Dialysis machine and arrangement and method for heating a dialysis solution

Patent metadata

Field	Value
Publication number	US-12076473-B2
Application number	US-201816636049-A
Country	US
Kind code	B2
Filing date	Aug 3, 2018
Priority date	Aug 4, 2017
Publication date	Sep 3, 2024
Grant date	Sep 3, 2024

Abstract

A dialysis machine, in particular a peritoneal dialysis machine, has a heating device for heating a container containing a dialysis solution, in particular a peritoneal dialysis solution. The heating device is configured such that the heating of the dialysis solution by the heating device takes place non-uniformly at points.

First claim

What is claimed is:

1. A dialysis machine comprising:
an assembly including a positionable container containing a dialysis solution that is to be heated and a heating device for heating the container, the heating device including a plurality of regions and a control unit, and the container being positioned in an asymmetrical arrangement relative to the heating device; and
a receiver for receiving the container, with at least one of the heating device and the receiver being inclined with respect to the horizontal,
the control unit being configured to operate the plurality of regions of the heating device at different levels of power so as to transfer different quantities of heat,
such that the heating of the dialysis solution by the heating device takes place non-uniformly at points throughout the dialysis solution so as to provide a temporary temperature gradient in the dialysis solution.

2. The dialysis machine in accordance with claim 1 , wherein the heating device is arranged at the receiver and is distributed non-uniformly over the receiver.

3. The dialysis machine in accordance with claim 1 , wherein the heating device that provides the temporary temperature gradient effects convective flow of the dialysis solution within the container, which provides for intermixing of the non-uniformly heated points throughout the dialysis solution.

4. The dialysis machine in accordance with claim 1 , wherein the control unit is configured to operate the plurality of regions of the heating device with a time offset.

5. The dialysis machine in accordance with claim 1 , further comprising one or more temperature sensors that detect the temperature of the heating device and/or the temperature of the receiver for the container and/or the temperature of the container itself, the control unit being configurable to operate the heating device in dependence on the value or values measured.

6. The dialysis machine according to claim 1 , wherein the dialysis machine is a peritoneal dialysis machine.

7. The dialysis machine according to claim 1 , wherein the dialysis solution is a peritoneal dialysis solution.

8. The dialysis machine according to claim 1 , wherein the container is arranged in the receiver such that a portion of the container other than an overhanging portion of the container projects over the heating device.

9. The dialysis machine according to claim 1 , wherein the heating device that provides the temporary temperature gradient effects convective flow of the dialysis solution within the container, which provides for homogenization of a concentration of substances dissolved in the dialysis solution.

Assignees

• Fresenius Medical Care Deutschland Gmbh

Inventors

• Priessnitz Bernd
• Wabel Peter
• Hassler Manuel
• Wolf Klaus

Classifications

• A61M2205/3626

  by controlled mixing of fluids at different temperatures · CPC title

• A61M2205/3368

  Temperature · CPC title

• A61M1/1664

  with temperature control · CPC title

• B01F33/12

  Mixers in which the mixing of the components is achieved by natural convection · CPC title

• A61M1/166

  Heating (for sterilisation A61M1/1686) · CPC title