Proportional pressure assist ventilation controlled by a...

Details Proportional pressure assist ventilation controlled by a... Proportional pressure assist ventilation controlled by a...

A - Human Necessities

61

M

A61M 16/00 (2006.01) A61B 5/0488 (2006.01) A61B 5/0492 (2006.01)

Patent

CA 2336940

A closed loop system uses (a) the intensity of the diaphragm electromyogram (EMG) for a given inspiratory volume; (b) the inspiratory volume for a given EMG intensity; or (c) a combination of (a) and (b); in view of controlling the level of gas flow, gas volume or gas pressure delivered by a mechanical (lung) ventilator. The closed loop ventilator system enables for automatic or manual adjustment of the level of inspiratory support in proportion to changes in the neuro-ventilatory efficiency such that the neural drive remains stable at a desired target level. An alarm can also be used to detect changes in neuroventilatory efficiency in view of performing manual adjustments.

Un système en boucle fermée utilise (a) l'intensité de l'électromyogramme à membrane pour un volume inspiratoire donné; (b) le volume inspiratoire pour une intensité donnée de l'électromyogramme à membrane; ou (c) une combinaison de (a) et (b) pour commander le niveau d'écoulement des gaz, le volume des gaz ou la pression des gaz fournie par un ventilateur pulmonaire mécanique. Ce système de ventilateur en boucle fermée assure le réglage automatique ou manuel du niveau de support d'inspiration proportionnellement aux changements de l'efficacité neuro-ventilatoire de telle sorte que l'entraînement neural reste stable à un niveau de cible requis. Une alarme peut également être utilisée pour détecter les changements d'efficacité neuro-ventilatoire et effectuer alors des réglages manuels.

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