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:
May. 05, 2026
Filed:
Dec. 07, 2020
Applicant:
Rehabilitation Institute of Chicago, Chicago, IL (US);
Inventors:
Tom Pickerill, Chicago, IL (US);
James Lipsey, Chicago, IL (US);
Assignee:
Rehabilitation Institute of Chicago, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 2/70 (2006.01); A61F 2/50 (2006.01); A61F 2/64 (2006.01); A61F 2/68 (2006.01); A61F 2/76 (2006.01); G16H 40/63 (2018.01);
U.S. Cl.
CPC ...
A61F 2/70 (2013.01); A61F 2/5044 (2013.01); A61F 2/64 (2013.01); G16H 40/63 (2018.01); A61F 2002/6818 (2013.01); A61F 2002/6863 (2013.01); A61F 2002/701 (2013.01); A61F 2002/704 (2013.01); A61F 2002/7625 (2013.01); A61F 2002/7635 (2013.01); A61F 2002/764 (2013.01);
Abstract
An assistive device is disclosed that includes a plurality of control systems for controlling active and passive tasks. The assistive device accommodates active power generation when needed, but is otherwise configured to switch to passive control for other tasks. The assistive device further includes a continuously variable transmission to optimize movement of the assistive device for a variety of tasks. The assistive device includes a lower limb embodiment defining an artificial knee joint controlled by the plurality of control systems.