摘要:
Systems and methods are provided for determining an estimated risk of arrhythmia during or after dialysis based on changes in serum potassium concentration of a patient and an amount of fluid removed from the patient during dialysis. The systems and methods allow for a determination of a risk that arrhythmia will occur due to the changes in potassium and fluid volume of a patient during dialysis, and for optimizing a dialysis prescription in order to minimize the risk of arrhythmia.
摘要:
In embodiments of the invention, there is provided a dialyzer or filter comprising hollow fibers, in which blood flows on the exterior of the hollow fibers, and dialysate or filtrate may flow on the inside. The external surfaces of the hollow fibers may have properties of smoothness and hemocompatibility. The fiber bundle may have appropriate packing fraction and may have wavy fibers. Optimum shear rates and blood velocities are identified. Geometric features of the cartridge, such as pertaining to flow distribution of the blood, may be different for different ends of the cartridge. Air bleed and emboli traps may be provided. Lengthened service life may be achieved by combinations of these features, which may permit additional therapies and applications or better economics.
摘要:
According to some embodiments, a system may treat blood outside the body of a patient. The system may include one or more pumps configured to draw blood from a patient into a fluid flow path at a rate, for example, of 5-7 liters per minute. The system may include one or more heat exchangers coupled to the fluid flow path and configured to heat the blood, for example, to a temperature above 42 degrees Celsius and below 43.2 degrees Celsius.
摘要:
Systems and methods for purification and concentration of autologous alpha-2 macroglobulin (A2M) from whole blood and or recombinant A2M are provided. Also provided are methods of treating wounds with A2M. Methods for utilizing A2M in combination with other treatments (e.g., platelets and other growth factors) are provided in addition to combinations with exogenous drugs or carriers. Also provided is a method of producing recombinant A2M wild type or variants thereof where the bait region was modified to enhance the inhibition characteristics of A2M and/or to prolong the half-life of the protein for treating wounds.
摘要:
It is described an extracorporeal blood treatment apparatus (1) with a user interface (12) device capable configuring and allowing execution of one or more isolated ultrafiltration tasks during the course of a dialysis treatment. The extracorporeal blood treatment apparatus (1) is controlled in a normal mode, where dialysis fluid is fed to the blood treatment unit (2), and in an isolated ultrafiltration mode, where fresh dialysis fluid is no longer fed to the blood treatment unit (2).
摘要:
A system for ultrafiltration employs a crossflow filtration module for extracting a fraction from a sample fluid (e.g., blood) and a recirculating permeate loop to produce a concurrent permeate flow through the filtration module to maintain a positive transmembrane pressure at all points of the crossflow filter. Permeate in the recirculating loop is enriched by a processing module and stabilized by removing an enriched fraction thereof. In an embodiment, the enriched fraction is concentrated plasma that is returned to a patient.
摘要:
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.
摘要:
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.
摘要:
Disclosed herein are methods, systems and devices to monitor vascular volume status during renal replacement therapy utilizing at least one oximetry/photoplethysmography sensor. The methods, systems and devices provide an alternative to conventional vascular volume monitoring methods during renal replacement therapy while enabling reliable, non-invasive, and automatic monitoring of vascular volume to avert patient hypotension. The methods, systems and devices may be employed in the context of both inpatient and outpatient dialysis facilities and may also be incorporated into conventional hemodialysis and hemo filtration techniques and equipment.
摘要:
Blood filtering device (1), comprising: * a filter body (3; 103), having an inlet port (4; 104) for blood to be filtered; * a delivery flexible hose (5; 105) of the blood to be filtered, apt to be connected to said inlet port (4; 104) and to further ducts linked to a circulatory system; * peristaltic pump means (10; 105, 109, 114, 115, 117, 118, 143, 144, 145), wherein a case (16; 116) forms at least one peristaltic pump rotor chamber (13; 114), apt to house inside a portion of said delivery flexible hose (5; 105) for obtaining a peristaltic effect, wherein said case (16; 116) defines means for maintaining said filter body (3; 103) in a working position.