Mascarillas para oxigenoterapia de alto flujo: ¿Son realmente Venturi?

dc.contributor.authorFajardo Campoverdi, Aurio
dc.contributor.authorAdasme Jeria, Rodrigo
dc.contributor.authorMaturana Quinones, Michael
dc.contributor.authorRoncalli Rocha, Angelo
dc.contributor.authorCristancho Gomez, William
dc.date.accessioned2024-11-15T16:18:13Z
dc.date.available2024-11-15T16:18:13Z
dc.date.issued2022
dc.descriptionIndexación: Scopus.
dc.description.abstractOxygen therapy is the mainstay for the treatment of hypoxia. The use of devices capable of satisfying the necessary flow demanded by the patient also offers stable and predictable oxygen concentrations, which is why they are currently considered a reliable and safe therapeutic tool. The physical mechanism for the operation of these devices is based on a modification of Bernoulli's principle. The supply of a constant flow of oxygen, when its pressure drops, increases its velocity and consequently allows the incorporation of ambient air into the system. However, in order to be granted the Venturi designation, structural requirements in geometrical, physical and thermodynamic terms must be met. The ISO standard specifies a Venturi tube by three fundamental parts: a contraction zone (inlet of a continuous flow of a gas), a constriction zone (smaller in radius than the contraction zone, so as to increase the fluid velocity) and a diffusion zone (outlet of a gas mixture with ambient air). In conclusion, the designation of Venturi to high-flow oxygen therapy masks is at least questionable. © 2022 Sociedad de Anestesiologia de Chile. All rights reserved.
dc.description.urihttps://revistachilenadeanestesia.cl/revchilanestv5104021724/
dc.identifier.citationRevista Chilena de Anestesia, Volume 51, Issue 2, Pages 175 - 183, 2022
dc.identifier.doi10.25237/revchilanestv5104021724
dc.identifier.issn0716-4076
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/62025
dc.language.isoes
dc.publisherSociedad de Anestesiologia de Chile
dc.rights.licenseAttribution-NonCommercial 4.0 International CC BY-NC 4.0 Deed
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectBernoulli
dc.subjectHigh flow
dc.subjectHypoxia
dc.subjectOxygen therapy
dc.subjectVenturi
dc.titleMascarillas para oxigenoterapia de alto flujo: ¿Son realmente Venturi?
dc.title.alternativeHigh-flow oxygen therapy masks: Are they really Venturi?
dc.typeArtículo
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