TUBE ROLLER PUMP

A peristaltic pump for extracorporeal blood treatment includes a pump housing in which a rotor is rotatable about a rotor axis. The rotor has at least two squeeze elements offset in a circumferential direction to each other. The pump housing has a support surface extending arc-shaped about the rotor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Jakobi, Marco
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HEATING HUMAN NECESSITIES HYGIENE LIGHTING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	A peristaltic pump for extracorporeal blood treatment includes a pump housing in which a rotor is rotatable about a rotor axis. The rotor has at least two squeeze elements offset in a circumferential direction to each other. The pump housing has a support surface extending arc-shaped about the rotor axis and spaced radially from the rotor. The support surface is configured to support a tube segment which is radially insertable between the rotor and the support surface. In order to extend the service life of the pump and reduce fluctuations in the pump volume, the pump has co-rotating guide surfaces arranged and configured adjacent to both sides of the squeeze element in the circumferential direction in such a way that they each form a circular segment-like guiding passage with the support surface, in which the tube segment can be fixed radially with a predetermined clearance fit.