[Design of Portable Noninvasive Positive Pressure Ventilator System Based on Threshold Trigger of Flow Rate Change].
Zhongguo Yi Liao Qi Xie Za Zhi
; 47(5): 512-517, 2023 Sep 30.
Article
em Zh
| MEDLINE
| ID: mdl-37753889
ABSTRACT
In order to effectively treat respiratory diseases, a non-invasive positive pressure ventilator system is designed, the overall structure design of the system is proposed, and the hardware construction is completed. The breathing state of the patient is identified by the threshold triggering method of the flow rate of change, and the calculation of the flow rate of change is realized by the least squares method. At the same time, the breathing parameters are calculated in real time according to the flow-time and pressure-time characteristic curves. In addition, CMV, CPAP, BiPAP and PSV ventilation modes are also implemented. Finally, the parameter measurement accuracy and ventilation mode setting tests are carried out. The results show that the calculation of key breathing parameters provided by the system meets the relevant standards, and supports the stable output of 4 ventilation modes at the same time, provides breathing treatment for patients, and meets the basic functional requirements of the ventilator.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Respiração
/
Ventiladores Mecânicos
Tipo de estudo:
Guideline
/
Prognostic_studies
Limite:
Humans
Idioma:
Zh
Revista:
Zhongguo Yi Liao Qi Xie Za Zhi
Ano de publicação:
2023
Tipo de documento:
Article