Systems and methods for extended volume range ventilation

Details Systems and methods for extended volume range ventilation Systems and methods for extended volume range ventilation

A - Human Necessities

61

M

A61M 16/00 (2006.01) A61M 16/12 (2006.01) B01F 3/02 (2006.01)

Patent

CA 2714115

Various embodiments of the present invention provide systems, methods and devices for delivering a defined gas mixture to a recipient. For example, various embodiments of the present invention provide ventilators that include at least two gas sources (110a, 110b, 110c), a gas outlet (180) and a differential flow transfer element (130). The differential flow transfer element receives one component gas from one of the gas sources at a first flow rate, and another component gas from the other gas source at a second flow rate. The differential flow transfer element distributes a mixture that includes at least the aforementioned component gases at a third flow rate via the gas outlet. The third flow rate is less than the sum of the first flow rate and the second flow rate.

La présente invention concerne, selon divers modes de réalisation, des systèmes, des procédés et des dispositifs pour la délivrance dun mélange gazeux défini à un receveur. Par exemple, divers modes de réalisation de la présente invention concernent des ventilateurs qui incluent au moins deux sources de gaz (110a, 110b, 110c), une sortie de gaz (180) et un élément de transfert de flux différentiel (130). Lélément de transfert de flux différentiel reçoit un composant gazeux dune des sources de gaz à un premier débit, et un autre composant gazeux de lautre source de gaz à un deuxième débit. Lélément de transfert de flux différentiel distribue un mélange qui inclut au moins les composants gazeux susmentionnés à un troisième débit via la sortie de gaz. Le troisième débit est inférieur à la somme du premier débit et du deuxième débit.

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