Abstract:
A hemodiafiltration system with a disposable pumping unit is disclosed. An example system includes a medical fluid pump actuator, a medical fluid heater, a blood filter and a disposable unit. The example disposable unit includes a medical fluid cassette portion including a medical fluid cassette housing configured to be operatively connected to the medical fluid pump actuator to pump medical fluid through the medical fluid cassette portion when the medical fluid cassette portion is in fluid communication with a medical fluid source. The example medical fluid cassette portion is also configured to be placed in fluid communication with the blood filter and with an extracorporeal circuit communicating with the blood filter, the fluid communication enabling hemodiafiltration to be performed. The example disposable unit also includes a heater bag configured to be placed in operable communication with the medical fluid heater and in fluid communication with the medical fluid cassette portion.
Abstract:
A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
Abstract:
A renal failure blood therapy system includes a renal failure blood therapy machine, a test including multiple blood samples taken at multiple times during a test therapy to determine concentration levels for each of a first solute and a second solute at each of the multiple times, and a device programmed to (i) estimate at least one first patient parameter using the determined concentration levels for the first solute, (ii) estimate at least one second patient parameter using the determined concentration levels for the second solute, (iii) determine a first plurality of acceptable treatments using the at least one first patient parameter, (iv) determine a second plurality of acceptable treatments using the at least one second patient parameter, and (v) merge the first plurality of acceptable treatments with the second plurality of acceptable treatments to determine a plurality of clinically acceptable treatments for both the first solute and the second solute.
Abstract:
A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
Abstract:
A hemodialysis system includes: (i) a dialyzer; (ii) a dialysate source; a dialysate pump; (iii) a dialysate cassette operatively connected to the dialysate pump such that the dialysate pump can pump dialysate through the dialysate cassette when the dialysate cassette is in fluid communication with the dialysate source, the dialysate cassette in fluid communication with the dialyzer; (iv) a blood pump; and (v) a blood cassette separate from the dialysate cassette, the blood cassette operatively connected to the blood pump such that the blood pump can pump blood through the blood cassette, the blood cassette including a housing, the housing including a from-patient tube connector, a to-patient tube connector, a saline/priming tube connnector, a to-dialyzer tube connector, a from-dialyzer tube connector, and an internal air separation chamber.
Abstract:
A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
Abstract:
Dialysis treatment devices and methods for removing urea from dialysis waste streams are provided. In a general embodiment, the present disclosure provides a dialysis treatment device including: 1) a first filter having a filtration membrane, 2) a urea removal unit having urease and in fluid communication with the first filter, and 3) a second filter having an ion rejection membrane and in fluid communication with the first filter and the urea removal unit.
Abstract:
A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
Abstract:
Transfer sets are disclosed in the present patent. The transfer set provides a connection between a source of peritoneal dialysis fluid and a patient for whom peritoneal dialysis has been prescribed. The transfer sets disclosed herein are smaller and provide a more compact and convenient device by which a dialysis patient controls the flow of dialysis fluid to and from the peritoneum of the patient. The devices are more compact and convenient because they include more convenient mechanisms for starting and stopping flow of the dialysis fluid. It is also easy to determine whether the mechanism is in a closed or open configuration by simply looking at the mechanism.
Abstract:
A renal therapy system with cassette-based blood and dialysate pumping is disclosed. An example system includes a blood pump actuator, a dialysis fluid pump actuator, a dialysis fluid heater, a dialyzer, and a disposable unit. The example disposable unit includes a blood cassette portion configured to be operatively connected to the blood pump actuator to pump blood through the blood cassette portion. The example disposable unit also includes a dialysis fluid cassette portion, separate from the blood cassette portion, configured to be operatively connected to the dialysis fluid pump actuator to pump dialysis fluid through the dialysis fluid cassette portion. The blood cassette portion and the dialysis fluid cassette portion are both in fluid communication with the dialyzer. The example disposable unit also includes a heater bag configured to be placed in operable communication with the dialysis fluid heater and in fluid communication with the dialysis fluid cassette portion.