Study of multidirectional sliding motion of hip joint and its effect on lubrication of artificial hip joint

• Project/Area Number: 19560145
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: Oita University
• Principal Investigator: IMADO Keiji Oita University, 工学部, 教授 (80160050)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2007: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 人工股関節 / 多方向滑り / 滑り線軌跡 / ゴニオメータ / 方向余弦 / 最小二乗法 / Artificial hip joint / Multi-directional sliding motion / Slide track / Lubricating condition / Goniometer / Directional cosines / High-speed camera / Multi-direction

Research Abstract

A goniometer was developed by which the relative motion between a femoral head and cup surface could be evaluated. For a conventional goniometer, careful collinear positioning is required to minimize the cross talk. But the goniometer developed can be used with no careful positioning. The center of hip joint is calculated through the least square method basing upon a mechanical link model. The angular motion of each subject was evaluated. It was confirmed that the slide track of each subject showed a quite unique pattern and was varied from person to person.

Research Products

• [Journal Article] ゴニオメータによる歩行中の骨頭の滑り線軌跡の評価 (2010)
  • Author(s): 今戸啓二
  • Journal Title: 臨床バイオメカニクス学会誌 Vol.31(掲載決定)
  • NAID: 10027911430
  • Peer Reviewed
• [Journal Article] ゴニオメータによる股関節中心の推定法と滑り線軌跡の算出に関する研究 (2009)
  • Author(s): 三宅宏和, 今戸啓二, 三浦篤義
  • Journal Title: 第30回バイオメカニズム学術講演会SOBIM2009予稿集 Pages: 35-38
• [Journal Article] 自在継手を利用した股関節用ゴニオメータの開発 (2009)
  • Author(s): 今戸啓二
  • Journal Title: 床バイオメカニクス学会誌 Vol.30 Pages: 223-227
  • NAID: 10026981754
  • Peer Reviewed
• [Journal Article] evelopment of simple goniometer for hip joint utilizing universal joint (2009)
  • Author(s): Keiji IMADO
  • Journal Title: Final Program AP Biomech 2009 4th Asian Pacific Conference on Biomechanics Pages: 96-97
• [Journal Article] 自在継手を利用した股関節用ゴニオメータの開発 (2009)
  • Author(s): 今戸啓二
  • Journal Title: 臨床バイオメカニクス学会誌 30 Pages: 223-227
  • NAID: 10026981754
  • Peer Reviewed
• [Journal Article] Development of simple goniometer for hip joint utilizing universal joint (2009)
  • Author(s): 今戸啓二
  • Journal Title: Final Program AP Biomech 2009 4^<th> Asian Pacific Conference on Biomechanics Pages: 96-97
• [Journal Article] 歩行中の骨頭の滑り線軌跡の評価 (2009)
  • Author(s): 今戸啓二
  • Journal Title: 第36回日本臨床バイオメカニクス学会抄録集 Pages: 149-149
• [Journal Article] ゴニオメータによる股関節中心の推定法と滑り線軌跡の算出に関する研究 (2009)
  • Author(s): 三宅宏和, 今戸啓二, 三浦篤義
  • Journal Title: 第30回バイオメカニズム学術講演会 SOBIM2009 予稿集 Pages: 35-38
• [Journal Article] 自在軸受を利用した股関節の運動計測法に関する研究 (2008)
  • Author(s): 三宅宏和, 今戸啓二, 三浦篤義, 河越恒夫
  • Journal Title: 福祉工学シンポジウム2008講演論文集 Pages: 221-224
• [Journal Article] 自在軸受を利用した股関節の運動計測法に関する研究 (2008)
  • Author(s): 三宅宏和, 今戸啓二 三浦篤義, 川越恒夫
  • Journal Title: 福祉工学シンポジウム2008講演論文集 Pages: 221-224
• [Journal Article] 自在軸受を利用した股関節用ゴニオメータの開発 (2008)
  • Author(s): 今戸啓二
  • Journal Title: 第35回日本臨床バイオメカニクス学会抄録集 Pages: 232-232
• [Presentation] 歩行中の骨頭の滑り線軌跡の評価 (2009)
  • Author(s): 今戸啓二
  • Organizer: 第36回日本臨床バイオメカニクス学会
  • Place of Presentation: 松山市
  • Year and Date: 2009-10-16
• [Presentation] 自在軸受を利用した股関節用ゴニオメータの開発 (2008)
  • Author(s): 今戸啓二
  • Organizer: 第35回日本臨床バイオメカニクス学会
  • Place of Presentation: 大阪国際交流センター
  • Year and Date: 2008-11-14