Mechanical Ventilator VENT19

Tsuzuki, Marcos de Sales Guerra; Martins, Thiago C.; Takimoto, Rogério T.; Tanabi, Naser; Sato, Ayami; Scaff, William; Johansen, Carlos F. D.; Campos, Carlos; Kalynytschenko, Eduardo; Silva, Henrique F.; Gastaldin, Patrick; Picchiotti, Pietro P.; Andrioli, Maurício A.; Golanda, Renato L.; Bueno, Ricardo M. M.; Silverio, Thiago B.; Horikawa, Oswaldo

doi:10.1007/s41050-021-00031-z

Cited by 10 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First, the Ambu-bag (a manual resuscitator) squeezers: Ambu-bags are very low-cost devices which require an attendant to squeeze a bag to force air into the lungs of a patient. These may have valves which help maintain PEEP, and external devices designed to continuously squish the bags [ 15 , 25 ]. However, it is uncommon to leave a patient on these bags for long periods of time: notably, COVID-19 patients in critical condition need ventilator support for 2–3 weeks, and these devices are hard to precisely and digitally control.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

PVP1—The People’s Ventilator Project: A fully open, low-cost, pressure-controlled ventilator research platform compatible with adult and pediatric uses

et al. 2022

View full text Add to dashboard Cite

Mechanical ventilators are safety-critical devices that help patients breathe, commonly found in hospital intensive care units (ICUs)—yet, the high costs and proprietary nature of commercial ventilators inhibit their use as an educational and research platform. We present a fully open ventilator device—The People’s Ventilator: PVP1—with complete hardware and software documentation including detailed build instructions and a DIY cost of $1,700 USD. We validate PVP1 against both key performance criteria specified in the U.S. Food and Drug Administration’s Emergency Use Authorization for Ventilators, and in a pediatric context against a state-of-the-art commercial ventilator. Notably, PVP1 performs well over a wide range of test conditions and performance stability is demonstrated for a minimum of 75,000 breath cycles over three days with an adult mechanical test lung. As an open project, PVP1 can enable future educational, academic, and clinical developments in the ventilator space.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Hence there is a clear need for a broader range of solutions, both for research (e.g. to improve critical components [ 2 ]), clinical applications, and beyond [ 3 , 7 , 9 , 11 – 15 ].…”

Section: Introductionmentioning

confidence: 99%

PVP1—The People’s Ventilator Project: A fully open, low-cost, pressure-controlled ventilator research platform compatible with adult and pediatric uses

et al. 2022

View full text Add to dashboard Cite

show abstract

“…These techniques allow in a systematic way to consider in the control architecture the limitations of the current solutions. This methodology has been applied to other medical equipment [12]. In this context, a method is proposed for a VAD supervisory control system that:…”

Section: Research Motivationmentioning

confidence: 99%

Safety Control Architecture for Ventricular Assist Devices

et al. 2021

Self Cite

View full text Add to dashboard Cite

In patients with severe heart disease, the implantation of a ventricular assist device (VAD) may be necessary, especially in patients with an indication for heart transplantation. For this, the Institute Dante Pazzanese of Cardiology (IDPC) has developed an implantable centrifugal blood pump that will be able to help a diseased human heart to maintain physiological blood flow and pressure. This device will be used as a totally or partially implantable VAD. Therefore, performance assurance and correct specification of the VAD are important factors in achieving a safe interaction between the device and the patient’s behavior or condition. Even with reliable devices, some failures may occur if the pumping control does not keep up with changes in the patient’s behavior or condition. If the VAD control system has no fault tolerance and no system dynamic adaptation that occurs according to changes in the patient’s cardiovascular system, a number of limitations can be observed in the results and effectiveness of these devices, especially in patients with acute comorbidities. This work proposes the application of a mechatronic approach to this class of devices based on advanced control, instrumentation, and automation techniques to define a method to develop a hierarchical supervisory control system capable of dynamically, automatically, and safely VAD control. For this methodology, concepts based on Bayesian networks (BN) were used to diagnose the patient’s cardiovascular system conditions, Petri nets (PN) to generate the VAD control algorithm, and safety instrumented systems to ensure the safety of the VAD system.

show abstract

“…To help a patient, a ventilator can work in a variety of modes, including regulated mode, aided mode, and spontaneous breathing mode 4 . The ventilator has some control variables, such as constant pressure, volume, or both.…”

Section: Introductionmentioning

confidence: 99%

A novel PID controller for pressure control of artificial ventilator using optimal rule based fuzzy inference system with RCTO algorithm

Acharya

Das

2023

Sci Rep

View full text Add to dashboard Cite

In order to improve the pressure tracking response of an artificial ventilator system, a novel proportional integral derivative (PID) controller is designed in the present work by utilizing an optimal rule-based fuzzy inference system (FIS) with a reshaped class-topper optimization algorithm (RCTO), which is named as (Fuzzy-PID). Firstly, a patient-hose blower-driven artificial ventilator model is considered, and the transfer function model is established. The ventilator is assumed to operate in pressure control mode. Then, a fuzzy-PID control structure is formulated such that the error and change in error between the desired airway pressure and actual airway pressure of the ventilator are set as inputs to the FIS. The gains of the PID controller (proportional gain, derivative gain, and integral gain) are set as outputs of the FIS. A reshaped class topper optimization algorithm (RCTO) is developed to optimize rules of the FIS to establish optimal coordination among the input and output variables of the FIS. Finally, the optimized Fuzzy-PID controller is examined for the ventilator under different scenarios such as parametric uncertainties, external disturbances, sensor noise, and a time-varying breathing pattern. In addition, the stability analysis of the system is carried out using the Nyquist stability method, and the sensitivity of the optimal Fuzzy-PID is examined for different blower parameters. The simulation results showed satisfactory results in terms of peak time, overshoot, and settling time for all cases, which were also compared with existing results. It is observed in the simulation results that the overshoot in the pressure profile is improved by 16% with the proposed optimal rule based fuzzy-PID as compared with randomly selected rules for the system. Settling time and peak time are also improved 60–80% compared to the existing method. The control signal generated by the proposed controller is also improved in magnitude by 80–90% compared to the existing method. With a lower magnitude, the control signal can also avoid actuator saturation problems.

show abstract

Mechanical Ventilator VENT19

Cited by 10 publications

References 16 publications

PVP1—The People’s Ventilator Project: A fully open, low-cost, pressure-controlled ventilator research platform compatible with adult and pediatric uses

PVP1—The People’s Ventilator Project: A fully open, low-cost, pressure-controlled ventilator research platform compatible with adult and pediatric uses

Safety Control Architecture for Ventricular Assist Devices

A novel PID controller for pressure control of artificial ventilator using optimal rule based fuzzy inference system with RCTO algorithm

Contact Info

Product

Resources

About