Seemingly simple ventilator, in fact, the technical content is quite high . According to industry sources, modern medical ventilators have long been not simply to the patient's lungs through the oxygen pressure tank, it will be based on the patient's condition, vital signs, blood oxygen saturation and other indicators, through the pulmonary dynamics parameters at any time to adjust the supply of oxygen, and rely on servo-feedback control system, the use of optimization algorithms to keep the oxygen supply frequency synchronized with the patient's breathing.
This complex system also has high requirements for stability. Whether it is the pressure drive system, the patient circuit, the filter or the valve, if any part fails, the ventilator may malfunction, thus endangering the patient's life. To cope with unexpected situations such as power outages, the ventilator also requires an independent backup power source.
The U.S. industrial giants that have rushed into the industry not only need time to revamp production lines and other "hardware," but also need to master core algorithms and other life-sustaining "software," which, I'm afraid, is not something that can be figured out in a short period of time.
China has supplied more than 5,000 respirators to India
This comes after Sun Weidong, China's ambassador to India, tweeted specific data on the number of respirators, oxygen concentrators, and other medical equipment that China has supplied to India in the recent past. According to China's General Administration of Customs, since April this year, China has supplied more than 5,000 respirators, 21,569 oxygen concentrators, more than 21,480,000 masks and about 3,800 tons of medicines to India.
According to data from the World Health Organization, one in six new crown patients will develop severe illness and respiratory distress, leading to the use of non-invasive ventilator-assisted ventilation, and if the condition worsens, invasive ventilator-controlled ventilation.
Before the outbreak, there were more than 10 manufacturers worldwide that could produce medical intensive care ventilators of a certain size, with an annual output of about 100,000 units, including about 10,000 units from Chinese manufacturers. After the outbreak of the epidemic, demand soared, and major manufacturers urgently boosted production capacity, but there is still a huge gap.