In the face of complex tumor surgery, not only can 3D print a model to study and analyze, doctors can also be skilled in advance.
It is reported that the Xiamen industry has developed 3D printing technology for human organ models and has been applied in medicine. Even more worthy of expectation is that, in the near future, living organs can also be printed directly and implanted into the human body.
The structure is exactly the same as the actual organ
The arteries, veins, liver, and kidneys are wrapped around a tumor. The size, volume, and structure are exactly the same as the actual organs in the human body.
This is the 3D organ model that the staff of Xiamen Qiangben Technology Co., Ltd., which is located in the first phase of the Software Park, just printed out with a 3D printer .
“Directly read hospital CT images and automatically segment bones, organs, blood vessels, tumors, etc.†Wang Boliang, chairman of Qiangben Technology and professor of Xiamen University’s School of Information Technology, said that the core behind the 3D printing is their XMQB. Modeling software, this is the first 3D visualization image quantitative analysis system with completely independent intellectual property rights in China.
Wang Boliang explained that the system can observe the adjacent relationship between the tumor and the organ at any angle and directly generate a 3D printed data model. At present, their own 3D printers are stacked with fuse technology, and the printed organs are flexible.
It is understood that the current model can only print two colors, but will soon develop a variety of colors, more similar to the real organs.
Moreover, the organs thus printed can not only perform the operation of the operation, but also facilitate the interaction between doctors and patients. When the medical students teach, they no longer need autopsy.
Has been applied to four or five cases of tumor surgery
"Visual reconstruction and 3D printing allow us to see where the tumor is and the boundary between the tumor and blood vessels and other organs." Li Wengang, director of the Department of Hepatobiliary and Pancreatic Vascular Surgery, 174, told the reporter that it is currently more than a month. Has been used in four or five cases of tumor cutting surgery.
It is understood that the 3D printing of this human organ, especially the retroperitoneal tumor, is applied to clinical medicine. The 174 hospital is the first in Fujian, and no precedent has been seen in China. "Now the main application is in preoperative analysis, tumor evaluation, surgical planning and communication with the patient's family to avoid some misunderstandings." Li Wengang said that compared with the CT imaging of the planar structure, after 3D printing, because of the image, everyone can see at a glance, It is also very convenient and intuitive to explain to patients, and has an understanding of the complexity of surgery.
Li Wengang explained that preoperative evaluation is very important. If some details are not evaluated, the situation will be passive during the operation. For example, retroperitoneal tumors can easily invade nerves, large blood vessels, and even liver, intestines, kidneys, etc., and are difficult to handle. “With improved surgical control, the success rate is higher and the procedure is faster.†Li Wengang said that this function is more valuable for young doctors with relatively little experience.
Live print implant is not a dream
In fact, bone 3D printing, which mainly plays a supporting role and has a fixed role, has been quite popular in clinical applications. There are also many precedents for bladder printing implants without nerves and blood vessels. But more complicated organs are still being overcome.
According to reports, liver transplantation can now be achieved in medicine, but it is expensive, and there is still a risk of spreading after implantation.
"If the liver is cultivated with its own liver cells, it is not only compatible, but also low in cost." Wang Boliang said that the biggest application prospect of 3D printing of human organs is that the printed functions are directly implanted into the human body.
It is understood that foreign countries have already cultivated liver cells by using them as materials, and 3D printed artificial livers. These livers have seven functions, and the normal liver function is about 12 or more.
However, this kind of 3D printing is still only in the experimental stage, and there is no successful case of transplanting to the human body.
Wang Boliang revealed that the Xiamen industry is now working hard to tackle this problem. For example, the Fujian 3D Printing Alliance is promoting cooperation with experts in related medical disciplines, and major research in materials science, bioengineering, and tissue engineering at Xiamen University is also underway.
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