gKteso Blog
Insights from the Frontlines
of Development
In this blog, we share applied knowledge from day-to-day engineering, mechatronic prototyping, and development challenges in real-world medical and industrial environments. Whether it’s a technical breakthrough in the lab, insights from international conferences, or feedback from customer site visits – each post gives you practical, unfiltered perspectives from our team.
Latest Activities
IOLC 2025: A Human-Centered Finale at the Champalimaud Foundation
Day 3 of the 9th International Oncology Leadership Conference in Lisbon delivered a powerful reminder of what truly drives progress in cancer care: people. Hosted at the iconic Champalimaud Foundation, the final sessions highlighted why innovation in oncology must remain deeply human – whether through advances in psycho-oncological support or by recognizing the essential yet often overlooked role of pharmacists in integrated cancer treatment.
Across all discussions, one message stood out clearly: meaningful impact requires global collaboration, equitable access, and a commitment to bringing science into real-world practice. With the Atlantic coastline just outside the conference walls, the atmosphere underscored the urgency and responsibility that come with shaping the future of cancer care.
Together with our partner EHMET Health, we continue to demonstrate what becomes possible when administrators, clinicians, and engineers work in a shared language – creating pathways toward more connected, accessible, and patient-centered oncology solutions.
IOLC 2025: Turning Oncology Leadership Into Real-World Impact
Earlier this month, global oncology leaders gathered in Lisbon for the 9th International Oncology Leadership Conference (IOLC 2025) to discuss a central question: How do we transform clinical needs into meaningful innovation?
The sessions covered a broad spectrum of challenges – expanding worldwide access to cancer care, accelerating cell therapy, integrating AI into workflows, and translating emerging technologies into real clinical environments. The key takeaway was clear: leadership in oncology is not defined by strategy alone. It is defined by execution, collaboration, and the ability to turn expertise into tangible results.
Together with our partner Michael Teicher from EHMET Health and our CEO Guido Kübler, we joined the conversations to listen, exchange insights, and contribute our perspective. At gKteso, we believe that bridging administrators, clinicians, and engineers is essential to driving progress.
From clinical access to OEM-ready radiotherapy technologies, we are proud to be part of the discussions shaping the future of cancer care.
Turning Complexity Into Clarity: Introducing gKteso Design as a Service
Medical technology products start with ideas – sometimes rough sketches, sometimes complex visions. With gKteso Design as a Service (DaaS), we help OEMs turn these early concepts into functional, human-centered industrial designs that are ready for real clinical environments.
Our approach begins with transforming first sketches into clear design concepts that combine usability, ergonomics, and recognizable brand identity. Through iterative concept development, we explore multiple design directions, enabling faster decision-making and more confident product strategies.
With deep medtech engineering expertise, we ensure that every design aligns with clinical workflows, regulatory expectations, and technical constraints from day one. This means your product not only looks right – it works in real-world healthcare settings.
Whether you need support across the full design workflow or seamless integration into your existing teams, we help accelerate your development process and sharpen your competitive edge.
Your idea. Your product. With gKteso.
International Day of Radiology 2025: Celebrating the Technology That Helps Us See What Matters
Today we celebrate the International Day of Radiology 2025 – a moment to recognize the essential role that imaging plays across the entire spectrum of modern medicine. From early diagnostics to precise therapy planning, radiology is the visual foundation that guides clinical decision-making every day.
At gKteso, we honor the clinicians, engineers, and researchers who continuously advance imaging technologies enabling earlier detection, more accurate targeting, and more efficient workflows. Their work shapes the future of patient care, one scan at a time.
Our own contribution lies in developing mechatronic solutions for radiotherapy and radiology that integrate seamlessly into MR, CT, and X-ray environments. These systems support imaging precision, workflow consistency, and smooth integration into OEM and clinical settings.
Imaging may be the silent guide in every treatment decision, but its impact is unmistakable. Here’s to the field that helps us see clearly and to the people who make it possible.
Celebrating International Medical Physics Day 2025: Honoring the Science Behind Precision Care
Today, on the birthday of Marie Curie, we celebrate the experts who make modern radiotherapy, imaging, and diagnostics as precise and reliable as they are: medical physicists. Their work forms the scientific backbone of high-quality cancer care – often behind the scenes, but always essential.
From enabling sub-millimeter patient positioning to validating complex dose distributions and developing advanced QA methods, medical physicists ensure that innovation becomes safe, effective clinical practice. Their contributions bridge the gap between cutting-edge technology and real-world patient care, empowering clinicians to deliver treatments with confidence and accuracy.
At gKteso, we are proud to collaborate with physicists worldwide who bring scientific rigor, problem-solving, and empathy into daily clinical routines – from the lab bench to the linac.
Today, we honor these quiet heroes whose expertise drives progress in medical science. And we celebrate Marie Curie, whose legacy continues to inspire generations of innovators shaping the future of healthcare.
Introducing gKteso Design as a Service: From Concept to Clinical-Ready Solutions
At gKteso, we’re expanding our support for OEM partners with a new offering: Design as a Service (DaaS). This service enables medical technology teams to move from early concept sketches to fully realized, clinically ready products – efficiently, precisely, and with a strong focus on usability and manufacturability.
Whether you are starting from a blank page or looking to modernize an existing system, our DaaS offering covers the complete industrial design workflow. This includes functional concept development, visual design, prototyping, ergonomics, material selection, and guidance for scalable production.
Need full end-to-end support? We can bring your entire product vision to life. Already working with internal teams or trusted partners? Our standalone design modules integrate seamlessly into your existing development process.
From cleanroom-compatible components to accessories for radiotherapy and advanced mechatronics, our engineering and design experts transform complexity into clarity. A special thanks goes to Michael Schnaus, whose creative expertise drives this new chapter forward.
Meet gKteso at ASTRO 2025 in Chicago: Advancing Precision in Radiotherapy
From image-guided patient positioning to high-precision beam shaping, engineering excellence continues to drive progress in modern radiotherapy. This September, we’re bringing our expertise to one of the field’s most influential events: the 67th American Society for Radiation Oncology (ASTRO) Annual Meeting, taking place September 28–30 in Chicago.
ASTRO 2025 will once again gather clinicians, researchers, physicists, and industry partners to explore the latest innovations shaping cancer treatment. As part of this global community, gKteso is committed to supporting OEMs with technologies that improve accuracy, efficiency, and workflow integration across radiotherapy systems.
Our Managing Director, Stefan Ueltzhoeffer, will be on site to meet partners, discuss emerging trends, and explore how OEM-ready engineering solutions can accelerate product development – from patient positioning systems to next-generation mechatronics for radiotherapy environments.
If you’re attending ASTRO and want to learn how precision engineering can elevate your radiotherapy innovation pipeline, we’d love to connect.
Exploring the Future of Cardiovascular Innovation at ESC 2025 in Madrid
Hola Madrid! Last weekend, our Managing Directors Guido Kübler and Stefan Ueltzhoeffer attended the European Society of Cardiology (ESC) Congress 2025 – one of the most influential events in cardiovascular medicine. The congress offered a deep dive into the rapidly evolving landscape of cardiology, where advanced imaging, AI-driven diagnostics, and breakthrough clinical data are reshaping care across disciplines.
From real-time decision-support tools to novel visualization technologies, this year’s ESC highlighted how digital intelligence and precision imaging are accelerating progress in both acute and long-term cardiac care. The interdisciplinary exchange underscored how engineering, clinical expertise, and data science increasingly converge to improve outcomes.
A big thank-you to everyone who shared their insights, perspectives, and energy – and to the ESC team for organizing yet another outstanding event. We’re excited to continue exploring how cross-disciplinary innovation can drive the next wave of medical technologies.
Schwarzenbruck Becomes gKteso MedSolutions GmbH: A New Chapter in the gKteso Group
Almost one year after acquiring LAP Sued GmbH, the integration is now officially complete. Our CEO Guido Kübler and Managing Director Stefan Ueltzhoeffer have signed the final documents at the notary – marking the full legal transition of the Schwarzenbruck site into the gKteso Group.
With its new name, gKteso MedSolutions GmbH, the location strengthens our position in radiotherapy engineering and expands our technological portfolio. From Multileaf Collimators (MLCs) to QA phantoms and other precision components, the Schwarzenbruck team adds critical expertise that enhances our capabilities across imaging, positioning, and beam-shaping technologies.
What began in December 2023 as a strategic step to deepen our radiotherapy know-how has now become a fully integrated part of our organization. Together, we are building a future defined by innovation, seamless system integration, and strong partnerships – creating solutions that support OEMs and clinics worldwide.
Welcome to the gKteso Group, gKteso MedSolutions GmbH.
A Summer Tradition at gKteso: Team Spirit That Drives Medical Engineering
Once a year the courtyard at our Bobingen site turns into a place where engineering, teamwork and community come together. The gKteso Sommerfest has grown into a small tradition and shows what stands behind our radiotherapy systems and motion technology. People build technology, not machines.
Teams from Bobingen and Schwarzenbruck spend the afternoon together. Long tables fill the yard, fresh beer and Spanferkel set the tone and the kids turn the bouncy castle into the busiest test rig of the day. The mix of engineering talk and relaxed summer moments creates an atmosphere that connects colleagues across departments and locations.
Medical engineering often needs focus, precision and long development cycles. Days like this show the other side of our work. Trust, collaboration and a shared spirit move our projects forward and shape the solutions we bring to radiotherapy and patient positioning.
The Sommerfest reminds us that real innovation grows in teams that enjoy working together. It supports a work culture where people feel connected and carry that energy back into development, integration and testing.
If you want to see a glimpse behind the scenes, take a look at the video from the event. It shows the campus in summer light and the atmosphere that makes our company culture strong.
From Conference Connection to Collaboration: Building New Stories in MedTech
Great ideas often begin with the right conversation. When we first met Mustafa Kadhim at ESTRO 2025 earlier this year, it immediately became clear that we shared the same drive: making innovation in MedTech tangible, authentic, and meaningful.
This week, that initial connection evolved into a focused virtual workshop with our CEO Stefan Ueltzhoeffer and Marketing Manager Larissa Kroder. Together, we explored how to communicate complex OEM engineering stories in a way that is clear, credible, and creatively aligned with real clinical value.
From motion control intelligence to high-precision radiotherapy systems, gKteso’s technologies have a strong narrative behind them – and this collaboration aims to bring that story into the spotlight.
What started as a conference encounter is now moving toward something bigger: a partnership built on transparency, shared expertise, and a passion for impactful communication.
What’s next? Stay tuned something exciting is on the way.
Innovation doesn’t happen at a desk alone.
True innovation doesn’t happen behind closed office doors – it happens where technology is built, tested, and refined. A recent behind-the-scenes moment captured our CEO Guido Kübler, owner and passionate engineer, visiting our team at the Schwarzenbruck site near Nuremberg in the midst of developing a new medical imaging system.
While we can’t reveal the product details just yet, what you can see is the foundation of gKteso engineering: teamwork, curiosity, collaboration, and shared technical passion. These values turn ambitious concepts into clinical-ready solutions.
At gKteso, high-tech requires human connection. Our culture is built on working side-by-side – engineers, specialists, and management alike – right where the innovation happens: at the product itself. Ideas grow stronger when discussed openly, tested hands-on, and shaped directly on the hardware.
Because in medtech engineering, the best solutions emerge not from desks, but from teams working together toward a shared vision.
Inside the Lab: Where Imaging Innovation Meets Regulatory Precision
Somewhere in a quiet corner of our lab, a small but powerful device is doing what it does best: emitting X-rays and keeping secrets. This week, our “secret box” underwent official testing by radiation protection authorities – an essential step that always brings a blend of tension, technical focus, and, of course, plenty of coffee.
Although it looks like a prop straight out of a Cold War film, this unit plays a crucial role in advancing our imaging and shielding designs. Here, we simulate real imaging scenarios, experiment with materials, and validate new concepts to ensure compliance, safety, and performance – long before systems reach OEM development lines or clinical environments.
Through rapid prototyping, fast iteration, and hands-on testing, we push radiotherapy engineering forward with speed and precision. This is how smarter, safer, and more efficient imaging components come to life.
More insights coming soon – once we get the green light (literally).
RPS base MR: MR-Compatible Precision for Adaptive Radiotherapy
High-field imaging, real-time plan adaptation, and full-body treatment coverage demand a positioning platform built specifically for MRI-guided workflows. The RPS base MR delivers exactly that – combining MR compatibility with precise 3DoF motion control and workflow-optimized engineering.
Designed for MRI-guided photon and proton therapy, the non-magnetic platform integrates seamlessly into MRI environments with a low entry height and extended travel ranges. With 2600 mm longitudinal motion, enhanced lateral mobility, and submillimeter accuracy, it enables reliable alignment even for off-center or large-field treatments.
The system is ideally suited for adaptive radiotherapy, supporting distortion-free imaging and real-time anatomical adjustments for regions such as the prostate and thorax. This enhances clinical workflow efficiency while enabling precision-driven plan adaptation.
Built-in patient comfort features – such as integrated coil and headphone routing – reduce cable clutter, shorten setup times, and create a calmer scanning experience.
The RPS Base MR brings stability, flexibility, and imaging clarity to the next generation of MR-guided therapy.
RPS fixed beam: Precision and Stability for Gantry-Less Radiotherapy
Gantry-less radiotherapy is not a compromise – it’s an opportunity to create smarter, more flexible, and cost-efficient treatment environments. The RPS fixed beam system is engineered specifically for ion beam and bore-type photon setups that require uncompromising precision, reproducibility, and workflow adaptability.
With a 6DoF robotic couch and ultra-rigid fixation, the system offers ±5° angular correction, submillimeter accuracy, and simultaneous movement around the isocenter. Its high load capacity of up to 200 kg ensures stable, repeatable positioning even for challenging indications or non-standard patient anatomies.
Designed for clinical and OEM integration, RPS Fixed Beam supports thermoplastic mask systems, headrests, carbon baseplates, indexing accessories, and advanced immobilization techniques. Its flexibility enables upright, horizontal, and seated treatment workflows – ideal for compact rooms, mobile units, or decentralized proton centers.
From proton therapy to stereotactic applications and penumbra-sensitive workflows, RPS fixed beam provides the precision needed for modern image-guided radiotherapy.
Cost-efficient. Modular. Future-ready.
RPS SGRT: Real-Time Motion Control for Frameless Radiotherapy
In motion-sensitive treatments such as SBRT or head-and-neck protocols, every millimeter – and every movement – matters. The RPS SGRT platform is designed to deliver frameless precision through seamless integration with modern surface-guided radiotherapy (SGRT) systems. By enabling real-time monitoring and live intrafraction motion correction, it enhances both safety and treatment accuracy.
Built specifically for surface scanner workflows, RPS SGRT is API-ready, compatible with major OEM systems, and supports fully frameless and adaptive radiotherapy approaches. During treatment, the system continuously tracks the patient’s surface and automatically compensates for deviations with ±3° angular correction, reducing the need for unnecessary imaging or repositioning.
The platform improves safety by preventing unintended beam delivery without tattoos, masks, or invasive markers. With intuitive operation, quick installation, and compatibility with standard indexing systems, it fits naturally into daily clinical routines while maintaining data continuity for adaptive workflows.
The result: a smarter, safer, and more precise SGRT experience for both clinicians and patients.
RPS base: Sub-Degree Precision for Modern Image-Guided Radiotherapy
When treating highly sensitive targets such as the brain, even the smallest deviation can impact clinical outcomes. The RPS base is engineered to deliver real-time 6DoF corrections during IGRT, enabling sub-degree alignment both before and throughout the treatment session. With an angular correction capability of ±5° across all axes, it supports accurate dose delivery even under demanding conditions.
Clinically, the system is optimized for SBRT, SGRT, and daily IGRT, making it especially suited for cranial applications and mask-free positioning workflows. Its precision helps reduce penumbra, increase reproducibility, and improve overall treatment consistency in fractionated and stereotactic protocols.
Designed for everyday use in radiotherapy departments, the RPS base integrates seamlessly into established workflows. It is compatible with carbon baseplates, features a low table height for patient comfort, and offers API readiness for Linac system integration.
With adaptive-ready architecture, the RPS base is built to meet the evolving demands of high-precision radiotherapy centers – today and in the future.
Radiotherapy Positioning Systems Built for Integration
Modern radiotherapy needs positioning systems that adapt to many clinical workflows. Our RPS product line follows this modular approach and supports a wide range of treatment setups. The systems work in cranial applications, full body treatments and MR guided workflows. Each platform combines clinical accuracy, easy integration and clear motion control with minimal room requirements.
The RPS line supports SGRT workflows, MR Linac environments and fixed beam configurations. The systems run stable under daily load and follow defined positioning paths without drift. More than 2000 installations worldwide show how the platforms work in many clinical environments and OEM integration projects.
The design focuses on fast mechanical response, clean motion control and predictable positioning behavior. This helps during conformal dose delivery and supports radiotherapy teams that need reliable patient setups for photon treatments. OEMs use the systems as a base for complete radiotherapy components and build their therapy workflows around the motion platform.
The RPS portfolio covers compact tables for cranial work, large platforms for body treatments and systems that operate inside MR fields. Each model follows the same control logic which keeps integration work short and supports a consistent user experience.
If you plan new radiotherapy solutions with clear positioning control and flexible integration paths, the RPS line gives you a proven base for development and clinical use.
Beyond One MLC: Tailored Multileaf Collimator Designs for Every Radiotherapy Application
Radiotherapy is not one-size-fits-all and neither are multileaf collimators. At gKteso, we develop a full range of MLC designs engineered for different OEM requirements, workflows, and clinical environments. What may look similar on the outside represents highly specialized architectures optimized for cost, performance, or advanced beam-shaping precision.
Our portfolio spans single-focus MLCs for compact, cost-efficient setups; double-focus designs offering near-ideal field edges and penumbra performance; and electron or Co-60 MLCs built with optimized leaf materials for pragmatic, high-impact clinical use. Special-feature variants – such as robotic-arm MLCs, micro-MLCs, or LINAC-optimized high-speed versions – address unique use cases in research and precision therapy.
To support seamless integration, we also provide custom housings, EMC-shielded structures, OEM-specific interfaces, and accessory mounting options. From feasibility studies to high-speed control technology and architectural consulting, we guide OEM engineering teams through every step of the development process.
The result: MLC systems precisely matched to your platform, ready for research or clinical deployment.
From Mechanics to Motion Intelligence: Dynamic Control for Advanced MLC Systems
High-performance MLC systems require more than mechanical precision – they rely on intelligent motion control that delivers speed, stability, and perfect synchronization in real time. That’s why we developed our Dynamic Control Concept, a complete architecture designed to drive high-speed leaf motion with sub-millimeter accuracy and seamless OEM integration.
At the core of this approach is a high-frequency, double-loop PID controller running at 40 kHz, enabling precise control even at extreme accelerations. With leaf speeds above 165 mm/s, leaf acceleration above 1,000 mm/s², and guide acceleration exceeding 10,000 mm/s², the system supports the demands of dynamic treatment plans, IMRT, VMAT, and next-generation beam-shaping strategies.
Accuracy of approximately 0.1 mm, combined with real-time Ethernet communication and integrated safety mechanisms, ensures predictable performance across all motion phases.
From modular hardware to synchronized timestamps and preloading capabilities, our Dynamic Control Concept transforms mechanical movement into motion intelligence – empowering OEMs to push radiotherapy precision even further.
Multileaf Collimator for Precise Radiotherapy Beam Shaping
Our multileaf collimator gives radiotherapy systems a stable base for field aperture control and conformal dose delivery. The device works as a standard MLC for LINAC platforms and supports beam shaping for photon therapy, VMAT and SRS.
The collimator uses 120 leaf pairs for a 40 mal 40 cm field. Inner leaves measure 40 mal 5 mm, outer leaves 2 mal 10 mm. The system reaches an overtravel of 101 % and a bank motion of 272.7 mm. The leaf height measures 80 mm and the complete unit weighs about 125 kg.
The motion hardware reaches leaf speeds above 65 mm pro Sekunde and accelerations above 1000 mm pro Quadratsekunde. A 40 kHz PID control loop holds the leaf path inside a tolerance below 0.1 mm. Integrated interlocks and error handling protect the beam limiting device during clinical operation.
An SDK for Windows und Linux, a complete MLC emulator and a service GUI support fast integration. Remote access and update functions shorten development and service tasks for OEMs and research teams.
This standard beam shaping device fits LINAC integration projects that need compact radiotherapy hardware with exact field control. The machined leaf geometry shapes the photon beam and protects healthy tissue through accurate dose distribution.
From Early Concepts to High-Performance Systems: The Evolution of Our MLC Technology
Over the past three decades, our engineering teams have developed a wide spectrum of multileaf collimators (MLCs) – each tailored to specific clinical needs, OEM architectures, and treatment technologies. From early photon and electron therapy applications to today’s high-performance MLCs integrated into advanced MRI-guided systems, every generation has pushed the limits of precision and motion control.
What began with foundational mechanical designs has evolved into sophisticated beam-shaping platforms characterized by high-precision mechanics, intelligent motion control, and seamless system integration. Along the way, each model addressed different challenges: compact MLCs for cost-sensitive setups, double-focus systems for superior penumbra performance, specialized variants for research environments, and fully motorized solutions for serial OEM production.
This journey illustrates an important truth about medtech innovation: progress is rarely linear. Instead, it adapts to purpose, clinical context, and integration needs.
Explore our MLC evolution proof that tailored engineering delivers meaningful impact in radiotherapy.
