generator longevity
Expected operational lifespan of the pulse generator battery, critical for patient counseling and replacement planning documentation.
Full Definition
Generator longevity refers to the projected operational lifespan of a cardiac device's pulse generator before battery depletion requires replacement. This metric depends on multiple factors including battery chemistry, device programming, patient pacing burden, and specific manufacturer specifications. Medical editors working with device literature must understand that longevity estimates are typically provided as ranges based on different usage scenarios, and actual device life may vary significantly from initial projections based on patient-specific factors and programming changes over time.
Usage
Usage note: Distinguish from actual measured device life; always include qualifying factors when stating longevity estimates.
In Context
- "Generator longevity projections for this device range from 8 to 12 years depending on pacing burden." — Product specification document
- "Factors affecting generator longevity include lead impedance, pacing thresholds, and programmed safety margins." — Technical manual