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inomed Medizintechnik GmbH

Frequently asked questions


Here you will find answers to frequently asked questions about our products and applications. We have compiled the most important information for you to help you quickly and easily. If you still have questions, we look forward to receiving your enquiry.

Show all
C2 Xplore
ISIS Xpress
ISIS Xpert
ISIS Xpert plus
ISIS IOM NeuroExplorer
ISIS Neurostimulator
IONM accessories
C3 CryoSystem
VIVA RF System
Radiofrequency ablation accessories
SUSy stereotactic system
ZD stereotactic system
RM stereotactic system
Target point simulator
ISIS MER system
MicroDrive
inomed Planning System
LG2-sEEG RF Lesion Generator
FLUOBEAM® LX
Application field: Neurosurgery
Application field: Functional neurosurgery
Application field: Pain treatment
Application field: Ablation
Medical practices

Are the electrodes internally cooled?

Yes, all STARmed electrodes in all sizes are internally cooled right up to the tip. The cooling circuit is driven by a peristaltic pump.

Are the monopolar electrodes also delivered with neutral counter electrodes?

Yes, two dispersion electrodes are included with each monopolar electrode.

Are there particularly short needle electrodes for children?

Yes, 532720 (6 mm) and 532722 (12 mm) are particularly suitable for children due to their particularly short needle lengths of 6 and 12 mm.

As a user, do I have to create my own measurement scenario or measurement protocol?

No. Each system has already more than 40 standard scenarios preinstalled for different application fields.

Can the C2 Xplore be integrated into the hospital network?

Yes, the C2 Xplore can be integrated into the hospital network via various wireless (WiFi) and wired options for data exchange, for example via an HL7 interface.

Can the ISIS Xpress be equipped with a video module (e.g. microscope video)?

Yes, it is possible to equip the ISIS Xpress with a video interface (item no.: 540013).

Can the iPS be used to visualise 3D views of the patient’s skull?

The possibility to quickly generate 3D views of the patient’s skull helps to verify target point planning for a stereotactic procedure. By projecting the stereotactic systems used, the users receive a realistic visualisation of the arrangement and effect of the trajectory planning on the system configuration.

Can the position of the ISIS Xpert plus screen be changed?

Yes, the screen height can be adjusted hydraulically to suit the users. The screen can also be rotated approximately 180° in both directions.

Do you have any questions about billing?

We will be happy to help you. 

Please send an e-mail to: info@inomed.com

Does the C2 Xplore have an internal storage?

The C2 Xplore has an internal storage.

Does the VIVA RF System display the power output?

Yes, the display shows the output power required for the ablation zone in kcal.

Does the device also work without ICG?

Yes. The device uses the natural fluorescent properties of the parathyroid tissue.

Does the device have a touchscreen display?

The C2 Xplore has a modern touchscreen display that also supports different gestures, such as screenshots or the drag & drop function.

For which application fields can RFA be used?

There are numerous established application fields. In addition to the established liver RFA, the areas of thyroid and gynaecology, for example, are receiving more and more attention.

For which applications is the LG2-sEEG RF Lesion Generator certified?

The LG2-sEEG is certified for pain and brain applications.

How are impedance changes communicated to the users?

The audio impedance makes it easier for the users to detect strong impedance changes. The current value of the tissue impedance is communicated to the users as a tone at a specific level.

How are the corresponding nerves localised during the procedure?

The target nerves can be localised using a variety of visual methods, such as X-rays, ultrasound or CT. For precise determination, the nerve is localised by electrical stimulation.

How can the RM stereotactic system be adjusted as accurately as possible?

To ensure the most accurate setting possible, the RM stereo­tactic system is fitted with verniers for the corresponding scales. The vernier enables the determination of small measurement values that can no longer be read from the main scale. To get a feel for the fine adjustment, it helps to know that a vernier scale interval corresponds to a value of 1/10 of a degree. However, to ensure easy adjustment, magnifying glasses are provided to enable the values to be read or set precisely.

How can the target point simulator be integrated into the surgical workflow?

The target and trepanation point coordinates are defined on the basis of the X-ray, CT and MRI images and converted into stereotactic coordinates using a planning software such as the inomed Planning System (iPS). With the inomed stereo­tactic systems, the coordinates obtained in this way can now be set directly on the aiming bow carriage. The prepared stereotactic system is then mounted on the target point simulator ring. The ring on the target point simulator imitates the ring on the patient’s head.

How do I activate the active stimulation artefact suppression?

Open the setup window in the MEP window and activate the active stimulation artefact suppression under Stimulator Settings.

How do I know how much power I need to set on the generator?

The size of the ablation zone depends on the length of the active tip and the power setting on the generator. For each length of the active tip, there are predefined power specifications.

How do I switch between recording and stimulation with the ISIS MER systems?

Thanks to the intelligent arrangement of the recording and stimulation contact, only one plug connection per electrode is required for MER when using the inomed MicroMacro electrode. It is very easy to switch between recording and stimulation in the software, there is no need to swap cables.

Learn more:
MicroDrive
MicroMacro electrode/Accessories

How is the starting point of chronic pain identified?

In order to identify the source of chronic pain, an infiltration is carried out before treatment with cryoanalgesia or thermolesion. If this has a positive effect, you can be sure that the cause of the pain has this point of origin.

Is functional neurosurgery internationally recognised?

Yes, functional neurosurgery is internationally recognised and supported by leading professional associations worldwide, such as the World Society for Stereotactic and Functional Neurosurgery (WSSFN) and national professional associations. Clinical studies and the prove of efficacy for specific indications have contributed to its widespread acceptance.

Is it also possible to use ICG with the device?

Yes. The device has a special ICG contrast mode to optimally display the fluorescence of the vessels and tissue on the screen.

Is it only possible to use the inomed MicroDrive on inomed frames?

No, the MicroDrive can be used on all common ring-based stereotactic systems.

Is it possible to choose different mounting positions?

Depending on the stereotactic ring used, up to six different mounting positions are possible. This allows the surgeons to select the appropriate approach that is as gentle as possible on the patients and offers flexibility in trajectory planing.

Is it possible to connect an external monitor to the device?

The device can be connected to an external monitor via a VGA interface on the back.

Is it possible to display the image of the surgical microscope on the ISIS Xpert?

Yes, the video module can be used to connect ZEISS microscopes to the ISIS Xpert. The connection is realised via an SDI cable. The microscope image can then be displayed in the NeuroExplorer software.

Is it possible to mirror the screen on a tablet?

Yes, the inoView V2 app can be used to connect a tablet to the device and mirror the screen. The app can be used for comments, for example. The tablet can be packaged with a sterile cover and be used in the sterile field of the surgery.

Is it possible to record electromyography signals in parallel?

Yes, the ISIS MER systems can easily be equipped with up to two additional ISIS Headbox EMG modules for electromyo­graphy. This expands the option for parallel recording of up to 16 EMG or EEG signals.

Is it possible to record local field potentials (LFP) in parallel?

Yes, with the ISIS LFP module it is possible to measure LFP for up to five channels in parallel to the MER recording. The inomed MicroMacro electrodes are required for this. The module also has two additional channels that can be used to record EMG signals.

Is the ISIS Neurostimulator a constant current stimulator or a constant voltage stimulator?

The ISIS Neurostimulator is a constant current stimulator.

Is the ISIS Xpress suitable for travelling?

The ISIS Xpress is stored in a handy trolley case the size of hand luggage, making it easy to transport when travelling by plane, train, bus or car.

Is the Laryngeal Electrode Select available in different sizes?

Yes. The electrode is available for tubes with an inner diameter of 6–7 mm (530855) and for tubes with an inner diameter of 7–9 mm (530856).

Is the RM stereotactic system compatible with the inomed target point simulator?

The RM stereotactic system is compatible with the inomed target point simulator. The combination with the inomed target point simulator increases safety in use. All patient-specific settings can be checked exactly before the intervention is started on the patients.

Is the SUSy stereotactic system compatible with the inomed target point simulator?

The SUSy stereotactic system is compatible with the inomed target point simulator. The combination with the inomed target point simulator increases safety in use. All patient-specific settings can be checked exactly before the intervention is started on the patients.

Is the ZD stereotactic system compatible with the inomed target point simulator?

The ZD stereotactic system is compatible with the inomed target point simulator. The combination with the inomed target point simulator increases safety in use. All patient-specific settings can be checked exactly before the intervention is started on the patients.

Is the pump for electrode cooling integrated in the generator?

The peristaltic pump is not integrated in the generator. This enables more flexibility in equipment positioning to suit the individual procedure setting.

It is possible to choose different mounting positions?

The SUSy stereotactic system can be mounted on the head ring in both lateral and anterior-posterior positions. It can also be mounted rotated by 180°.

What are the advantages of RFA compared to conventional surgery?

The patients have no scar after the application. Only a local anaesthetic is needed and the recovery time for patients is considerably shorter. As the healthy tissue can be preserved, hormone replacement is also not necessary after the procedure. The procedure can also be carried out in an outpatient setting so that the patients can go home on the same day.

What are the benefits of RFA for my clinical routine?

By adding RFA to your portfolio, you are able to treat a wide range of patients. This minimises patient migration and also contributes to a high level of patient safety, as they are monitored and treated in one facility.

What are the differences between the ISIS Xpert and the ISIS Xpert plus?

The differences are the equipment and the software packages included in the standard versions.

What is the maximum number of channels that can be recorded with the ISIS Xpress?

The ISIS Xpress is available in 16 CH and 32 CH versions as standard. However, the system can be upgraded to 48 channels with an additional 16 CH module.

What is the maximum pressure of the gas cylinder that can be connected to the system?

Gas cylinders with a maximum pressure of 60 bar (870 psi) may be connected to our cryo device, the C3 CryoSystem.

What mounting options does the RM stereotactic system offer?

The RM stereotactic system allows the treating neuro­surgeons to precisely reach every point in the working area of the RM system in the brain. The working area in the brain is determined by the position of the ring system. Specifically, it is possible to mount the RM system in both positive and negative orientation. The standard positive mounting can be used to access the frontal and occipital cranial regions, while the negative mounting can be used to reach the posterior fossa and pituitary gland.

What resolution does the MicroDrive offer?

With a resolution of 50 µm, the inomed MicroDrive enables the neurosurgeons to precisely position the electrodes for deep brain stimulation, with tactile feedback after each rotation. The haptic feedback (a tactile “click”) allows the neurosurgeons to “feel” when a complete rotation of the MicroDrive has been completed.

What role does stereotaxy play in functional neurosurgery?

Stereotaxy is a key technique in functional neurosurgery that enables precise interventions in the brain. The target region is precisely localised in three-dimensional space using modern imaging techniques such as MRI or CT and transferred to a stereotactic coordinate system. The intervention is then performed using a stereotactic system that ensures precise placement of the instruments.

What type of gas cylinder can be used with the C3 CryoSystem?

The C3 CryoSystem requires the use of a gas cylinder without a riser pipe.

When was the SUSy stereotactic system launched and where did the first clinical application take place?

The launch event for the SUSy stereotactic system took place in September 2023 as part of the ESSFN Congress in Stockholm (Sweden). The first clinical application of SUSy was at the University Medical Center Freiburg as part of an sEEG electrode implantation by PD Dr. Peter C. Reinacher. Further applications in other centres (DBS, thalamotomies) in other centres followed.

Which cables do I need to connect reusable monopolar stimulation probes to the ISIS systems?

Stimulation cable cable length 4 m (520027),
stimulation adaptor cable cable length 0.7 m (520077) and

SDN electrode BK 15/1000, stainless steel (533627).

Which diseases are treated in functional neurosurgery?

Functional neurosurgery treats a variety of diseases that can be treated by targeted interventions in the nervous system. The most common indications include movement disorders such as Parkinson’s disease, essential tremor and dystonia, treatment-resistant epilepsy, chronic pain and, in exceptional cases, psychiatric illnesses such as depression and obsessive-compulsive disorder.

Which electrode can be used for D-wave recording?

Electrode 530684 with two contacts or 530685 with three contacts.

Which electrode configurations are supported?

  • Monopolar 1 channel

  • Bipolar 1 channel

  • Bipolar 1 channel sEEG via sEEG Box

Which electrodes and probes should be used for specific applications?

The recommended electrodes and probes for various application examples are listed in chapter 8 of the accessories catalogue.

Which gas can be used for the C3 CryoSystem?

The C3 CryoSystem is to be used with medical-grade CO₂ (carbon dioxide) or N₂O (nitrous oxide).

Which head ring units can the target point simulator be combined with?

The inomed target point simulator (phantom) can be combined with all inomed head ring units, whether titanium ring or ceramic ring.

Which head ring units is the SUSy stereotactic system compatible with?

The SUSy stereotactic system can be used with both the titanium and the ceramic head ring.

Which imaging techniques are supported and can be processed?

CT, MRI, PET and X-ray images are supported.

Which measuring functions can be used to verify the trajectories?

The iPS is complemented by many other functions, such as measuring distances, angles and areas. For the verification of the trajectory, the images can be aligned to all typical sectional planes (sagittal, coronal, axial plane) and additionally adjusted according to the top view of the trajectory (perpendicular or probe’s eye) or along the trajectory.

Which monitoring device is best suited for which application in neurosurgery?

For complex neurosurgical interventions, e.g. supra- and intraoperative tumour resections, neurovascular surgery, spinal cord tumours and spinal stabilisation, a multimodal device from the ISIS IOM family is best suited. Depending on the working position and equipment, the ISIS Xpert or ISIS Xpert plus may be the best solution. As a portable version, the ISIS Xpress is the first choice for flexible working at different locations.

For motor mapping and awake surgery with speech mapping, the C2 Xplore Cortical is the obvious choice as a compact device with a high level of user-friendliness.

For research projects that require complex stimulation programmes, the Neurostimulator with standalone software is the perfect solution.

Which stereotactic systems is the target point simulator compatible with?

The target point simulator is compatible with all inomed stereotactic systems: SUSyRM stereotactic system and ZD stereotactic system.

Which versions of the ISIS MER system does inomed offer?

The compact design of the ISIS Headbox MER measurement and stimulation system opens up a wide range of possible configurations. We offer three basic versions that can be individually equipped with the necessary measuring systems: the ISIS MER system, the ISIS MER system compact and the ISIS MER system portable.

With which instruments is the MicroDrive compatible?

In addition to various electrodes for MER recording, different biopsy instruments and HF brain electrodes can be used on the MicroDrive.

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