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Intelligent drilling machine made with igus bearings improves bone fracture operations23-11-2017
In a project called “Smart Drill,” students from Germany’s Bremen Institute of Measurement Technology, Automation and Quality Science (BIMAQ) developed an attachment for a medical drill with the goal of improving the safety of bone fracture operations. When fixing a fracture in osteosynthesis, or by means of surgically uniting the ends of the fracture, it is often necessary for doctors to make screw connections inside of the bone. In this process, the length of the screw must be precise in order to avoid injuring the surrounding tissue structure, and simultaneously to ensure sufficient strength. Determining the bone diameter and depth of the hole can only be ascertained in advance and is established during operation with a gauge. This is currently dependent on the operator’s experience and can lead to errors in screw selection. Thus, to make this process more secure, students at BIMAQ developed an attachment for the existing medical drill that properly measures the length of screws. During the drilling process, the attachment measures the depth of the hole in order to determine the correct screw. Self-lubricating igus bearings made of high performance polymers are used at the bearing points of the drive shaft. |