Abstract:
A dialysis system includes a dialyzer; a blood pump coupled operably to a dialyzer; a dialysate inlet pump couple operably to a dialysate inlet of the dialyzer; a dialysate outlet pump coupled operably to a dialysate outlet of the dialyzer; a first non-invasive fluid velocity sensor positioned to sensor of inlet flowrate of dialysate pumped to the dialysate inlet by the dialysate inlet pump; and a second non-invasive fluid velocity sensor positioned to sense an outlet flowrate of dialysate pumped from the dialysate outlet by the dialysate outlet pump.
Abstract:
A kidney failure therapy system includes: (a) a dialysate supply; (b) at least one valve actuator; (c) at least one pump actuator; and (d) a disposable unit including first and second flexible sheets sealed together for form: (i) at least one flow path configured to be placed in fluid communication with the dialysate supply; and operable with the at least one valve actuator; and (ii) a least one pumping portion configured to operate with the at least one pump actuator.
Abstract:
Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodeionization capabilities are provided. In an embodiment, the dialysis system (10) includes a carbon source (40), a urease source (50) and an electrodeionization unit (30). The carbon source (40) and urease source (50) can be in the form of removable cartridges.
Abstract:
A dialysis system includes a dialyzer (34); a blood pump (18c) coupled operably to a dialyzer; a dialysate inlet pump (18a) coupled operably to a dialysate inlet of the dialyzer; a dialysate outlet pump (18b) coupled operably to a dialysate outlet of the dialyzer; a first non-invasive fluid velocity sensor (40a) positioned to sensor of inlet flowrate of dialysate pumped to the dialysate inlet by the dialysate inlet pump; and a second non-invasive fluid velocity sensor (40b) positioned to sense an outlet flowrate of dialysate pumped from the dialysate outlet by the dialysate outlet pump.
Abstract:
A method for cleaning a blood filter includes: (i) pumping a physiologically safe fluid back and fourth through the insides and/or the outsides of a plurality of hollow fiber membranes of the blood filter to remove or loosen blood residuals, such as blood clots, proteins and/or biological fluid; (ii) injecting air into the physiologically safe fluid to form an air/fluid mixture; (iii) pumping the air fluid mixture through the insides and/or outsides of the plurality of the hollow fiber membranes of the blood filter to further or remove or loosen blood residuals therefrom; and (iv) removing the air/physiologically safe fluid mixture along with the removed or loosened blood residuals to drain.
Abstract:
A method for cleaning a blood filter includes: (i) pumping a physiologically safe fluid back and fourth through the insides and/or the outsides of a plurality of hollow fiber membranes of the blood filter to remove or loosen blood residuals, such as blood clots, proteins and/or biological fluid; (ii) injecting air into the physiologically safe fluid to form an air/fluid mixture; (iii) pumping the air fluid mixture through the insides and/or outsides of the plurality of the hollow fiber membranes of the blood filter to further or remove or loosen blood residuals therefrom; and (iv) removing the air/physiologically safe fluid mixture along with the removed or loosened blood residuals to drain.
Abstract:
A method for cleaning a blood filter includes: (i) pumping a physiologically safe fluid back and fourth through the insides and/or the outsides of a plurality of hollow fiber membranes of the blood filter to remove or loosen blood residuals, such as blood clots, proteins and/or biological fluid; (ii) injecting air into the physiologically safe fluid to form an air/fluid mixture; (iii) pumping the air fluid mixture through the insides and/or outsides of the plurality of the hollow fiber membranes of the blood filter to further or remove or loosen blood residuals therefrom; and (iv) removing the air/physiologically safe fluid mixture along with the removed or loosened blood residuals to drain.
Abstract:
A system and method for determining a concentration of total chlorine in dialysis water are provided. The system comprises a main unit housing an iodide/water sample chamber and a reducing agent chamber. An electrode pair bridges the two chambers and generates tri-iodide proportional to the amount of total chlorine in the dialysis water. The electrode pair detects the amount of tri-iodide generated in proportion to the amount of active chloride in the dialysis water. The system is suitable for use in connection with, or for incorporation into, a water purification system for generating dialysis fluid, and may include a display that alerts the user to stop or prevent a hemodialysis treatment if the total chlorine level exceeds a predetermined level.
Abstract:
Un método de arrastre de fluido de tratamiento renal incluye arrastrar un circuito extra corporal (30) conectado a un paciente con un fluido fisiológicamente compatible, el circuito extra corporal incluye una línea arterial, una línea venosa y un compartimiento de sangre de un filtro de sangre (34); y bombear desde una línea de fluido de tratamiento renal en comunicación con el filtro de sangre (i) extrayendo sangre del paciente a través de la línea arterial para hacer fluir el fluido fisiológicamente compatible a través de la línea arterial y el compartimiento de filtro de sangre hacia la línea de fluido de tratamiento renal y (ii extrayendo sangre del paciente a través de la línea venosa para hacer fluir el fluido fisiológicamente compatible través de la línea venosa y el compartimiento de filtro de sangre en la línea de fluido de tratamiento renal, para que se extraiga un volumen mayor de sangre desde el paciente a través de (i) y (ii) que un volumen del circuito extra corporal.
Abstract:
A renal therapy apparatus includes a blood filter including a plurality of hollow fiber membranes, arterial and venous lines in fluid communication with the blood filter, a blood pump for pumping blood through the arterial and venous lines and the blood filter, a treatment fluid pump in fluid communication with (a) a treatment fluid side of the blood filter or (b) the arterial or venous lines, and a control unit configured to control the blood pump and the treatment fluid pump during treatment and at least one of the blood pump or the treatment fluid pump during a filter cleaning sequence in which (i) in a first phase of the filter cleaning sequence, a first fluid including a blood-compatible and physiologically safe fluid is transferred back and forth across the insides and/or outsides of the plurality of hollow fiber membranes, (ii) after the first phase, a second fluid is formed by mixing the first fluid with air, and (iii) in a second phase of the filter cleaning sequence, the second fluid is transferred across the insides and/or outsides of the plurality of hollow fiber membranes at least one time, wherein the use of the first and second fluids including the physiologically safe fluid enables the filter cleaning sequence to be performed, if desired, during the treatment. Q/12/210f