Patent ID: 6277057
Filing Date: 2001-08-21
Classification: A63B

Abstract:
An ankle rehabilitation device, comprising:a) a base;b) a support arm, coupled to and extending upwardly from the base;c) a foot platform, pivotally disposed on the support arm, configured to receive a user's foot and pivot along a restricted pivot path configured to limit the user's ankle movement to plantar flexion, inversion and internal rotation in one direction along the restricted pivot path, and dorsi flexion, eversion and external rotation in an opposite direction along the restricted pivot path;d) resistance means, coupled to and between the base and the foot platform, for resisting movement of the foot platform with respect to the base; ande) a ball and socket type joint, coupled to and between the foot platform and the support arm, to movably couple the foot platform to the support arm, and including a ball movably disposed in a socket, the socket having an aperture and the ball having a coupling arm attached to the ball and extending through the aperture in the socket, the coupling arm being movable in the aperture as the foot platform moves with respect to the base, the aperture having a non-circular shape and an aperture edge which extends into the aperture to limit movement of the coupling arm, and thus to limit movement of the foot platform.