Nebulizers and spacers for aerosol delivery through adult nasal cannula at low oxygen flow rate: An in-vitro study

2017 ◽  
Vol 39 ◽  
pp. 260-265 ◽  
Author(s):  
Yasmin M. Madney ◽  
Maha Fathy ◽  
Ahmed A. Elberry ◽  
Hoda Rabea ◽  
Mohamed E.A. Abdelrahim
Keyword(s):  
Flow Rate ◽  
In Vitro Study ◽  
Oxygen Flow Rate ◽  
Nasal Cannula ◽  
Vitro Study ◽  
Oxygen Flow ◽  
Aerosol Delivery ◽  
Low Oxygen

Noise Levels of Neonatal High-Flow Nasal Cannula Devices - An in-vitro Study

Neonatology ◽  
2013 ◽  
Vol 103 (4) ◽  
pp. 264-267 ◽  
Author(s):  
Kai König ◽  
Ellen L. Stock ◽  
Melanie Jarvis
Keyword(s):  
In Vitro Study ◽  
High Flow ◽  
Nasal Cannula ◽  
Vitro Study ◽  
Noise Levels ◽  
High Flow Nasal Cannula

Effects of Annular Size, Transmitral Pressure, and Mitral Flow Rate on the Edge-To-Edge Repair: An In Vitro Study

2006 ◽  
Vol 82 (4) ◽  
pp. 1362-1368 ◽  
Author(s):  
Jorge H. Jimenez ◽  
Joseph Forbess ◽  
Laura R. Croft ◽  
Lisa Small ◽  
Zhaoming He ◽  
...  
Keyword(s):  
Flow Rate ◽  
In Vitro Study ◽  
Vitro Study ◽  
Mitral Flow

Effect of HFNC flow rate, cannula size, and nares diameter on generated airway pressures: An in vitro study

2012 ◽  
Vol 48 (5) ◽  
pp. 506-514 ◽  
Author(s):  
Emidio M. Sivieri ◽  
Jeffrey S. Gerdes ◽  
Soraya Abbasi
Keyword(s):  
Flow Rate ◽  
In Vitro Study ◽  
Vitro Study ◽  
Airway Pressures

Carbon dioxide washout during high flow nasal cannula versus nasal CPAP support: An in vitro study

2017 ◽  
Vol 52 (6) ◽  
pp. 792-798 ◽  
Author(s):  
Emidio M. Sivieri ◽  
Elizabeth E. Foglia ◽  
Soraya Abbasi
Keyword(s):  
Carbon Dioxide ◽  
In Vitro Study ◽  
High Flow ◽  
Nasal Cannula ◽  
Vitro Study ◽  
High Flow Nasal Cannula ◽  
Nasal Cpap

Aerosol Delivery Through Tracheostomy Tubes: An In Vitro Study

2013 ◽  
Vol 26 (2) ◽  
pp. 76-83 ◽  
Author(s):  
L. Pitance ◽  
L. Vecellio ◽  
G. Delval ◽  
G. Reychler ◽  
H. Reychler ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Aerosol Delivery ◽  
Tracheostomy Tubes

scholarly journals Impact of Oxygen Concentration Delivered via Nasal Cannula on Different Lung Conditions: A Bench Study

Healthcare ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1235
Author(s):  
Hui-Yun Tseng ◽  
Shih-Hsing Yang ◽  
Han-Sun Chiang
Keyword(s):  
Flow Rate ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Oxygen Flow Rate ◽  
Nasal Cannula ◽  
Lung Mechanics ◽  
Oxygen Flow ◽  
Low Flow ◽  
Substantial Impact ◽  
Spontaneously Breathing

Background: Measuring the fraction of inspired oxygen (FiO2) is challenging in spontaneously breathing patients with impaired respiratory mechanics during low-flow nasal cannula. Our study investigates the FiO2 with varied tidal volume (VT) and respiratory rate (RR) among different lung mechanics and provides equations to estimate the FiO2. Methods: Two training and test lungs were used in this study, and the three lung mechanics (normal (R5/C60), restrictive (R20/C80), obstructive (R5/C40)) were designed. Spontaneous breathing with VT (300, 500, and 700 mL) and RR (10, 20, and 30 breaths/min) was simulated. The flow rate of the nasal cannula was set to 1, 3, and 5 L per minute (LPM), and the FiO2 was measured at the carina. Results: The lowest and highest FiO2 were evident during high (700 mL) and low VT (300 mL), respectively, among normal, restrictive, and obstructive lung models. As RR increases, this decreases the FiO2. However, we found that VT and oxygen flow rate are the principal factors influencing measured FiO2 by multiple linear regression analysis. Conclusions: Our data suggest that the actual FiO2 is never as high in spontaneously breathing patients as that estimated. VT and oxygen flow rate had a substantial impact on the FiO2.

scholarly journals In Vitro Study of the Effect of Breathing Pattern on Aerosol Delivery During High-Flow Nasal Therapy

2019 ◽  
Vol 5 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Gavin Bennett ◽  
Mary Joyce ◽  
Louise Sweeney ◽  
Ronan MacLoughlin
Keyword(s):  
Breathing Pattern ◽  
In Vitro Study ◽  
High Flow ◽  
Vitro Study ◽  
Aerosol Delivery

scholarly journals Influence of orifice geometry and flow rate on effective valve area: An in vitro study

1990 ◽  
Vol 15 (5) ◽  
pp. 1173-1180 ◽  
Author(s):  
Frank A. Flachskampf ◽  
Arthur E. Weyman ◽  
J.Luis Guerrero ◽  
James D. Thomas
Keyword(s):  
Flow Rate ◽  
In Vitro Study ◽  
Vitro Study ◽  
Valve Area
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