D185 Mk.IIa MultiPulse Stimulator: The Complete Solution for Intraoperative MEP Monitoring
The D185 Mk.IIa from Digitimer represents a technological advancement in neuromonitoring stimulation, designed for intraoperative monitoring of motor evoked potentials (MEPs) through transcranial electrical stimulation. This technique is widely used during complex surgical procedures, especially those involving the spinal cord or aorta, to ensure the integrity of motor pathways. By delivering short, targeted trains of electrical pulses, the D185 Mk.IIa can generate high-amplitude MEPs even under standardized general anesthesia, allowing for easier and more accurate clinical interpretation by the neurophysiologist.
This innovative device stands out for its ability to integrate smoothly into any existing monitoring system without the need for replacement. It is designed to meet the demands of medical professionals with intuitive and customizable features. Front panel polarity selection, multiturn stimulus voltage control, and external adjustment of triggering characteristics make the D185 Mk.IIa highly flexible. It also offers enhanced immunity to mains frequency interference through built-in filtering circuitry, ensuring a clean and reliable signal.
The stimulator delivers an isolated square waveform of 50 microseconds, adjustable up to 1000 volts, with a maximum current of 1.5 amps and a fast current rise time (0.1 A/μs), making it a precise and powerful tool. Although it can produce high output voltage, the short pulse duration keeps the total energy within safe limits. An automatic protection system monitors the cumulative stimulus charge and disables output in the event of overload, ensuring patient safety.
Stimulus pulses can be triggered via front panel button, optional footswitch, or external electrical signal, enabling perfect synchronization with other monitoring equipment. A digital display shows the set stimulus voltage and the peak current reached during the first pulse of the train in real time. The D185 Mk.IIa also provides an isolated output signal for recording the stimulation current waveform.
A restricted-access special mode enables conventional peripheral nerve stimulation and custom stimulus timings, expanding the device's range of applications. Its configurable multipulse stimulation mode (1 to 9 pulses with intervals adjustable from 1.0 to 9.9 ms) gives it great operational flexibility.
The D185 Mk.IIa is compact, durable, and easy to use in surgical environments. It is a global reference for high-risk neurological procedures.
