Patent classifications
A61M1/341
Dialysis system including wireless sensor data
An example dialysis system includes a dialysis machine and a receiver coded with at least one of an address or a personal identification number (PIN). The dialysis machine is configured to perform a prescribed dialysis treatment on a patient, generate ultrafiltration (UF) removed data over the prescribed dialysis treatment performed by the dialysis machine, and transmit the UF removed data. The example receiver is configured to receive sensor data from a sensor attached to the patient. The at least one coded address or PIN ensures that the sensor data is received by the receiver as opposed to another receiver.
Cassette with a sensor for determining the difference between a first and a second fluid stream
The invention relates to the balancing of fluid streams in a dialysis system. In particular the invention relates to a cassette for conveying a first and a second fluid stream in a dialysis system, wherein the first and the second fluid streams can be medical fluid streams such as for example dialysate streams or blood streams, wherein the cassette has a sensor as a device for balancing the first and the second fluid stream, and wherein the sensor has a first channel for the first fluid stream and a second channel for the second fluid stream. The invention further relates to a dialysis system, which is configured to accommodate at least one cassette which is configured as described above. Furthermore, the present invention relates to an arrangement by which two channels for the first and the second fluid streams are formed. In addition, the invention relates to a method for construction of the two channels or the arrangement.
Process of controlling an apparatus for extracorporeal treatment of blood
An apparatus for extracorporeal treatment of blood (1) comprising a filtration unit (2), a blood withdrawal line (6), a blood return line (7), an effluent fluid line (13), a pre and/or post-dilution fluid line (15, 25) connected to the blood withdrawal line, and a dialysis fluid line. Pumps (17, 18, 21, 22, 27) act on the fluid lines for regulating the flow of fluid. A control unit (10) is configured to periodically calculate a new value for the patient fluid removal rate to be imposed on an ultrafiltration actuator in order to keep a predefined patient fluid removal rate across a reference time interval irrespective of machine down times.
MODULAR MEDICAL FLUID MANAGEMENT ASSEMBLIES AND ASSOCIATED MACHINES AND METHODS
Medical fluid management assembly includes: a pneumatic manifold including multiple plates forming pneumatic passageways, a pneumatic valve chamber and a pneumatic pump chamber, the valve chamber in pneumatic communication with at least one passageway, the pump chamber in pneumatic communication with at least one passageway; and a fluid manifold including multiple fluid pathways, a fluid valve chamber in selective fluid communication with a fluid pump chamber and at least one fluid pathway, wherein (a) the pneumatic valve chamber and the fluid valve chamber are mated together to compress a membrane and (b) the pneumatic pump chamber and the fluid pump chamber are mated together to compress a membrane, wherein at least one of the pneumatic valve chamber or the pneumatic pump chamber extends from the at least one plate, or the fluid valve chamber or the fluid pump chamber extends from the fluid manifold to aid in compressing the membranes.
Systems and methods for priming hemodialysis using dialysis fluid
A method for priming a hemodialysis treatment includes: providing a disposable cassette including at least a portion of a dialysate circuit and at least a portion of a blood circuit; placing a dialyzer in fluid communication with the dialysate circuit via a to-dialyzer dialysate line and a from-dialyzer dialysate line; placing the dialyzer in fluid communication with the blood circuit via an arterial blood line and a venous blood line; placing a source of dialysis fluid in fluid communication with the dialyzer; priming the dialysate circuit with dialysis fluid from the source while both the to-dialyzer dialysate line and the from-dialyzer dialysate line are connected at their dialyzer ends to the dialyzer; and priming the blood circuit with dialysis fluid from the source by actuating at least one valve provided by the disposable cassette.
Renal failure therapy machines and methods including convective and diffusive clearance
A renal failure therapy machine includes a blood cleaning filter, a dialysis fluid circuit including a balance chamber, the balance chamber including a fresh dialysis fluid compartment configured to send fresh dialysis fluid to the blood cleaning filter and a used dialysis fluid compartment configured to receive used dialysis fluid from the blood cleaning filter, a fresh dialysis fluid line in fluid communication with the fresh dialysis fluid compartment of the balance chamber and the blood cleaning filter, and a flow restrictor in fluid communication with the blood cleaning filter, the flow restrictor configured to cause fresh dialysis fluid delivered from the fresh dialysis fluid compartment, through the fresh dialysis fluid line, to the blood cleaning filter to be pressurized so that a first amount of the fresh dialysis fluid performs convective clearance and a second amount of the fresh dialysis fluid performs diffusive clearance.
DIALYSIS SYSTEM AND DISPOSABLE SET
An example peritoneal dialysis system is disclosed. The example peritoneal dialysis system includes an automated peritoneal dialysis (APD) machine comprising a pumping mechanism and a peritoneal dialysis fluid heater. The example peritoneal dialysis system also includes a disposable set comprising a disposable cassette operable with the pumping mechanism and a heater bag operable with the heater. The example peritoneal dialysis system additionally includes a conductivity sensor positioned and arranged to provide feedback to the APD machine. The example APD machine is configured to mix a peritoneal dialysis fluid for treatment in the heater bag using a plurality of peritoneal dialysis constituent fluids. In addition, the example APD machine is configured to use feedback from the conductivity sensor to evaluate the mixed peritoneal dialysis fluid for treatment.
Biological fluid flow control apparatus and method
Apparatus, system and method are provided for controlling flow through a biological fluid processing device. Pressure of fluid flow through a flow path is monitored and flow rate in the flow path is increased or decreased based on sensed pressure levels for selected periods of time. This has particular application in controlling flow in an infusion or return flow path of an apheresis device that separates whole blood into one or more blood components.
Blood processing filter and blood processing filter manufacturing method
A blood processing filter for removing undesirable components from liquid containing a blood component or blood, comprises: a sheet-shaped filter element; and a container that includes an inlet-side container element and an outlet-side container element that are disposed to clamp the filter element, and has an internal space separated by the filter element into an inlet space and an outlet space, wherein the filter element includes a filtering surface on a side of the inlet space, a filtering surface on a side of the outlet space, and an end surface along peripheries of the pair of filtering surfaces, and the inlet-side container element and the outlet-side container element are provided with a gripper, and the gripper clamps and compresses an outer edge portion of the pair of filtering surfaces, and is caused to adhere to the end surface with melt resin.
ADSORBING MATERIAL FOR MULTIPLE PATHOGENIC FACTORS OF SEPSIS AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF
An adsorbing material for multiple pathogenic factors of sepsis as well as a preparation method and an application thereof are provided. The adsorbing material is formed by coupling a carrier with good mechanical performance and blood compatibility and a ligand with the capacity to adsorb multiple pathogen-associated molecular patterns, and is capable of effectively adsorbing bacterial endotoxin, bacterial genomic DNA, peptidoglycan, lipoteichoic acid, virus RNA, and zymosan from fluids such as blood and the like, and in particular has application value in blood purification for treatment of sepsis.