Pince péristaltique de sécurité

Peristaltic security clamp

Peristaltische Sicherheitsklemme

Abstract

The clamp consists of a cam (2) which can turn inside a frame (1) in order to clamp a flexible tube (10) against one edge (9) of the frame. The cam is driven in rotation by a motor (5) and a reducing gear (4) having high moment of inertia. A set of Hall probes (6) detects the position of the cam and controls the operation of the motor. Application to portable appliances for automatically taking blood. <IMAGE>
La pince est constituée d'une came (2) pouvant tourner à l'intérieur d'un bâti (1) pour pincer un tube souple (10) contre une bordure (9) du bâti. La came est entrainée en rotation par un moteur (5) et un réducteur (4) à moment d'inertie élevé. Un jeu de capteurs (6) à effet Hall détecte la position de la came et commande le fonctionnement du moteur. Application aux appareils portables de prélèvement automatique de sang.

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Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    EP-0115276-A2August 08, 1984Siemens Elema AB, Siemens AktiengesellschaftFluid flow control device
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NO-Patent Citations (0)

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    DE-19900320-C1July 06, 2000Fresenius Medical Care De GmbhSafety valve for a flexible hose conduit, in particular, the venous blood conduit of a hemodialysis unit comprises bearing surfaces opposite to the blocking elements so that the hose can be blocked by either blocking element
    EP-1101503-A3December 11, 2002Baxter International Inc.Volumetric infusion pump drive apparatus