Low-Cost 3D-Printed Device Opens New Avenues for Glioblastoma Research

Additive manufacturing continues to establish itself as a transformative tool in medical practice. Its ability to produce customized, reproducible, and low-cost devices has allowed fields such as neurosurgery to advance toward solutions that were previously unimaginable. One of the most recent examples comes from a team at Kingston Health Sciences Centre (KHSC) and Queen’s University in Canada. There, clinical researchers have developed and patented a 3D-printed surgical capsule for biopsies that promises to change the way glioblastoma, a highly aggressive brain cancer with no cure, is studied.

Glioblastoma is particularly difficult to study because it is not uniform. Cells vary greatly from one area to another, and a single sample rarely represents what is happening in the entire diseased tissue. Traditional biopsies, taken from isolated points, reveal only a small part of the problem. The new 3D-printed capsule addresses this by allowing multiple samples to be collected during surgery and directly correlated with MRI images. This gives researchers a more complete and organized view of how the tumor behaves as a whole.

The 3D-printed surgical capsule used to perform tumor biopsies during surgery.

From a biomedical engineering perspective, the device is significant. It was designed with criteria that prioritize reproducibility and integration into the standard surgical workflow, so that any center can implement it without specialized hardware. The capsules are produced using standard 3D printers and follow an accessible manufacturing process, resulting in a cost of just 30 cents per unit.

The capsule makes it possible to collect dozens of tissue samples from the tumor during surgery and to precisely identify which part of the brain each sample comes from. This allows the creation of highly detailed maps showing how cells vary from one region to another. With this information, scientists can study the genetic and behavioral differences between different sectors of the tumor more accurately, something that was previously very difficult with traditional biopsies. Neuroscientist Dr. Teresa Purzner explains, “Glioblastoma tumors are incredibly complex and diverse. Traditionally, researchers have been limited to small tissue fragments collected somewhat arbitrarily, which is like trying to study an elephant using only snapshots of its toenail, trunk, or ear. Each one could suggest that you are looking at something completely different.

(From left to right) PhD student Kaytlin Andrews, Dr. James Purzner, and Dr. Teresa Purzner are the inventors of the biopsy capsule.

Thanks to the capsule, it is possible to gain a more detailed understanding of the internal architecture of glioblastoma. This enables the development of more selective surgical strategies as well as improved planning for targeted radiotherapy. Currently, KHSC is the only center in the world using this tool in actual surgeries, although adoption could expand rapidly due to its low cost and ease of 3D printing. The team is already working on creating a collaborative network with hospitals across Ontario and is establishing a biobank to collect patient samples. This could provide an unprecedented database on glioblastoma biology and enhance the identification of patterns.

The capsule is already in use at Kingston Health Sciences Centre.

For the field of 3D printing, this example illustrates how a “simple” tool, designed with precise criteria, can unlock high-impact advances. Additive manufacturing not only allows the production of devices tailored to the specific needs of a procedure, but also democratizes innovation by making it accessible to research centers or hospitals with limited resources. You can learn more about the invention of the capsule HERE.

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*All Photo Credits: Kingston Health Sciences Centre

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