ToFscan is a neuromuscular transmission monitor for the quantitative and objective monitoring of the neuromuscular blockade and the patient’s reversal.

Three-dimensional accelerometry
A realistic and complete measurement of the evoked muscle responses is achieved with the 3D accelerometry technology. The user obtains objective results for the selected quantitative stimulation modes. ToFscan is the most reliable way to ensure the absence of residual neuromuscular block.

Suitable for all practices
ToFscan has a range of specific sensors to monitor different sites that do not require any calibration. The ergonomic shape of the sensors makes the measurements reliable while facilitating the work of placing them by the operator.

Simple and ergonomics
While integrating innovative technology the ToFscan is simple to use.
Its operation both on battery and mains makes it autonomous, mobile and usable in situ.
Its fixing clamp enables it to be optimally positioned and protects it against the risk of falling. The general design, the screen and the one wheel-button selection makes the ToFscan user-friendly and easy for anyone to handle. The ATP mode ensures a simplified and continuous monitoring of the neuromuscular blockade, from induction to complete reversal of the patient in an automatic and secure way by combining TOF and PTC.


IDMED has developed a whole range of sensors to fully cover medical practice in terms of monitoring neuromuscular block and recovery.
All the ToFscan sensors make use of three-dimensional accelerometry for the actual measurement of movements with advanced accuracy and to dispense with any calibration process.

3D hand sensor
  • Intuitive to install
  • Reusable
  • Easy to clean

Single-use 3D hand sensor

  • Control of distance interelectrode
  • Avoid cross-contamination
  • Soft touch: Smooth on the patient’s skin

3D eyebrow sensor

3D foot sensor

3D pediatric hand sensor

3D small pediatric hand sensor


Technical data


  • TOF (Train Of Four)
  • Automatic TOF
  • ATP (Automatic TOF-PTC)
  • PTC
  • DBS (3.3, 3.2)
  • Single Twitch (0,1 ; 1 Hz)
  • Tetanus 50 Hz

(3D accelerometry)

  • TOF mode : T4/T1
  • TOF mode : T4/Tref
  • TOF mode : count
  • PTC mode : count
  • DBS mode : count


  • Three-dimensional accelerometer sensor
  • Adjustable stimulation current (20-60 mA)
  • Automatic switch-off
  • Battery and mains operated
  • Audio message (can be switched off)
  • Fixing clamp for bracket
  • No calibration required


  • EN 60601-1 (Medical Electrical Equipment)
  • EN 60601-1-2 (EMC)
  • 2A CE Class (CE 0459)
  • FDA Approved 510k

Eco-friendly company

We are an
eco-friendly company

Open ended choice of
disposable or reusable material


Short production


Comparison of the TOFscan and the TOF-Watch SX during Recovery of Neuromuscular Function

Murphy GS, Szokol JW, Avram MJ, Greenberg SB, Shear TD, Deshur M, Benson J, Newmark RL, Maher CE.

The TOF-Watch SX™ accelerometer requiring initial calibration has been compared to the TOF-Scan™, a new TOF monitor with a preset stimulation intensity of 50mA not necessitating calibration. The study demonstrated a good agreement between the TOF-Watch SX with calibration and preload application and the uncalibrated ToFscan throughout all stages of neuromuscular recovery.
TOF-Scan™ has been developed that requires minimal setup for intraoperative use and can be used at any time to monitor a patient whether having received NMBAs (Neuromuscular blocking agents), or not. Their findings showed that the ToFscan may be used in clinical practice to establish the presence or absence of residual muscle weakness before tracheal extubation.


2018, the American Society of Anesthesiologists, Inc. Wolters Kluwer Health, Inc. All Rights Reserved. Anesthesiology 2018; Anesthesiology. 2018 Nov;129(5):880-888. doi: 10.1097/ALN.0000000000002400. PMID: 30130260.

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Our product range market availability differs for each country. Please contact us to know which product is available in your country.

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+33 (0) 4 91 11 87 84



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