Xavant
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.

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. Supports HL7 and FHIR. Real-time data transfer to your EMR, traceable 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%1 when neuromuscular blocking agents are used without quantitative monitoring.2
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.

The standard

What the guidelines recommend

The Association of Anaesthetists recommends quantitative neuromuscular monitoring whenever neuromuscular blocking drugs are given, continued until a train-of-four ratio above 0.9 is confirmed.3 The European Society of Anaesthesiology and Intensive Care recommends the same threshold, measured quantitatively at the adductor pollicis.4

The Stimpod NMS450X+ measures that ratio objectively and records it, so extubation rests on a number rather than an estimate.

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 reduces the need for manual transcription. NMT data flows directly from the Stimpod to your hospital network: traceable and 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. CE marked, Notified Body 1639 (SGS Belgium).

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

References

  1. Murphy GS, Brull SJ. Residual neuromuscular block: lessons unlearned. Part I: definitions, incidence, and adverse physiologic effects of residual neuromuscular block. Anesthesia & Analgesia 2010;111(1):120–128. doi:10.1213/ANE.0b013e3181da832d Back to the text
  2. Rodney G, Raju P, Brull SJ. Neuromuscular block management: evidence-based principles and practice. BJA Education 2024;24(1):13–22. doi:10.1016/j.bjae.2023.10.005 Back to the text
  3. Klein AA, Meek T, Allcock E, et al. Recommendations for standards of monitoring during anaesthesia and recovery 2021: Guideline from the Association of Anaesthetists. Anaesthesia 2021;76(9):1212–1223. doi:10.1111/anae.15501 Back to the text
  4. Fuchs-Buder T, Romero CS, Lewald H, et al. Peri-operative management of neuromuscular blockade: A guideline from the European Society of Anaesthesiology and Intensive Care. European Journal of Anaesthesiology 2023;40(2):82–94. doi:10.1097/EJA.0000000000001769 Back to the text