Powered orthosis with combined motor and gear technology
AssigneeBoard of Regents, The University of Texas System
InventorsRobert D. Gregg, IV, Hanqi Zhu
Life of this patent
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Abstract
The present disclosure includes, in one embodiment, an orthosis device. The orthosis device, in one embodiment, includes an actuator housing, an electric motor contained within the actuator housing, the electric motor including a motor stator and a motor rotor forming an inner diameter, and the electric motor further having high output torque. The orthosis device according to this embodiment further includes a transmission including a gear system contained within the actuator housing, the gear system positioned within the inner diameter of the electric motor, and a body attachment coupled to an output of the gear system.
Claims20
An orthosis device, comprising:
- an actuator housing;
- an electric motor contained within the actuator housing, the electric motor including a motor stator and a motor rotor forming an inner diameter, and the electric motor further having high output torque;
- a gear-reduction transmission including a gear system contained within the actuator housing, the gear system positioned within the inner diameter of the electric motor and the motor rotor being directly connected to an input of the transmission;
- and
- a body attachment coupled to an output of the gear system, wherein a combination of the electric motor and the transmission, and how they engage one another, enable the orthosis device to be user backdrivable such that a static backdrive torque of the device at the output of the gear system is less than 20 Nm and is a minimum backdrive torque to begin motion of the motor rotor.
Dependencies are inferred from the claim text.