User manual

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Measurementtasks

 Prior to the actual measurement, get familiar with the manipulation with and the

components of the available defibrillators (such as CardioServ, GE Healthcare [3.8] and

BeneHeart D3, Mindray [3.9]) and the defibrillator analyser (DA-2006, BC Biomedical [3.7]).

During the measurements, consult all your procedures with the teacher. Work with the user

manuals [3.8] and [3.9] available at the subject’s website.

1) With the defibrillator analyzer, compare the set and the measured parameters of the

defibrillation pulse for more set ups within the range of the apparatus (at least for 5

values of energy). Compare the defibrillation pulses in different devices and make a

chart of the measured courses.

2) Measure the charging time of the defibrillator’s capacitors.

3) Set the defibrillator analyzer to the “ECG simulator” mode, and watch different pre-

programmed cardiac arrhythmias on the defibrillator’s display. Further on, switch the

analyzer into the “Cardioversion test” mode. Set up the synchronized cardioversion

mode (discharge synchronized with the closest R-wave) according to the defibrillator’s

user manual, and measure the parameters of the synchronized discharge via the

analyzer.

4) Measure the parameters and the course of the external defibrillator pulse in the

transcutaneous stimulation mode, connected to an oscilloscope via a edutools.

Compare the measured pulse parameters with the pulse parameters from sections 2)

and 3) of the measurement. For different repetitive pulse frequencies, verify the

consistency of parameters of the transcutaneous stimulation pulses for one set up of

the stimulation current size.

5) Use the electro-revisional apparatus (MEDITEST 50) to measure the leakage current

in the applied parts. Make a protocolar record on the measurements carried out and on

the safety-technical check of the defibrillation apparatus.

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Measurementprocedure

 During the measurement, be careful not to interrupt the contact between the

defibrillator electrodes and the analyzer electrodes when applying the discharge, as this

would induce a spark and damage (burn) the surface of the electrodes. Also be careful

not to have the defibrillator electrodes touching at the application of the discharge.

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