What is a blood gas analyzer
In layman's terms, the blood gas analyzer is a medical device used to detect blood, which includes electrodes, sample chamber, digital arithmetic display and other components, and can store 250,000 sets of test results in a 1g hard disk, is a very fast and convenient instrument to detect. Blood gas analyzer not only can automatically calibrate, but also to achieve automatic sampling, after these two acts to do automatic detection and self-diagnosis of faults, etc., its analysis speed is very fast, but at the same time does not lose accuracy.
Features: automatic calibration, automatic sampling, automatic detection and self-diagnosis of faults and other functions, easy to operate, fast analysis, high accuracy.
Working principle: in the pipeline system under negative pressure suction, the sample blood is sucked into the capillary, and the capillary wall of the pH reference electrode, pH, PO2, PCO2 four electrodes contact, the electrodes will be measured by the conversion of the parameters into their respective electrical signals, these signals are amplified, analog-to-digital conversion sent to the instrument's microcomputer, after the arithmetic process to display and print out the results of the measurement. (see figure), thus completing the entire detection process.
The structure of the instrument is composed of electrode system, piping system and circuit system.
1, electrode system: electrode measurement system includes pH measurement electrode, PCO2 measurement electrode, PO2 measurement electrode. (1)The pH measurement electrode is a glass electrode, composed of Ag-AgCl electrode and appropriate amount of buffer solution, which mainly utilizes the membrane potential to determine the H concentration in the solution, and the reference electrode is a calomel electrode, whose role is to provide reference potential for the pH electrode. (2)The main structure of PCO2 measurement electrode is gas-sensitive electrode, the key lies in the CO2 molecules at the top of the electrode mono-permeable permeable membrane, through the determination of pH changes, and then through the logarithmic transformation to get the value of PCO2. (3)PO2 measurement electrode is based on the principle of electrolysis of oxygen, composed of Pt-Ag electrode, under the action of gas permeable membrane selection, the external application of a certain voltage, O2 in the blood is reduced at the Pt cathode, and at the same time the formation of a stable electrolytic current, through the determination of the change in the current so as to determine the blood samples in the PO2.
2, piping system: it is the key for the completion of automatic calibration, automatic measurement, automatic rinsing and other functions set up for the completion of automatic calibration, automatic measurement, automatic flushing. It is the key part for accomplishing the functions of automatic calibration, automatic measurement, automatic flushing, and so on.
3, the circuit system is mainly for the instrument measurement signal amplification and analog-to-digital conversion, display and print results. In recent years, the development of blood gas analyzer is mostly reflected in the upgrading of the circuit system, in the implementation of the computer program to complete the automated analysis process.
Blood gas analyzer manufacturers
One: Shanghai Ouqi Electronic Technology Co.
Manufacturer was founded in 2009, the manufacturer's main products: blood gas analyzers, electronic equipment, electronic products, computers, electromechanical equipment, mechanical equipment and so on. The manufacturer's principle: customer first, integrity first this manufacturer has a number of business partners, technical equipment is more advanced, but also has a number of professional and excellent scientific and technological talent, to ensure the quality of the product, the production of each process are excellence, this manufacturer is a more reliable manufacturer.
Two: Shanghai Xianxiang Instrumentation Co.
Manufacturer was founded in 2012, this factory since its inception has been adhering to the "science and technology for the development of the service for the purpose of the" concept, and constantly for customers to produce quality products, this manufacturer produces a more complete range of products to meet the various needs of different users, in addition, it has a group of professional and excellent scientific and technological talent, to ensure the quality of products, each process is perfect, this manufacturer is a more reliable manufacturer. Different users of the various needs, in addition to its price is also more reasonable, won the majority of customers recognized.
Three: Shanghai Shucheng Medical Science and Technology Development Co.
Manufacturer was founded in 2014, the manufacturer's registered capital: 5 million yuan; manufacturer's specifications: the manufacturer's technical services are more professional, after-sales service is also more complete, the product range is more complete, to provide better quality products and services, and at the same time, with domestic and foreign manufacturing enterprises to establish a more stable cooperation relationship with a number of manufacturing enterprises at home and abroad to ensure the sale of products.