inomed

RM – the most accurate stereotactic system in the world

High-precision from Germany: The inomed RM system

The Riechert Mundinger (RM) system is the only stereotactic system on the market with three fixation points. This gives the device a very high level of stability and precision. The RM is regarded to be the most precise stereotactic system in the world and, with its unique design, provides uncompromised accuracy in stereotactic surgery.

The RM system from inomed is based on the polar coordinate principle. This concept was developed by the two well-known stereotactic experts, Prof. Traugott Riechert and Prof. Fritz Mundinger. The RM aiming arm with its probe mount delivers a high level of mechanical precision. A wide range of accessories ensure that the RM system delivers universal application for the modern stereotaxy service.

Stereotactic system offering the highest precision

The high precision of the inomed RM system was specifically developed for stereotactic interventions in functional neurosurgery. The configuration can be easily adapted for stereotactic brachytherapy. The precision and stability of the RM stereotactic system means that it is the frame of choice, particularly for interventions in functional neurosurgery.
The RM stereotactic system consists of an RM stereotactic base ring and an RM aiming arm unit. The application of the stereotactic base ring and the use of localizers for imaging are described in separate manuals (patient immobilization, localization systems). The RM target device allows the attending neurosurgeon to reach every point in the brain precisely. In order to achieve optimum results, it is a requirement that the patient's head, the position of the target and the trepanation point are taken into consideration when mounting the ring. Different mounting options can be applied both positively and negatively. The standard mount method is used for all acquisitions in the frontal and occipital region of the skull. With negative mounting of the RM, the posterior fossa and pituitary gland can be reached.

Vernier scale for accurate setting

To ensure the settings are as accurate as possible, Vernier scales are attached to the corresponding scales on the RM system. The Vernier scale allows surgeons to define small measurement units that can no longer be read on the main scale. A Vernier scale line corresponds to 1/10 of a degree. In the Vernier scale, 9° are divided into 10 equal sections. Using the Vernier scale in this way, the RM coordinate values can be adjusted precisely to decimal points (1 -, 1 -, 3, etc.). The digits after the decimal point are read from the scale line on the Vernier.

Components of the inomed stereotactic product can be adapted as part of a modular system directly on the aiming arm carriage of the RM system. Other components can also be used separately, and provide further helpful tools for the attending neurosurgeon.

Features

  • Polar coordinate system, with 5 setting parameters allowing for extremely high precision
  • Three fixation points for unmatched stability
  • Trepanation in the target direction
  • MicroDrive with depth sensor for micro-electrode recording (MER)
  • Target point verification using target point simulator
  • Artifact-free, optimized for medical imaging
  • Compatible with inomed iPS planning software

Applications

  • Deep Brain Stimulation
  • Pallidotomy
  • Thalamotomy
  • Brachytherapy
  • Stereotactic biopsy
  • SEEG depth electrodes

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