Performing A Pacer Asynchronous Test - Fluke Biomedical Impulse 6000D User Manual

Impulse 6000D, 7000DP
Users Manual
Press the softkey labeled Brand to activate the brand list
and scroll through the list using G or H. When the correct
brand is displayed, enter the selection in one of three
ways. Press the softkey labeled Brand, press one of the
other two setup function softkeys (Load or Input Jacks)
or press the softkey labeled Done.
The load the pacer is working into through the Analyzer's
pacer inputs is set through the Load softkey. If the load
value needs to be changed, press the softkey labeled
Load and then use G or H to select a value between 50
and 1500 Ω in 50 Ω steps. Set the load value by pressing
the Load softkey again, press one of the other two pacer
variable softkeys, or press the softkey labeled Done.
The load value is only selectable when the pacer
input selection is set to input jacks. Only a 50
load is available when the input selection is set to
Defib.
The third pacer variable is the selection of the jacks where
the pacemaker has been attached to the Analyzer. The
input jacks softkey toggles between two settings: Input
Jacks or Defib. The Input Jacks selection monitors the
jack just to the left of the function and setup buttons. When
Defib is selected, the Analyzer monitors the pacemaker
through the defibrillator jacks.
14
Note
Ω
When all three pacer setup variables are set to their
desired values, press the softkey labeled Done. The
Analyzer begins to monitor the pacer signal through the
selected input jacks. When the pacer signal is detected
the display indicates the pacemakers pulse rate, pulse
width, energy, and amplitude. In addition, pacer test
function labels appear above the softkeys indicating the
Analyzer is ready to perform one of the pacer tests. See
Figure 12.
Figure 12. Displayed Pacer Parameters

Performing a Pacer Asynchronous Test

This qualitative test verifies the continuous (or non-
demand) mode pacemaker's ability to interact with a
simulated ECG signal. The Analyzer first measures the
pacemaker's applied pulse rate then computes
"underdrive" and "overdrive" rates for the simulated ECG
signal. Initially, the "underdrive" rate is 85 % of the applied
pacemaker rate and the "overdrive" rate is 115 % of the
applied pacemaker rate.
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