For BIOTRONIK dual coil ICD leads, the inter-coil spacing range is what?

For BIOTRONIK dual coil ICD leads, the inter-coil spacing range is what?

• A. 16-18 cm
• B. 6-8 cm
• C. 20-22 cm
• D. 1-2 cm

Answer: (A)

In dual-coil ICD leads, the distance between the two defibrillation coils is a key design factor that shapes the defibrillation vector. For BIOTRONIK dual-coil leads, the coils are spaced about 16–18 cm apart along the lead. This spacing helps create an effective electric field across the ventricles during a shock, improving the likelihood of successful defibrillation by spanning a larger part of the heart with the shock current. If the coils were much closer, the vector would be more localized and potentially less effective; if they were much farther apart, placement and lead geometry could complicate implantation and performance. So the inter-coil spacing is 16–18 cm.

In dual-coil ICD leads, the distance between the two defibrillation coils is a key design factor that shapes the defibrillation vector. For BIOTRONIK dual-coil leads, the coils are spaced about 16–18 cm apart along the lead. This spacing helps create an effective electric field across the ventricles during a shock, improving the likelihood of successful defibrillation by spanning a larger part of the heart with the shock current. If the coils were much closer, the vector would be more localized and potentially less effective; if they were much farther apart, placement and lead geometry could complicate implantation and performance. So the inter-coil spacing is 16–18 cm.