The COVID-19 pandemic has intensified the pressure on the healthcare system, leading to an increasing demand for ventilators in various hospitals. And with the continuous fermentation of the epidemic, especially the development of overseas epidemics exceeding expectations, the shortage of medical supplies is astonishingly large, and ventilators have become the "urgent need" second only to masks and toilet paper in foreign countries. Even life-saving ventilators are in a state of shortage.
For patients with COVID-19, ventilators are their "life-saving machine". After being infected with the virus, the typical symptom of critically ill patients is difficulty breathing, and improving breathing is an important treatment method. A ventilator can maintain a certain pressure in the alveoli at the end of exhalation, increase functional residual capacity, prevent alveolar collapse, thereby changing ventilation and air exchange functions, achieving the goal of assisting patients with respiratory therapy, and is also a key device for prolonging patients' lives.
The reason why ventilators occupy a very important position in the field of modern medicine is that the performance level of ventilators is mainly reflected in human-machine synchronization. Patients who need to use ventilators have high requirements for assisted breathing, especially for precise control of breathing rhythm and degree. This requires high response time and precision of ventilators, and their components are relatively fine.
The ventilator technology consists of hardware and software, with hardware including pressure drive systems, patient circuits, filters, and valves. Key components include flow sensors, chips, voice coil motors, and turbofans.
As an important component of the ventilator pneumatic system, the flow sensor is responsible for converting the inhaled and exhaled gas flow into electrical signals, which are sent to the signal processing circuit to detect and display the inhaled and exhaled tidal volume, minute ventilation volume, and flow rate. This can be used to calculate the tidal volume of inhalation and exhalation, as well as the ventilation rate per minute. The monitoring system and medical staff can use this to determine if there are any abnormalities.
Therefore, the performance of flow sensors directly affects the accuracy and reliability of ventilator parameters. The US Siargo quality flow sensor module FS6122 series provided by Gongcaiwang is designed specifically for respiratory circuits such as emergency ventilators and home ventilators. Its mechanical interface is ISO-22mm, and the inlet and outlet are designed differently, providing strong error prevention and minimizing dead zones. Secondly, the product has different flow ranges, suitable for both infant and adult applications. It is worth noting that the flow sensor has proprietary MEMS technology from SiXiang Micro Electro Mechanical Systems Co., Ltd., which ensures product reliability and performance while maintaining a very low price.
Quality flow sensor module FS6122 series product features:
Specially designed for medical continuous positive pressure ventilation (CPAP) applications
Directly measure mass flow rate and relative pressure
Compact design, small volume, small dead space
Fast response time, capable of providing both linear digital and analog signals simultaneously
low power consumption
Quality flow sensor module FS6122 series flow signal:
In addition to the flow sensor, the Japanese FIGARO long-life electrochemical oxygen sensor (O2 sensor) - KE-25F3/KE-25/KE-50 provided by Gongcaiwang can also be applied to ventilators. Its main function is to detect the oxygen concentration of the mixed gas inside the ventilator, which is a key indicator of the ventilator. When the measured oxygen concentration value of the ventilator deviates significantly from the set oxygen concentration value, the machine will issue an alarm prompt, and the ventilator needs to be calibrated.
The KE series of oxygen sensors (KE-12/KE-25/KE-50) is a unique original battery type oxygen sensor developed by Japan in 1985. Its notable features are long service life, excellent chemical stability, and resistance to interference and influence from CO2. The KE series sensors are developed to meet the growing demand for detecting oxygen in various industries, such as combustible gas detection, biotechnology applications, equipment applications, residential gas appliances, and so on.
Long life electrochemical oxygen sensor KE series (KE-25F3/KE-25/KE-50) technical parameters:
(1) Measurement range 0-100 O2
(2) Accuracy KE-25: ± 1% (full range); KE-50: ± 2% (full range)
(3) Working temperature: 5-40 ℃
(4) Storage temperature -20 to+60 ℃
(5) Response time KE-25:14 ± 2 seconds; KE-50:60 ± 5 seconds
(6) KE-25:10.0-15.5mv output in the air; KE－50：47．0－65．0mv”
(7) Life expectancy KE-25:5 years; KE-50:10 years
In the future field of healthcare, many instruments, equipment, and detection methods will utilize sensor technology. With the development of technology, sensors will undoubtedly play a greater and more advantageous role.
If you have equipment requirements or would like to know more details and quotations, please feel free to contact Shanghai Oberson Medical Equipment Co., Ltd. for consultation.
