510 超音波による肉付き大腿骨に挿入された髄内釘横止め穴の位置検出(O.S.生体力学と生体材料)

概要

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It is difficult to insert a locking screw into the transverse holes to fix the broken human bone by the intramedually nail. Generally, the X-ray image is used in conjunction with a target device to detect the hole position. But using the X-ray occurs the crucial exposure problem for doctors and patients. In order to overcome this problem, an ultrasound was utilized for determining the hole position. However, the practically useful method was not yet investigated sufficiently. In this paper, the ultrasound was utilized for detecting the hole position in order to solve this problem. The central position of the transverse holes in intramedullary nail inserted into the pig femur with flesh was investigated using the ultrasonic scanning method by detecter with two normal probes. As a result, the change of echo height reflected from the nail was shown in the convex shapes, and the central position of the nail hole was detect as the maximum position of the convex shape. Moreover, the drill was penetrated toward the nail hole. It was found that the proposed ultrasonic method was available for detecting the central position of the nail hole.
一般社団法人日本機械学会の論文
2001-09-01