Patent ID: 9114255
Filing Date: 2015-08-25
Classification: A61B,A61N,A63B

Abstract:
1. A device for use by a human subject in a seated, upright condition in conjunction with one or more electrodes for transmitting electrical stimulation to at least one muscle of a leg to perform an isometric contraction of the muscle, said device comprising: a brace including a seat adapted for receiving and supporting an upper portion of the leg of the subject in the seated, upright condition, the brace including a lower extension depending from the seat and configured to constrain a lower portion of the leg in order to allow the isometric contraction of the muscle to be achieved; a stimulator for transmitting electrical stimulation to at least one muscle to cause the isometric contraction of the muscle; and a controller for controlling the stimulation through the electrodes based at least partially on the sensed force; wherein the controller is adapted to use an adaptive feed forward control algorithm to compare a sensed force during a first contraction cycle to a predetermined force goal and to adjust the stimulation during a subsequent contraction cycle based on said sensed force.