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RPS mini
Patient positioning for IGRT

The RPS Mini upgrades existing radiotherapy couches with 6DoF precision for high precision treatments. Its ultra-flat design fits seamlessly with standard immobilization systems, enabling submillimeter alignment right before irradiation. Perfect for upgrading basic 3 axis tables, it boosts accuracy, streamlines workflows, and brings image-guided precision to every treatment session.

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200 kg

Patient weight

0.2 mm

Accuracy

+/-3°

Angle correction

3 Types

Board options

Why Standard 3-Axis Systems limit OEM competitiveness in Radiotherapy

Modern radiotherapy demands sub-millimeter precision and workflow flexibility. Yet many LINAC setups still rely on 3-axis couches that restrict positioning capabilities and integration potential.

The following challenges illustrate why these limitations can affect system performance, market positioning, and clinical versatility for OEMs.

Limited Motion Control for Advanced Treatments

Standard couches offer only translational and vertical movement.
Without angular correction (pitch, roll, yaw), precise isocenter alignment in stereotactic or non-coplanar beam setups becomes difficult – reducing the LINAC’s suitability for high-precision applications.

Constrained Integration with Imaging and Guidance Systems

3-axis positioning limits real-time correction after image verification (e.g. CBCT).
This restricts compatibility with adaptive workflows and image-guided radiotherapy (IGRT) concepts that are now expected by clinics investing in premium systems.

Reduced Appeal in Competitive Tenders

As clinical centers increasingly demand 6DoF capability for new installations, LINAC systems without it are harder to differentiate.
Lack of motion correction options can make an OEM’s product appear less future-ready and less aligned with emerging treatment standards.

High Upgrade Costs and Downtime

Retrofitting standard tables often requires mechanical redesign or software adaptation within the LINAC architecture.
This increases engineering effort, slows time-to-market, and raises system costs – limiting flexibility in responding to new clinical requirements.

Advantages and Benefits

The RPS Mini overcomes the limitations of legacy treatment tables with integrated 6DoF correction for real-time alignment after CBCT imaging. It upgrades existing LINAC systems without major modifications, enabling submillimeter positioning, consistent geometry, and reproducible precision in stereotactic brain radiotherapy.

  • Submillimeter 6DoF correction after Cone Beam CT verification
  • Compact 17 cm design for seamless integration into existing couches
  • Fully compatible with standard immobilization masks and baseplates
  • Real-time isocenter alignment for stereotactic and image-guided workflows
  • Simple plug-and-play installation for clinics and OEMs
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How You Benefit

Submillimeter correction of multiple brain metastases

Ensures high-precision stereotactic radiotherapy by enabling 6DoF positional correction directly after Conebeam CT acquisition via XVI imaging.

Universal compatibility with leading immobilization systems

Supports various carbon baseplates and thermoplastic masks through an adaptable indexing interface – ideal for modular OEM configurations.

Enhanced outcomes in stereotactic treatment

Improves targeting accuracy, reduces side effects, and increases treatment success rates in IGRT through integrated motion control.








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    Get in Touch
    Upgrade Your Couch System with 6 Degrees of Freedom

    Contact us to learn how to integrate the RPS Mini for submillimeter correction and precise patient alignment in stereotactic and image-guided radiotherapy.

    • Converts existing tables into 6DoF-capable platforms
    • Ideal for treatment with submillimeter precision
    • Over 30 years of OEM and clinical integration experience

    +49 8234 966 38 41

    info@gkteso.com

    Seamless Integration
    into LINAC and Stereotactic Radiotherapy Workflows

    The RPS Mini integrates effortlessly into existing radiotherapy environments and connects directly with standard LINAC systems. Its modular 6DoF platform is compatible with immobilization devices and carbon baseplates from Orfit, CQ Medical, 3C, IT-V, and Macromedics. The ultra-flat 17 cm design enables easy installation on current treatment tables without mechanical or software modification.

    Fully MDR-compliant and ISO 13485 certified, the RPS Mini supports image-guided and stereotactic radiotherapy workflows, including CBCT-based verification and fractionated treatment protocols. It ensures submillimeter reproducibility and stable geometry across all fractions, making it the ideal upgrade solution for OEMs seeking to enhance precision without redeveloping their complete LINAC platform.

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    Our Applications
    for Advanced Radiotherapy

    Precise positioning is vital in stereotactic brain radiotherapy to ensure accurate dose delivery and minimize exposure to surrounding structures. The RPS Mini enables fine 6DoF correction directly after CBCT verification, making it ideal for clinics upgrading legacy LINAC systems.

    • Submillimeter correction after Cone Beam CT imaging
    • Compatible with all standard immobilization boards and masks
    • Consistent geometry for fractionated brain treatments

    Stereotactic radiotherapy

    Surface guided Radiotherapy

    Brain radiotherapy

    Fractionated radiotherapy

    Radiotherapy mask

    Learn more about our projects

    Discover how gKteso’s positioning solutions are applied in advanced radiotherapy systems worldwide. From prototype integration to clinical implementation, our projects demonstrate precision engineering in real treatment environments. Learn how we collaborate with OEM partners to shape the next generation of radiotherapy technology.

    Read in our blog

    Learn more about …

    RPS Mini

    Intracranial positioning accuracy for CBCT-based workflows

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    Learn more about …

    Patient Positioning Systems by gKteso: Tailored for modern radiotherapy environments.

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    Learn more about …

    RPS Base

    Real-time 6DoF positioning for LINAC RT workflows.

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    Schedule an appointment now!

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    Frequently Asked Questions

    How can OEMs and clinics upgrade standard 3-axis radiotherapy tables to 6DoF capability without costly mechanical redesigns?
    The RPS Mini offers a simple plug-and-play solution that converts existing 3-axis couches into high-precision, 6DoF-capable platforms without requiring major mechanical or software modifications to the LINAC architecture. Its ultra-flat 17 cm design allows for seamless integration on current treatment tables, significantly reducing engineering efforts, costs, and system downtime for OEMs. This compact add-on enables fine patient alignment within seconds right before irradiation, providing an affordable way to make legacy systems future-ready and competitive in tenders.
    To ensure universal clinical versatility, the RPS Mini features an adaptable indexing interface that is fully compatible with standard immobilization masks and carbon baseplates from leading manufacturers like Orfit, CQ Medical, 3C, IT-V, and Macromedics. It supports three distinct board options to smoothly accommodate diverse modular OEM configurations and specialized patient setups. This open hardware compatibility allows centers to upgrade their positioning accuracy to 0.2 mm without forcing clinics to replace their entire existing inventory of legacy thermoplastic masks or vacuum bags.
    The RPS Mini acts as a high-precision foundation for advanced IGRT by delivering submillimeter 6DoF positional corrections directly after Cone Beam CT (CBCT) acquisition via XVI imaging. It provides a +/-3° angular correction range across pitch, roll, and yaw axes to correct geometric misalignments immediately before treatment. This real-time isocenter alignment ensures exceptional targeting accuracy and consistent geometry across fractionated brain treatments, which is vital for minimizing exposure to surrounding critical structures.
    Engineered for heavy-duty clinical use, the RPS Mini features a highly robust structure that easily supports a patient weight capacity of up to 200 kg. Despite its ultra-flat 17 cm profile, the robotic platform achieves a submillimeter positioning accuracy of 0.2 mm. This space-optimized mechanical design guarantees maximum stability and geometric reproducibility during complex stereotactic radiotherapy and surface-guided radiotherapy (SGRT) workflows.
    The RPS Mini is manufactured under a strict ISO 13485 certified quality management system, drawing on over 30 years of specialized OEM and clinical integration experience. The entire platform is fully compliant with the EU Medical Device Regulation (MDR 2017/745), providing a legally secure hardware foundation for independent system integrators. This comprehensive regulatory package minimizes certification barriers, accelerates your overall system’s time-to-market and satisfies rigorous clinical audits efficiently.

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