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Remote Operation
5
Transcutaneous Pacemaker Remote Setup and Testing
qualitative test based upon the criteria stated in the main product specification
document.
UNDERDRIVE=nn
The Analyzer computes an underdrive (lower) ECG signal rate based upon the
earlier measured pacemaker pulse rate. A two-digit number (nn) represents the
percentage that ECG signal is lower than the measured pacemaker pulse rate.
(Example: With a measured pacemaker pulse rate of 60 PPM and the
following underdrive command of UNDERDRIVE=20, a computed ECG
signal rate of 48 BPM is generated.) The pacemaker will either PASS or FAIL
this qualitative test based upon the criteria stated in the main product
specification document.
SETTEST=RFRACT
The Analyzer begins the refractory test by measuring the pacemaker pulse rate;
if it is ZERO, the Analyzer transmits RATE=000 and will not start the test
until a pulse rate is detected. The paced refractory period is first computed and
then reported in the following format: PRP=XXX mS. The sensed refractory
period (SRP) is computed and reported in the following format: SRP=XXX
mS.
Note
This reported data has three-digits and no displayed decimal point.
SETTEST=SENSE
The demand sensitivity test can run with one of three different waveforms:
square, triangle, and sine-squared. Set the test to SENSE, then select the
desired waveform for the test.
SENSE=SQU, nnn.nn
SENSE=TRI, nnn.nn
SENSE=SSQ, nnn.nn
SENSE=HSN, nnn.nn
The "nnn" represents the width selection (mS) of the sensitivity test waveform.
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