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:
Jan. 07, 2025
Filed:
Oct. 21, 2021
U.s. Government As Represented BY the Department of Veterans Affairs, Washington, DC (US);
Andrew Howard Hansen, Apple Valley, MN (US);
Edwin Kay Iversen, Salt Lake City, UT (US);
Eric Alexander Nickel, Brooklyn Park, MN (US);
Gregory O. Voss, Apple Valley, MN (US);
Gregory James Jacobs, Salt Lake City, UT (US);
Carter J. Greene, West Valley City, UT (US);
Jeffery David Christenson, West Valley City, UT (US);
Motion Control, Salt Lake City, UT (US);
The United States Government As Represented by the Department Of Veterans Affairs, Washington, DC (US);
Abstract
Technology is described to provide a foot and ankle prosthesis for individuals with lower limb loss. This technology is able to store and release energy and individuals or patients who are using the foot/ankle prosthesis may be able to expend less energy when walking. The system includes a hydraulic damper attached to dynamic energy storing spring elements. The axis of rotation of the system can be near to that of an intact human ankle, providing biomimetic function. The system can utilize spring elements based on the vertical displacement of the center of pressure of an intact normal foot. A hydraulic system can provide user adjustable heel height and adaptation to inclines. The dorsiflexion and plantar flexion resistances can be independently adjusted manually or electrically. In addition, the system can be automatically locked in dorsiflexion when loaded and unlock when unloaded.