Capacitive extensometer particularly suited for measuring in viv

Surgery – Instruments – Orthopedic instrumentation

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606102, A61B 1756

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active

060597844

ABSTRACT:
The present invention provides for in vivo measurements of the principal strain magnitudes and directions, and maximum shear strain that occurs in a material, such as human bone, when it is loaded (or subjected to a load). In one embodiment the invention includes a capacitive delta extensometer arranged with six sensors in a three piece configuration, with each sensor of each pair spaced apart from each other by 120 degrees.

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