Patent ID: 7942785
Filing Date: 2011-05-17
Classification: A61B,A61H,A63B

Abstract:
1. A method of measuring joint range of motion, comprising: a) providing a casing of substantially cylindrical shape, of sufficient size to accommodate the grip of a human hand, and with walls fabricated of a water-tight and substantially transparent material, and having a top and a bottom, b) providing a fluid inside of said casing, c) providing a plurality of calibration means for providing predefined graduated incremental scale of values when mounted along the length of and around the circumference of said casing, d) selecting a human arm as the subject for the measurement activities, e) bending a elbow of said human arm to 90 degrees and holding said elbow next to the human's body, f) gripping said casing in a pre-determined location with said human hand of said human arm, g) performing various bending and rotation movements with said human hand gripping said casing, which causes said fluid to simultaneously shift locations within said casing due to the downward pull of gravity, h) viewing the point of intersection of said fluid on said calibration means at the point where no additional movement of said human hand is possible, whereby a measurement of joint range of motion is obtained.