国际利来旗舰厅

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    Austria University of science and technology R & D human bone surgical screw

    Austria University of science and technology R & D human bone surgical screw

    文字:[大][中][小] 2018/6/25     浏览次数:516    

    Bioscientists from the Graz University of science and technology in Austria are developing a surgical screw made of human donated bones to join the feet and chin. For decades, surgery has been done with metal screws, mainly titanium or stainless steel. In the course of operation or after the operation, these metal screws are seen as foreign foreign bodies, and it is often necessary to remove the other discomfort surgery to remove it.


    Department of orthopedics physician Klaus Pastl and Graz University of science and technology jointly developed an alternative screw called Shark Screw, made of human thigh bone. What are the advantages of screws made from bones donated by humans? It doesn't need to remove a metal screw or two more operations, because the bone screws will heal with the bone, and even a year later the X - ray machine can't get the bone screws to be transplanted.

    The operation of the palate must be used for a small screw, which is about 20mm long and can bear great stress, because the size of the jaw muscles is small but the larger muscles in the body. Although the screws used in foot surgery are relatively large (4~6 cm long), they will also encounter great strength, such as correcting the bending force in the operation.


    The design of thread is very important for bending force, shearing force and braking torque. Researchers must investigate and understand the motivation in the bone structure of the foot and jaw. In general, the use of metal screws and the use of biomaterials to make screws are very different. The mechanical principle is the same, but it must be considered that the bone screw will be slightly reduced after cleaning, and will expand in the body after two hours after the end of the operation and become more flexible.


    国际利来旗舰厅 Shark screw is currently manufactured by Surgebright, a new Austria company founded in 2016. The patent technology has been applied in 14 hospitals in Austria.



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