Defibrillation monitor daily maintenance and fault analysis processing (1)

I. defibrillation monitor general structure

Defibrillation monitor consists of low-voltage power supply (AC/DC converters, battery), monitor, energy storage, conversion, defibrillation, recording five modules.

It is portable, the smallest only 1.5kg larger only 4 ~ 5kg.

2. use and maintenance FAQ

Defibrillation monitor due to their function than ordinary monitor, therefore, in the maintenance of the problems encountered is correspondingly increased, some are caused by hardware device itself, there is a human-caused by improper operation.

The main issues and solutions for:

1. low voltage power supply (or battery)

Defibrillation monitor mostly AC, DC dual use use AC power, the machine automatically converted to the internal AC/DC, and at the same time to the battery.

When no AC power or out to first-aid, you can use the battery. Battery capacity, wardship or defibrillation times, general user manual are clear.

Phenomenon: the main function does not respond after (for example: monitor black screen, defibrillation, you cannot record).

Judgment and maintenance: the above phenomenon for low voltage power supply problems.

If the use of batteries can work, usually AC/DC circuits. If you can use the AC power and battery can not, there may be insufficient or battery charging. Some defibrillation monitor can only use the batteries, and this type of battery has a capacity indicator, the operator can easily determine the battery capacity. Low-voltage power supply problems, health care workers, cannot be ruled out only by technical personnel maintenance.

2. monitor or recorder questions

Phenomenon: defibrillation monitor common another problem is the monitor only displays a straight line, no ECG display.

Judgment and maintenance: This causes more, one electrode and the human body is bad or shedding; the second is improper ECG threshold; the third is the lead line has a breakpoint, and monitor their own circuit failure, etc.

If neither ECG display, also can not record ECG waveform, failure by operational circuit in the signal prior to, or caused by human action, or the logger itself may also have trouble; if no ECG display but can record ECG waveform, then to monitor circuit failure, and non-human action failed, the engineering and technical personnel to find a solution.

3. defibrillation units problem

Phenomenon: monitoring function, records are good, but cannot make a defibrillation shock, or charging-cycle is slow.

Judgment and maintenance: this phenomenon is not caused by human actions, but high pressure charging and discharging circuit fault or storage component itself.

If a shock is only normal, slow charging more for charging circuit fault; if rechargeable power but not carrying out a lightning strike, the discharge circuit. Energy storage devices (high-voltage capacitor) damage is rare.

4. signal processing operations unit (master)

Phenomenon: during use, dysfunction, key does not work, parameters cannot be set and changed.