Design of Instrument for Knee Joint Kinematics Measurement
Shiferaw, Berhanu (2012)
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe201210259499
https://urn.fi/URN:NBN:fi-fe201210259499
Tiivistelmä
This thesis describes the process of design and modeling of instrument for knee joint
kinematics measurement that can work for both in-vivo and in-vitro subjects. It is designed to
be compatible with imaging machine in a sagittal plane. Due to the invasiveness of the
imaging machine, the instrument is designed to be able to function independently. The
flexibility of this instrument allows to measure anthropometrically different subject.
Among the sixth degree of freedom of a knee, three rotational and one translational degree of
freedom can be measured for both type of subject. The translational, proximal-distal, motion is
stimulated by external force directly applied along its axis. These angular and linear
displacements are measured by magnetic sensors and high precision potentiometers
respectively
kinematics measurement that can work for both in-vivo and in-vitro subjects. It is designed to
be compatible with imaging machine in a sagittal plane. Due to the invasiveness of the
imaging machine, the instrument is designed to be able to function independently. The
flexibility of this instrument allows to measure anthropometrically different subject.
Among the sixth degree of freedom of a knee, three rotational and one translational degree of
freedom can be measured for both type of subject. The translational, proximal-distal, motion is
stimulated by external force directly applied along its axis. These angular and linear
displacements are measured by magnetic sensors and high precision potentiometers
respectively