Design of Instrument for Knee Joint Kinematics Measurement

摘要

This thesis describes the process of design and modeling of instrument for knee jointkinematics measurement that can work for both in-vivo and in-vitro subjects. It is designed tobe compatible with imaging machine in a sagittal plane. Due to the invasiveness of theimaging machine, the instrument is designed to be able to function independently. Theflexibility of this instrument allows to measure anthropometrically different subject.Among the sixth degree of freedom of a knee, three rotational and one translational degree offreedom can be measured for both type of subject. The translational, proximal-distal, motion isstimulated by external force directly applied along its axis. These angular and lineardisplacements are measured by magnetic sensors and high precision potentiometersrespectively