Bone grinding using coarse-grained diamond wheels to suppress thermal damage
Bone grinding using coarse-grained diamond wheels to suppress thermal damage
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DOI：
10.1016/j.precisioneng.2022.08.003
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发表时间：
2022-08
期刊：
影响因子：
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通讯作者：
T. Mizutani;Urara Satake;T. Enomoto
中科院分区：
文献类型：
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作者：
T. Mizutani;Urara Satake;T. Enomoto
骨骼是人体的硬组织，在脊柱、关节和脑部手术中经常被移除。在内窥镜手术等手术中，钻石砂轮被广泛用于小心去除骨骼。然而，车轮会产生相当大的热量，导致热损伤，如热性骨坏死和对邻近组织的热损伤。已经进行了大量研究，以抑制使用#120-#200(粒度)砂轮产生的热量；值得注意的是，在实际手术中经常使用#30-#120砂轮以减少操作时间。在这项研究中，研究了当使用粗粒砂轮，即#30砂轮时，与温度升高相关的骨磨削特性。结果表明，由于砂轮晶粒度较大，导致温度升高。此外，车轮转速的降低有效地抑制了温升。因此，切割深度的增加和骨与颗粒之间产生的摩擦热的减少有效地抑制了温度的升高。
Bones, which are hard tissues in the human body, are frequently removed during spine, joint, and brain surgeries. Diamond grinding wheels are widely used for the careful removal of bones during surgeries such as an endoscopic surgery. However, the wheels generate a considerable amount of heat, causing thermal damage, such as thermal bone necrosis and thermal injury to adjacent tissues. Considerable research has been conducted to suppress this heat generation using #120–#200 (grit size) wheels; notably, #30–#120 wheels are often used in actual surgeries to reduce the operating time. In this study, the bone grinding characteristics associated with a temperature increase were studied when using a coarse-grained wheel, i.e., a #30 wheel. Results showed that the temperature increased owing to the large grain size of the wheel. Furthermore, a decrease in the rotation speed of the wheel effectively suppressed the temperature increase. Consequently, an increase in the grain depth of cut and a decrease in the generated frictional heat between bone and grains effectively suppressed the temperature increase.