Centrally controlled multi-patient dialysis treatment system and its use

Patent metadata

Field	Value
Publication number	US-12403227-B2
Application number	US-201817261662-A
Country	US
Kind code	B2
Filing date	Jul 20, 2018
Priority date	Jul 20, 2018
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

A centrally controlled multi-patient dialysis treatment system ( 1 ) as disclosed herein comprises: a dialysate preparation unit ( 2 ) configured to prepare a dialysate based on a prescription and control dialysate delivery for dialysis treatments in progress; one or more dialysate modules ( 3 ) configured to deliver the dialysate to a dialyzer ( 4 ) and control an ultrafiltration process; and one or more patient modules ( 5 ) configured to control an extracorporeal blood flow through the dialyzer ( 4 ) for the dialysis treatment, wherein the dialysate preparation unit ( 2 ), the dialysate modules ( 3 ) and the patient modules ( 5 ) are configured to be adapted to be assembled into an integrated dialysis treatment system suitable for one or more patients ( 6 ). Also an use of the centrally controlled multi-patient dialysis treatment system ( 1 ) for one or more patients' dialysis treatments is disclosed herein. For the centrally controlled multi-patient dialysis treatment system, in contrast to the conventional in-center dialysis infrastructures, in addition to cost saving, it is highly space efficient. Moreover, the centrally controlled multi-patient dialysis treatment system is robust and easy to setup.

First claim

The invention claimed is:

1. A centrally controlled multi-patient dialysis treatment system, comprising:
a dialysate preparation unit configured to prepare a dialysate based on a prescription and control dialysate delivery for dialysis treatments in progress;
two or more dialysate modules, each of the two or more dialysate modules configured to deliver the dialysate to a dialyzer and control an ultrafiltration process; and
two or more patient modules, each of the two or more patient modules configured to control a corresponding extracorporeal blood flow through the dialyzer for a corresponding dialysis treatment of the dialysis treatments,
wherein the dialysate preparation unit, the two or more dialysate modules, and the two or more patient modules are configured to be adapted to be assembled into an integrated dialysis treatment system suitable for two or more patients,
wherein the dialysate preparation unit is fluidly connected to the two or more dialysate modules via a dialysate distribution loop that supplies the two or more dialysate modules with the dialysate,
wherein an inlet and an outlet of the dialysate distribution loop are connected to an endotoxin retentive filter (ETRF), and
wherein the dialysate preparation unit is configured as a central station to (i) control dialysate preparation parameters of the centrally controlled multi-patient dialysis treatment system and (ii) monitor a treatment status of the two or more patient modules in the centrally controlled multi-patient dialysis treatment system.

2. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein the dialysate preparation unit is fluidly connected with the two or more dialysate modules, and wherein the dialysate preparation unit comprises any one or more of:
a heating module configured to heat the dialysate up to around 35 degree centigrade;
a deaeration module configured to remove air from treated water;
a concentrate preparation module configured to prepare liquid concentrates from at least one concentrate cartridge in form of powder;
a proportioning unit configured to mix the liquid concentrates with the treated water in a prescribed mixing ratio on demand; and
the ETRF configured to enhance hygiene control.

3. The centrally controlled multi-patient dialysis treatment system according to claim 2 , wherein the heating module further comprises any one or more of:
a heat exchanger configured to exchange heat from waste dialysate in a drain piping to the treated water;
a pre-heater configured to heat the treated water up to around 35 degree centigrade before the treated water enters the deaeration module; and
a flow heater installed at an end of the dialysate distribution loop, and configured to keep the dialysate around 35 degree centigrade.

4. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein the two or more dialysate modules are fluidly communicated with the dialysate distribution loop of the centrally controlled multi-patient dialysis treatment system to distribute the dialysate to the two or more patient modules, each of the two or more dialysate modules comprising at least one of:
a dialysis temperature control module configured to control a dialysate temperature; and
a balancing system configured to control ultrafiltration in the corresponding dialysis treatment with a UF pump, which is further configured to control ultrafiltration volume in the corresponding dialysis treatment.

5. The centrally controlled multi-patient dialysis treatment system according to claim 4 , wherein
a flow path for the extracorporeal blood flow comprises the dialyzer and a tubing set; and/or
the dialysis temperature control module further comprises a dialysate heater disposed ahead of the balancing system, and configured to heat the dialysate to a prescribed treatment temperature and/or for heat disinfection.

6. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein
the dialyzer can be either packaged into the two or more dialysate modules or the two or more patient modules by plugging an inlet port and an outlet port of the dialyzer into respective receptacles or dialysate lines.

7. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein the dialysate preparation unit is configured in a cabinet-shaped form.

8. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein each of the two or more dialysate modules further comprises:
a backflow preventer for preventing backflow contamination toward the dialysate distribution loop of the centrally controlled multi-patient dialysis treatment system.

9. The centrally controlled multi-patient dialysis treatment system according to claim 4 , wherein each of the two or more dialysate modules further comprises:
a pressure regulator for maintaining a stable loading pressure to load fresh dialysate into the balancing system so that power drive generated from the stable loading pressure on a loading side of the balancing system can be utilized to simplify hydraulic design.

10. The centrally controlled multi-patient dialysis treatment system according to claim 4 , wherein each of the two or more dialysate modules is connected detachably to the dialysate distribution loop by a connector.

11. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein each of the two or more patient modules further comprises:
a user interface that includes a touchscreen for controlling or setting up the respective dialysis treatment.

12. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein each of the two or more patient modules is configured to be adapted to be held on a retractable wall mount or a movable stand.

13. The centrally controlled multi-patient dialysis treatment system according to claim 1 , wherein the two or more dialysate modules and the two or more patient modules can be integrated as a bedside machine.

14. The centrally controlled multi-patient dialysis treatment system according to claim 1 , further comprising:
a water treatment unit configured to supply the dialysate preparation unit with treated water.

15. The centrally controlled multi-patient dialysis treatment system according to claim 14 , wherein the water treatment unit can be integrated with the centrally controlled multi-patient dialysis treatment system by means of a connection between the water treatment unit and the dialysate preparation unit.

16. The centrally controlled multi-patient dialysis treatment system according to claim 1 , further comprising:
an additional loop configured to supply the two or more dialysate modules with treated water to enable the two or more dialysate modules to be rinsed and/or disinfected individually.

17. The centrally controlled multi-patient dialysis treatment system according to claim 2 , wherein the dialyzer can be either packaged into the two or more dialysate modules or the two or more patient modules by plugging an inlet port and an outlet port of the dialyzer into respective receptacles or dialysate lines.

Assignees

• Fresenius Medical Care Deutschland Gmbh

Inventors

• Jor Kee

Classifications

• A61M1/1657

  with centralised supply of dialysate or constituent thereof for more than one dialysis unit · CPC title

• A61M2205/84

  for treating several patients simultaneously · CPC title

• A61M2205/502

  User interfaces, e.g. screens or keyboards · CPC title

• A61M1/3413

  Diafiltration · CPC title

• A61M1/1658

  Degasification · CPC title