Many respiratory diseases will reduce the oxygen saturation in human blood. In addition, the dysfunction of automatic regulation caused by anesthesia, major surgical trauma, and injuries caused by some medical examinations may lead to problems in patients' oxygen supply and reduce the oxygen saturation of the human body. Causes the patient to have dizziness, weakness, vomiting and other symptoms, which can be life-threatening in severe cases. Therefore, knowing the patient's oxygen saturation in time is helpful for doctors to find problems in time, which is of great significance in the field of clinical medicine.
Insufficient blood oxygen can lead to inattention, memory loss, dizziness, anxiety and other symptoms; Myocardium is very sensitive to hypoxia. Acute myocardial hypoxia may lead to ventricular fibrillation and even cardiac arrest. Severe or long-term hypoxia leads to myocardial failure, blood pressure drop and blood circulation failure; What's more, hypoxia directly damages the cerebral cortex, causing degeneration and necrosis of brain tissue. Monitoring blood oxygen can effectively prevent the occurrence of danger. If there is hypoxia, make a decision to replenish oxygen at the first time, and reduce the chance of cardiovascular and cerebrovascular diseases.
Question 2: What is the purpose of oxygen saturation monitoring?
Question 3: What is the purpose of oxygen saturation monitoring? 1, the concept of oxygen saturation
Oxygen saturation (SaO2 _ 2) is the percentage of the capacity of oxygen-bound oxygenated hemoglobin (HbO2 _ 2) in blood to the capacity of all bondable hemoglobin (Hb), that is, the blood oxygen concentration, which is an important physiological parameter of respiratory circulation. Functional oxygen saturation is the ratio of HbO2 concentration to HbO2+Hb concentration, which is different from the percentage of oxygenated hemoglobin. Therefore, monitoring arterial oxygen saturation (SaO2 _ 2) can estimate oxygenation of lung and oxygen-carrying capacity of hemoglobin. The oxygen saturation of normal arterial blood is 98%, and that of venous blood is 75%.
The metabolic process of human body is a biological oxidation process. Oxygen needed in the metabolic process enters human blood through the respiratory system, combines with hemoglobin (Hb) in red blood cells to form oxygenated hemoglobin (HbO2), and then is delivered to various tissues and cells of human body. The ability of blood to carry and transport oxygen is measured by oxygen saturation.
2. The oxygen probe is a machine part.
No matter what kind of blood oxygen probe, its sensor is composed of two light-emitting tubes and a photoelectric tube. One LED emits visible red light with a wavelength of 660nm, and the other emits invisible infrared light with a wavelength of 920-950 nm. There is not much difference in the composition of various probes, but the connection mode is slightly different. Its internal structure can generally be divided into three types. The author divides it into AC type, * * * male type and * * * female type in his own language. The structural schematic diagrams are shown in Figure 2, Figure 3 and Figure 4 respectively. Different polarity connections, different types of light, different signal reception and output. The internal structures of existing oxygen probes are basically the same, and some of them are equipped with resistors with different resistance values at the joints as the detection of probe connection disconnection.
Question 4: What is an oxygen saturation detector? What is the correct function and usage of oximeter? It should be called oxygen saturation monitor, which is also an ECG monitor. It belongs to medical instruments and is used to monitor vital signs. It can display oxygen saturation, blood pressure, heart rate and breathing.
Question 5: What is the oxygen saturation detector? What is the function and purpose? The correct one should be called an oxygen saturation monitor, which is also an ECG monitor. Which belongs to medical devices and is used for monitoring vital signs. It can display oxygen saturation, blood pressure, heart rate and breathing.