Peristaltic pump tube

F - Mech Eng,Light,Heat,Weapons – 04 – B

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F04B 43/00 (2006.01)

Patent

CA 2577814

A tube for a peristaltic pump comprises an elastically deformable tubular body (2) made from a PVC composition containing: 100 phr of a PVC resin having a K value, measured according to standard ISO 1628-2, of not less than 85, from 40 to 100 phr of DEHA plasticizer, from 0.05 to 1.0 phr of lubricant, from 0.3 to 15.0 phr of stabilizer and co-stabilizer. The deformable tube, which is usefully employed for liquid transport in a dialysis apparatus, enables a high level of fluid transport efficiency to be maintained, even after many hours of peristaltic pump operation.

Un tube de pompe péristaltique comprend un corps (2) tubulaire élastiquement déformable fabriqué dans une composition de PVC contenant: 100 phr d'une résine PVC possédant une valeur K, mesurée conformément à la norme ISO 1628-2, qui n'est pas inférieure à 85, de 40 à 100 phr de plastifiant DEHA, de 0,0 5 à 1,0 phr de lubrifiant, de 0,3 à 15,0 phr de stabilisant et de co-stabilisant. Ce tube déformable, qui est habituellement utilisé pour transporter un liquide dans un appareil de dialyse, permet de transporter un liquide en maintenaient une haute efficacité, même après de nombreuses heures de fonctionnement de pompe péristaltique.

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