An apparatus for extracorporeal blood treatment, comprising a treatment unit (2) having a first chamber (3) and a second chamber (4) separated from one another by a semipermeable membrane (5), a blood removal line (6) connected in inlet with the first chamber (3) and a blood return line (7) connected in outlet with the first chamber; an infusion line (9;9a, 9b) of a replacement fluid and a fluid evacuation line (10) connected in outlet from the second chamber. A regulating device (20) of a transmembrane pressure is active on at least one of the lines and a control unit (15) is configured to: command the regulating device (20) by setting a first increase (TMP.sub.1), determine a value of a control parameter (.sub.1) corresponding to the first increase, compare the value of the control parameter (.sub.1) with a reference value (.sub.ref) and, if the value of the control parameter is greater than the reference value, command the regulating device (20) by setting a second increase (TMP.sub.2) which is greater than the first increase (TMP.sub.1).

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

A method of identifying a type of a filter, which has at least one retentate side and at least one permeate side separated from one another by at least one filter medium, includes generating a pressure in a fluid, in particular in a liquid, on the retentate side or on the permeate side via a pressure source. The method then includes switching off the pressure source, and measuring a pressure development in the fluid over time subsequent to the switching off of the pressure source.

Systems and methods for cleaning and disinfecting a medical therapy device that delivers any one of hemodialysis, hemodiafiltration and hemofiltration. The system has a base module that has at least one segment of a controlled compliant flow path and at least one pair of jumpered ports configured on the base module. One or more components have connections connectable to the jumpered ports of the base module to provide for fluid communication between the segment of the controlled compliant flow path in the base module and a flow path defined by the one or more components. The base module is connected to the one or more components that define a flow path configurable for carrying out in part at least one function performed during any one of hemodialysis, hemodiafiltration or hemofiltration.

A filter device (10) for filtration of fluids, in particular for the dialysis of blood. The filter device (10) comprises a housing (12) having a first end (14) and a second end (16) and defining a fluid chamber (18) extending between the first end (14) and the second end (16). The filter device (10) further comprises a first lid (20) provided at the first end (14) of the housing (12) and comprising a first fluid port (22), a first compartment (24), a second compartment (26) and a first internal separating wall (28) separating the first compartment (24) from the second compartment (26). The filter device (10) further comprises a second lid (30) provided at the second end (16) of the housing (12) and comprising a second fluid port (32), a third fluid port (33), a third compartment (34), a fourth compartment (36) and a second internal separating wall (38) separating the third compartment (34) from the fourth compartment (36). The filter device (10) further comprises a plurality of hollow fibers (40) arranged within the housing (12), wherein each of the plurality of hollow fibers (40) comprises a semi-permeable membrane and defines a fluid channel extending longitudinally through an interior of the respective hollow fiber (40). The filter device (10) further comprises a first sealing means (42) which separates the fluid chamber (18) from the first and the second compartment (24, 26), the first sealing means (42) having a first longitudinal end facing away from the second lid (30). The filter device (10) further comprises a second sealing means (46) which separates the fluid chamber (18) from the third and the fourth compartment (34, 36), the second sealing means (46) having a second longitudinal end facing away from the first lid (20). Still further, the filter device (10) comprises a fourth fluid port (50) and a fifth fluid port (52) both provided at the fluid chamber (18) and located between the first longitudinal end of the first sealing means (42) and the second longitudinal end of the second sealing means (46).

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.

An apparatus for extracorporeal treatment of blood comprising a filtration unit, a blood withdrawal line, a blood return line, an effluent fluid line, a pre and/or post-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 is configured to set initial values to one or more fluid flow rates through the above lines and to periodically execute a flow rate update procedure in order to deliver a set dose (D.sub.set) in a reference time interval.

A method and apparatus are provided for a hemodiafiltration delivery module that is used in conjunction with a UF controlled dialysis machine to enable hemodiafiltration therapy to be performed. The advantage is that one can fully utilize a current functioning dialysis machine to perform a hemodiafiltration therapy as opposed to purchasing a completely new machine that offers this capability.