Ultrasonic Technique for Contact Mechanism Estimation of an Artificial Hip Joint.

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  • 超音波を利用した人工股関節の接触メカニズム評価法の検討
  • チョウオンパ オ リヨウ シタ ジンコウ コ カンセツ ノ セッショク メカニ

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Abstract

An ultrasonic techniques was developed to study the characteristics for contact mechanics of an artificial hip joint. Total Hip Replacement model was used to determine contact pressure distribution on an artificial aceptabular cup subjected to compressive load ranged from 196 N to 588 N in four femur positions. The contact pressure was found to be nonuniform and less than 6 MPa. It was shown that the tendency of the pressure distribution is in agreement with that obtained by the computer simulation. Some preliminary results were also presented to illustrate the effect of the direction and the magnitude of the load applied to a stem on the contact pressure distribution on the aceptabular cup and to evaluate the contact mechanism of the artificial hip joint.

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