Friction measurements by robotic aim under force control to assess the joint degeneration and the efficacy of some kind of treatments.

机器人在力控制下进行摩擦测量，以评估关节退化和某种治疗的效果。

• 批准号: 14580829
• 负责人: MABUCHI Kiyoshi
• 金额: $ 2.37万
• 依托单位: KITASATO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14580829/
• 关键词: Biotribology; Knee joint; Temporomandibular joint; Osteoarthritis; Friction; Lubrication; Robotics

It is generally accepted that occlusion failure must cause the degeneration of temporomandibular joints. Lubrication mechanism of joints can be disturbed because of lopsided contact position. The relationship between the level of occlusion failiure and the joint function has not been quantitatively clarified, yet. Porcine temporomandibular joints were used for the experiment. A system for measuring joint friction was designed using a robotic arm, a universal force sensor and a personal computer. Friction between the maxilla and the mandible was measured under the various conditions of occlusion. Additionally, the occlusion conditions were assessed by the distribution of contact pressure, which was measured by pressure sensitive films. The coefficient of friction increased from 0.04 to about 0.1 when the mandible moved to 3 mm external or internal position. In that case, high pressure area was concentrated to lateral side. As the results, it was found that lopsided occlusion of temporomandibular joints lowers the lubrication ability of articular cartilage with the rise in contact pressure.

人们普遍认为，咬合失败必然会导致颞下颌关节退行性变。接头的润滑机制可能会因为不平衡的接触位置而受到干扰。咬合不全程度与关节功能之间的关系尚未定量阐明。实验采用猪颞下颌关节。利用机械臂、万能测力传感器和微机设计了一套关节摩擦力测量系统。在各种咬合条件下测量上颌骨和下颌骨之间的摩擦力。此外，通过压敏片测量接触压力分布来评估闭塞情况。当下颌骨移动到内、外3mm位置时，摩擦系数从0.04增加到0.1左右。在这种情况下，高压区集中在侧面。结果发现，颞下颌关节的不平衡咬合随着接触压力的升高而降低关节软骨的润滑能力。

项目成果

馬渕清資(分担), 他44名: "医療材料・医療機器の安全性と生体適合性"第2章医療機器の力学試験.5.接触圧力分布を指標とした人工関節固定法の評価. 258 (2003)

Kiyosuke Mabuchi（撰稿人）等44：“医疗材料和器械的安全性和生物相容性”第2章医疗器械的机械测试5.以接触压力分布为指标的人工关节固定方法的评估258（2003）。

K.Arnao, H.Mishina, R.Sakai, H.Yoshino, H.Normura, K.Mabuchi: "Optimal stress distribution of the fixation area of a joint prosthesis"Journal of Japanese Society for Clinical Biomechanics. 24. 293-297 (2003)

K.Arnao、H.Mishina、R.Sakai、H.Yoshino、H.Normura、K.Mabuchi：“关节假体固定区域的最佳应力分布”日本临床生物力学学会杂志。

酒井利奈, 糸満盛憲, 高平尚伸, 内山勝文, 雨尾公暁, 馬測清資: "人工股関節における固定部接触面積に依存する応力分布のゆらぎ"日本人工関節学会誌. 33巻. 155-156 (2003)

Rina Sakai、Morinori Itomitsu、Naonobu Takahira、Katsufumi Uchiyama、Kimiaki Amao、Kiyosuke Umasoku：“人工髋关节中固定部分的接触面积引起的应力分布波动”日本人工关节学会杂志第 1 卷。 . 33. 155-156 (2003)

雨尾公暁, 三科博司, 酒井利奈, 吉野洋, 野村寛之, 馬淵清資: "圧力分布の最適化を尺度とした人工股関節固定法の評価"日本臨床バイオメカニクス学会誌. 24巻. 293-297 (2003)

Kimiaki Amao、Hiroshi Mishina、Rina Sakai、Hiroshi Yoshino、Hiroyuki Nomura、Kiyoshi Mabuchi：“基于压力分布优化的人工髋关节固定方法的评估”日本临床生物力学学会杂志 24。 293 -297 （ 2003）

K.Uchiyarma, M.Itoman, M.Ujihira, K.Mabuchi: "Investigation of internal temperature equalization of cancellous bone and cortical bone by microwave heating"Journal of Japanese Society for Clinical Biomechanics. 23. 81-86 (2002)

K.Uchiyama、M.Itoman、M.Ujihira、K.Mabuchi：“微波加热对松质骨和皮质骨内部温度均衡的研究”日本临床生物力学学会杂志。