Volitional EMG controller for powered knee prosthesis
Summary
The USPTO published patent application US20260090900A1 for a volitional EMG controller system for powered knee prostheses, enabling users to climb stairs using signals from muscles like the biceps femoris. Inventors include Tommaso Lenzi, Suzi Creveling, and Lukas R. Gabert, with application filed October 15, 2025.
What changed
The USPTO published patent application US20260090900A1 disclosing a prosthetic system with a powered knee upper leg prosthesis and a volitional controller. The controller uses EMG signals (such as from the biceps femoris muscle) activated by the user, combined with ground state signals and/or IMU signals, to determine target knee torque for operating the powered knee. The system is specifically configured to enable stair climbing.
Patent applications do not impose compliance deadlines or regulatory obligations on third parties. This is an informational publication describing a technical invention for EMG-controlled prosthetic knees. No action is required from manufacturers, healthcare providers, or other parties at this time. This document serves as prior art notice and establishes the priority date of October 15, 2025 for the disclosed invention.
Archived snapshot
Apr 2, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
VOLITIONAL EMG CONTROLLER FOR A POWERED KNEE PROSTHESIS
Application US20260090900A1 Kind: A1 Apr 02, 2026
Inventors
Tommaso Lenzi, Suzi Creveling, Lukas R. Gabert
Abstract
Disclosed are prosthetic systems comprising a powered knee upper leg prosthesis and a volitional controller configured to provide control of the prosthesis to the user. The prosthetic system may be configured to enable a user to climb a set of stairs. The prosthetic system may be activated by the activation of an EMG signal source, such as the biceps femoris muscle of the upper leg. The volitional controller of the prosthetic system may be further configured to receive a ground state signal and/or an IMU signal to determine a target knee torque for operating the powered knee of the prosthesis.
CPC Classifications
A61F 2/72 A61F 2/64 A61F 2002/5003 A61F 2002/701 A61F 2002/704 A61F 2002/7625 A61F 2002/7635 A61F 2002/7645
Filing Date
2025-10-15
Application No.
19358860
Named provisions
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