Defibrillator section, Respiration section – Fluke Biomedical medSim 300B User Manual

Page 19

Chapter Title

medSim 300B Instrument Specifications

1-7

Pacemaker Amplitude

2 mV steps from -20 mV to +20 mV and settings of ±50,

±100, ±200, ±500, and ±700 mV

Accuracy is 10 % of setting ±0.2 mV

Pacemaker Width

0.1, 0.2, 0.5, 1.0, and 2.0 ms

Accuracy is 5 %

Both "amplitude" and "width" have manual and auto-

stepping modes. Auto-step time interval is 6 seconds.

Pacemaker Input

The minimum pulse amplitude is ±0.1 mA or ±1.5 V

The input impedance is 15 ke

Defibrillator Section

The simulator has three training scenarios each with a preprogrammed series of ECG

waveforms that require clinical intervention with a cardiac defibrillator. The operator

interacts with these scenarios by either manually selecting functions on the simulator

keyboard, or inputting an attenuated defibrillator discharge signal through the "SYNC"

input. This stimulus can be generated by discharging a defibrillator into a Fluke

Biomedical defibrillator analyzer. Just connect the analyzer's 1000:1 oscilloscope output

to the simulator's "SYNC" input to automatically sequence the ECG waveforms.
Emergency 1:

ECG starts normally, then after 2 PVCs (R on T) it

changes to ventricular fibrillation. Defibrillation

converts back to normal.

Emergency 2:

ECG starts normally, then changes to ventricular

tachycardia, and then to ventricular fibrillation.

Defibrillation converts back to normal.

Elective Cardioversion:

ECG shows atrial fibrillation. A properly timed

defibrillation pulse converts back to normal. A late

defibrillation pulse causes ventricular fibrillation. The

cardioversion time window is ±100 ms from the R-

wave peak.

"SYNC/A PACE" Input Level: A positive voltage transition through ±0.4 V triggers

this input. Maximum voltage is ±35 V and input

impedance is approximately 15 ke.

Respiration Section

Output Configuration:

The output configuration is Lead I or II/RL-LL

Baseline Impedance:

500, 1000, 1500, and 2000 e

Accuracy is 5 %

Delta Impedance:

0, 0.1, 0.2, 0.5, 1.0, and 3.0 e.

Accuracy is 10 %

Normal Physiological Rate:

15, 20, 30, 40, 60, and 120 BrPM

Accuracy is 5 %

Apnea:

Off, momentary, continuous, 12 s and 32 s

Ratio:

5/1, 4/1, 3/1, 2/1 and 1/1 (inspiration/expiration)

Baseline Shift:

The delta impedance is reduced to 1/6 and shifted to