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The composition and significance of ECG lead lines
1. Limb leads Including standard limb leads I, II, and III and compression unipolar limb leads aVR, aVL, and aVF. (1) Standard limb lead: also known as bipolar lead, which reflects the potential difference between the two limbs. (2) Pressurized unipolar limb lead: in the two electrodes, only one ...Read more -
High Frequency Electrosurgical Units-Working principle and precautions for safe use
Electrosurgical units (ESU) is an electrosurgical instrument that use high-frequency electrical current to cut tissue and control bleeding by causing coagulation. It heats the tissue when the high-frequency high-voltage current generated by the effective electrode tip in contact with the body, an...Read more -
Functional classification of monitors
According to the function classification, there are three types of bedside monitors, central monitors, and outpatient monitors. They are divided into intelligent and non-intelligent. (1) Bedside monitor: It is an instrument that is connected to the patient at the bedside. It can continuously dete...Read more -
The principle and function of ultrasonic probe
1. What is an ultrasonic probe The probe used in ultrasonic testing is a transducer that uses the piezoelectric effect of the material to realize the conversion of electrical energy and sound energy. The key component in the probe is the wafer, which is a single crystal or polycrystalline sheet w...Read more -
How to use a sphygmomanometer?
How to use sphygmomanometer: 1. Electronic sphygmomanometer 1) Keep the room quiet, and the room temperature should be kept at about 20°C. 2) Before the measurement, the subject should be relaxed. It is best to rest for 20-30 minutes, empty the bladder, refrain from drinking alcohol, coffee or st...Read more -
What are the features of the blood pressure monitor?
The functional characteristics of the blood pressure monitor are as follows: Monitoring ECG: Record the ECG waveform for up to 20 seconds while measuring blood pressure each time, which constitutes blood pressure/ECG dual monitoring. Pulse wave: The holographic review of blood pressure monitoring...Read more -
Function and principle of blood oxygen probe
1. Function and principle According to the spectral characteristics of oxyhemoglobin (HbO2) and reduced hemoglobin (Hb) in the red light and infrared light regions, it can be seen that the absorption of HbO2 and Hb in the red light region (600-700nm) is very different, and the light absorption an...Read more -
Trouble and troubleshooting of monitor caused by ECG lead wire
The electrocardiogram monitor is an important tool for medical care at present. Whether it is an intensive care unit or a general ward, it is generally equipped with this kind of equipment. The main purpose of the ECG monitor is to detect and display the ECG signal generated by the patientR...Read more -
Common failures and troubleshooting of monitors
1. Fault alarm caused by external environment 1) Power alarm Caused by disconnection of the power cord, power outage, or dead battery. Generally, monitors have their own batteries. If the battery is not charged for a long time after use, it will prompt a low battery alarm. 2) The ECG and respirat...Read more -
Classification of Ultrasonic Probes
1. Straight probe: single crystal longitudinal wave straight probe double crystal longitudinal wave straight probe 2. Oblique probe: Single crystal shear wave oblique probe a1<aL<aⅡ, double crystal shear wave oblique probe, single crystal longitudinal wave oblique probe aL<a1 for small...Read more -
spo2 probe instructions and correct use method
For cleaning and disinfection, 70% ethanol solution can be used to clean the surface of the product. If you need to do low-level disinfection treatment, you can use 1:10 bleach. Do not use undiluted bleach (5%-5.25% sodium hypochlorite) or other unspecified cleaning agents, because they will caus...Read more -
What is spo2 probe？
The SpO2 meter includes three main parts: probe, function module and display part. For most monitors on the market, the technology for detecting SpO2 is already very mature. The accuracy of the SpO2 value detected by a monitor is largely related to the probe. （1）Detection device: The light-emi...Read more