An apparatus and a method for monitoring a vascular access

Details An apparatus and a method for monitoring a vascular access An apparatus and a method for monitoring a vascular access

A - Human Necessities

61

M

A61M 5/168 (2006.01)

Patent

CA 2717886

An apparatus for monitoring a vascular access comprises a dialysis circuit having a venous needle (18) and a blood pump (14) of a peristaltic type which generates oscillatory perturbations in the circuit. An optical sensor (19), arranged on a patient's body by the venous needle, perceives the perturbations transmitted through the needle and sends a pulsating signal to an analysis device (20), absence of which pulsating signal provides an indication of a detachment of the needle.

L'invention porte sur un appareil pour surveiller un accès vasculaire qui comprend un circuit de dialyse ayant une aiguille veineuse (18) et une pompe de sang (14) d'un type péristaltique qui génère des perturbations oscillatoires dans le circuit. Un détecteur optique (19), disposé dans le corps d'un patient par l'aiguille veineuse, perçoit les perturbations transmises à travers l'aiguille et envoie un signal pulsatile à un dispositif d'analyse (20), dont l'absence de signal pulsatile fournit une indication d'un détachement de l'aiguille.

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