Ekso Bionics Holdings, Inc.

Geoffrey W Kennard

Ryan J Farris

Spencer Murray

Spencer A Murray

An actuator system for an orthotic device includes an actuator assembly and a driven joint member connected remotely from the actuator assembly by flexible cabling to permit flexibility in positioning the driven joint member relative to the actuator assembly. The actuator system includes an actuator assembly having a motor and a first portion of a transmission assembly that provides a speed reduction of a motor speed to an output speed. The driven joint member has an output portion of the transmission assembly and a connector component for connecting the driven joint member to a brace component of the orthotic device. The driven joint member including the output portion of the transmission assembly is connected remotely from the actuator assembly by flexible cabling that runs between the actuator assembly and the driven joint component, to permit flexibility in positioning the driven joint member relative to the actuator assembly.

Remote actuation configuration for powered orthotic devices

An electromagnetic brake assembly includes a solenoid coil; a fixed ferrous brake stator; a ferrous armature having a braking face, wherein the armature is moveable in a translation direction relative to the brake stator between a disengaged position and an engaged position; and a rotating member including a mating surface and that rotates relative to the armature when the armature is in the disengaged position. When the solenoid coil is energized, the armature translationally moves from the disengaged position to the engaged position, and in the engaged position the braking face of the armature interacts with the mating surface of the rotating member to apply a braking force to the rotating member. The braking face and the mating surface may form a conical interface, and the conical interface further may include a friction O-ring positioned within a slot that permits the O-ring to roll along the braking interface when the armature moves between the disengaged position and the engaged position.

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Arvada, CO, United States of America

Geoffrey W Kennard