Apparatus for extracorporeal blood treatment

An apparatus for extracorporeal blood treatment comprising:

• a filtration unit having a primary chamber and a secondary chamber separated by a semi-permeable membrane;
• a blood circuit comprising at least:
• a blood withdrawal line extending between a first end connected to an inlet of the primary chamber and a second end for connection to a patient;
• and
• a blood return line extending between a first end connected to an outlet of the primary chamber and a second end for connection to said patient;
• a fluid circuit comprising at least:
• one or more water inlet ducts for receiving water;
• a dialysis preparation assembly comprising one or more concentrated sources housing a respective concentrate solution and configured to prepare a mixed solution of a dialysis fluid, at least one of said one or more water inlet ducts to provide water to the dialysis preparation assembly for preparing said mixed solution of dialysis fluid;
• and
• an infusion preparation assembly, separate and distinct from the dialysis preparation assembly, comprising one or more concentrated sources housing a respective concentrate solution and configured to prepare a mixed solution of an infusion fluid, at least one of said one or more water inlet ducts to provide water to the infusion preparation assembly for preparing said mixed solution of infusion fluid,
• intercepting elements arranged and operative at least on the fluid circuit and configured to move between a closed position, wherein a fluid passage is interdicted, and an open position wherein fluid passage is allowed;
• a control unit configured to control one or more of said intercepting elements between the closed position and the open position to determine a fluid flow configuration defining different fluid paths, said fluid flow configuration comprising a main operative mode wherein:
• at least one of said one or more water inlet ducts is configured to provide water to the dialysis preparation assembly for preparing said mixed solution of dialysis fluid and the mixed solution of dialysis fluid is suppliable to an inlet of the secondary chamber of the filtration unit, and
• at least one of said one or more water inlet ducts is configured to provide water to the infusion preparation assembly for preparing said mixed solution of infusion fluid and the mixed solution of infusion fluid is infusible through an infusion access point into the blood circuit,
• wherein said fluid flow configuration further comprises a second operative mode wherein:
• the mixed solution of infusion fluid and the mixed solution of dialysis fluid are mixed to create an auxiliary mixed solution of dialysis fluid flowing in a supply line, and
• the auxiliary mixed solution of dialysis fluid is suppliable to the inlet of the secondary chamber of the filtration unit and/or is infusible into the blood circuit, and
• wherein in said second operative mode, the dialysis preparation assembly is fluidly connected in series, upstream or downstream, with respect to the infusion preparation assembly, and a first preparation line is fluidly connected in series with respect to a second preparation line.

An apparatus for extracorporeal blood treatment comprising:

• a filtration unit having a primary chamber and a secondary chamber separated by a semi-permeable membrane;
• a blood circuit comprising at least:
• a blood withdrawal line extending between a first end connected to an inlet of the primary chamber and a second end for connection to a patient, and
• a blood return line extending between a first end connected to an outlet of the primary chamber and a second end for connection to said patient;
• a fluid circuit comprising at least:
• one or more water inlet ducts for receiving water,
• a dialysis preparation assembly comprising one or more concentrated sources housing a respective concentrate solution and configured to prepare a mixed solution of a dialysis fluid, at least one of said one or more water inlet ducts to provide water to the dialysis preparation assembly for preparing said mixed solution of dialysis fluid, and
• an infusion preparation assembly, separate and distinct from the dialysis preparation assembly, comprising one or more concentrated sources housing a respective concentrate solution and configured to prepare a mixed solution of an infusion fluid, at least one of said one or more water inlet ducts to provide water to the infusion preparation assembly for preparing said mixed solution of infusion fluid;
• intercepting elements arranged and operative at least on the fluid circuit and configured to move between a closed position, wherein a fluid passage is interdicted, and an open position wherein fluid passage is allowed;
• and
• a control unit configured to control one or more of said intercepting elements between the closed and open position to determine a fluid flow configuration defining different fluid paths, said fluid flow configuration comprising a main operative mode wherein:
• at least one of said one or more water inlet ducts is configured to provide water to the dialysis preparation assembly for preparing said mixed solution of dialysis fluid and the mixed solution of dialysis fluid is suppliable to an inlet of the secondary chamber of the filtration unit, and
• at least one of said one or more water inlet ducts is configured to provide water to the infusion preparation assembly for preparing said mixed solution of infusion fluid and the mixed solution of infusion fluid is infusible through an infusion access point into the blood circuit,
• wherein said one or more water inlet ducts branches into a water line to feed water directly to the infusion preparation assembly and into a water branch to feed water directly to the dialysis preparation assembly, wherein intercepting elements comprises one or more valves to allow or prevent water from flowing in the water line and/or in the water branch.

An apparatus for extracorporeal blood treatment comprising:

• a filtration unit having a primary chamber and a secondary chamber separated by a semi-permeable membrane;
• a blood circuit comprising at least:
• a blood withdrawal line extending between a first end connected to an inlet of the primary chamber and a second end for connection to a patient, and
• a blood return line extending between a first end connected to an outlet of the primary chamber and a second end for connection to said patient;
• a fluid circuit comprising at least:
• one or more water inlet ducts for receiving water,
• a dialysis preparation assembly comprising one or more concentrated sources housing a respective concentrate solution and configured to prepare a mixed solution of a dialysis fluid, at least one of said one or more water inlet ducts to provide water to the dialysis preparation assembly for preparing said mixed solution of dialysis fluid, and
• an infusion preparation assembly, separate and distinct from the dialysis preparation assembly, comprising one or more concentrated sources housing a respective concentrate solution and configured to prepare a mixed solution of an infusion fluid, at least one of said one or more water inlet ducts to provide water to the infusion preparation assembly for preparing said mixed solution of infusion fluid;
• intercepting elements arranged and operative at least on the fluid circuit and configured to move between a closed position, wherein a fluid passage is interdicted, and an open position wherein fluid passage is allowed;
• and
• a control unit configured to control one or more of said intercepting elements between the closed position and the open position to determine a fluid flow configuration defining different fluid paths, said fluid flow configuration comprising a main operative mode wherein:
• at least one of said one or more water inlet ducts is configured to provide water to the dialysis preparation assembly for preparing said mixed solution of dialysis fluid and the mixed solution of dialysis fluid is suppliable to an inlet of the secondary chamber of the filtration unit, and
• at least one of said one or more water inlet ducts is configured to provide water to the infusion preparation assembly for preparing said mixed solution of infusion fluid and the mixed solution of infusion fluid is infusible through an infusion access point into the blood circuit,
• wherein said fluid flow configuration comprises at least a second operative mode, and
• wherein the control unit is configured to control the intercepting elements to mix the mixed solution of dialysis fluid with the mixed solution of infusion fluid defining an auxiliary mixed solution of dialysis fluid.