Mechanical ventilator

A - Human Necessities – 61 – M

Patent

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Details

A61M 16/00 (2006.01)

Patent

CA 2201044

A mechanical ventilator for ventilating a patient employs an air displacement member mounted for oscillating motion in a chamber; preferably the chamber is semi-cylindrical and the air displacement member is a vane mounted for oscillating movement about an axis of rotation such that a free outer edge surface of the vane is maintained in closely spaced apart relationship with the interior wall of the chamber throughout the oscillating; the ventilator permits significant variation in the ventilation flow waveform.

Un ventilateur mécanique servant à ventiler un patient comporte un élément qui déplace l'air fixé de manière à effectuer un mouvement oscillatoire dans une chambre; la chambre est de préférence semi-cylindrique et l'élément qui déplace l'air est une ailette fixée de façon à effectuer un mouvement oscillatoire autour d'un axe de rotation, de sorte que la surface libre du rebord extérieur de l'ailette soit maintenue dans une relation rapprochée/éloignée avec la paroi intérieure de la chambre pendant tout le mouvement d'oscillation; le ventilateur permet une variation importante dans la forme d'onde du débit ventilatoire.

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