On the afternoon of July 10th, the world's first 3D printed titanium alloy scorpion--a public health operation to treat the world's endangered wild red-crowned crane, was successfully carried out in Guangzhou Lide Animal Hospital. In just 30 minutes of surgery, behind the three groups of teams have been working together for more than a month.
Figure 1 (Red-crowned crane successfully installed 3D printed titanium alloy)
One day in the first half of June, Lide Animal Hospital welcomed an uninvited guest, the national first-class wild protected animal, the red-crowned crane. Three weeks ago, because of "fighting" in the zoo, the upper jaw was almost completely broken, and the infection of the broken end caused the upper jaw to be completely necrotic. Due to the lack of upper jaw, the red-crowned crane is unable to eat on its own and endangers life. Hospital nurses spend two or three hours a day feeding hundreds of red-crowned cranes (standing) to maintain their lives.
Figure 2 (The captain of the red-crowned crane)
The red-crowned crane is the world's endangered wild animal and is also a national first-class protected animal. There are only more than 1,000 in China. The life expectancy of red-crowned cranes can reach 50-60 years, while "standing" is only 6 years old.
Dr. Wu, Dean of Guangzhou Lide Animal Hospital, Dr. Chen Wei, General Manager of Guangzhou Yangming New Material Technology Co., Ltd., and Dr. Song Changhui of the Additive Manufacturing Laboratory of South China University of Technology, decided to install a 3D printed certificate for it. Human scientific and technological achievements are applied to the rescue of red-crowned cranes. A significant rescue activity began.
Because of the global precedent, there is never a precedent for the red-crowned crane 3D printing, and because of the red-crowned crane's crotch, the overall shape is slender, the interior is hollow structure, the upper jaw fracture surface is uneven, and the position for fixing the nail can be used too little. , the organization of nerve organs and complex conditions, etc., resulting in the production of sputum is very difficult. In the face of difficulties, young brave people are not timid, they conduct in-depth communication research, the program will be quickly determined: in order to steal time, obtain accurate data, save costs, first use FDM technology 3D printing plastic mold for trial installation, to shape determination After that, titanium alloy was used as the material of the bismuth, and the laser sintering equipment was used to print the plaque.
The injured red-crowned crane has a life span of more than 50 years. Due to its characteristics, the plastic material cannot be accompanied by its life. The titanium alloy material is suitable for printing, and its light weight, high hardness and strong corrosion resistance are the most suitable materials. However, without accurate data, direct 3D printing of titanium alloy can not be successful once. If it is repeated many times, time and cost can not be consumed, so FDM is selected in combination with metal sintering.
Figure 3 (Yang Ming Chen Bo is measuring three-dimensional data of the red-crowned crane
Figure 4 (Chen Bo and Huagong technicians discuss the model making plan)
Figure 5 (Drawing mold drawing after measuring the data)
Figure 6 (Yangming FDM printed seven red-crowned cranes model)
After 7 modifications and installation tests of the plastic mold, the final version was finalized.
Figure 7 (Doctor is a red-crowned crane to test the FDM print)
The final version of the 3D data was sent to Huagong to make a titanium alloy prosthesis using a metal 3D printer . A few days later, the "titanium" titanium alloy was successfully produced.
Figure 8 (Chinese alloy laser sintered printing titanium alloy red-crowned crane
On July 10, the animal hospital officially started surgery. After receiving anesthesia in "standing" and entering a coma, the doctors completed the installation of the entire righteousness within 30 minutes according to the planned surgical plan.
Figure 9 (Doctors at the Animal Hospital are performing a squat installation for "Standing")
Figure 10 (stand-up after surgery to adapt to the new bird's beak)
When "Li Li" slowly woke up, I realized that I had a new bird's beak. Under the intense gaze of everyone, it began to chase the small fish in the bucket and finally caught one. "Li Li" is now able to eat independently. At this time, everyone has a long breath, and more than a month of hard work has finally paid off.
Figure 11 (Red-crowned crane ''Li Li'' has been able to catch fish by itself)
This is a successful example of the application of 3D printing technology to wildlife rescue. It is also a perfect application case for the combination of 3D printing fused deposition (FDM) technology and laser sintering (SLM) technology. The high efficiency, convenience and stability of the industrial grade FDM technology have laid a precise foundation for the Danding Heyi model, saving a lot of time and cost. The SLM printing technology is sturdy, durable and safe. It is a long-lived animal, the red-crowned crane, with its lifelong ambition.
With the success of the first 3D printing rescue project for the world's endangered wildlife red-crowned crane, the pioneering application of 3D printing in animal rescue precision medical applications has proven that the complementary effects of FDM and laser sintering cannot be achieved in precision medicine. Xiao Yan, solves the problems of time, precision and cost for 3D printing precision medical applications, and expands the application space of 3D printing.
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