Stimpod NMS450X+

AMG and EMG in one handheld unit

The only quantitative NMT monitor that switches between acceleromyography and electromyography at the point of care. No calibration, no baseline period. Fully AoA 2021 compliant.

Evaluate in your theatre
Clinical capability

Quantitative monitoring designed for your workflow

One device. Two technologies. Fits any theatre setup.

No baseline required

Apply the electrode, press start, and you are monitoring. Quantitative TOF readings appear from the first stimulus with no baseline period, no drift, and no recalibration mid-case.

AMG and EMG in one device

Switch between acceleromyography and electromyography at the point of care. AMG for open-arm cases where cost matters. EMG for tucked-arm, robotic, or laparoscopic setups.

EMR integration

The optional X-Link module connects directly to your hospital network. HL7 and FHIR compliant. Real-time data transfer to your EMR, timestamped and audit-ready.

TOF through to recovery

From single-twitch checks through to continuous Train-of-Four monitoring. Whether you're a twitcher or a titrator, the Stimpod adapts to your practice.

~40%
Residual neuromuscular block (Train-of-Four ratio <0.9) remains common; large series report incidences approaching 40% when neuromuscular blocking agents are used without quantitative monitoring. Murphy GS, Brull SJ. Anesth Analg. 2010;111:120–8; Rodney G et al. BJA Educ. 2024;24:13–22.
Sensor selection

Choose the sensor that fits the case

One device, two monitoring technologies. Select based on surgical setup and clinical need.

Tucked arm
EMG electrode applied along the arm to the hand
EMG electrode
Robotic & laparoscopic surgery

The patented flexible electrode wraps around the hand, maintains adhesion during long procedures, and provides closed-circuit confirmation even when the patient is repositioned. Single-use. Adult and paediatric sizes.

Open arm
AMG accelerometer sensor on the thumb with arm electrodes
AMG sensor
Cost-sensitive & high-turnover surgery

The reusable thumb accelerometer provides reliable TOF monitoring for standard cases. Quick to apply, no consumable cost per case. Monitor at the ulnar nerve, posterior tibial nerve, or facial nerve.

Compliant with Association of Anaesthetists 2021 and ACSA 2025 standards requiring objective Train-of-Four verification (TOF ≥ 0.9) before extubation. Supports evidence-based practice and provides the audit trail needed for accreditation.

Clinical screens

From set-up to recovery

One device, three views — signal, block, recovery.

EMG waveform screen

EMG waveform

Confirm signal quality at set-up
Quantitative TOF screen

Quantitative TOF

Monitor block depth during the case
Full-case trend screen

Full-case trend

Confirm recovery before extubation
Stimpod X-Link module mounted on an IV pole
Integration

Data that follows the patient

Direct EMR integration · HL7 · FHIR · Audit-ready

The optional X-Link module eliminates manual transcription. NMT data flows directly from the Stimpod to your hospital network — timestamped, traceable, ready for audit.

No third-party middleware required. Supports HL7, FHIR, and IHE standards.

Technical details

Specifications

Detailed information for procurement and clinical evaluation.

EMG electrode

Patented ripple design fits left or right hand, adult and paediatric. Soft dermatoid material maintains adhesion during long procedures. Peak-to-Peak and Area Under Curve detection for accurate NMT response. Continuous closed-circuit confirmation.

AMG sensor

Reusable 3-axis accelerometer. Cost-effective for high-volume settings. Monitor at ulnar nerve (hand), posterior tibial nerve (foot), or facial nerve. Rapid patient setup with immediate clinical use.

X-Link integration

Optional module for EMR connectivity. Connects directly to hospital network, with no third-party middleware. Supports HL7, FHIR, and IHE standards. Smart charging extends battery life. Flexible mounting for IV pole or permanent installation.

Device specifications

3.5″ colour touchscreen. Handheld: 174mm × 90mm × 35mm, 265g with battery. Rechargeable Li-ion, up to 40 hours continuous use. Operating modes: AUTO, TOF, PTC, SMC, DEP, ST, DB, TET. FDA approved, CE marked (1639).

View the product brochure (PDF, 6.7MB)
Next steps

See the Stimpod NMS450X+
in your theatre.

Arrange a trial or clinical demonstration with our team. We'll show you how it fits your workflow.

Get in touch