OSYPKA PACE 203H, Инструкция по эксплуатации, Страница: 31 / 139

PACE 203H – Instructions for Use
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9.5 Powering Off PACE 203H
PACE 203H is powered off by pressing
the key labeled
OFF
.
In order to prevent powering off the de-
vice by mistake, a menu (Table 8) ap-
pears in the lower menu with the
softkeys labeled
Off
and
Stand-by
.
Power-Off Menu Key No.
Off
(no storage)
1
2
Stand-by
(store data)
3
4
↑
_ 5
Table 8: Turn-off Menu
Upon selecting Off (no storage) by
pressing the corresponding softkey,
PACE 203H switches off without storage
of the actual settings, prompting the
message “Off (no storage)“.
Upon selecting “
Stand-by (store data)
”
by pressing the corresponding softkey,
PACE 203H stores the actual settings,
prompting the message, “Stand-by (store
data)”, and then switches off.
PACE 203H does not consume any
battery power in the Stand-by mode.
When PACE 203H is powered on from
the Stand-by mode, it will, after switching
on, function with these prior settings and
not with the Turn-on program.
PACE 203H switches off with a short
acoustic signal (beep).
9.6 Modes of Operation
The following terms are defined:
The
beat-to-beat interval
(a pacemaker
parameter) is the programmed interval of
a complete pacing cycle, measured in
milliseconds (ms). It is determined as the
inverse of the basic rate.
Wenckebach behavior
is always acti-
vated in atrioventricular modes incorpo-
rating atrial sensing. In case of high
spontaneous intrinsic atrial rates, the P-
V delay will be prolonged in order to
prevent high ventricular stimulation
rates. This function limits the ventricular
rate to the so-called
Maximum Tracking
Rate (MTR)
. As a consequence,
Wenckebach behavior intermittently
blocks the conduction of intrinsic atrial
beats to the ventricular chamber.
The
A-V Delay
(a pacemaker parame-
ter) is the programmed atrioventricular
pacing interval, initiated by an atrial
stimulus.
The
P-V delay
(a pacemaker parameter)
is the programmed time interval between
atrial sensing (P wave) and the ventricu-
lar stimulus. The P-V delay can be inter-
preted as a programmable conduction
delay window. It is determined by the A-
V Delay and by the Maximum Tracking
Rate (MTR).
The
A-V interval
is the measured time
interval between a sensed or paced
atrial event and the subsequent ventricu-
lar sensed or paced event. In case of
spontaneous ventricular depolarization,
the A-V interval is shorter than the pro-
grammed A-V Delay.
The
V-A delay
(a pacemaker parameter)
is the programmed ventriculoatrial inter-