Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation (NIPPV)
Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
Laminar Flow: Problem Solving01:24

Laminar Flow: Problem Solving

Laminar flow occurs when a fluid moves smoothly in parallel layers with minimal mixing and turbulence. In fluid mechanics, ensuring laminar flow within a pipe is essential for precise control of flow characteristics, especially in engineering applications. The key factor in determining whether flow remains laminar is the Reynolds number, a dimensionless quantity that depends on the fluid's velocity, density, viscosity, and the pipe's diameter. A Reynolds number of 2100 or lower indicates...
Steady, Laminar Flow in Circular Tubes01:23

Steady, Laminar Flow in Circular Tubes

Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Late Holocene "Turn-Off" of Coral Reef Growth in the Northern Red Sea and Implications for a Sea-Level Fall.

Global change biology·2025
Same author

The effects of demographics, functioning, and perceptions on the relationship between self-reported and objective measures of driving exposure and patterns among older adults.

Transportation research. Part F, Traffic psychology and behaviour·2018
Same author

Oxidative T Cell Modifications in Lupus and Sjogren's Syndrome.

Lupus (Los Angeles)·2017
Same author

Microfluidic fabrication of 6-methoxyethylamino numonafide-eluting magnetic microspheres.

Acta biomaterialia·2013
Same author

Fast-track ventilation strategy to cater for pandemic patient isolation surges.

The Journal of hospital infection·2012
Same author

Cystic fibrosis modifier genes related to Pseudomonas aeruginosa infection.

Genes and immunity·2011

Related Experiment Video

Updated: Jun 6, 2026

Evaluating Regional Pulmonary Deposition using Patient-Specific 3D Printed Lung Models
07:56

Evaluating Regional Pulmonary Deposition using Patient-Specific 3D Printed Lung Models

Published on: November 11, 2020

Rethinking hospital general ward ventilation design using computational fluid dynamics.

R Yam1, P L Yuen, R Yung

  • 1City University of Hong Kong, Hong Kong SAR, PR China. MERY@cityu.edu.hk

The Journal of Hospital Infection
|December 7, 2010
PubMed
Summary
This summary is machine-generated.

Improving hospital indoor ventilation by controlling air return from within ward cubicles significantly reduces airborne infection spread. This cost-effective design enhances air quality and microbe removal, matching isolation room standards.

More Related Videos

Design and Optimization Strategies of a High-Performance Vented Box
14:23

Design and Optimization Strategies of a High-Performance Vented Box

Published on: June 9, 2023

Related Experiment Videos

Last Updated: Jun 6, 2026

Evaluating Regional Pulmonary Deposition using Patient-Specific 3D Printed Lung Models
07:56

Evaluating Regional Pulmonary Deposition using Patient-Specific 3D Printed Lung Models

Published on: November 11, 2020

Design and Optimization Strategies of a High-Performance Vented Box
14:23

Design and Optimization Strategies of a High-Performance Vented Box

Published on: June 9, 2023

Area of Science:

  • Hospital Infection Control
  • Building Environmental Engineering
  • Airborne Disease Transmission

Background:

  • Indoor ventilation is crucial for minimizing airborne infections in hospitals.
  • Conventional ventilation systems in general wards may not adequately prevent cross-infection.
  • Effective air quality control is essential for patient safety and healthcare outcomes.

Purpose of the Study:

  • To evaluate the role of ventilation in preventing and controlling hospital-acquired infections.
  • To identify a simple, cost-effective ventilation design for reducing cross-infection in general wards.
  • To compare the microbial removal efficiency of different ventilation systems using computational fluid dynamics.

Main Methods:

  • Utilized computational fluid dynamic (CFD) analysis to simulate airflow and microbe removal.
  • Compared a novel ventilation system with rearranged air return (from inside cubicles) against conventional corridor air return.
  • Assessed ventilation performance and microbial clearance rates under different configurations.

Main Results:

  • The novel ventilation design significantly improved ventilation performance and microbe removal rates.
  • Controlling air return from within ward cubicles boosted air ventilation rates effectively.
  • The enhanced system achieved standards comparable to isolation rooms at a lower cost.

Conclusions:

  • A simple, cost-effective ventilation design with cubicle-controlled air return can significantly minimize cross-infection in hospital general wards.
  • This improved ventilation strategy offers a viable solution for both new constructions and retrofitting existing facilities.
  • Widespread adoption of these ventilation parameters is recommended to enhance patient safety and reduce healthcare-associated infections.