3D printing goes to clinical price
The 32-year-old Shaanxi Hanzhong young man Li Wei experienced a special operation. In the operating room of the First Affiliated Hospital of Xi'an Jiaotong University, the doctor carefully implanted a skull "skeleton" into his head. Unlike the usual cranioplasty, this "skeleton" is custom-made for the "bone" of Li Wei with a 3D printer. 3D printing technology has become a "new darling" in the field of biomedicine. Bone prints entered clinical trials in many hospitals in China. A biological 3D printer in Hangzhou printed blood vessels, fat and liver tissue in the laboratory. One day in the future, can it print out replacements on demand to replace diseased organs that have been invaded by cancer cells, or are they constantly beating? In the eyes of optimistic researchers, it takes at least 15-20 years. Customized bone The idea of ​​3D printing originated in the United States at the end of the 19th century and has been developed since the 1980s. In China, 3D printing research has been around for 20 years. This technology, which can superimpose “printing materials†layer by layer, has become popular in the past two years. At the World 3D Printing Technology Industry Conference held at the end of May this year, researchers shared 3D printed products, clothing, shoes, jewelry, and even snacks and meat. An engineer in the Netherlands also plans to print a house with a giant 3D printer. Initially, 3D printing was used in the biomedical field to create medical models, and the bones or organs in the body were printed before surgery for the doctor to communicate with the patient or to develop a surgical plan. Now its finished product has successfully entered the human body. On August 17, the first affiliated hospital of Xi'an Jiaotong University completed a skull repair operation, and the implants used were printed by 3D printing technology using high molecular biomaterials. The 32-year-old Shaanxi Hanzhong young man Li Wei became the first patient to eat crabs. At the end of 2010, when Li Wei riding a motorcycle on the village road, he fell into a deep ditch more than 2 meters. The county hospital immediately performed surgery to remove the broken skull and repaired the skull after half a year. "Because of the skull defect, when the body is tilted, the brain tissue will protrude from the skull gap," Li said. Professor Wang Maode, one of the chief surgeons of the operation and director of the Department of Neurosurgery of the First Affiliated Hospital of Xi'an Jiaotong University, said that the previous skull repair surgery usually used titanium metal, and this time it used a medical high called polyetheretherketone (PEEK). Molecular biological materials. "The advantage of the new material compared with the traditional titanium mesh is that there will be no artifacts in the postoperative imaging examination, which is conducive to the diagnosis of the follow-up condition. The skull repair material made by 3D printing technology is completely in line with the physiological anatomical curvature of the patient, truly ' Tailored," said Wang Maode. Because of the high cost of imported raw materials, it takes 80-100,000 yuan to customize such a "skeleton". After the operation, Li Wei felt that the head suddenly hurts suddenly, but it is not strong. He is "not too worried, and will go back to check next month." At present, the First Affiliated Hospital of Xi'an Jiaotong University has implanted 3D printed biomaterial “skull†for four patients similar to Li Wei. The Peking University Third Hospital has also been released by the media, and has been planted for more than 40 patients in June this year. Into the "skeleton" of 3D printing. YT-T13 YT-T13 Shenzhen Sunshine Technology Co.,Ltd , https://www.yatwinsz.com