Title
Design, development, and testing of a lightweight hybrid robotic knee prosthesis
Abstract
AbstractWe present a lightweight robotic knee prosthesis with a novel hybrid actuation system that enables passive and active operation modes. The proposed hybrid knee uses a spring-damper system in combination with an electric motor and transmission system, which can be engaged to provide a stair ambulation capability. In comparison to fully powered prostheses that power all ambulation activities, a hybrid knee prosthesis can achieve significant weight reduction by focusing the design of the actuator on a subset of activities without losing the ability to produce equivalent torque and mechanical power in the active mode. The hybrid knee prototype weighs 1.7 kg, including battery and control, and can provide up to 125 Nm of repetitive torque. Experiments with two transfemoral amputee subjects show that the proposed hybrid knee prosthesis can support walking on level ground in the passive mode, as well as stair ambulation with a reciprocal gait pattern in the active mode.
Year
DOI
Venue
2018
10.1177/0278364918785993
Periodicals
Keywords
Field
DocType
Rehabilitation robotics, human-centered and life-like robotics, mechanism design, mechanics, design, and control, physical human-robot interaction, simulation, interfaces, and virtual reality, kinematics
Prosthesis,Kinematics,Control engineering,Mechanism design,Rehabilitation robotics,Mathematics
Journal
Volume
Issue
ISSN
37
8
0278-3649
Citations 
PageRank 
References 
9
0.80
13
Authors
4
Name
Order
Citations
PageRank
Tommaso Lenzi132031.24
Marco Cempini211111.81
Levi J Hargrove343842.47
Todd A. Kuiken41329.41