Concentrate container for an extracorporeal blood treatment machine and a concentrate supply system for an extracorporeal blood treatment machine

Patent metadata

Field	Value
Publication number	US-10449287-B2
Application number	US-201514966072-A
Country	US
Kind code	B2
Filing date	Dec 11, 2015
Priority date	Dec 18, 2014
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A concentrate container for an extracorporeal blood treatment machine with a fluid inlet at a first end of the concentrate container and a fluid outlet at a second end of the concentrate container as well as at least one connector to hold a coupling fitting of a fluid conduit, wherein at least one connector is concave in shape and is positioned inside the container. A system for use with this concentrate container, in which the coupling fittings are convex in shape. A connection piece provides for disinfection of the system.

First claim

The invention claimed is:

1. A cartridge-shaped concentrate container for an extracorporeal blood treatment machine having at least one fluid conduit, comprising:
a receptacle having a first axial end and a second axial end;
a fluid inlet on the first axial end of the receptacle; and
a fluid outlet on the second axial end of the receptacle;
wherein at least one of the fluid inlet or the fluid outlet comprises a concave connector located inside the cartridge-shaped concentrate container, wherein the concave connector is configured to couple with a corresponding fluid conduit of the extracorporeal blood treatment machine, the concave connector protruding at least partially into the receptacle,
the cartridge-shaped concentrate container further comprising a fluid ducting device positioned downstream of fluid flow from the connector,
wherein the fluid ducting device comprises structures for the selective deflection of the flowing fluid, and
wherein the connector and the fluid ducting device form a single, integral component.

2. The cartridge-shaped concentrate container of claim 1 , wherein the concave connector protrudes completely into the receptacle with partial external axial overhang.

3. The cartridge-shaped concentrate container of claim 1 , wherein the concave connector protrudes partially into the receptacle without any external axial overhang.

4. The cartridge-shaped concentrate container of claim 1 , wherein the second axial end of the receptacle is configured in the shape of a spherical shell segment or a truncated cone.

5. The cartridge-shaped concentrate container of claim 1 , wherein the fluid ducting device is an impact disc against which fluid flowing into the receptacle impacts, whereby the fluid is spread in a radially even manner onto a concentrate deposited in the concentrate container.

6. The cartridge-shaped concentrate container of claim 1 , wherein the fluid ducting device is pivoted by means of a turbine-like impeller wheel.

7. The cartridge-shaped concentrate container of claim 1 , wherein the fluid ducting device is configured as a sieve.

8. A conduit system for an extracorporeal blood treatment machine for producing a flow agent, comprising:
the cartridge-shaped concentrate container of claim 1 ; and
at least one inlet coupling fitting to form a fluid connection between the cartridge-shaped concentrate container and a fluid inlet conduit of the conduit system; and
at least one outlet coupling fitting to form a fluid connection between the cartridge-shaped concentrate container and a fluid outlet conduit of the conduit system;
wherein at least one of the coupling fittings is convex in shape and is configured to engage with a corresponding concave connector positioned inside the receptacle of the cartridge-shaped concentrate container.

9. The conduit system of claim 8 , wherein the fluid ducting device comprises structures for the selective deflection of the flowing fluid.

10. The conduit system of claim 9 , wherein the fluid ducting device is an impact disc against which fluid flowing into the receptacle impacts, whereby the fluid is spread in a radially even manner onto the concentrate deposited in the concentrate container.

11. The cartridge-shaped concentrate container of claim 1 , wherein the fluid inlet is sealed with a membrane, and the fluid ducting device is separated from the membrane at a position downstream of the membrane.

Assignees

• Braun Avitum Ag

Inventors

• Ritter Kai-Uwe

Classifications

• A61M2206/16

  Rotating swirling helical flow, e.g. by tangential inflows · CPC title

• A61M1/1668 Primary

  Details of containers · CPC title

• A61M39/12

  for joining a flexible tube to a rigid attachment · CPC title

• A61M1/3661

  for haemodialysis · CPC title

• A61M2039/1027

  Quick-acting type connectors · CPC title