https://op-vent.stanford.edu/ A different take: without an ambu bag. Claims: A mechanical ventilator design developed by Dally can be assembled quickly, using off-the-shelf parts with a total cost of around $400 — making it an accessible and affordable alternative to traditional, dedicated ventilators, which can cost $20,000 or more. Includes just two central components — a solenoid valve and a microcontroller. The design is called the OP-Vent , and in the video below you can see how bare-bones it is in terms of hardware compared to existing alternatives, including some of the other more complex emergency-use ventilator designs developed in response to COVID-19. Has been developed using input from mechanical engineers and doctors, including Dr. Andrew Moore, a chief resident at Stanford University and Dr. Bryant Lin, a medical devices expert and company co-founder. Can be assembled in as little as five minutes, and is small enough to fit in a Pelican case for easy transpor...
https://www.spservices.ie/item/O-TwoMedical_SMARTBAGVentilationTrainerBoxwithSMARTStandardBVM_51_63_3688_1.html has a bag-valve-mask test kit, which can show if the lungs are over-inflated or the delivered flow rate is too high, the high airway pressure generated will cause air to enter the stomach. In real life this can only be seen when the patient's abdomen distends and/or they begin to vomit. Also: 1 cmH 2 O (conventional) = 98.0665 pascals or approximately 1 cmH 2 O (conventional) ≈ 100 pascals or 1 cmH 2 O (conventional) ≈ 1 hectopascal https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/maximal-inspiratory-pressure appears to have an incorrect obscure or deceptive diagram for inspiratory lung pressures on the x-axis it seems to contradict the text. https://www.ncbi.nlm.nih.gov/pubmed/16677384 details maximum inspiratory pressure for healthy people . In women, maximum ex...
PANDEMIC VENTILATOR Decision make 2 prototypes Next decide which type Slightly error prone discussion of types https://www.sleepdr.com/the-sleep-blog/what-is-a-cpap-machine-difference-between-cpap-apap-bipap-and-asv/ https://emcrit.org/emcrit/some-additional-covid-airway-management-thoughts/ https://www.ausmed.com/cpd/articles/oxygen-flow-rate-and-fio2 https://panvent.blogspot.com/2009/09/high-frequency-oscillatory-ventilator.html whatsapp group alexandrei russeau phone volka eu wide make Questions for qualified medical personnel Questions what type of ventilator is used in ireland for Coronavirus patients? What is the most common model of such ventilators? What is the most common range of settings for coronavirus treatment,which modes are used .?The narrower the range of modes and settings required for a COVID19 patient ,the quicker and easier it will be to produce a narrowly focussed ventilator for COVID 19 alone. A trade-off will be reduc...
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