Including Normal Battery Depletion – This curve includes devices that have reached at least 80% of expected longevity. This curve is most representative of clinical performance and how long the device will last.
Excluding Normal Battery Depletion – This is the malfunction free survival curve.
Longevity estimates based on the following device usage.
Pacing Mode VVI;
Ventricular Lower Pacing Rate 60ppm;
Ventricular Pulse Width 0.4ms;
Ventricular Pulse Amplitude 3V;
Ventricle Impedance 510ohms;
Ventricle Sensing Rate 70bpm;
EGM prestorage OFF;
Optivol ON;
Charging frequency assumes maximum energy charge and includes therapy shocks and capacitor formation.
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Distribution Data
US Market Release
2008-09-15
CE Approval Date
Registered USA Implants
19672
Estimated Active USA Implants
2992
Normal Battery Depletions
2141
US Market Release
2008-09-15
CE Approval Date
Estimated WW Distribution
20485
Normal Battery Depletions
2148
Malfunctions (USA)
Therapy Function Not Compromised
35
Battery
14
Electrical Component
10
Possible Early Battery Depletion
8
Software/Firmware
2
Other
1
Therapy Function Compromised
17
Battery
9
Electrical Component
6
Possible Early Battery Depletion
1
Software/Firmware
1
Malfunctions (WW)
Therapy Function Not Compromised
36
Battery
14
Electrical Component
10
Possible Early Battery Depletion
8
Software/Firmware
2
Other
2
Therapy Function Compromised
18
Battery
10
Electrical Component
6
Possible Early Battery Depletion
1
Software/Firmware
1
EOS Indication
The Prolonged Service Period (PSP) is the time between the RRT and EOS. The PSP is defined as 3 months assuming the following conditions: 100% VVI pacing at 60 min-1, 2.5 V RV pacing amplitude; 0.4 ms pulse width; 600 Ω pacing load; and 6 full-energy charges. The EOS may be indicated before the end of 3 months if the device exceeds these conditions.
Recommended Replacement (RRT)
Battery voltage less than or equal to 2.63V on 3 consecutive daily automatic measurements.