capable of circulating a therapy fluid into, through and out of a peritoneal cavity of the patient;
a supply of a dialysate;
a chamber coupled to the fluid loop through which the dialysate can be fed at a feed rate into the fluid loop;
a cycler that pumps the dialysate into the fluid loop and circulates the dialysate along the fluid loop at a circulation rate to remove a therapeutic effective amount of solutes and excess water from the patient; and
a discharge fluid path coupled to the fluid loop through which the therapy fluid is drained from the fluid circuit at a discharge rate effective to cause the therapy fluid to be circulated a plurality of times along the fluid loop prior to discharge. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for providing peritoneal dialysis to a patient, the system comprising:
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a catheter having an inflow lumen and outflow lumen in communication with the patient'"'"'s peritoneal cavity;
a fluid circuit in fluid communication with the catheter thereby defining a fluid loop capable of circulating a therapy fluid into, through and out of the peritoneal cavity;
a supply of a dialysate coupled to the fluid loop;
a cycler that pumps the dialysate into the fluid loop at a feed rate and circulates the dialysate along the fluid loop at a circulation rate to remove a therapeutic effective amount of solutes and excess water from the patient;
a cleaning device coupled to the fluid loop via a cleaning fluid path wherein the therapy fluid including the dialysate can be fed into the cleaning fluid path and cleaned at a cleaning rate prior to reintroduction into the fluid loop; and
a discharge fluid path coupled to the fluid loop through which the therapy fluid is drained at a discharge rate effective to circulate the therapy fluid a plurality of times along the fluid loop prior to discharge. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A method of providing peritoneal dialysis to a patient, the method comprising the steps of:
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coupling a fluid circuit in fluid communication to a catheter in a peritoneum of the patient thereby defining a fluid loop along which a therapy fluid is capable of being circulated into, through and out of the peritoneum;
supplying a source of dialysate to the fluid loop at supply rate;
circulating the therapy fluid including the dialysate along the fluid loop at a circulation rate to remove a therapeutic effective amount of excess water and solutes from the patient;
draining the fluid loop of the therapy fluid at a discharge rate; and
causing the dialysate to circulate a plurality of times along the fluid loop prior to discharge. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A method of providing peritoneal dialysis to a patient, the method comprising the steps of:
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coupling a fluid circuit in fluid communication to a catheter in a peritoneum of the patient thereby defining a fluid loop along which a therapy fluid is capable of being circulated into, through and out of the peritoneum;
coupling a chamber to the fluid loop;
supplying a source of dialysate to the fluid loop through the chamber at a supply rate;
circulating the therapy fluid including the dialysate along the fluid loop at a circulation rate to remove a therapeutically effective amount of excess water and solutes from the patient; and
draining the fluid loop of the therapy fluid at a discharge rate effective to cause the dialysate to circulate a plurality of times along the fluid loop prior to discharge. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A method for reducing an amount of dialysate used during dialysis therapy, the method comprising the steps of:
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coupling a fluid circuit in fluid communication to a catheter in a peritoneum of the patient thereby defining a fluid loop along which a therapy fluid is capable of being circulated into, through and out of the peritoneum;
supplying a source of dialysate in an amount of about 25 liters or less to the fluid loop at a supply rate;
circulating the therapy fluid including the dialysate along the fluid loop at a circulation rate to remove a therapeutically effective amount of ultrafiltrate and solutes from the patient;
draining the fluid loop of the therapy fluid at a discharge rate; and
causing the dialysate to circulate a plurality of times along the fluid loop prior to discharge. - View Dependent Claims (60, 61, 62, 63, 64, 65)
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Specification