User Manual

Lumax Technical Manual 101
2.8.3.6 Third Programmable Shock Pathway
Lumax 500/540, 600/640 & 700/740 Models only
The Lumax 500/540, 600/640 and 700/740 models offer three
programmable shock delivery configurations. The defibrillation
shock pathways include a “non-active housing” shock path and a
shock paths between the ICD/CRT-D housing and either or both
shock coils when connected to a dual coil shock lead.
The Shock Configuration parameter operates independently of
Shock Polarity. So each of the pathways described below can be
reversed for delivered defibrillation/cardioversion shocks.
Table 32
outlines the current shock pathways that are available
with Lumax 500/540, 600/640 and 700/740 models.
Table 32 Lumax 500/540, 600/640 & 700/740
Programmable Shock Pathways
# Electrical Pathway
1)
RV SVC and Housing (can)*
2)
RV  SVC
3)
RV  Housing (can)
* 300/340 Models are limited to this configuration.
2.8.4 Progressive Course of Therapy
By design, the Lumax ICDs/CRT-Ds will deliver more aggressive
therapy for each successive attempt within a single detected
episode. Therefore, the device will not deliver ATP1 therapy
following ATP2 therapy, and will not deliver ATP therapy following
a high voltage defibrillation shock.
When Progressive Course of Therapy is turned ON (this is
automatically programmed ON in the Lumax 600/640 & 700/740
models), the ICD/CRT-D will always deliver a maximum energy
shock after re-detecting in an arrhythmia class with programmed
shock energy less than or equal to the previously delivered
therapy. In addition, the ICD/CRT-D blocks all ATP therapy during
the current episode if a shock has already been delivered during
the episode.