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Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

131
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...
131
Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

110
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...
110
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen01:16

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

560
Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
560
Ventilatory Modes01:14

Ventilatory Modes

137
Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
137
Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

338
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...
338
Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

304
The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
304

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Updated: Jun 28, 2025

Mechanical Ventilation Boot Camp Curriculum
07:36

Mechanical Ventilation Boot Camp Curriculum

Published on: March 12, 2018

10.2K

DRDO's Portable Low-Cost Ventilator: "DEVEN".

Harminder Singh Johar1, Kuldeep Yadav2

  • 1RCI, DRDO, Hyderabad, India.

Transactions of the Indian National Academy of Engineering : an International Journal of Engineering and Technology
|April 16, 2024
PubMed
Summary
This summary is machine-generated.

Scientists developed DEVEN, an economical and portable ventilator. This device, adapted from missile technology, offers high-end features for critical care needs, especially during pandemics.

Keywords:
ControllerPortable ventilatorPressure regulatorsSolenoid valves

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Area of Science:

  • Biomedical Engineering
  • Mechanical Engineering
  • Aerospace Technology Adaptation

Background:

  • The COVID-19 pandemic highlighted a critical need for accessible and portable ventilators.
  • Existing high-end ventilators are often costly and lack portability for field applications.

Purpose of the Study:

  • To design and develop a reliable, portable, and low-cost ventilator named DEVEN.
  • To adapt existing missile control technology for medical ventilator applications.

Main Methods:

  • DEVEN utilizes a micro-controller-operated solenoid valve system.
  • The design is based on tweaking existing hot gas reaction control systems (HRCS) used in missile attitude control.
  • Existing controllers for electro-mechanical actuators were modified for inspiratory and expiratory line control.

Main Results:

  • DEVEN offers features comparable to high-end ventilators.
  • The portable design allows for field use with a portable air compressor and reservoir.
  • The ventilator is suitable for use in ambulances, mobile vehicles, and remote/rural areas.

Conclusions:

  • DEVEN provides a cost-effective and portable solution for critical respiratory support.
  • The successful adaptation of aerospace technology demonstrates innovative approaches to medical device development.
  • This economical ventilator can significantly address ventilator shortages in diverse settings, including pandemic situations and underserved regions.