Ultrasonic Vibration Assisted Drilling in Cortical Bone Experiment: a Comparative Study of Twist Drill And Three-Point Drill

Drilling is one of the most important surgical methods in surgical plastic surgery. However, when the medical twist drill is used, since the bone is mostly curved, the twisted edge of the twist drill is long, so there is a problem that the centering ability is poor. Therefore, in the bone drilling, it is easy to cause the deviation of the hole position, the hole shape is not round, and the hole diameter is too large. In response to this problem, the use of a three-point drill with better centering ability and the application of ultrasonic vibration to drill the cortical bone. Through research, it is found that ultrasonic vibration assisted three-point drilling (UATD) drilling not only improves the problem of poor centering ability during bone drilling, but also compares with ultrasonic vibration assisted medical twist drill (UAD) drilling, which is found in three-point drilling. The thrust force, drilling temperature and surface roughness are greatly reduced compared with medical twist drill drilling, and the drilling diameter accuracy is greatly improved. Three-point drilling and drilling under ultrasonic vibration greatly improved the surface quality of the hole, providing a reference for surgery and expanding medical drilling equipment.