Developing biorealistic haptic simulators for physicians’ complex procedures rehearsal and advanced training, the medical device company uses 3DEXPERIENCE on the cloud to design virtual twins of organs that accurately simulate the biomechanical properties of human tissues during medical procedures.

A stunning realism

Rennes University Hospital (CHU Rennes) in France is one of the top medical centers for interventional neuroradiology. Its team of physicians monitor almost 700 patients for brain aneurysms and treat nearly 200 patients per year for ruptured and unruptured aneurysms. Procedures are complex, time consuming and carry a high risk of complications. But revolutionary technology from French-American digital health company Biomodex® is helping to change that. The company’s solution enables physicians to create an exact 3D-printed model of the patient’s aneurysm – or any other specific anatomy – to simulate interventions in advance, so they can choose the optimal device and approach for each individual.

“What we’re offering is the capacity to rehearse an entire procedure on the exact model of the specific patient so that a physician can be better prepared to tackle the actual technical aspects of the case,” said Ziad Rouag, president and CEO of Biomodex.

“Using the models for pre-procedural rehearsals allows us to know in advance if an approach is going to work and, if not, helps us to determine which medical device would be more effective,” said Dr Anthony Le Bras, interventional neuroradiologist at CHU Rennes. “This not only boosts physician confidence, but also reduces operating times and decreases the risk of complications during the real procedure.”

Test of the Biomodex® EVIAS™ station and its cartridge in the cath lab

Biomodex uses the 3DEXPERIENCE® platform to create the sophisticated 3D-printed anatomical twins and simulated procedures. Imaging scans and other diagnostic information are fed into the platform to generate a point cloud, visualize the inside of blood vessels and organs, and construct the 3D virtual model. This is then 3D printed using biomechanical responsive advanced materials to create a patient-specific “cartridge,” which can be plugged into the simulation system for the physician to carry out a lifelike procedure. Unlike basic silicone models already on the market, Biomodex’s models realistically simulate the characteristics and haptic feedback of the individual’s anatomy.

“Biomodex has created a complete solution that replicates the patient’s anatomy, but also the mechanical behavior of the tissue,” Rouag said. “Using these 3D-printed models, physicians get to see and feel how the vessel behaves.”

Through its innovative technology and digital-first approach, Biomodex is helping to support healthy lives, promote well-being for all and improve medical safety in a sustainable manner. Its first solutions on the market are already proving an innovative alternative to the traditional methods used for preoperative preparation and training, and transforming the way the medical profession gains knowledge and experience without putting patients’ lives at risk. This approach is transforming the way medical interns and fellows are taught to perform complex procedures.

“The system is the equivalent of a full-motion flight simulator for training and rehearsing procedures – something that hasn’t really existed in the medical industry before,” Rouag said. “Pilots develop their skills and train in a safe environment, and we wanted to do the same thing for medicine.”

“Since we have had access to the Biomodex 3D prints, we have set up a perfect training program for students,” said Stephan Haulon, professor of vascular surgery and head of the aortic center at Hospital Group Paris Saint-Joseph. “They know that they will come to the cath lab to perform a couple of procedures and throughout the semester they will perform more and more complex procedures. At the end of a six-month rotation in my department, they will have seen real cases and performed the same cases in the cath lab.”

Without the 3DEXPERIENCE platform, we would not be able to achieve our goal.

Ziad Rouag portrait
Ziad Rouag
President and CEO, Biomodex

Partnership critical for growth

Since the company was founded in 2015, it has been supported by Dassault Systèmes and its 3DEXPERIENCE Lab. The startup accelerator program nurtures and empowers disruptive projects with mentoring, training and cloud access on the 3DEXPERIENCE platform set of applications.

“Dassault Systèmes is a critical component of our production as well as our development,” Rouag said. “In the early stages of the business set up, the 3DEXPERIENCE Lab and access to these CATIA and SIMULIA design and simulation apps were instrumental. It allowed us to bring onboard a lot of engineers and work with really advanced tools and software, which eventually led to the development of our technology.”

For Biomodex, the 3DEXPERIENCE platform is more than a simple technology platform; it’s the environment on which it develops all its cutting-edge capabilities.

“The platform gives the team the level of precision we need in terms of data handling and being able to manage the complexity,” Rouag said. “It brings processes a tremendous robustness. For example, when we receive segmented 3D patient images and import them into CATIA, it makes no compromises; we preserve all the data and all the precision throughout. We wouldn’t be able to do all that we do without 3DEXPERIENCE.”

Biomodex® EVIAS™ station and cartridge for unruptured aneurysm designed with the 3DEXPERIENCE platform

Having access to all of the platform cloud capabilities has been advantageous for Biomodex, too. With offices in the US and Europe, the company’s distributed teams are empowered to work together effectively by collaborating seamlessly on the cloud, regardless of location. Biomodex also has more options in terms of balancing its resources and managing office occupancy, as it doesn’t need to have all employees in the office at all times – they can work from home as well.

“The 3DEXPERIENCE platform on the cloud is critical to our manufacturing and R&D process,” Rouag said. “The flexibility and mobility of being on the cloud means people don’t have to be tied to a big, powerful machine in the office. We can access all the applications and data we need on demand, from wherever we are. This has obviously been invaluable during the COVID-19 pandemic, but we have offices in Boston and Paris, so we need that flexibility anyway and really appreciate the ability to work within the virtual world.”

Now, as a fully-fledged business, Biomodex has graduated from the 3DEXPERIENCE Lab and is supporting itself. Dassault Systèmes partner XD Innovation (XDI) provides all ongoing consulting services.

“XDI has been very present, helping us along the way as we’ve made the transition into a Dassault Systèmes customer,” Rouag said. “They have supported us with technical changes and making things clear as we’ve gone from the Lab into the general field. They meet us when possible to sit down and talk through any issues. Even though we still have a lot of direct contact with Dassault Systèmes, XDI has helped us get to our new state of operation.”

Biomodex transseptal cartridge

Realistic patient anatomy twins

There are so many different types of medical procedures that Biomodex could cover that it had to be very focused.

“We decided to concentrate first on the most complex procedures that require the most training and preparation, which is why we launched the Biomodex® EVIAS™ (EndoVascular Intracranial Aneurysm System) station first,” Rouag said. “We know that interventional neurologists use highly complex imaging and have to take specific measurements to ensure the implant fits properly.”

Biomodex also concentrates on cardiovascular procedures. The Biomodex® LAACS™ (Left Atrial Appendage Closure System) station is a training and case-specific rehearsal solution for simulating a procedure that helps prevent stroke by sealing off a small section of the heart.

“There are a number of structural heart procedures that are very complex, so we are developing solutions for them too,” Rouag said. “And then, there are endovascular procedures for aortic aneurysms. These are our primary focus.”

SIMULIA on the 3DEXPERIENCE platform enables Biomodex to accurately simulate how the 3D-printed model of an aneurysm or organ would respond during a procedure. Using SIMULIA, the company carries out finite element analysis (FEA) to determine how each anatomical structure reacts to pressure, incision and separation, just like a living tissue, and identifies points of weakness.

“Without SIMULIA, we would be producing un-lifelike pieces of plastic,” Rouag said. “It would be nothing like a patient’s anatomy in terms of haptic feedback and what it looks like under X-rays. We apply a lot of clinical information, which has been synthesized into a model, and use SIMULIA to actually implement this very precise model and reproduction that comes out of the printer.”

I can no longer visualize myself working without having access to these 3D prints.

Pr Stephan Haulon
Stephan Haulon
Professor of vascular surgery and Head of the aortic center, Hospital Group Paris Saint-Joseph

Critically, SIMULIA enables Biomodex to produce 3D-printed models that feel and behave exactly as they would within the context of a specific area of the body in each individual patient.

“These models are used as input data for our INVIVOTECH® materials, which takes into account the local deformations of the simulated model to optimize a distribution of materials which will be reproduced in the 3D-printed model,” said Frédéric Champ, director of technology development at Biomodex. “The goal is to reproduce the physical sensations and haptic feedback when navigating the catheters in our models to provide a realistic simulation for physicians. For example, when the artery goes through the cranium, it feels hard, almost like a metal pipe, as it passes through the bone.”

With the ability to test new devices in realistic conditions ahead of procedures, both industry and physicians can ensure they will fit and perform exactly as intended.

“Recently, we had an ascending aorta aneurysm 3D-printed and the endograft that I had designed for that specific case was a bit too short,” Pr Haulon said. “Thanks to Biomodex, we were able to change the endograft and ensure it was the perfect design for the procedure.”

Being able to rehearse and define the best procedures ahead of live surgery helps physicians prepare effectively and transforms the patient experience for the better.

“When we perform a new procedure with a new device, we sometimes have quite a high level of stress because we want to make sure that we do it right,” Pr Haulon said. “That’s one main reasons for our collaboration with Biomodex. We can simulate the whole procedure prior to performing it on a patient, using their exact anatomy. It’s a real-life rehearsal with all the team and it makes us feel much more confident. It instills confidence in our patients too. They are happy to learn that we’ve practiced the procedure and tested the device on an exact 3D-printed model of their anatomy.

Biomodex team at work in its Paris office

World-leading medical training

From the start, Biomodex has worked closely with medical experts to understand exactly what they need and how they will benefit from its solutions.

“Listening to the doctors and understanding how they perform their procedures is critical to our success,” Rouag said. “We have a very clinically-oriented culture and I’m proud of it. We don’t work in a vacuum.”

This close working relationship with medical professionals has enabled Biomodex to create products that allow physicians and students to train for procedures they wouldn’t otherwise be able to practice.

“Our partnership with Biomodex has been a real game-changer for our training and development of new procedures,” Pr Haulon said. “I can no longer visualize myself working without having access to these 3D prints.”

“When patients have a clot on their brain, those are procedures you can’t really train for as you’ve got to treat the patient right away,” Rouag said. “How do you train, for example, young neurointerventionalists how to do these procedures versus having them in there with you? There was really nothing out there that mimicked this kind of procedure, so we were asked to develop a model to teach this procedure in a controlled environment in many different scenarios. When we showed the results to one of the world’s leading neurointerventionalists, his response was a big smile and a ‘Wow, I guess you guys have been busy.’ There is no bigger compliment than that.”

Biomodex’s vision is to completely revolutionize how medical professionals plan for complex procedures and be the first choice for medical training and rehearsal solutions.

“Nobody else does what we do in terms of training for these types of procedures with this sophisticated technology,” Rouag said. “We’re ahead of the game and we want to stay that way. Without the 3DEXPERIENCE platform, we would not be able to achieve our goal.”

Biomodex logo

Focus on Biomodex

Biomodex® is a Paris and Boston-based medical technology company whose mission is to transform the way physicians train and rehearse procedures. The company 3D prints anatomical models using advanced materials that provide biorealistic haptic feedback. The next-generation biorealistic haptic simulators are fully customizable and integrate with a patented blood flow system and intraprocedural imaging tools such as transesophageal echocardiography (TEE) and intracardiac echography (ICE), enabling clinicians to gain life-like experience to advance skill sets and promote the adoption of new medical devices or techniques in their pursuit of improving patient outcomes.

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XDI logo

Focus on XD Innovation

XD Innovation is a Dassault Systèmes partner that strives to help its customers innovate more efficiently by supplying the best-in-class technologies powered by the 3DEXPERIENCE platform. The company provides software, consulting and value-added services covering product development technologies, 3D design, engineering, modeling, simulation, data management, process management, and quality and compliance. XD Innovation takes advantage of a consultative customer engagement strategy and rapid implementation methods to provide superior training and support.

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