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What is a defibrillator monitor and how to distinguish it?

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Update time : 2024-01-23 16:23:00
What is a defibrillator monitor
A kind of emergency equipment, in addition to the basic function of defibrillation, more advanced monitoring functions such as ECG, blood oxygen saturation, non-invasive blood pressure and other aspects of human life cycle are added, which is called a defibrillation monitor.
The basic components of a defibrillation monitor, product performance, structure and composition. This product is mainly composed of the main unit, defibrillation electrodes, ECG lead wires, pulse oximeter sensor, pacing electrodes, and non-invasive blood pressure measurement cuff.
Application scope of defibrillation monitor
(1) Vital sign monitoring (ECG, blood oxygen, non-invasive blood pressure).
(2) External defibrillation (electrode pads, adhesive electrodes, AED defibrillation).
(3) Internal defibrillation (internal defibrillation electrodes).
(4) Start a blog.
(5) The main targets are arrhythmias, atrial fibrillation, ventricular fibrillation and other heart diseases that can be fatal in a short time.
What is the difference between a defibrillator monitor and a defibrillation AED?
Automatic external defibrillator, also known as AED, is small, easy to operate and portable. For use outside the hospital, it is a rescue equipment that can also be used by ordinary people. There are voice prompts and there are markings on the electrode pads, so the operation is very simple.
Defibrillation monitor is specially used in hospitals. It is like the one used by doctors in TV dramas for first aid. It has two electrode plates that look like electric irons. Apply conductive paste on the electrode plates to make the electrode plates adhere closely to the skin, and then charge them. The users have high professional requirements and are generally professional medical staff.
AEDs are generally used outside hospitals and do not require high professionalism from users. They can be used after simple training. —Universal devices
Defibrillation monitor for hospital use. It has high professional requirements for the users, who are generally professional medical staff. --Professional equipment
From the positioning point of view, one is a public welfare first aid equipment used in public places, and the other is a special medical first aid equipment in the hospital.
Common faults and solutions of defibrillation monitors
Fault 1: The main functions do not respond after powering on (for example: the monitor screen is black, defibrillation is not possible, and recording is not possible).
Analysis: The above phenomena are mostly caused by low-voltage power supply problems. If it still works with batteries, it's usually an AC/DC circuit problem. If you can use AC power but not the battery, the battery may be undercharged or invalid. Some defibrillation monitors can only use batteries, and this battery has a capacity indicator, so the operator can easily judge the battery capacity.
Maintenance: Medical staff cannot eliminate problems with the low-voltage power supply itself and can only be repaired by engineering and technical personnel.
Fault 2: The monitor only displays a straight line and no ECG (generally referred to as electrocardiogram) display.
Analysis: There are many reasons for this situation. First, the electrodes are in poor contact with the human body or fall off; second, the ECG threshold is improperly set; third, there are breakpoints in the lead wire; fourth, the circuit failure of the monitor itself, etc. If there is no ECG display and the ECG waveform cannot be recorded, the fault is usually caused by the signal operation circuit or human operation, or the recorder itself may be faulty; if there is no ECG display but the ECG waveform can be recorded, it is mostly a fault in the display circuit. , and it is a non-human operation failure.
Maintenance: It needs to be solved by engineering and technical personnel.
Fault 3: The monitoring function and recording function are normal, but defibrillation cannot be performed or the electric shock cycle speed is very slow.
Analysis: This phenomenon is generally not caused by human operation, but by a fault in the high-voltage charging and discharging circuit or a problem with the energy storage component itself. If the electric shock is normal but the charging speed is slow, it is mostly due to a fault in the charging circuit; if it can be charged but cannot deliver an electric shock, there is a problem with the discharge circuit.
Fault 4: During use, functional disorders are encountered, buttons do not work, parameters cannot be set and changed, etc.
Analysis: This situation is mostly caused by a failure of the central control unit (also known as the motherboard or motherboard), and it is mostly a hard fault.
Maintenance: You can only contact the company or manufacturer for replacement.
Fault 5: The screen display waveform is disordered, characters are jittering, etc.
Analysis: The defibrillation monitor itself has taken shielding measures and has certain anti-interference capabilities. However, high-frequency medical equipment, cellular phones, information technology equipment, and radio/television transmitting systems can sometimes affect the device's monitored defibrillation capabilities.
Maintenance: It is necessary to determine the source of interference as soon as possible and take corresponding measures to ensure the normal use of the equipment.
Precautions for using defibrillator monitor
(1) Defibrillation monitors are not ordinary monitoring equipment and must be operated by specially trained and qualified medical personnel. Otherwise, the resuscitation of cardiac arrest patients and the rescue opportunities of critically ill patients will be delayed, or other accidents may occur.
(2) Currently, new defibrillation monitors are equipped with AED (automated external defibrillation) function. It is intended for use by medical personnel trained in basic life support techniques, including how to use an AED. Manual operating mode should be used by emergency medical personnel trained in advanced cardiac life support techniques.
(3) Improper use of the defibrillation function may cause injury to relevant personnel. Therefore, no one should touch the patient or any equipment connected to the patient (including the operating table or movable hospital bed) during defibrillation.
(4) The power cord of the defibrillation monitor must be single-phase three-wire, that is, the ground wire must be connected and must be properly grounded. During defibrillation, other medical electrical equipment that is susceptible to defibrillation damage should be removed. In addition, two defibrillators cannot be used at the same time to avoid leakage current exceeding the limit value.
(5) During defibrillation, the defibrillator's hands should not touch the edge of the paddle electrode to avoid injury to himself.
(6) Failure of the defibrillation monitor requires engineers with corresponding professional and technical levels to perform maintenance, and after maintenance, it must be verified by a professional holding a metrology verification certificate issued by the state or the military before use, because the defibrillation monitor can be used It is a medical device subject to strong inspection.
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