OSYPKA PACE 203H, Instructions For Use Manual

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PACE 203H – Instructions for Use
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(–, black) terminal of the corresponding
channel on PACE 203H. The proximal
pole is then connected to the indifferent
(+, red) terminal.
When using heart wires, the connection
is arbitrary, since both electrodes are
affixed in the myocardium. The connec-
tion may be selected to obtain the best
sensing and stimulation parameters.
When a stimulus is delivered, the current
flows from the negative to the positive
electrode, and causes a myocardial de-
polarization and in turn leads to a heart
muscle contraction.
Unipolar
: When using a unipolar lead, it
is connected to the different (–, black)
terminal of the corresponding channel of
PACE 203H. In order to close the circuit
and allow a stimulus, an indifferent
electrode must be connected to the in-
different (+, red) terminal of the corres-
ponding channel of PACE 203H. This
electrode must have a large surface and
must be attached subcutaneously.
If unipolar stimulation is given in the
atrium as well as in the ventricles, one
indifferent electrode is sufficient. The in-
different terminals of all channels can be
connected to each other.
Warning
: The unipolar configuration is
more susceptible to external noise, as
compared to the bipolar configuration.
9.16.3 Connecting the Leads
PACE 203H must be turned off while the
stimulation leads are connected to it.
Warning
: While the leads are being
inserted into the patient, and PACE
203H is connected, continuous ECG
monitoring is mandatory. For emergency
situations, a defibrillator must always be
in a ready-to-use state. The user must
ensure that all devices in the vicinity of
the patient are properly grounded.
Warning:
Before handling the pace-
maker, the patient cable, or the indwel-
ling stimulation lead, the electrostatic
potential between user and patient must
be equalized.
The stimulation leads provide a direct,
low-resistance current path to the heart.
Therefore, it is absolutely mandatory that
the connector plug is not touched with
bare hands or can come in contact with
electrically conductive or wet surfaces.
All possible static electricity sources
must be kept away from the stimulation
system.
The user must follow the steps described
below when connecting a stimulation
lead to PACE 203H:
1. Turn off PACE 203H. Open the
collets (see Figure 10)
2. If a patient cable is used, this cable
must be connected first to PACE
203H, before the stimulation lead is
connected to the patient cable. Con-
nect the ventricular pacing leads, or
the corresponding extension cable,
to the ventricular output terminals of
PACE 203H. Connect the atrial