Granted Patent B2

US 12,653,935 · App. 17/642,290 · Granted Jun 16, 2026

Inventors: Winfried Brehm (Hofheim, DE); Philippe Laffay (Sainte Foy les Lyon, FR); Gerhard Wiesen (Bad Homburg, DE)

Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH

A61M1/1668

Abstract

Claims (22)

1 . A container for concentrate, comprising:

a main body for containing concentrate;

a connection portion having a flat end surface and configured to connect the container to a blood treatment device;

two attachment elements arranged at two opposing sides of the connection portion and configured to reversibly attach the container to two corresponding attachment elements present on a blood treatment device;

two connection elements each comprising an opening at the flat end surface of the connection portion and configured to interact with two corresponding connection elements present on a blood treatment device to fluidically couple the container with the blood treatment device by insertion of the connection elements present on the blood treatment device into the connection elements of the container; and

at least one opening element configured to interact with a blood treatment device to open a lid of the container.

2 . The container according to claim 1 , wherein the at least one opening element configured to interact with a blood treatment device to open the lid of the container has the form of a lever that is arranged between the lid and the flat end surface of the connection portion and is movable relative to the flat end surface.

3 . The container according to claim 2 , wherein the lever comprises a curved section.

4 . The container according to claim 1 , wherein the at least one opening element configured to interact with a blood treatment device to open the lid of the container is formed as an attachment portion that is part of the lid and is configured to attach the lid to a blood treatment device, wherein the attachment portion of the lid comprises an opening into that a lid opening element of a blood treatment device can be inserted.

5 . The container according to claim 4 , wherein the container further comprises a hook-shaped attachment element arranged adjacent to the attachment portion of the lid.

6 . The container according to claim 1 , wherein the lid is a flexible film.

7 . A system comprising at least one container according to claim 1 and at least one blood treatment device comprising:

a main body;

at least one attachment element that the two attachment elements of the container for concentrate are configured to attach, wherein the at least one attachment element is movable relative to the main body in a direction projecting essentially at right angles from a side surface of the main body;

at least one connection element configured to fluidically couple the blood treatment device to the container for concentrate; and

a lid opening element configured to interact with the at least one opening element of the container to a open the lid of the container.

8 . A method for opening a lid of the container of claim 4 , during the process of connecting the container to a blood treatment device, the method comprising steps of:

reversibly attaching the container to the blood treatment device by means of the two attachment elements present on the container and at least one attachment element present on the blood treatment device;

inserting a lid opening element of the blood treatment device into the opening of the attachment portion of the lid of the container, thereby affixing the lid to the lid opening element;

moving the container in a direction projecting essentially at right angles to a side surface of a main body of the blood treatment device towards the main body of the blood treatment device, whereby the lid is opened;

moving the container and/or the two connection elements of the blood treatment device in a direction projecting essentially in parallel to a side surface of the main body of the blood treatment device, thereby inserting the two connection elements of the blood treatment device into the two connection elements of the container to fluidically couple the container to the blood treatment device.

9 . The method according to claim 8 , wherein all method steps apart from the step of reversibly attaching the container to the blood treatment device by means of the two attachment elements present on the container and the two attachment elements present on the blood treatment device and/or the step of inserting the lid opening element of the blood treatment device into the opening of the attachment portion of the lid of the container, thereby affixing the lid to the lid opening element are performed automatically.

Priority Claims (2)

Continuity (1)

References Cited (30)