Related Experiment Video
Updated: Jul 18, 2026

Use of an Integrated Low-Flow Anesthetic Vaporizer, Ventilator, and Physiological Monitoring System for Rodents
Published on: July 9, 2020
A pressure-controlled rat ventilator with electronically preset respirations.
Valentin L Ordodi1, V Paunescu, Ani A Mic
1Department of Physiology, University of Medicine and Pharmacy Victor Babes, Timisoara, Romania.
This study presents a novel rat pressure ventilator for laboratory animal research. This device offers precise control over breathing parameters, enhancing surgical safety and experimental outcomes in rodents.
Area of Science:
- Veterinary Medicine
- Surgical Technology
- Laboratory Animal Science
Background:
- Anesthesia and mechanical ventilation are critical for survival during major experimental surgery in laboratory animals.
- Ventilators assist breathing by delivering gas volumes into the lungs via an endotracheal tube.
- Two main types of ventilators exist for small rodents: volume-controlled and pressure-controlled.
Purpose of the Study:
- To introduce a new pressure-controlled ventilator designed specifically for rats.
- To highlight the device's features for improved control and monitoring during rodent surgery.
Main Methods:
- Development of a rat pressure ventilator incorporating a simple expiratory valve.
- Implementation of electronic expiration control for gas delivery.
- Integration of features for easy pressure monitoring and frequency adjustment.
Main Results:
- The developed ventilator provides electronic control over expiration.
- The system allows for straightforward adjustments to pressure and respiratory rate.
- This facilitates precise ventilation management in surgical rodent models.
Conclusions:
- The novel rat pressure ventilator offers enhanced control and ease of use for experimental surgery.
- This device can improve the safety and reliability of ventilation in rodent research.
- Further adoption of such technology can advance laboratory animal welfare and research integrity.
Related Concept Videos
Mechanical Ventilation II: Invasive Ventilation
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...
Ventilatory Modes
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...
Mechanical Ventilation I: Indication and Settings
Mechanical Ventilation III: Noninvasive Ventilation
Noninvasive Positive-Pressure Ventilation (NIPPV)
Assessment of Ventilation I: Respiratory Rate
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
Physiology of Respiration II: Neurogenic Control of Respiration
Central Control
The brainstem is the primary site of central control, hosting respiratory centers:

