Constant Current Design Cardiac Device Features

Overview

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