A control system for mechanical ventilation of passive and active subjects

Abstract Synchronization of spontaneous breathing with breaths supplied by the ventilator is essential for providing optimal ventilation to patients on mechanical ventilation. Some ventilation techniques such as Adaptive Support Ventilation (ASV), Proportional Assist Ventilation (PAV), and Neurally...

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Bibliographic Details
Published in:Computer methods and programs in biomedicine 2013-06, Vol.110 (3), p.511-518
Main Author: Tehrani, Fleur T
Format: Article
Language:English
Subjects:
Adaptive support ventilation
Algorithms
Automatic control
Biological and medical sciences
Breathing
Computer programs
Computer Simulation
Control systems
Diseases of the respiratory system
Elasticity
Humans
Inspiration
Interactive Ventilatory Support - methods
Interactive Ventilatory Support - statistics & numerical data
Internal Medicine
Mechanical ventilation
Medical sciences
Models, Biological
Optimization
Other
Patients
Proportional-assist ventilation
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Software Design
Ventilation
Ventilator Weaning - methods
Ventilator Weaning - statistics & numerical data
Work of Breathing
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Summary:Abstract Synchronization of spontaneous breathing with breaths supplied by the ventilator is essential for providing optimal ventilation to patients on mechanical ventilation. Some ventilation techniques such as Adaptive Support Ventilation (ASV), Proportional Assist Ventilation (PAV), and Neurally Adjusted Ventilatory Assist (NAVA) are designed to address this problem. In PAV, the pressure support is proportional to the patient's ongoing effort during inspiration. However, there is no guarantee that the patient receives adequate ventilation. The system described in this article is designed to automatically control the support level in PAV to guarantee delivery of patient's required ventilation. This system can also be used to control the PAV support level based on the patient's work of breathing. This technique further incorporates some of the features of ASV to deliver mandatory breaths for passive subjects. The system has been tested by using computer simulations and the controller has been implemented by using a prototype.
ISSN:0169-2607
1872-7565
DOI:10.1016/j.cmpb.2013.01.013