BIOTRONIK Evia DR, Technical Manual

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Evia Technical Manual 89
Figure 17. VCC flow chart
SQC
CTS
CCC
y
S
ets A
V
delay to 50ms
y
F
ive paces at MaxA
CCA
mp
y
F
ive "double paces" to
evaluate polarization
Pa
ss
Fa
il
y
A
V
delay remains 50ms
y
S
tarting from MaxA
CCA
mp,
stepwise reduction of the output every 2 cycles until threshold is found with a 0.1V
resolution
y
B
ack-up pulse is emited if
NC occurs (pulse width set to 1ms)
y
Se
t Am
p = M
axACCAm
p o
r
higher
y
Repeat S
Q
C/CT
S
at next
scheduled time
y
T
hree consecutive double
failures of SQC/CTS will disable A
C
C
S
et A
m
p =
T
hr
Safety Margin
Fa
il
Pa
ss
B
eat-to-beat monitoring for
non-capture B
ack-up pulse is emitted if
NC occurs (pulse width set to 1ms) If LOC is confirmed, set A
m
p
=
MaxA
CCA
mp and perform
SQC/CTS F
usion avoidance scheme
(A
V
D
lengthening and
shortening)
Kommentar [MJ1]:
Currently Grace
is working on re-creating and updating
this figure.