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A paediatric ventilator with a fluidic control system.

H J Manson, D G Ross, C R Dundas

British Journal of Anaesthesia

|March 1, 1979

Summary

A new fluidic-logic controlled paediatric ventilator offers independent control over breathing parameters like pressure and flow. This device includes safety warnings and an isolated breathing circuit for enhanced patient care and sterilization.

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Area of Science:

Biomedical Engineering
Medical Devices
Respiratory Care

Background:

Paediatric mechanical ventilation requires precise control over various respiratory parameters.
Existing ventilators may have limitations in independent control and safety features for neonates and children.
Fluidic logic offers a potential alternative for ventilator control systems.

Purpose of the Study:

To describe the design and functionality of a novel fluidic-logic controlled paediatric ventilator.
To highlight the independent control capabilities for key ventilation parameters.
To detail the integrated safety and warning systems for enhanced patient monitoring.

Main Methods:

The ventilator utilizes a fluidic-logic controlled T-piece occluder system.
Independent control is achieved for inspiratory/expiratory time, pressure limits, PEEP, CPAP, and inspiratory flow rate.
Intermittent mandatory ventilation (IMV) mode is incorporated.
Warning systems for driving gas failure, low airway pressure, and inspiratory pressure limits are integrated.
The breathing circuit is designed to be isolated from control and warning systems.

Main Results:

The designed paediatric ventilator enables independent adjustment of critical ventilation parameters.
The system incorporates comprehensive warning mechanisms for potential failures.
The isolated breathing circuit facilitates straightforward sterilization procedures.
Fluidic logic control allows for precise management of respiratory support.

Conclusions:

The developed fluidic-logic controlled paediatric ventilator provides versatile and independent control over ventilation settings.
Integrated safety features and an easily sterilizable design enhance its suitability for paediatric respiratory support.
This innovative design addresses key requirements for modern paediatric mechanical ventilation.

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