Patent classifications
A61M1/3441
Apparatus for extracorporeal treatment of blood
An apparatus for extracorporeal treatment of blood including a filtration unit, a blood withdrawal line, a blood return line, an effluent fluid line, a dilution fluid line connected to the blood withdrawal line, and a dialysis fluid line. Pumps act on the fluid lines for regulating the flow of fluid. A control unit sets initial values for a fluid flow rate(s) through the lines and periodically executes a flow rate update procedure to adjust the fluid flow rate(s) to deliver a set dose (Dset) in a reference time interval.
MEDICAL APPARATUS FOR EXTRACORPOREAL TREATMENT OF FLUID AND A PROCESS OF CALCULATING SET FLOW RATES IN A MEDICAL APPARATUS FOR DELIVERY OR COLLECTION OF FLUIDS
An apparatus for extracorporeal treatment of fluid and a process of setting up a medical apparatus for the delivery or collection of fluids are disclosed. According to the apparatus and the process, a control unit (10) is configured calculate set values of two or more of the fluid flow rates by imposing that an emptying time of containers of fresh fluid (16, 20, 21, 26) and/or a filling time of a waste container is substantially same as, or multiple of, the emptying time of one or more of the other containers of fresh fluid.
Blood treatment systems and methods
Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.
Medical apparatus for extracorporeal treatment of fluid and a process of calculating set flow rates in a medical apparatus for delivery or collection of fluids
An apparatus for extracorporeal treatment of fluid and a process of setting up a medical apparatus for the delivery or collection of fluids are disclosed. According to the apparatus and the process, a control unit (10) is configured calculate set values of two or more of the fluid flow rates by imposing that an emptying time of containers of fresh fluid (16, 20, 21, 26) and/or a filling time of a waste container is substantially same as, or multiple of, the emptying time of one or more of the other containers of fresh fluid.
Portable Dialysis Machine with Improved Reservoir Heating System
The specification discloses a portable dialysis machine having a detachable controller unit and base unit with an improved reservoir heating system. The controller unit includes a door having an interior face, a housing with a panel, where the housing and panel define a recessed region configured to receive the interior face of the door, and a manifold receiver fixedly attached to the panel. The base unit has a reservoir with an internal pan and external pan, separated by a space that holds a heating element. The heating element is electrically coupled to electrical contacts attached to the external surface of the external pan.
Systems and methods for increasing convective clearance of undesired particles in a microfluidic device
A microfluidic device for increasing convective clearance of particles from a fluid is provided. In some implementations, described herein the microfluidic device includes multiple layers that each define infusate, blood, and filtrate channels. Each of the channels have a pressure profile. The device can also include one or more pressure control features. The pressure control feature controls a difference between the pressure profiles along a length of the device. For example, the pressure control feature can control the difference between the pressure profile of the filtrate channel and the pressure profile of the blood channel. In some implementations, the pressure control feature controls the pressure difference between two channels such that the difference varies along the length of the channels by less than 50% of the pressure difference between the channels at the channels' inlets.
TECHNIQUES FOR DIALYSIS BASED ON RELATIVE BLOOD VOLUME
Systems, methods, and/or apparatuses may be operative to perform a dialysis process using RBV-based UF control. Embodiments may include methods operative to receive RBV target information comprising population-based dialysis data of real patient outcomes of a patient population associated with the patient, determine an RBV value of a patient during the dialysis process, and determine UF information to control a UF pump of the dialysis device to maintain the RBV value within a target RBV range defined by the RBV target information. Other embodiments are described.
Blood Treatment Device For Carrying Out An Extracorporeal Blood Treatment, Blood-Guiding Device, Blood Treatment System
The invention relates to a blood treatment device for carrying out an extracorporeal blood treatment in which blood is guided in a blood guidance device having a main blood line and at least one secondary line, the latter being fluidically connected to the main blood line and the main blood line having a dialyzer and, downstream from the dialyzer, a blood treatment element, wherein the blood treatment device has a control device; and a pump configuration, which is equipped for generating blood flows in the main blood line and also in the at least one secondary line, wherein the control device is designed to operate the pump configuration in such a way that a first blood flow rate in the dialyzer is decoupled from a second blood flow rate in the blood treatment element. Furthermore, the invention relates to a blood guidance device for cooperation with the blood treatment device as well as for a blood treatment system.
System For Extracorporeal Blood Treatment, Treatment Apparatus, Kit And Method For Operating A System For Extracorporeal Blood Treatment
The present invention relates to a system (100) for extracorporeal blood treatment comprising a first inlet (1) for introducing a bloodstream to be treated into the system (100), three blood treatment apparatus (A, D, G), as well as an outlet (2) for discharging a treated bloodstream from the system (100), wherein the system comprises an adsorber apparatus (A) and/or a plasma separator apparatus, a dialysis apparatus (D) and a gas exchange apparatus (G), and wherein the three blood treatment apparatus (A, D, G) are sequentially connected in series in a functional state of system (100) application between the inlet (1) and the outlet (2) of the system relative to a direction of blood flow of a bloodstream to be treated and can be consecutively perfused extracorporeally by a bloodstream to be treated. The present invention further relates to a treatment apparatus comprising such a system, a kit comprising the components of such a system, a method for operating such a system (100) as well as a method for extracorporeal blood treatment with such a system (100).
Apparatus for extra-corporeal blood treatment and method of presetting an initial mode of treatment for an extra-corporeal blood treatment apparatus
An apparatus for extra-corporeal blood treatment and a method of presetting an initial mode of treatment in the opening phase of an extra-corporeal blood treatment are controlled based on the opening phase of a haemodiafiltration, in which particularly fast removal of electrolytes such as potassium or of urea occurs. The apparatus has a control and computing unit for presetting an initial mode of treatment, in which over a preset interval of time, substituate is fed to the extra-corporeal blood circuit, dialysis fluid is not fed through the dialyser and instead only ultrafiltrate is withdrawn from the dialyser and, on expiry of the preset interval of time, dialysis fluid is fed through the dialyser. Alternatively, dialysis fluid is provided during the preset interval of time through the dialyser at a dialysis fluid flow rate that is smaller than the dialysis fluid flow rate after the preset interval of time has elapsed.