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News LEGEND

Successful Identification of Unknown Corpse Through 3D Implant Analysis – Collaboration Between Forensic Medicine, Neurosurgery, and Industry

The renowned German forensic biologist Dr. Mark Benecke reported on a fascinating criminal case in which the identity of an unknown victim was clarified within 24 hours through the forensic medicine and neurosurgery departments of Leipzig University and Leipzig University Hospital (AöR).
On behalf of the Leipzig public prosecutor’s office, the Institute of Forensic Medicine, in cooperation with engineers from the neurosurgery department, conducted an autopsy on a previously unidentified corpse and successfully established the identity. Due to the absence of personal data, conventional identification methods initially failed. During the autopsy, several medical implants were discovered, including a cranial implant. This raised suspicion among the examining medical experts that it might be a modern, 3D-printed implant.
For further analysis, engineer Katharina Scheidt from the 3D research group “Legend” and neurosurgeon Professor Dirk Winkler were brought in. They identified the cranial implant as a 3D-printed implant made from the high-performance polymer PEEK.
Katharina Scheidt digitally scanned the 3D-printed implant using a 3D scanner. Based on the implant’s design, she was able to identify the company that had created the patient-specific implant using 3D printing. Using the virtual 3D model, the company was able to compare it with their database of manufactured implants and thereby determine the identity of the deceased. The identified personal data was immediately forwarded to the Leipzig public prosecutor’s office, successfully completing the identification process.
This case vividly illustrates how modern forensic medicine, in close collaboration with technology and industry, is opening up new avenues for identification — especially in complex cases where traditional methods reach their limits.

At the TV set of the medical series In aller Freundschaft

Prof. Dirk Winkler stood at the operating table in Germany's most well-known medical series In aller Freundschaft and used our neurosurgical spatial computing navigation. The episode will be broadcast on April 8 on ARD: https://lnkd.in/em2D5KuR

Presentation at Health Care Summit für Spatial Computing in San Diego

It was a great honor for our team to present our research findings at the world's first Health Care Summit for Spatial Computing in San Diego. Big thanks to Afshad Mistri, Tommy Korn, MD, Christopher Tan  and their colleagues for bringing teams together to accomplish big goals.

With Apple's Vision Pro development team on site, we had the opportunity to discuss and further improve our current findings.

another guest appearance on MDR

Once again, Dirk Winkler, Professor of Neurosurgery at Leipzig University Hospital AöR, University of Leipzig, was involved in the filming of the well-known medical series “In aller Freundschaft” and our spatial computing and 3D printing developments were used (Fraunhofer IWU).

2nd place at Saxon Start-up Award

On June 19, 2024, the startup next3D was awarded 2nd place in the Saxon Start-up Award at the Saxon Innovation Conference in Dresden. Next3D emerged from Leipzig University and the Fraunhofer IWU. With the Exist funding program, the transfer from science to clinical routine was demonstrated.

With the mixed reality software platform data goggles, surgeons can determine the current position of the instrument in the patient. A crosshair visualizes the position in the MRI/CT images. This shows the distance to the target area or to risk structures such as blood vessels or nerves.

Presentation of the navigation solution at Apple Development Center

Our surgical navigation development for the Vision Pro convinced Apple. A personal tour of the Apple Spaceship and a joint lunch meeting were important to the Director of the Marketing Division “Health - Care” in order to develop concepts for a cooperation. We are excited and look forward to the next steps.

Spinal neurostimulation training workshop
Therapy for patients with chronic pain syndrome or circulatory disorders that cannot be treated further. On March 14, the workshop for spinal neurostimulation training took place under the direction of Prof. Dirk Winkler.
Apart from Mühlheim, this is the only workshop location for this therapy in Germany.
Introduction of augmented/mixed reality as part of specialist training

Introduction of augmented/mixed reality as part of specialist training with visualization of the tumor or vascular disease to be treated, including the planned surgical approach and intraoperative features.

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Presentation of the Leipzig Deep Brain stimulation unit in New York to leading medical technology companies
3D-printed caps for sterilization bottles

Sterilizing agents were in short supply throughout Germany, but are essential to prevent the further spread of the novel coronavirus. The pharmacy at Leipzig University Hospital therefore began to produce its own sterilant and collected the sterilization bottles already in use at the hospital for refilling. As these bottles were without lids due to their use in manual dispensers, the aim was to design and manufacture 3D-printed caps within 24 hours.

In the first step, an original cap was scanned with a computer tomograph in the radiology department. The resulting virtual model was used as a template to optimize it using computer-aided design (CAD) software. The caps were then produced from a biocompatible and steam-sterilizable plastic using a 3D printer. Before use, the caps were also cleaned and steam sterilized in the central sterilization department at Leipzig University Hospital.

The Leipzig emergency ventilation system from Next3D
Rapid support in the emergency care of Covid19 patients through a 3D-printed emergency ventilator developed by Leipzig University Hospital and Fraunhofer IWU, the testing and modification of which was supported by WHZ. This development took only 7 days. If there are not enough high-tech ventilation systems available, this should be available to doctors as a last option. It is not a certified medical device, but is intended as a last choice. However, the Next3D working group at Leipzig University Hospital is certified in accordance with the medical technology standard ISO13485 and is generally permitted to manufacture and market patient-specific 3D-printed instruments and models, which are considered custom-made products in accordance with the Medical Devices Act. The system is medically supported by Prof. Dirk Winkler (Deputy Director of the Clinic and Polyclinic for Neurosurgery at Leipzig University Hospital), who also has many years of experience as an emergency physician. Partners: Leipzig University, Leipzig University Hospital, West Saxon University of Applied Sciences Zwickau, Fraunhofer Institute for Machine Tools and Forming Technology IWU.

Prof. Dirk Winkler in MDR TV-Show

On September 16, 2022, Prof. Winkler presented the possibilities of 3D printing with practical application examples in the MDR health magazine "Hauptsache Gesund".

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