Constant Current Design Cardiac Device Features


The benefits of constant current design are:

  • Adjusts pacing output voltage in response to changes in lead impedance
  • It may allow capture in a more consistent manner and can help to maintain threshold
  • More consistent capture helps ensure patient safety

How does constant current design work?

  • Provides a constant current despite variation in impedance
  • As impedance rises, voltage is increased to maintain a constant current
  • This is important because lead impedance may change acutely with the passage of time and has a dynamic nature