Patent ID: 9510989
Filing Date: 2016-12-06
CPC Classification: A61H

Claim Text:
1. An apparatus for alternately applying flexion and extension forces to a patient's leg, the patient's leg including an upper leg and a lower leg pivotally connected at a knee joint, the apparatus comprising: a base; a first leg support for engaging the patient's upper leg, the first leg support being pivotally connected to the base; a second leg support for engaging the patient's lower leg, the second leg support being linked to the first leg support; at least one front support rod connected between the base and the first leg support; at least one rear support rod connected directly to and between the at least one front support rod and the base, the at least one rear support rod is selectively extendable and retractable, such that a length of the at least one rear support rod increases and decreases as the at least one rear support rod extends and retracts, respectively; a first motor connected to and configured to move the first leg support and second leg support relative to the base in a horizontal direction; a second motor connected to and configured to move the second leg support relative to the first leg support in the horizontal direction, wherein movement of the second leg support by the second motor does not move the first leg support; and wherein the second motor is configured to move the second leg support closer to the first leg support and configured to move the second leg support further from the first leg support to extend or flex the knee joint by applying an extension force or flexion force to the knee joint.