Passive Prosthetic Knee

The focus of this project is to create a low-cost, high-performance prosthetic knee that uses only passive mechanical elements to generate a normal walking gait. The device is being designed to meet the mobility and stability needs of above-knee amputees in developing countries and offer improved performance over locked and free-swinging joints. The project includes investigating the fundamental biomechanics of transtibial amputees and codifying how changes in lower leg and foot mass affect desired knee torque and hip energy output throughout the gait cycle. With this insight, we are optimizing simple, passive mechanical elements, such as springs and dampers, to create the correct knee torque to induce desired gait kinematics. Our aim is to provide similar levels of performance as high-end, active-controlled knees at a fraction of the cost, and make a prosthetic technology that will be adopted in developing and developed markets.

Partners

Bhagwan Mahaveer Viklang Sahayata Samiti (BMVSS) Jaipur Foot
Northwestern University Prosthetics-Orthotics Center

Sponsors

Tata Center for Technology and Design
National Science Foundation
Public Service Fellowship (MIT)

Publications

Peer Reviewed Journal Articles

The Effects of the Inertial Properties of Above-Knee Prostheses on Optimal Stiffness, Damping, and Engagement Parameters of Passive Prosthetic Knees [⇩] [🔗 ]
Narang, Y., Arelekatti, V. N. M., & Winter, A., ASME Journal of Biomechanical Engineering (2016)

Design and Preliminary Field Validation of a Fully Passive Prosthetic Knee Mechanism for Users with Transfemoral Amputation in India. [⇩]
Arelekatti, V. N. M., & Winter, A., ASME Journal of Mechanisms and Robotics (In Press, 2016)

The Effects of Prosthesis Inertial Properties on Prosthetic Knee Moment and Hip Energetics Required to Achieve Able-bodied Kinematics [⇩] [🔗 ]
Narang, Y., Arelekatti, V. N. M., & Winter, A., IEEE Transactions of Neural Systems and Rehabilitation Engineering (2015)

Using Human-Centered and Biomechanical Analysis to Determine Design Requirements for a Prosthetic Knee for Use in India
Narang, Y., Arelekatti, V. N. M., Austin-Breneman, J. & Winter, A., (In Review, 2016)

Peer Reviewed Conference Articles

Design of a fully passive prosthetic knee mechanism for transfemoral amputees in India. [⇩] [🔗 ]
Arelekatti, V. N. M., & Winter, A., IEEE International Conference on Rehabilitation Robotics (2015)

Design of Mechanism and Preliminary Field Validation of Low-Cost, Passive Prosthetic Knee for Users with Transfemoral Amputation in India [⇩] [🔗 ]
Arelekatti, V. N. M., & Winter, A., ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (2015)

Effects of Prosthesis Mass on Hip Energetics, Prosthetic Knee Torque, and Prosthetic Knee Stiffness and Damping Parameters Required for Transfemoral Amputees to Walk With Normative Kinematics [⇩] [🔗 ]
Narang, Y., Arelekatti, V. N. M., & Winter, A., ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (2014)

Theses

Design of Low-Cost, Fully Passive Prosthetic Knee for Persons with Transfemoral Amputation in India [🔗 ]
Arelekatti, V. N. M., Master's Thesis (MIT, 2015)

Identification of design requirements for a high-performance, low-cost, passive prosthetic knee through user analysis and dynamic simulation [🔗 ]
Narang, Y., Master's Thesis (MIT, 2013)

Press Articles

MIT News (2015) [🔗 ]