3D printing technology is becoming more and more widely used. From the beginning of printing crafts and machine parts, it has now developed to make cars, and the application of 3D printing technology in medicine is increasing. Today, patients in Luoyang have been able to enjoy the benefits of this advanced technology. Recently, the Joint Research Center for Digital Medical Applications (hereinafter referred to as the Research Center) jointly established by the Joint Research Center for 3D Printing Medicine of Shanghai Jiao Tong University School of Medicine and Luoyang Zhenggu Hospital of Henan Province was officially listed. 3D printing technology was used to treat orthopedic diseases. Light-curing high-precision rapid prototyping equipment, after the patient's CT data is collected and summarized by the computer, the technician designs and produces a three-dimensional model of the bone, and then copies the model data to the device, and the photosensitive resin material that is injected in advance in the device is in the computer. Printing is possible under control. 3D printing technology can replicate the patient's bones 1:1. The printed model is almost identical to the patient's own bone. It takes about 3 hours to print the adult hand bone model. What are the prints of "bone"? Currently, they are primarily used to help design preoperative protocols for orthopedic surgery. A few days ago, Luoyang Zhenggu Hospital of Henan Province came to a patient with loose hip prosthesis. Because it is necessary to remove the prosthesis that has been implanted in the body for 19 years, it is difficult to operate. The patient's attending physician, Tang Hongtao, took CT data and asked the technician to print a bone model.
For the most common waxy and sweet corn on the market, waxy corn has a higher nutrient content than regular corn, containing 70-75% starch (and almost all straight-chain starch), more than 10% protein, 4-5% fat and 2% multivitamins, with more grains, VA, VB1 and VB2 in protein than rice, with the highest fat and VB2 content. Yellow maize also contains carotenoids, such as rice and wheat. The molecular weight of waxy maize starch is more than 10 times smaller than that of ordinary maize, and the starch makes glutinous rice sticky and soft, softer than ordinary hard maize. It is more than 20% more digestible to eat than regular maize and it is suitable for people with less than perfect teeth. At the same time, it is not suitable for diabetics because of the very high content of straight-chain starch (a polysaccharide).
Waxy maize is also known as sticky maize. The grain has coarse, waxy endosperm, similar to shiny, glassy (clear) grains such as hard and dent maize. Its chemical and physical characteristics are controlled by a recessive gene, which is located on chromosome 9. 100% of the starch in the endosperm is straight-chain starch.
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Shanghai Jiaotong University and Luoyang City formally established 3D printing medical center