Pulse Width
The duration of each electrical pulse in microseconds, a key programmable parameter in neurostimulation devices.
Full Definition
Pulse width refers to the temporal duration of individual electrical stimulation pulses, typically measured in microseconds (μs). Along with amplitude and frequency, pulse width is one of the three fundamental parameters that define the characteristics of electrical stimulation in neuromodulation devices. Shorter pulse widths (50-200 μs) tend to activate larger nerve fibers preferentially, while longer pulse widths (300-1000 μs) may recruit smaller fibers and can be more energy-efficient. Clinicians adjust pulse width to optimize therapeutic effects while minimizing side effects and battery consumption in implantable devices.
Usage
Usage note: Express in microseconds (μs); avoid confusion with pulse rate or frequency.
In Context
- "Increasing the pulse width from 210 to 450 microseconds improved pain coverage without increasing paresthesia." — Programming notes
- "The device specifications indicate a programmable pulse width range of 60 to 500 μs." — Technical manual