Flow indicators for ambulatory infusion

A - Human Necessities – 61 – M

Patent

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Details

A61M 1/00 (2006.01) A61M 5/14 (2006.01)

Patent

CA 2286792

This invention discloses an intravenous infusion flow indicator including a housing (10) defining an infusion liquid inlet (16), an infusion liquid outlet (18), a hydrophilic membrane (20) disposed in the housing (10) and being operative when wetted for permitting liquid flow, and preventing airflow therethrough to the liquid outlet (18). The liquid flow may be observed as droplets, the housing defining at least one volume (25) whose size and configuration are selected such that irrespective of the orientation of the housing following priming, infusion liquid within the housing is always in touch relationship with the membrane (20) thereby permitting continued infusion liquid flow therethrough.

L'invention concerne un débitmètre pour perfusion intraveineuse, comprenant un boîtier (10), qui définit un orifice d'entrée du liquide de perfusion (16) et un orifice de sortie du liquide de perfusion (18), ainsi qu'une membrane hydrophile (20) disposée dans ledit boîtier (10), qui, quand elle est mouillée, laisse passer le liquide et empêche l'air d'arriver jusqu'à l'orifice de sortie du liquide (18). Le flux de liquide peut être observé sous forme de gouttelettes. Le boîtier définit au moins un volume (25) dont la taille et la configuration sont choisies de façon que, quelle que soit l'orientation dudit boîtier après l'amorçage, le liquide de perfusion qu'il contient soit toujours en contact avec la membrane (20) et traverse ainsi cette dernière de manière continue.

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