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In recent years, the term "3D printing" has become familiar to many, especially in the field of medicine, where 3D bio-printing has made remarkable progress. Imagine being able to print any organ in your body—like a tooth, a bone, or even complex organs such as the heart, liver, and kidneys—and then implant them into your body, where they function just like natural organs. While this may sound like science fiction, 3D printing combined with medical technology has already seen real-world success, transforming modern healthcare in significant ways.
A recent case from Harbin highlights the power of this innovation. A 3D lung model was successfully used to assist in a complex surgical procedure. Professor Cui Jian, head of the Department of Thoracic Surgery at the Fourth Affiliated Hospital of Harbin Medical University, performed a thoracoscopic lung segmentectomy using a 3D-printed model of the patient’s lung. This was the first such case in the province and marked a major step forward in personalized surgery.
On the morning of the 9th, a reporter visited Professor Cui's office and saw the 3D lung model that had been used in the operation. The model was transparent, lightweight, and detailed, allowing doctors to touch and explore different parts of the lungs. Professor Cui explained that this model was created based on the patient’s CT scans and accurately represented the structure of their lungs, including the blood vessels, aorta, and pulmonary artery.
One key feature of the model was a unique blood vessel that wasn’t visible on standard CT images. This anomaly was discovered through the 3D model, revealing a special lesion that was pressing against the vessel. Without this visualization, the surgery could have posed serious risks, potentially leading to severe complications.
Two months prior, the patient had a small mass detected in the upper right lobe of the lung. After reviewing the CT scans, Professor Cui decided on a segmental resection to preserve as much healthy lung tissue as possible. To ensure safety, he opted for 3D printing technology. The patient underwent a multi-slice spiral CT scan, which provided high-resolution images. These were then used to create a 3D digital model, which was printed out as a physical model.
With the 3D model, the surgical team could clearly see the tumor’s location and its relationship with surrounding blood vessels. This allowed for more precise planning and significantly reduced the risk of complications during the actual operation.
Professor Cui also demonstrated the 3D lung model on a computer, showing how the lung could be viewed from all angles. The model was interactive, allowing doctors to simulate the surgery before the actual procedure. Using a mouse, they could virtually remove parts of the lung, rehearsing the operation multiple times. This preparation proved invaluable, helping the surgical team perform the operation with greater confidence and accuracy.