APPARATUS AND METHOD FOR IMAGING THE RELATIVE MOTION OF SKELETAL SEGMENTS

摘要

Apparatus provided for the measurement of skeletal joint motion in a subject which comprises a passive motion device, an imaging device and a processing system incorporating a means for real time digital sampling of images of moving joints, means for recognizing templates attributed to individual bones and tracking these automatically using cross-correlation functions and means for geometric transformation of the positional data to graphically display their relative motion over time. Also provided is a method for the automated measurement of the relative motion of skeletal structures in vivo using such apparatus and a method for the diagnosis of a pseudoarthrosis in a subject which comprises the use of such apparatus.

主权项

1. An apparatus for measuring a skeletal joint motion in a subject comprising:
a) a passive motion device adapted and configured to continuously move a skeletal joint of the subject through a range of motion, the passive motion device comprising: a platform base having an upper surface, and a passive motion platform further comprising a static platform connected to the upper surface of the platform base, a moveable platform connected to at least one of the static platform or the upper surface of the platform base, wherein the static platform is adjacent the moveable platform wherein movement of the moveable platform is achieved in operation by a motor in communication with the moveable platform; and b) an imaging device adapted and configured to image the joint of the subject during a motion of the passive motion device.