A hemodialysis or hemo(dia)filtration apparatus and a method...

Details A hemodialysis or hemo(dia)filtration apparatus and a method... A hemodialysis or hemo(dia)filtration apparatus and a method...

A - Human Necessities

61

M

A61M 1/34 (2006.01) A61M 1/16 (2006.01)

Patent

CA 2724060

In a hemodiafiltration apparatus, a control and command unit (11) halts a replacement fluid supply pump (8) and contemporaneously modifies the control mode of a blood pump (1) passing from a control based on the pump velocity to a control based on the blood pressure measured by a sensor (12) arranged downstream of a hemodiafilter (3). The aim is to prevent risks due to excessive hemo-concentration in the blood circuit between the ultra-filtration zone and the infusion zone.

Dans un appareil d'hémodiafiltration, une unité de contrôle et de commande (11) arrête une pompe (8) d'alimentation en fluide de remplacement et modifie simultanément le mode de contrôle d'une pompe sanguine (1) en le faisant passer d'un contrôle basé sur la vitesse de la pompe à un contrôle basé sur la pression du sang mesurée par un détecteur (12) placé en aval d'un hémodiafiltre (3). Le but est de prévenir les risques dus à une hémoconcentration excessive dans le circuit sanguin entre la zone d'ultrafiltration et la zone de transfusion.

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