The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2025
Filed:
Aug. 11, 2023
Arizona Board of Regents on Behalf of Northern Arizona University, Flagstaff, AZ (US);
Zachary F Lerner, Flagstaff, AZ (US);
Emmanuella Tagoe, Flagstaff, AZ (US);
Chancelor Cuddeback, Flagstaff, AZ (US);
ARIZONA BOARD OF REGENTS ON BEHALF OF NORTHERN ARIZONA UNIVERSITY, Flagstaff, AZ (US);
Abstract
An assistive ankle foot orthosis is described. The AFO has a vertical shank member arranged laterally to a user's limb. The member carries a rotational bearing and a rotational element such as a pulley. The rotational bearing is lateral to a user's ankle. The pulley is connected to a footplate. The footplate can be actuated to provide joint movement assistance or resistance to the user upon rotation of the pulley. The AFO includes an ankle angle and angular velocity sensor and a pressure sensor located under the user's forefoot. The AFO includes a controller that computes an estimate of the user's peak joint power on the basis of a series of products of measurements of foot pressure and angular velocity.