Artificial Hip Joint for Reduced Friction and Wear
- Detailed Technology Description
- A novel artificial hip joint was designed that enables reduced friction and wear, resulting in a healthier, longer-lasting replacement joint.
- Others
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- Patent application: WO2014043236
- Boedo, S.; Booker, J.F., "A Novel Elastic Squeeze Film Total Hip Replacement," J. Tribol. 136(1), 011101 (August 2013)
- Boedo, Stephen; Booker, John F., "A Novel Elastic Squeeze Film Total Hip Replacement," Cornell Technology Venture Forum poster (October 2012)
- Boedo, Stephen; Booker, John F., "A Novel Elastic Squeeze Film Total Hip Replacement," Cornell Technology Venture Forum presentation (October 2012)
- *Abstract
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A novel artificial hip joint wasdesigned that enables reduced friction and wear, resulting in a healthier,longer-lasting replacement joint. Elastic elements and a non-spherical cupsurface are incorporated in the design to exploit 'squeeze-film' action. Anorder of magnitude improvement in film thickness and reduction in lubricantfilm pressure compared with conventional designs are the result. Optimalsqueeze-film bearing performance during the stance-phase portion of the gait cycleis accomplished through the ellipsoidal cup geometry. Furthermore,computational analysis predicts that the cavitation region developed during theswing-phase portion of the gait cycle does refill with synovial fluid underplausible ball and cup separation velocities.
Potential Application: Prosthetic total hip replacement joints
Advantages:
- Reduced wear due to thicker film and lower, more evenly distributed film pressure
- More durable design eliminates wear particles prevalent with alternative designs and materials
- *Licensing
- Martin Teschlmt439@cornell.edu(607) 254-4454
- Country/Region
- USA
