Portable, Low Cost, Closed-Loop Mechanical Ventilation Using Feedback from Optically Isolated Analog Sensors

Zulfiqar, Sara; Nadeem, Hamza; Tahir, Zamen; Mazhar, Minnaam; Hasan, K. M.

doi:10.1109/tencon.2018.8650277

Cited by 3 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The air pump used a DC piston, with a modified converter as speed controller, and PID tuned so that it can be replaced with a similar pump. The pressure sensor used MPX4250DP for negative and positive pressure parameters such as PEEP, while the airflow rate sensor used AWM720P1 for the respiratory rate per minute (BPM) parameter [18] [19]. However, this study did not explained the results of measuring tools with comparison tools so that the error value for each parameter measurement was not yet known.…”

Section: Introductionmentioning

confidence: 99%

Pressure Sensor Stability Analysis of Positive End Expiratory Pressure Parameters in Flow Analyzer Design

Wakidi

Kholiq

Chandrasekaran³

et al. 2023

Indones.J.electronic.electromed.med.inf

View full text Add to dashboard Cite

The Positive End Expiratory Pressure (PEEP) parameter is a parameter that must be considered in the process of determining the patient's condition, a safe threshold, and must be in accordance with the settings. However, often the PEEP value on the ventilator does not match the settings so that the measuring instrument capable of detecting PEEP on the ventilator is the Flow Analyzer. The purpose of this study was to design a Flow Analyzer using the MPX2010 sensor to analyze the stability of the PEEP parameters on the ventilator. This study used PEEP settings of 0, 5, 8, 11, 14, 17, 20, 23, 26, and 29 cmH2O. Data were collected using a ventilator with VCV (Volume Control Ventilation) and PCV (Pressure Control Ventilation) modes. The tool used for reference from standard measurements uses the Standard Flow Analyzer tool. The results of this study indicate that the measurement accuracy of PEEP parameters with the Flow Analyzer module at each PEEP setting has the smallest error of ±0% at 0 cmH2O setting so that it also has the smallest value of 0 by standard. deviation and uncertainty (UA) value 0 at each setting. The Flow Analyzer measurement module has the largest error in the 5 cmH2O setting, which is ±13.2% with the largest correction value of 0.77. From the data obtained, it can be said that the monitoring of the PEEP parameter is quite stable even though the value is still out of tolerance. Monitoring of PEEP stability parameters can be implemented during the ventilator calibration process which needs to be carried out to analyze damage and reduce the time of damage to the ventilator.

show abstract

Section: Introductionmentioning

confidence: 99%

Pressure Sensor Stability Analysis of Positive End Expiratory Pressure Parameters in Flow Analyzer Design

Wakidi

Kholiq

Chandrasekaran³

et al. 2023

Indones.J.electronic.electromed.med.inf

View full text Add to dashboard Cite

show abstract

“…Therefore, when applying VM, the accuracy of the indication, the patient, and the method of application should be analyzed, and possible complications must always be taken into account. In addition, the physiology of respiration must be properly understood during VM application [10].…”

Section: Introductionmentioning

confidence: 99%

A Novel Multi-Patient Mechanical Ventilator Drive System Using Continuously Variable Transmission and Reverse Gearbox

Haq¹,

Suwardiyanto²,

Kristanto³

et al. 2021

International Journal on Advanced Science, Engineering and Information Technology

View full text Add to dashboard Cite

In the present study, a new model of multi-mechanical ventilator drive using a continuously variable transmission (CVT) cone was presented as the main driving force to control the pressure of the BVM Ambu bag, which can produce different airflow pressures for several patients, and using a worm gear to isolate the CVT cone so as not to get the load generated from the pressure of the Ambu bag. In addition, the reverse gear transmission system is used to control the direction of rotation, and the leadscrew is used to change the rotation according to the linear translational motion of the Ambu bag pushing arm. In this system, a DC motor is used as the main driver, and a flexible tuner cable that can be connected to other ventilators is utilized. This research shows that this CVT system can reduce rotation down to 60.35% and increase rotation up to 148.26% with constant rotation input. There are 23 points of change in the position of the belt, which causes variations in the pouch pressing. The system can produce the highest and lowest pressure value at 20.2 and 0.4 cm H2O. Simultaneously, the rotation of the flexible tuner cable showed no significant change. However, the weakness in the CVT system is the belt friction with the cone surface causing heat and slippage. In this case, the selection of the appropriate material and belt shape can cause belt displacement easiness that important in appropriate speed for applied pressure.

show abstract

“…Finally, more complex models can be found, which are based on the use of gas pressure intake, implementing a pneumatic circuit of some complexity, which through the use of solenoid valves, enables the control of the direction of inspiratory and expiratory flow, as well as the applied pressure or inspired volume [20][21][22][23][24]. The main problem lies in the portability of these systems, increasing their size, the difficulty of transport, and the use if no compressed air intake is available on-site [25].…”

Section: Introductionmentioning

confidence: 99%

“…An example of the simplest configuration of this type of system can be found in [20], which presented a pneumatic system, making use of a reservoir bag, to increase the inertia of the system and reduce pressure changes. Other systems that are similar to the ones described above but with the possibility of oxygen injection were presented in [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

ResUHUrge: A Low Cost and Fully Functional Ventilator Indicated for Application in COVID-19 Patients

Vivas

Segovia

Bravo

et al. 2020

Sensors

View full text Add to dashboard Cite

Although the cure for the SARS-CoV-2 virus (COVID-19) will come in the form of pharmaceutical solutions and/or a vaccine, one of the only ways to face it at present is to guarantee the best quality of health for patients, so that they can overcome the disease on their own. Therefore, and considering that COVID-19 generally causes damage to the respiratory system (in the form of lung infection), it is essential to ensure the best pulmonary ventilation for the patient. However, depending on the severity of the disease and the health condition of the patient, the situation can become critical when the patient has respiratory distress or becomes unable to breathe on his/her own. In that case, the ventilator becomes the lifeline of the patient. This device must keep patients stable until, on their own or with the help of medications, they manage to overcome the lung infection. However, with thousands or hundreds of thousands of infected patients, no country has enough ventilators. If this situation has become critical in the Global North, it has turned disastrous in developing countries, where ventilators are even more scarce. This article shows the race against time of a multidisciplinary research team at the University of Huelva, UHU, southwest of Spain, to develop an inexpensive, multifunctional, and easy-to-manufacture ventilator, which has been named ResUHUrge. The device meets all medical requirements and is developed with open-source hardware and software.

show abstract

Portable, Low Cost, Closed-Loop Mechanical Ventilation Using Feedback from Optically Isolated Analog Sensors

Cited by 3 publications

References 1 publication

Pressure Sensor Stability Analysis of Positive End Expiratory Pressure Parameters in Flow Analyzer Design

Pressure Sensor Stability Analysis of Positive End Expiratory Pressure Parameters in Flow Analyzer Design

A Novel Multi-Patient Mechanical Ventilator Drive System Using Continuously Variable Transmission and Reverse Gearbox

ResUHUrge: A Low Cost and Fully Functional Ventilator Indicated for Application in COVID-19 Patients

Contact Info

Product

Resources

About