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The University of Southampton
Engineering

Research project: Upgrade and validate simulator

Currently Active: 
Yes

To understand why hip implants fail.

The ProSim hip wear simulator that DePuy donated to nCATS was in need of upgrading and repair. Heaters were added to maintain the test temperature at normal body temperature; every bearing in the noisy old simulator was replaced and other problems were identified and solved. The simulator now reliably purrs along with motions that follow standard guidelines and forces that achieve the required peaks needed to simulate the human gait cycle.

Ten metal-on-metal hip implants were donated by UK implant manufacturer MatOrtho to validate the refurbished simulator. Each station needs to be validated to show that after five million cycles it produces wear on the hip implants that is representative of what is seen in normal functioning implants at about the same point in time.








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