Roller Pump

• US 20070286756A1
• Filed: 05/12/2005
• Published: 12/13/2007
• Est. Priority Date: 05/14/2004
• Status: Active Grant

• Current Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius Medical Care AG)
• Original Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius Medical Care AG)
• Inventors: Schneider, Jochen, Caronna, Marco, Wamsiedler, Ralf, Neubauer, Herbert, Lauer, Martin, Spengler, Gerhard, Biesel, Wolfgang, Reiter, Reinhold, Baumann, Manfred, Busse, Christian, Hugel, Elmar, Apel, Jorn, Jones, Jorg, Nurnberger, Thomas, Berthold, Breitkopf
• Granted Patent: US 7,758,324 B2
• Time in Patent Office: Days
• US Class Current: 417/477.900
• CPC Class Codes: F04B 43/1253 by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing

Abstract

The invention relates to a roller pump consisting of a stator with a pump bed formed therein and a rotor for acting on a hose inserted into the pump bed in arcuate form. In accordance with the invention, the ends of the tube guided out of the pump bed cross.

Claims

1. :

A roller pump consisting of a stator with a pump bed formed therein and a rotor for acting on a hose inserted into the pump bed in arcuate form, characterized in that the ends of the hose guided out of the pump bed cross.

2. :

A roller pump in accordance with claim 1, characterized in that the hose can be fixed in the roller pump by a connector.

3. :

A roller pump in accordance with claim 2, characterized in that the connector is made as an adapter.

4. :

A roller pump in accordance with claim 2, characterized in that a hose piece insertable into the pump bed as well as the infeeding and outgoing hose are connected to the adapter.

5. :

A roller pump in accordance with claim 2, characterized in that its housing has two clip receivers at the side, preferably of different shape, for a clipable connector matched to it in its shape.

6. :

A roller pump in accordance with claim 5, characterized in that one clip receiver is made in the form of a round arc and the other is made in an angled manner.

7. :

A roller pump in accordance with claim 5, characterized in that the clip receivers each have nose-like projections at their upper end.

8. :

A roller pump in accordance with claim 1, characterized in that a pin for the ejection of the connector is arranged in the housing.

9. :

A roller pump in accordance with claim 1, characterized in that a device, preferably a pimple, is arranged at the connector and cooperates with a sensor integrated in the roller pump.

10. :

A roller pump in accordance with claim 2, characterized in that the connector consists of a soft plastic, preferably a soft PVC.

11. :

A roller pump in accordance with claim 2, characterized in that the connector is arranged laterally at the pump bed with a horizontal alignment of the rotor axle.

12. :

A roller pump in accordance with claim 11, characterized in that it has a control unit which sets the direction of rotation of the rotor clockwise with an opening of the pump bed on the left side and counterclockwise with an opening on the right side.

13. :

A roller pump in accordance with claim 1, characterized in that the connector is made as an integrated cassette.

14. :

A roller pump in accordance with claim 1, characterized in that hose segments of different diameter can be inserted in the connector, with a transition region being arranged between the hose segments within the connector which provides a constant transition between two connectors of different inner diameter.

15. :

A roller pump in accordance with claim 1, characterized in that the lines continuing the hose segments cross at right angles in the connector.

16. :

A connector for a roller pump in accordance with claim 1.

17. :

A hose set having a connector in accordance with claim 16 as well as hose segments to be inserted into the pump bed and connected to the connector.

18. :

A hose set in accordance with claim 17, characterized in that the connector and the hose segments are connected to one another in a firmly bonded manner, i.e. preferably adhesively bonded or welded.